List of Kamen Rider Gaim characters

Five of the Kamen Riders of Kamen Rider Gaim (left to right): Gridon, Baron, Gaim, Ryugen, and Zangetsu. The costume designs come from both fruits and traditional armors from around the world.

Kamen Rider Gaim (仮面ライダー鎧武（ガイム）, Kamen Raidā Gaimu) is a Japanese tokusatsu drama in the Kamen Rider metaseries, written by Gen Urobuchi. Kota Kazuraba must use his newfound powers as the titular hero to battle the mysterious Inves monsters as well as other rival Kamen Riders, all known as "Armored Riders" (アーマードライダー, Āmādo Raidā), in what is described by the show as a "Rider Sengoku Period" (ライダー戦国時代, Raidā Sengoku Jidai). Characters are aligned with each other as members of dance crews, or Beat Riders, and various organizations.

Main characters

Kota Kazuraba

Kota Kazuraba (葛葉 紘汰, Kazuraba Kōta) is an earnest and cheerful yet naïve and short-sighted young adult who wants to help others, but sometimes ends up causing more trouble than good. He was originally the second-in-command of Team Gaim before quitting the team to pursue odd jobs and help his older sister, Akira, after their parents died, before eventually getting a job at Drupers. However, his life is changed after Team Gaim's leader Yuya Sumii arranges a meeting with Kota to show him something that could help their team. This leads Kota to search for Sumii in what he later learns is the Helheim Forest, finding a Sengoku Driver that his friend bought from the mysterious Lockseed Dealer Sid, and an Inves that Kota manages to destroy via the Driver and a Lockseed. While figuring out how best to use his newly acquired powers, Kota witnesses his rival, Kaito Kumon's, summoned Inves go on a rampage and becomes determined to protect people as the samurai-themed Kamen Rider Gaim. After he rejoins Team Gaim in the apparently missing Sumii's stead, Kota inspires others to become Armored Riders themselves.

With help from his friend Mitsuzane Kureshima, Kota eventually discovers Sid works for the Yggdrasil Corporation, who is running an experiment involving the Armored Riders. He also attempts to manage the public's prejudice against the Beat Riders and Zawame's dance teams after they are framed for the invading Inves' infectious properties, during which he learns the truth of Helheim, Yggdrasil's goals, and that the first Inves he killed was actually Sumii. While processing all of this, Kota also learns of the Inves Overlords before he is approached by DJ Sagara, who advises him to shatter the rules Yggdrasil is following in order to change the world for the better. Kota manages to convince the head of Yggdrasil's R&D branch and Mitsuzane's brother, Takatora Kureshima, that they can save the world from the Inves without sacrificing human lives. After sustaining grievous injuries while combating the Overlord Dēmushu's invasion and a sudden attack from Yggdrasil's forces, Kota is again visited by Sagara, who gives him the Kiwami Lockseed. The former uses his newly enhanced power to fight back against the remaining Overlords, though he slowly becomes one himself.

After saving Mitsuzane from the Yomotsuheguri Lockseed and killing a similarly Overlord-empowered Kumon for possession of the Golden Fruit, Kota evolves into the blonde-haired Man of the Beginning (始まりの男, Hajimari no Otoko). Not wanting to destroy Earth nor rule it as it is, he uses his god-like power to transport all of the Inves and Helheim to a barren world at the far end of the universe, where he and a similarly evolved Mai Takatsukasa intend to create new life. Seven months later, Kota returns to help Mitsuzane defeat Kogane before reconciling with his friend and returning to his new world. During Kugai Kudo's reign of terror in the Kamen Rider Gaim tie-in novel, Kota returns to free his friends from Kudo's realm and has a final conversation with him before Kudo passes on to the afterlife.

Kota utilizes the Sengoku Driver (戦極（センゴク）ドライバー, Sengoku Doraibā, Warring Driver) belt in conjunction with the Lockseeds (ロックシード, Rokkushīdo) to transform into Kamen Rider Gaim, whose signature finisher is the Burai Kick (無頼キック, Burai Kikku). While transformed, his sidearm is the katana-like Musou Saber (無双セイバー, Musō Seibā, Unrivaled Saber) pistol sword, which allows him to perform Fruit Charge (フルーツチャージ, Furūtsu Chāji) finishers. He also utilizes fruit-themed armor and weapons called Arms Weapons (アームズウェポン, Āmuzu Wepon), which he can alternate between via Arms Changes (アームズチェンジ, Āmuzu Chenji). Gaim's forms are as follows:

• Orange Arms (オレンジアームズ, Orenji Āmuzu): Gaim's primary form accessed from the Orange (オレンジ, Orenji) Lockseed that grants him the use of the Daidaimaru (大橙丸, Great Orange Circle) sword, which allows him to perform the Daidai Ittō (大橙一刀, Daidai Ittō, Big Orange Strike) finisher. He can also combine the Daidaimaru and Musou Saber to access the former's Naginata Mode (ナギナタモード, Naginata Mōdo), which allows him to perform the Naginata Musou Slicer (ナギナタ無双スライサー, Naginata Musō Suraisā, Naginata Unrivaled Slicer) finisher.
• Pine Arms (パインアームズ, Pain Āmuzu): An auxiliary form accessed from the Pine (パイン, Pain) Lockseed that grants Gaim the use of the Pine Iron (パインアイアン, Pain Aian) meteor hammer, which allows him to perform the Iron Breaker (アイアンブレイカー, Aian Bureikā) finisher. He can also combine the Pine Iron and Musou Saber to access the former's Kusarigama Mode (鎖鎌モード, Kusarigama Mōdo, Chain Sickle Mode).
• Ichigo Arms (イチゴアームズ, Ichigo Āmuzu, Strawberry Arms): An auxiliary form accessed from the Ichigo (イチゴ, Ichigo, Strawberry) Lockseed that grants Gaim the use of multiple Ichigo Kunai (イチゴクナイ, Ichigo Kunai, Strawberry Kunai), which allows him to perform the Kunai Burst (クナイバースト, Kunai Bāsuto) finisher.
• Suika Arms (スイカアームズ, Suika Āmuzu, Watermelon Arms): A mecha-like form accessed from the Suika (スイカ, Watermelon) Lockseed that possesses three different forms: Ōdama Mode (大玉モード, Ōdama Mōdo, Big Ball Mode), an armored watermelon that envelops Gaim for him to roll around in; Yoroi Mode (ヨロイモード, Yoroi Mōdo, Armor Mode), a giant powered suit that grants him the use of the dual-bladed Suika Sōjintō (スイカ双刃刀, Suika Sōjintō, Watermelon Double-Blade Sword) naginata, which allows him to perform the Twin Bladed Split (双刃割り, Sōba-wari) finisher; and Gyro Mode (ジャイロモード, Jairo Mōdo), a flight-capable form equipped with machine gun-like weapons.
• Wizard Arms (ウィザードアームズ, Wizādo Āmuzu): A unique form accessed from the Wizard (ウィザード, Uizādo) Lockseed that grants Gaim the use of Kamen Rider Wizard's WizarSwordGun. This form appears exclusively in the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle.
• 1 Arms (1号アームズ, Ichigō Āmuzu): A unique form accessed from the Shōwa Rider (昭和ライダー, Shōwa Raidā) Lockseed that grants Gaim the use of any one of the fifteen Shōwa Riders' powers, such as Kamen Rider 1. This form appears exclusively in the film Heisei Riders vs. Shōwa Riders: Kamen Rider Taisen feat. Super Sentai.
• Fresh Orange Arms (フレッシュオレンジアームズ, Furesshu Orenji Āmuzu): A unique, sparkling version of Orange Arms accessed from the Fresh Orange (フレッシュオレンジ, Furesshu Orenji) Lockseed that grants Gaim the use of a pair of Daidaimarus, which allow him to perform stronger versions of his regular finishers. This form appears exclusively in the Hyper Battle DVD special Kamen Rider Gaim: Fresh Orange Arms Is Born! ~You Can Also Seize It! The Power of Fresh~.
• Banana Arms: An auxiliary form accessed from the Banana Lockseed that grants Gaim the use of the Bana Spear. This form appears exclusively in the film Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!.
• Durian Arms: An auxiliary form accessed from the Durian Lockseed that grants Gaim the use of a pair of Duri Noko. This form appears exclusively in the film Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!.
• Donguri Arms: An auxiliary form accessed from the Donguri Lockseed that grants Gaim the use of the Donkachi. This form appears exclusively in the film Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!.
• Kachidoki Arms (カチドキアームズ, Kachidoki Āmuzu, Triumph Arms): A form accessed from the Kachidoki (カチドキ, Triumph) Lockseed that grants Gaim increased armor and the use of the Hinawadaidai-DJ-Ju (火縄大橙DJ銃, Hinawadaidai-Dī Jei-Jū, Matchlock Large Orange-DJ-Gun) tanegashima and a pair of Kachidoki Bata (カチドキ旗, Triumph Flag) sashimono. He can also combine the Hinawadaidai-DJ-Ju and Musou Saber to access the former's Taiken Mode (大剣モード, Taiken Mōdo, Great Sword Mode), which allows him to perform the Hinawa Daidai Musou Zan (火縄大橙無双斬, Hinawa Daidai Musō Zan, Matchlock Great Orange Unrivaled Slash) finisher.
  • Kiwami Arms (極アームズ, Kiwami Āmuzu, Extreme Arms): A form accessed from the Kachidoki and Kiwami (極 (きわみ), Extreme) Lockseeds that grants power rivaling that of an Overlord's and the ability to summon any of his fellow Armored Riders' weapons or access their Lockseed powers for his own use. After becoming the Man of the Beginning, Kota can transform directly into Kamen Rider Gaim Kiwami Arms without a Sengoku Driver or Lockseed.
• Drive Arms (ドライブアームズ, Doraibu Āmuzu): A unique form accessed from the Drive (ドライブ, Doraibu) Lockseed that grants Gaim the use of Kamen Rider Drive's Handle-Ken. This form appears exclusively in the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle.

By replacing his Sengoku Driver's Rider Indicator (ライダーインジケーター, Raidā Injikētā) faceplate with the Genesis Core Unit (ゲネシスコアユニット, Geneshisu Koa Yunitto), Gaim can mix the powers of his Orange Lockseed with an Energy Lockseed, producing a set of Jimber (ジンバー, Jinbā) armor that grant various enhanced abilities and use of the Sonic Arrow.

• Jimber Lemon Arms (ジンバーレモンアームズ, Jinbā Remon Āmuzu): Gaim's primary Jimber form accessed from the Orange and Lemon Energy Lockseeds that grants superhuman strength.
• Jimber Cherry Arms (ジンバーチェリーアームズ, Jinbā Cherī Āmuzu): An auxiliary Jimber form accessed from the Orange and Cherry Energy Lockseeds that grants superhuman speed.
• Jimber Peach Arms (ジンバーピーチアームズ, Jinbā Pīchi Āmuzu): An auxiliary Jimber form accessed from the Orange and Peach Energy Lockseeds that grants superhuman hearing, but renders Gaim vulnerable to sonic attacks.

During the events of the film Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!, Kogane brainwashes Kota and grants him the ability to transform into Kamen Rider Gaim Yami (仮面ライダー鎧武闇, Kamen Raidā Gaimu Yami) Black Jimber Arms (ブラックジンバーアームズ, Burakku Jinbā Āmuzu) via the Black Orange (ブラックオレンジ, Burakku Orenji) and Black Lemon Energy (ブラックレモンエナジー, Burakku Remon Enajī) Lockseeds and a Genesis Core Unit.

Additionally, Kota has access to different Lock Vehicles (ロックビークル, Rokku Bīkuru) via flower-themed Lockseeds.

• Sakura Hurricane (サクラハリケーン, Sakura Harikēn): His first and personal motorcycle-esque Lock Vehicle accessed from the corresponding Lockseed.
• Dandeliner (ダンデライナー, Danderainā): An auxiliary hoverbike-esque Lock Vehicle accessed from the corresponding Lockseed.
• Tulip Hopper: An auxiliary walker-esque Lock Vehicle accessed from the corresponding Lockseed.

Kota Kazuraba is portrayed by Gaku Sano (佐野 岳, Sano Gaku). As a child, Kota is portrayed by Hayate Torii (鳥居 颯, Torii Hayate).

Kaito Kumon

Kaito Kumon (駆紋 戒斗, Kumon Kaito) is the brooding leader of Team Baron who bears a strong hatred towards the Yggdrasil Corporation, who bought out his father's construction company as part of their redevelopment plans for Zawame. As a result, Kumon grew up in a poor household, his father became abusive towards him and his mother, and both of his parents eventually committed suicide, leading to the orphaned Kumon falling into the Takatsukasa family's care. This childhood cemented a survival of the fittest-like mentality in his later years and fostered a personal desire to acquire power for himself as he believes he cannot trust anyone else. Despite this, he maintains a strong sense of honor, refusing to lie or cheat to attain his goals, and secretly caring for his team members' safety as well as that of children.

After seeing Kota Kazuraba transform into Armored Rider Gaim and due to Kumon's perceived misuse of Kota's powers, Kumon receives his own Sengoku Driver and the Banana Lockseed from the Lockseed Dealer Sid and becomes Team Baron's Armored Rider, the European knight-themed Kamen Rider Baron (仮面ライダーバロン, Kamen Raidā Baron), to show Kota how he believes power should be used. Following this, Kumon forms an alliance with the Beat Rider groups Teams Raid Wild, Invitto, Pop Up, Soten, and Red Hot to battle Team Gaim, with the intention of using them as pawns and backup dancers. However, the alliance falters when Raid Wild and Invitto discover Kumon's intentions and break off to form their own. After being captured by Yggdrasil, Kumon learns of their secret activities and steals a mass-produced Sengoku Driver for his second-in-command Zack's use before leaving Team Baron to take on the company himself. During this time, Kumon learns of the Overlords and Yggdrasil's true agenda from their scientist Ryoma Sengoku. Livid at the corporation's conduct yet welcoming of the Helheim Forest's invasion, Kumon aids Sengoku in locating the Overlord, Dēmushu, and goes on to battle the latter several times.

When Dēmushu launches the Overlords' invasion, Kumon rallies Zawame's Armored Riders and leads them into battle in order to obtain more power. After being wounded by the Overlord Redyue however, Kumon eats a Helheim fruit and mutates into the Overlord-like Lord Baron (ロード・バロン, Rōdo Baron). Once the transformation is complete, Kumon kills Sengoku before facing Kota in a final battle, in which Kumon is eventually killed. Seven months later, his spirit has come to rest at a sacred tree.

During the events of the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, the alien Megahex uses his powers and Kota's memories to create a replica of Kumon to serve him. However, believing itself to be the real version, it attacks the alien instead and aids the Armored Riders in defeating Megahex before deactivating as a result.

During the events of the web-exclusive miniseries Kamen Sentai Gorider, Kuroto Dan arranges the resurrection of Kumon, among other deceased Riders, as part of a plot to kill Emu Hojo. However, Kazuma Kenzaki arrives to help Emu and the revived Riders stop Kuroto. During the fight, Kumon transforms into the red-colored Akarider (アカライダー, Akaraidā) before joining the fallen Riders in sacrificing themselves to defeat Kuroto and ensure Emu and Kenzaki's survival.

Utilizing a Sengoku Driver and the Banana (バナナ) Lockseed, Kumon can transform into Kamen Rider Baron Banana Arms (バナナアームズ, Banana Āmuzu), whose signature finisher is the Cavaliend (キャバリエンド, Kyabariendo). While transformed, he wields the Bana Spear (バナスピアー, Bana Supiā) lance, which allows him to perform the Spear Victory (スピアビクトリー, Supia Bikutorī) finisher. Like the other Armored Riders, Kumon also possesses additional Lockseeds that grant unique Arms Changes and Weapons, which are as follows:

• Mango Arms (マンゴーアームズ, Mangō Āmuzu): An auxiliary form accessed from the Mango (マンゴ) Lockseed that grants Baron the use of the Mango Punisher (マンゴパニッシャー, Mango Panisshā) morning star, which allows him to perform the Punish Mash (パニッシュマッシュ, Panisshu Masshu) finisher.
• Suika Arms: A mecha-like form accessed from the Suika Lockseed that grants Baron the use of a large watermelon slice-like spear.
• OOO Arms (オーズアームズ, Ōzu Āmuzu): A unique form accessed from the OOO (オーズ, Ōzu) Lockseed that grants Baron the use of Kamen Rider OOO's Medajaribur. This form appears exclusively in the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle.
• Lemon Energy Arms: A stronger form accessed from the Lemon Energy Lockseed and a Genesis Driver that grants Baron the use of the Sonic Arrow.
• Kiwi Arms: An auxiliary form accessed from the Kiwi Lockseed that grants Baron the use of a pair of Kiwi Gekirin. This form appears exclusively in the Hyper Battle DVD special Kamen Rider Gaim: Fresh Orange Arms is Born! ~You Can Also Seize It! The Power of Fresh~.
• Ringo Arms: A unique form accessed from the Forbidden Ringo Lockseed that grants Baron the use of the Apple Reflector and Sword Bringer. This form appears exclusively in the V-Cinema, Gaim Gaiden: Kamen Rider Baron.

As Lord Baron, Kumon wields the Guronbaryamu (グロンバリャム, "Baron" in the Overlord language) longsword and possesses Overlord-esque abilities, such as creating Crack portals and being able to manipulate the Helheim Forest's flora.

Additionally, Kumon has access to different Lock Vehicles via flower-themed Lockseeds.

• Rose Attacker (ローズアタッカー, Rōzu Attakkā): His personal motorcycle-esque Lock Vehicle accessed from the corresponding Lockseed.
• Dandeliner: An auxiliary hoverbike-esque Lock Vehicle accessed from the corresponding Lockseed.

Kaito Kumon is portrayed by Yutaka Kobayashi (小林 豊, Kobayashi Yutaka). As a child, Kumon is portrayed by Kurando Katayama (片山 蔵人, Katayama Kurando).

Mitsuzane Kureshima

Mitsuzane Kureshima (呉島 光実, Kureshima Mitsuzane), also known as "Micchy" (ミッチ, Mitchi) to his friends, is a smart yet manipulative member of Team Gaim who initially conceals his familial relation to his older brother Takatora and wealthy upbringing from his friends as well as his Beat Rider activities from his brother. Despite going to an elite school, Mitsuzane wishes to follow his own path rather than follow in his brother's. After his friend Kota Kazuraba is nearly killed by Kamen Rider Zangetsu, Mitsuzane convinces Sid to give him a Sengoku Driver so he can become Team Gaim's second Armored Rider, the Chinese soldier/dragon-themed Kamen Rider Ryugen (仮面ライダー龍玄, Kamen Raidā Ryūgen). Upon discovering Takatora is Zangetsu, Mitsuzane initially resolves to uncover the truth behind the Yggdrasil Corporation's ties to the Helheim Forest. However, his desire to protect Kota and their mutual friend Mai Takatsukasa from the truth and discovery of what happened to Team Gaim member Yuya Sumii leads Mitsuzane to help Takatora conceal information on the Helheim Forest instead.

Admiring Kota's earnestness while disagreeing with his ideals and methods, Mitsuzane starts to become disillusioned with him, believing he is making Takatsukasa sad by telling her everything he knows of Yggdrasil and the Helheim Forest. After Takatsukasa slaps him for taking his frustrations out on Kota, Mitsuzane becomes unhinged and starts to see Kota as a threat to their friends. In an attempt to kill Kota, Mitsuzane allows Takatora's head scientist Ryoma Sengoku to betray his brother so Mitsuzane can disguise himself as Zangetsu and destroy the partnership Takatora had formed with Kota by this point in time as well as form an alliance with Sid to obtain the Forbidden Fruit. Following Sid's death however, Mitsuzane forms a new alliance with the Overlord, Redyue, becoming the latter's proxy to save Takatsukasa and the human race. Upon realizing Kota continues to fight due to his hope, Mitsuzane reveals his hatred to him before seemingly killing Takatora and placing Takatsukasa in the Overlord, Roshuo's, care amidst the Overlords' invasion of Zawame City.

When she falls ill due to the Forbidden Fruit inside her, Mitsuzane blames Kota and accepts the Yomotsuheguri Lockseed from Ryoma despite its fatal side effects. Transforming into Kamen Rider Ryugen Yomi (仮面ライダー龍玄・黄泉, Kamen Raidā Ryūgen Yomi), Mitsuzane attempts to kill Kota, but the latter feigns defeat to save him from the Lockseed as Kota still considers him a friend. Mitsuzane also learns that Sengoku used him to extract the Forbidden Fruit from Takatsukasa, seemingly killing her in the process, before destroying Taktatora's Genesis Driver. Going into hiding, a depressed Mitsuzane accepts his role in Takatsukasa's apparent death before finding Takatora's comatose body, which the elder Kureshima recovers from three months later.

Seven months after the Forbidden Fruit evolved Kota and Takatsukasa and they took the Inves from Earth, Mitsuzane and Takatora take on new lives, though the former continues to refuse his friends' offers to join their unified Beat Rider group. After Kogane attacks Zawame, Mitsuzane joins his friends in fending him off before Kota returns to aid them in defeating him and reconcile with Mitsuzane, who rejoins his Beat Rider friends and goes on to live a peaceful life.

During the events of the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, Mitsuzane and his friends discover Takatsukasa was captured by the alien Megahex, who intends to assimilate Earth using the Forbidden Fruit's power and killed Kota. To combat the enemy, Mitsuzane retrieves a Sengoku Driver so Takatora can become Zangetsu again and aid them further. After saving Mai and tricking Megahex into reviving Kota, the latter and the Kureshimas join forces to fight off the alien until they encounter the android Cyberoid ZZZ, who Megahex absorbs to become ZZZ Megahex. Using his increased power, he creates artificial Inves and Roidmudes to stop the Riders. However, the Armored Riders receive assistance from Kamen Riders Drive and Baron, Mashin Chaser, and the Roidmudes Heart and Brain in destroying ZZZ Megahex.

During the events of the V-Cinema Gaim Gaiden: Kamen Rider Knuckle, Mitsuzane graduates from high school and plans to assist his brother at work. However, the Kureshimas discover members of the Yggdrasil Corporation are producing and selling mass-produced Sengoku Drivers on the black market. In the Kamen Rider Gaim tie-in novel, Mitsuzane and the Beat Riders investigate the Black Linden cult in Zawame City. After the regrouped Armored Riders become trapped in Kugai Kudo's illusion prison, Mitsuzane frees himself with Tsukasa Kadoya's help and uses the Dragon Fruits Energy Lockseed to turn the tide of battle against Kudo before his party is saved by Kota at the last minute.

Utilizing a Sengoku Driver and the Budou (ブドウ, Budō, Grape) Lockseed, Mitsuzane can transform into Kamen Rider Ryugen Budou Arms (ブドウアームズ, Budō Āmuzu, Grape Arms), whose signature finisher is the Ryugen Kyaku (龍玄脚, Dragon Mystery Leg). While transformed, he wields the Budou Ryuhou (ブドウ龍砲, Budō Ryūhō, Grape Dragon Cannon) gun, which allows him to perform the Dragon Shot (ドラゴンショット, Doragon Shotto) finisher, and possesses a Rose Attacker Lockseed, which can transform into the titular motorcycle-esque Lock Vehicle. Like the other Armored Riders, Mitsuzane possesses additional Lockseeds that grant unique Arms Changes and Weapons, which are as follows:

• Kiwi Arms (キウイアームズ, Kiui Āmuzu): An auxiliary form accessed from the Kiwi (キウイ, Kiui) Lockseed that grants Ryugen the use of a pair of Kiwi Gekirin (キウイ撃輪, Kiui Gekirin, Kiwi Attack Wheel) wind and fire wheels, which allow him to perform the Spinning Hoop (スピニングフープ, Supiningu Fūpu) finisher.
• W Arms (W（ダブル）アームズ, Daburu Āmuzu): A unique form accessed from the W (ダブル, Daburu) Lockseed that grants Ryugen the use of Kamen Rider W's Trigger Magnum. This form appears exclusively in the film The Fateful Sengoku Movie Battle.
• Pine Arms: An auxiliary form accessed from the Pine Lockseed that grants Ryugen the use of the Pine Iron. This form appears exclusively in the Hyper Battle DVD special Kamen Rider Gaim: Fresh Orange Arms Is Born! ~You Can Also Seize It! The Power of Fresh~.
• Jimber Dragon Fruits Arms (ジンバードラゴンフルーツアームズ, Jinbā Doragon Furūtsu Āmuzu): A stronger form accessed from the Grape Lockseed, Dragon Fruits Energy Lockseed, and a Genesis Core Unit that grants Ryugen the use of the Sonic Arrow. This form appears exclusively in the Kamen Rider Gaim tie-in novel of the same name.

Utilizing the Yomotsuheguri (ヨモツヘグリ) Lockseed, Mitsuzane can transform into Kamen Rider Ryugen Yomi Yomotsuheguri Arms (ヨモツヘグリアームズ, Yomotsuheguri Āmuzu). While transformed, he can summon any of his previous forms' weapons as well as those of the Overlords.

Mitsuzane Kureshima is portrayed by Mahiro Takasugi (高杉 真宙, Takasugi Mahiro). As a child, Mitsuzane is portrayed by Hokuto Matsuda (松田 北斗, Matsuda Hokuto) in the TV series and Wataru Nishioka (西岡 航, Nishioka Wataru) in the stage show Gaim Gaiden: Kamen Rider Zangetsu.

Mai Takatsukasa

Mai Takatsukasa (高司 舞, Takatsukasa Mai) is a member of Team Gaim who originally worked as a shrine maiden at the Takatsukasa Shrine as a child before the Yggdrasil Corporation tore it down as part of their redevelopment plans for Zawame. Having learned to dance in her youth, she believes her transition into a Beat Rider does not affect her ideals as she tries to teach the others how to dance better, becoming an older sister figure to them. She is particularly hard on Kota, though only because she is secretly in love with him. She also finds a kindred spirit in Kaito Kumon, another person whose childhood was ruined by the Yggdrasil Corporation.

Despite being warned by a mysterious, white-haired doppelgänger of herself to leave Zawame, she chooses to stay regardless, though a chain of events eventually leads to her meeting Roshuo, who places humanity's Forbidden Fruit inside her body. As a result, she falls ill and enters a death-like sleep after Ryoma extracts the fruit from her. However, DJ Sagara communicates with Takatsukasa via her subconscious while completing her transformation into the doppelgänger she encountered, aka mankind's "Maiden of Fate" (運命の巫女, Unmei no Miko). Learning she possesses the ability to travel through time, she attempts to warn herself and her friends in the past of their impending fates. However, she is unable to speak directly, instead being forced to speak in cryptic riddles and tell the Armored Riders to fight for their own destinies. Sagara later explains that her actions in the past, including her attempts to avert the future, produced a bootstrap paradox that ensures everything unfolds as it does to place her in her current situation and ensure the final battle between Kota and Kumon always takes place. Once the former wins their fight, she gives him the Forbidden Fruit and assumes her role as the Woman of the Beginning (始まりの女, Hajimari no Onna) before departing with Kota and the Inves to a new planet. Seven months later, she briefly returns to Earth to visit Kumon's spirit and ensure he is at peace before leaving once again.

During the events of the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle, Kamen Rider Bujin Gaim targets the Maiden, but mistakes Takatsukasa for her future self and kidnaps her instead. The Maiden herself appears before the Armored Riders to grant them the power to defeat Bujin Gaim.

Mai Takatsukasa is portrayed by Yuumi Shida (志田 友美, Shida Yūmi). As a child, Takatsukasa is portrayed by Shiori Saeki (佐伯 栞, Saeki Shiori).

Takatora Kureshima

Takatora Kureshima (呉島 貴虎, Kureshima Takatora) is Mitsuzane's older brother and a project leader in the Yggdrasil Corporation's Research and Development branch. A realist who is willing to commit morally dubious acts for the greater good of humanity, he has a bad habit of trusting the dishonest and dearly loves his younger brother, desiring for him to do well in school so he can join the family business one day. Years prior to the series, Takatora proved instrumental in testing early prototypes for the Sengoku Driver. Despite experiencing setbacks that left him physically scarred, he eventually gained the means to become the samurai-themed Kamen Rider Zangetsu (仮面ライダー斬月, Kamen Raidā Zangetsu) to combat the Helheim Forest's Inves.

Throughout his efforts to stop Helheim, Takatora oversees Project Ark, which involves sacrificing most of humanity to save the remaining population. After developing the Genesis Drivers and becoming Kamen Rider Zangetsu Shin (仮面ライダー斬月・真, Kamen Raidā Zangetsu Shin), he deems the Armored Riders have outlived their purpose and moves to eliminate them. However, Takatora learns Mitsuzane became an Armored Rider behind his back and shows his brother the ruins of a civilization that Helheim used to be to sway him to his side and help him save the world. Takatora also shows Mitsuzane's friend Kota Kazuraba the ruins in an attempt to crush his spirit, seeing similar ideals that Takatora embodied as a youth. However, Kota only becomes more determined to fight back against Yggdrasil and Helheim.

Following an encounter with the Overlord, Dēmushu, Takatora finds an alternative method for saving the Earth without having to sacrifice human lives and allies himself with Kota to achieve this. However, he is betrayed by his friend and Yggdrasil scientist Ryoma Sengoku, who was secretly aided by Mitsuzane, and left for dead without his Rider equipment in Helheim. Takatora is found and nursed back to health by the Overlord Roshuo, who gives him a Sengoku Driver so he can safely feed on the Helheim plants. While recovering, Takatora learns more about the Overlords and realizes Sengoku is after the Forbidden Fruit. Upon returning to his world, he follows the Armored Riders during their raid on Yggdrasil and discovers Mitsuzane had also betrayed him. Takatora obtains his original Rider equipment and transforms into Zangetsu to battle his brother as Zangetsu Shin, but hesitates, allowing Mitsuzane to counterattack, destroying his brother's Rider equipment and causing Takatora to fall into a nearby river to his apparent death. Following Kota's departure from Earth months later, Takatora's comatose body was found and taken to the hospital. While in a coma for three months, he dreams of Kota forgiving him for his past actions and asking him to help Mitsuzane. A further four months later, having since come out of his coma, Takatora lives out a new life.

During the events of the V-Cinema, Gaim Gaiden: Kamen Rider Zangetsu, which takes place after he showed Kota the Helheim ruins, Takatora finds himself questioning his resolve in seeing Project Ark through. However, he is forced to investigate a mysterious Armored Rider who has been attacking his company's employees and Mitsuzane around the same time his childhood friend Tōka Akatsuki returns to his life and his father Amagi Kureshima died, supposedly of illness. Soon realizing that all three events are connected, he finds an abandoned childcare center his father built and is horrified to discover that Amagi had been using orphans, including Akatsuki, as guinea pigs for Yggdrasil. Furthermore, she had become the mysterious Rider to pursue revenge and kill Amagi, as well as everyone involved in her torture. Takatora begs her to stop, but is eventually forced to fight her, though he ultimately spares her in light of their friendship. This would go on to contribute to Takatora siding with Kota and sharing his ideals of saving the world without sacrificing anyone.

During the events of the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, which takes place after the series, Takatora joins the Zawame Restoration Bureau's leadership. When the alien Megahex invades Earth, Takatora obtains a new Sengoku and Genesis Driver so he can join the Armored Riders in their efforts to repel the alien as Zangetsu and Zangetsu Shin.

During the events of the V-Cinema, Gaim Gaiden: Kamen Rider Knuckle and the Kamen Rider Gaim tie-in sequel novel of the same name, both of which take place after the series, Takatora and Mitsuzane discover Yggdrasil's remnants operating in black market crimes and join forces to stop them. Takatora later enlists Oren Pierre Alfonzo's help in investigating Yggdrasil's remnants and Black Linden cells in foreign nations before the two return to Japan and regroup with the rest of the Armored Riders in their final fight against Kugai Kudo.

Utilizing a Sengoku Driver and the Melon (メロン, Meron) Lockseed, Takatora can transform into Kamen Rider Zangetsu Melon Arms (メロンアームズ, Meron Āmuzu). While transformed, he wields the Melon Defender (メロンディフェンダー, Meron Difendā) shield, which allows him to perform the Melou Blast (メロウブラスト, Merou Burasuto) finisher, as well as a Musou Saber like Kamen Rider Gaim. Like the other Armored Riders, Takatora also possesses additional Lockseeds that grant unique Arms Changes and Weapons, which are as follows:

• Fourze Arms (フォーゼアームズ, Fōze Āmuzu): A unique form accessed from the Fourze (フォーゼ, Fōze) Lockseed that grants Zangetsu the use of the Kamen Rider Fourze's Rocket Module. This form appears exclusively in the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle.
• Mango Arms: An auxiliary form accessed from the Mango Lockseed that grants Zangetsu the use of the Mango Punisher. This form appears exclusively in the Hyper Battle DVD special Kamen Rider Gaim: Fresh Orange Arms is Born! ~You Can Also Seize It! The Power of Fresh~.
• Watermelon Arms (ウォーターメロンアームズ, Wōtāmeron Āmuzu): A unique form accessed from the Watermelon (ウォーターメロン, Uōtāmeron) Lockseed, a prototype of the Suika Lockseed, that grants Zangetsu the use of the Watermelon Gatling (ウォーターメロンガトリング, Wōtāmeron Gatoringu) shield. This form appears exclusively in Gaim Gaiden: Kamen Rider Zangetsu.
• Kachidoki Arms: A stronger form accessed from the Shin Kachidoki (シン・カチドキ, True Triumph) Lockseed that grants Zangetsu increased armor and the use of a white-colored version of the Hinawadaidai-DJ-Ju called the Hinawatenga-DJ-Ju (火縄甜瓜DJ銃, Hinawatenga-Dī Jei-Jū, Matchlock Sweet Melon-DJ-Gun) and a pair of Kachidoki Bata, the latter of which allows him to perform the Muskmelon Raging Wave (甜瓜烈波, Tenga Reppa) finisher. He can also combine the Hinawatenga-DJ-Ju and Musou Saber to access the former's Taiken Mode. This form appears in the stage play sequel Kamen Rider Zangetsu: Gaim Gaiden and the web-exclusive special Gaim Gaiden: Kamen Rider Gridon vs. Kamen Rider Bravo.
• Suika Arms: A mecha-like form accessed from the Suika Lockseed. This form appears exclusively in the Kamen Rider Gaim tie-in novel of the same name.

Utilizing a Genesis Driver and the Melon Energy (メロンエナジー, Meron Enajī) Lockseed, Takatora can transform into Kamen Rider Zangetsu Shin Melon Energy Arms (メロンエナジーアームズ, Meron Enajī Āmuzu). In the tie-in novel Kamen Rider Gaim, he replaces his Sengoku Driver's Rider Indicator with his Genesis Core Unit to mix the powers of his Melon and Melon Energy Lockseeds so he can transform into Kamen Rider Zangetsu Jimber Melon Arms (ジンバーメロンアームズ, Jinbā Meron Āmuzu).

Takatora Kureshima is portrayed by Yuki Kubota (久保田 悠来, Kubota Yūki). As a teenager, Takatora is portrayed by Akito Ueda (上田 晟人, Ueda Akito) in the TV series and Ryūto (竜跳) in Gaim Gaiden: Kamen Rider Zangetsu.

Recurring characters

Team Baron

Team Baron (チームバロン, Chīmu Baron) is a rival dance team to Team Gaim, dressed in long black and red coats. While their leader Kaito Kumon is firmly against cheating, some of his fellow group members are prone to secretly doing so during Inves Games to increase their ranks until Kaito learns of what they have done.

Zack

Zack (ザック, Zakku) is a member of Team Baron who originally serves as Kaito Kumon's second-in-command and interim leader in his absence. Formerly a member of Team Severe Beat sometime prior to the series, they were defeated by Team Baron and Zack chose to defect, going on to develop a firm loyalty to him. After stealing a mass-produced Sengoku Driver while in the Yggdrasil Corporation's custody, Kumon entrusts it and leadership of Team Baron to Zack, who goes on to become the squire/boxer-themed Kamen Rider Knuckle (仮面ライダーナックル, Kamen Raidā Nakkuru).

Amidst Dēmushu's invasion, Zack intended to sacrifice himself to save Zawame until Kota defeats the Overlord. After Kumon transforms into an Overlord himself, Zack seemingly remains by his side while secretly working to save his former leader from himself. Receiving a bomb from Oren Pierre Alfonso, Zack attempts to use it to kill Kumon, but the latter's ally Yoko Minato sacrifices herself to take the blast in his place. In response, Kumon fights Zack and eventually defeats him, destroying his Rider equipment and severely injuring him in the process. Three months later, a recovering Zack supports his Beat Rider friends as they form a unified group.

During the events of the V-Cinema, Gaim Gaiden: Kamen Rider Knuckle, Zack transfers leadership duties to his teammate Peko so he can travel to New York and participate in an international dance contest. However, Peko's sister Azami calls and tells him that former Team Baron member Shura has returned to seek revenge. Zack returns to Zawame, sacrificing his chance to be in the competition in the process, and receives new Rider equipment from Peko and Mitsuzane Kureshima so he can defeat Shura. In the Kamen Rider Gaim tie-in novel, Zack assists Mitsuzane in investigating the Black Linden cult in Zawame and joins the rest of the Armored Riders in their final fight against Kugai Kudo.

Utilizing a Sengoku Driver and the Kurumi (クルミ, Walnut) Lockseed, Zack can transform into Kamen Rider Knuckle Kurumi Arms (クルミアームズ, Kurumi Āmuzu, Walnut Arms). While transformed, he is equipped with a pair of Kurumi Bomber (クルミボンバー, Kurumi Bonbā, Walnut Bomber) gauntlets. Like the other Armored Riders, Zack also possesses additional Lockseeds that grant unique Arms Changes and Weapons, which are as follows:

• Suika Arms: A mecha-like form accessed from the Suika Lockseed that equips Zack with a pair of boxing glove-like constructs.
• Jimber Marron Arms (ジンバーマロンアームズ, Jinbā Maron Āmuzu): A stronger form accessed from the Kurumi Lockseed, Marron Energy (マロンエナジー, Maron Enajī) Lockseed and a Genesis Core Unit that equips Zack with a pair of Marron Bomber (マロンボンバー, Maron Bonbā) gauntlets. This form appears exclusively in Gaim Gaiden: Kamen Rider Knuckle.

Zack is portrayed by Gaku Matsuda (松田 岳, Matsuda Gaku).

Peko

Peko (ペコ) is a member of Team Baron who is loyal to Kaito Kumon yet willing to engage in underhanded tactics to aid his team. After Kumon leaves Team Baron and Zack takes over leadership as Kamen Rider Knuckle, Zack provides combat support to the latter. Amidst the Inves' invasion, Zack attempts to stop Mitsuzane Kureshima from kidnapping Mai Takatsukasa, but is nearly killed by an Overlord, forcing Takatsukasa to leave with Mitsuzane. When Kumon becomes an Overlord himself, Zack tasks Peko with making contact with Oren Pierre Alfonso to help defeat Kumon before Peko helps evacuate Zawame under the direction of the Japan Self-Defense Forces. Three months after the Inves are taken from Earth, Peko joins his fellow Beat Riders in forming a unified group.

During the events of the film Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!, an alternate universe version of Peko obtains a Genesis Driver and the Matsubokkuri Energy (マツボックリエナジー, Matsubokkuri Enajī, Pinecone Energy) Lockseed, both of which he uses to transform into Kamen Rider Kurokage Shin (仮面ライダー黒影・真, Kamen Raidā Kurokage Shin) Matsubokkuri Energy Arms (マツボックリエナジーアームズ, Matsubokkuri Enajī Āmuzu, Pinecone Energy Arms). While transformed, he wields the Kagematsu Shin (影松・真, True Shadow Pine) spear.

Peko is portrayed by Saku Momose (百瀬 朔, Momose Saku).

Ryoji Hase

Ryoji Hase (初瀬 亮二, Hase Ryōji) is the leader of Team Raid Wild (チームレイドワイルド, Chīmu Reido Wairudo), whose members all dress in black and yellow. He initially refuses to join Team Baron's alliance until he is defeated by the group's leader Kaito Kumon's summoned Inves and Kota Kazuraba as Armored Rider Gaim, both of which convince Hase to do so. However, he later changes his mind, forms a separate alliance with Team Invitto's leader Hideyasu Jonouchi, and acquires a Sengoku Driver so he can transform into the ashigaru-themed Kamen Rider Kurokage (仮面ライダー黒影, Kamen Raidā Kurokage).

While aiding Mitsuzane Kureshima in an attempt to draw out Kamen Rider Zangetsu, Hase loses his Sengoku Driver to the latter, the remains and data of which the Yggdrasil Corporation use to make mass-produced versions and allow their privately owned soldiers to become Kurokage Troopers. Powerless, Hase's alliance with Jonouchi dissolves and Raid Wild abandons him following a loss to Team Baron. Furthermore, Hase also starts suffering hallucinations of being attacked by Inves and Zangetsu, which leads him to equate the Helheim Forest's fruits with power and eat one. Mutating into the Bixie Inves (ヘキジャインベス, Hekija Inbesu), he overpowers the Armored Riders until he is killed by Kamen Rider Sigurd despite Kota's attempts to save Hase.

During the events of the web-exclusive special, Gaim Gaiden: Kamen Rider Gridon vs. Kamen Rider Bravo, Hase's spirit appears before Jonouchi and stops him from eating a Helheim fruit, which the former transforms into the Lychee Lockseed so Jonouchi can use that instead.

Utilizing a Sengoku Driver and the Matsubokkuri (マツボックリ, Pinecone) Lockseed, Hase can transform into Kamen Rider Kurokage Matsubokkuri Arms (マツボックリアームズ, Matsubokkuri Āmuzu, Pinecone Arms). While transformed, he wields the Kagematsu (影松, Shadow Pine) yari, which allows him to perform the Kage Nui Tsuki (影縫い突き, Shadow Sewing Stab) finisher, and possesses a Sakura Hurricane Lockseed, which can transform into the titular motorcycle-esque Lock Vehicle.

Ryoji Hase is portrayed by Atsushi Shiramata (白又 敦, Shiramata Atsushi).

Hideyasu Jonouchi

Hideyasu Jonouchi (城乃内 秀保, Jōnouchi Hideyasu) is the cowardly leader and sole male member of Team Invitto (チームインヴィット, Chīmu Invitto), whose other members consist of girls. He initially joins Team Baron's alliance until he learns its leader Kaito Kumon only formed it to use the other members as pawns. In response, Jonouchi joins forces with Ryoji Hase of Team Raid Wild and obtains the means to transform into the Greek soldier-themed Kamen Rider Gridon (仮面ライダーグリドン, Kamen Raidā Guridon), but quickly becomes known as the weakest of the Armored Riders due to his lack of combat prowess and saddled with what he considers the worst name out of all them as it is simply an anagram of the Japanese word for "acorn".

Following a failed attempt to defeat Kamen Rider Zangetsu and Raid Wild's disbandment, Jonouchi cuts ties with Ryoji and goes to Oren Pierre Alfonso in the hopes of forming a new alliance. While he is forcibly employed as an assistant pâtissier instead, Jonouchi considers it a mixed blessing as he no longer has to fight the other Armored Riders. Amidst the Inves' invasion, he finds his fighting spirit while protecting Alfonso from one such monster and joins his fellow Armored Riders in fending off the invaders, having received combat training during his time with Alfonso. Despite losing his Rider equipment to Kaito and Yoko Minato near the end of the invasion, Jonouchi joins the Japan Self-Defense Forces' efforts to evacuate Zawame.

Three months after the Inves are taken from Earth, Jonouchi continues to work for Alfonso. Having also learned of Hase's death, he briefly feels guilty for what happened until Alfonso assures him there was nothing he could have done and all he can do now is move on. A further four months later, Armored Rider Jam attacks Zawame. Jonouchi responds by using a mass-produced Sengoku Driver and fighting the enemy as a Kurokage Trooper in Hase's memory. In the Kamen Rider Gaim tie-in novel, Jonouchi is given a new Sengoku Driver that restores his powers as Kamen Rider Gridon, allowing him to escape Kugai Kudo's brainwashing of Zawame City's population at the last minute and join the Armored Riders in their battle against Kudo.

As of the web-exclusive special, Gaim Gaiden: Kamen Rider Gridon vs. Kamen Rider Bravo, Jonouchi took over ownership of Oren's pastry shop, Charmant, and became a full-fledged pâtissier. Upon learning his secretary Masako Suzuka was secretly manipulating him into turning their customers into Inves, he receives help from Takatora Kureshima to regain his Rider powers and foil her plans. As of Kamen Rider Revice: The Mystery, Jonouchi continues to defend Zawame City while assisting Alfonso in his mercenary activities.

Utilizing a Sengoku Driver and the Donguri (ドングリ, Acorn) Lockseed, Jonouchi can transform into Kamen Rider Gridon Donguri Arms (ドングリアームズ, Donguri Āmuzu, Acorn Arms). While transformed, he wields the Donkachi (ドンカチ) war hammer, which allows him to perform the Donkachi Giant Rotation (ドンカチ大回転, Donkachi Dai Kaiten) and Gridon Impact (グリドンインパクト, Guridon Inpakuto) finishers, and possesses a Rose Attacker Lockseed, which can transform into the titular motorcycle-esque Lock Vehicle.

During the events of Gaim Gaiden: Kamen Rider Gridon vs. Kamen Rider Bravo, he receives a new Sengoku Driver from Takatora and a Lychee (ライチ, Raichi) Lockseed from Hase's spirit, both of which he uses to transform into Kamen Rider Gridon Lychee Arms (ライチアームズ, Raichi Āmuzu). In this form, Jonouchi wields an upgraded version of the Donkachi called the Shine Donkachi (シャインドンカチ, Shain Donkachi) and the Shine Lychee Sword (シャインライチソード, Shain Raichi Sōdo).

Hideyasu Jonouchi is portrayed by Ryo Matsuda (松田 凌, Matsuda Ryō).

Yggdrasill Corporation

The Yggdrasil Corporation Company Ltd. (ユグドラシルコーポレーション, Yugudorashiru Kōporēshon) is a powerful multinational conglomerate and research organization largely dedicated to stopping the Helheim Forest from overrunning the Earth. After detecting a high frequency of Crack portals in Zawame City, the company established the Yggdrasil Tower around the city's "sacred tree" for research purposes, disguising their true agenda by using their expertise in several fields and socioeconomic aspects of city-dwelling to redevelop Zawame to prevent widespread panic amongst the populace. Due to their omnipresence however, many of Zawame's citizens feel as if they are living in a "jōkamachi (城下町, castle town)" rather than a bustling city. Yggdrasil also establishes the Inves Games and the Armored Riders to further their research and draw attention away from it as well as create weapons to repel Helheim's inhabitants.

While the company finds a way to stop the Helheim Forest's flora over the course of the series, they only succeed in delaying a global extinction event by 10 years. Complicating matters, scientist Ryoma Sengoku exposes the company's secrets as part of his own plans, resulting in many of Yggdrasil's employees resigning en masse, the company itself being labeled a terrorist organization, and eventually becoming defunct.

Three months after Helheim is taken from Earth near the series finale, the Yggdrasil Tower has long since been torn down, with its absence giving way to new life for Zawame while the company is repurposed into the Zawame Restoration Bureau (沢芽市復興局, Zawame-shi Fukkōkyoku), which is dedicated to undoing Yggdrasil's effects on Zawame City. Despite this, several rogue members of Yggdrasil became involved in the black market and eventually join forces with Kugai Kudo's Black Linden cult during the events of the Kamen Rider Gaim tie-in novel.

After acquiring sufficient data on the Armored Riders, several high-ranking Yggdrasil members receive the Genesis Driver (ゲネシスドライバー, Geneshisu Doraibā) belt, which utilizes Energy Lockseeds (エナジーロックシード, Enajī Rokkushīdo) to transform them into Genesis Armored Riders (新世代アーマードライダー, Shin Sedai Āmādo Raidā), who wield bladed bows called Sonic Arrows (ソニックアロー, Sonikku Arō), which allows them to perform the Sonic Volley (ソニックボレー, Sonikku Borē) finisher.

Sid

Lock Dealer Sid (錠前ディーラー シド, Jōmae Dīrā Shido) is one of Takatora Kureshima's subordinates who aids him by selling Lockseeds and Sengoku Drivers to the Beat Riders for the Inves Games. While he works for Yggdrasil, Sid's intentions are dubious at best as he is willing to aid various parties and withhold information on Mitsuzane Kureshima from Takatora. Prior to the series, Sid was part of a group of drug dealers who were suddenly attacked by Inves while they were in Zawame City. He survived the attack after being saved by Ryoma Sengoku and recruited into Yggdrasil.

Once the Genesis Drivers are developed and the Beat Riders serve their purpose, Sid is given the means to transform into the Viking-themed Kamen Rider Sigurd (仮面ライダーシグルド, Kamen Raidā Shigurudo) so he can eliminate them before they threaten Yggdrasil's plans. After being defeated by Kamen Rider Gaim however, Sid helps Sengoku betray Takatora before betraying Sengoku and Yggdrasil in turn so he can enter the Helheim Forest and get the Forbidden Fruit for himself. Eventually, Sid encounters the Overlord Roshuo and attempts to fight the latter, but finds himself outmatched. Sid is offered the chance to escape with his life, but refuses and is killed soon afterward.

Utilizing a Genesis Driver and the Cherry Energy (チェリーエナジー, Cherī Enajī) Lockseed, Sid can transform into Kamen Rider Sigurd Cherry Energy Arms (チェリーエナジーアームズ, Cherī Enajī Āmuzu). Additionally, he possesses a special "Sid" (シド, Shido) Lockseed that allows him to remotely operate Suika Arms mecha via Suika Lockseeds.

Sid is portrayed by Kazuki Namioka (波岡 一喜, Namioka Kazuki).

Ryoma Sengoku

Ryoma Sengoku (戦極 凌馬, Sengoku Ryōma) is a brilliant scientist in the Yggdrasil Corporation's research division who conducts experiments to develop the Armored Riders' Drivers as part of Project Ark, a plan established by Yggdrasil to save one-seventh of the human population by providing them the means to obtain nutrients from Helheim Forest fruits without mutating into Inves. He was originally an orphan until he was taken in by Yggdrasil's owner, Amagi Kureshima, who recognized the boy's talents and potential for furthering Yggdrasil's goals. Over the years, Sengoku would go on to become Amagi's right hand, develop Lockseeds, and become acquainted with Amagi's eldest son, Takatora Kureshima. Despite this, Sengoku grew to see the latter as a fool for trying to save humanity first and lacking his father's ambition, leading to Ryoma secretly acting on his own agenda by obtaining the Forbidden Fruit and acquiring its power rather than save the world from the Inves. Following the events of the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle, Sengoku presents the completed Genesis Drivers to Takatora and other select Yggdrasil members while keeping one for himself so he can become the European knight-themed Kamen Rider Duke (仮面ライダーデューク, Kamen Raidā Dyūku).

While Takatora believes the Armored Riders have outlived their usefulness, Sengoku uses Kota Kazuraba and Kaito Kumon to elevate his research and recruits Takatora's younger brother Mitsuzane Kureshima to help him observe Kota's use of his Jimber Arms abilities. Eventually, Sengoku recruits Kumon to help him hunt the Overlords. When Kota attains a new power that did not come from his technology and Takatora discovers he withheld information on the Overlords from him, Sengoku openly betrays the latter and leaves him for dead in the Helheim Forest. After being betrayed in turn by former ally Sid, Sengoku abandons Yggdrasil while the Overlords storm the company and invade Zawame City, though not before leaking Project Ark to the public to stop Yggdrasil from interfering in his plans.

Months later, as the Armored Riders begin repelling the Overlords, Sengoku returns to seemingly help Kota retake Yggdrasil while secretly observing the youth's transformation into an Overlord and working to steal the Forbidden Fruit, which had been placed in Mai Takatsukasa's body. To do so, he manipulates Mitsuzane to distract Kota with the Yomotsuheguri Lockseed while he extracts the Forbidden Fruit from Takatsukasa, killing her as it was tied to her heart. He also disables all of the Genesis Drivers except for his to stop the Genesis Armored Riders from attacking him, only to be attacked by Kumon, who had also transformed into an Overlord. Infuriated that a human could evolve in such a manner without one of his devices, Sengoku fights back, but ends up tripping over a guard rail and falling to his death.

During the events of the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, which takes place after the series, the alien Megahex uses Kota's memories to build a replica of Sengoku called Mecha Ryoma Sengoku (メカ戦極 凌馬, Meka Sengoku Ryōma) to serve as his enforcer. Despite being an extension of the alien, "Sengoku" retains his sense of self and relishes his superiority over the Armored Riders until he is defeated by Takatora.

During the events of the V-Cinemas, Gaim Gaiden: Kamen Rider Zangetsu and Gaim Gaiden: Kamen Rider Baron, both of which take place after Sengoku recruited Kumon to his cause, the former murders Tōka Akatsuki so he can use her Ringo Lockseed to reverse-engineer the Dragonfruit Energy Lockseed, which he gives to Alfred to test before Mecha Sengoku acquires it.

During the events of the V-Cinema Gaim Gaiden: Kamen Rider Duke, which takes place before The Fateful Sengoku Movie Battle, Sengoku continues to research the Sengoku and Genesis Drivers, though he starts feeling guilty for the apparent death of his colleague, Kugai Kudo, as of late. After being haunted by Kudo's ghost, who became an Armored Rider to seek revenge, and attacked by the cult, Black Linden, Sengoku joins forces with Takatora to defeat the spirit before using Kudo's Rider weaponry to develop the Sonic Arrows. Upon realizing Kudo's ghostly form effectively makes him immortal, Sengoku locates him and uses his newly developed Genesis Armored Rider technology to seemingly destroy him and test the devices. However, prior to and during the Kamen Rider Gaim tie-in novel, Sengoku realizes that Kudo is still at large and archives a video recording with available information pertaining to Kudo prior to his death, with the Kureshima brothers using the information in their fight against Kudo.

Utilizing a Genesis Driver and the Lemon Energy (レモンエナジー, Remon Enajī) Lockseed, Sengoku can transform into Kamen Rider Duke Lemon Energy Arms (レモンエナジーアームズ, Remon Enajī Āmuzu). Across supplementary Kamen Rider Gaim-related media, he has also assumed other forms, which are as follows:

• Dragon Energy Arms (ドラゴンエナジーアームズ, Doragon Enajī Āmuzu): Mecha Sengoku's primary form accessed from the Dragon Fruits Energy (ドラゴンフルーツエナジー, Dorangon Furūtsu Enajī) Lockseed and the Genesis Driver. This form appears exclusively in Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle.
• Lemon Arms (レモンアームズ, Remon Āmuzu): The prototypical version of Sengoku's Genesis Armored Rider form accessed from the Lemon (レモン, Remon) Lockseed and a Sengoku Driver that grants him the use of the Lemon Rapier (レモンレイピア, Remon Reipia). This form appears exclusively in Gaim Gaiden: Kamen Rider Duke.

Ryoma Sengoku is portrayed by Tsunenori Aoki (青木 玄徳, Aoki Tsunenori).

Yoko Minato

Yoko Minato (湊 耀子, Minato Yōko) is a former FBI agent and bodyguard for Ryoma Sengoku, whom he gives a Genesis Driver to so she can transform into the Arabian soldier-themed Kamen Rider Marika (仮面ライダーマリカ, Kamen Raidā Marika) following the events of the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle. Despite being a member of Yggdrasil and taking orders from Takatora Kureshima, her loyalties initially lie with Sengoku.

Amidst her battles with the Armored Riders, Minato develops an interest in Kaito Kumon and convinces Sengoku to make him a Genesis Armored Rider. After being abandoned by Sengoku amidst the Overlords' invasion, she defects to Kumon and the Armored Riders' side. When Kumon transforms into the Overlord-like Lord Baron, she accompanies him as he kills Sengoku and works to obtain the Forbidden Fruit. He is nearly killed by his former ally Zack, but Minato sacrifices herself for Kaito and "confesses" her "love" for him before dying.

During the events of the web-exclusive miniseries Kamen Sentai Gorider, Kuroto Dan arranges the resurrection of Minato, among other deceased Riders, as part of a plot to kill Emu Hojo. However, Kazuma Kenzaki arrives to help Emu and the revived Riders stop Kuroto. During the fight, Minato transforms into the pink-colored Momorider (モモライダー, Momoraidā) before joining the fallen Riders in sacrificing themselves to defeat Kuroto and ensure Emu and Kenzaki's survival.

Utilizing a Genesis Driver and the Peach Energy (ピーチエナジー, Pīchi Enajī) Lockseed, Minato can transform into Kamen Rider Marika Peach Energy Arms (ピーチエナジーアームズ, Pīchi Enajī Āmuzu).

Yoko Minato is portrayed by Minami Tsukui (佃井 皆美, Tsukui Minami).

Kurokage Troopers

The Kurokage Troopers (黒影トルーパー, Kurokage Torūpā) are the Yggdrasil Corporation's privately owned soldiers who function as support for their employers and are normally dispatched into Zawame City's streets to destroy any evidence related to the Helheim Forest. They all utilize mass-produced versions of the Sengoku Driver, the plentiful Matsubokkuri Lockseeds similarly to their template, Kamen Rider Kurokage, and the walker-esque Tulip Hopper (チューリップホッパー, Chūrippu Hoppā) Lock Vehicles, which are accessed from the corresponding Lockseed.

Following the Overlords' invasion of Zawame City, the Kurokage Troopers are disbanded and their equipment ends up being used by mechanical copies created by Megahex in the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, members of Shura's Team Neo Baron in the V-Cinema Gaim Gaiden: Kamen Rider Knuckle, and the Russian underworld following a black market deal with Yggdrasil's remnants and the Black Linden cult in the Kamen Rider Gaim tie-in novel.

Drupers

Drupers (ドルーパーズ, Dorūpāzu) is a "fruit parlor" (フルーツパーラー, furūtsu pārā) known for selling fruit parfaits and being Zawame City's most popular location amongst youths, especially the Beat Rider dance teams. Amidst the Inves' invasion, Drupers remains open and serves as a secondary base for the Armored Riders until the Japanese Self-Defense Forces arrive and close down the store to evacuate Zawame. As of the film Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, Drupers has long since re-opened and entered a partnership with the pastry shop, Charmant.

Kiyojiro Bando

Kiyojiro Bando (阪東 清治郎, Bandō Kiyojirō) is the owner of Drupers who offers advice to his customers and cheers them up with a parfait.

Kiyojiro Bando is portrayed by Tomohisa Yuge (弓削 智久, Yuge Tomohisa).

Iyo

Iyo (イヨ) is Bando's only staff member and waitress capable of holding her own in combat, having trained in the use of a bō and nunchaku.

Iyo is portrayed by Yui Natsuki (那月 結衣, Natsuki Yui).

"DJ Sagara"

"DJ Sagara" (DJサガラ, Dī Jei Sagara) is the immortal embodiment of the Helheim Forest's will whose task is to observe and hasten evolution and see the future unfold in terms of who can obtain the Helheim Forest's power, the Golden Fruit, believing that one must shine to be remembered by others. He initially appears as a supporter of the Yggdrasil Corporation, operating as the DJ of a pirate radio station and host of the Beat Riders Hotline internet show to promote the Inves Games, and setting up much of Zawame City's Beat Riders (ビートライダーズ, Bīto Raidāzu) and Armored Riders (アーマードライダー, Āmādo Raidā).

After Yggdrasil creates the Genesis Armored Riders and deems the Armored Riders useless to their agenda, Sagara begins to show an interest in Kota Kazuraba and secretly helps him fight back against the company. As the series progresses, Sagara slowly reveals his true nature and agenda to certain individuals. After Kota and Mai Takatsukasa are transformed by the Golden Fruit's power and take the Inves and Helheim Forest to another planet, a surprised Sagara accepts Kota's wish and departs for another world to repeat the cycle. In the Kamen Rider Gaim tie-in novel, DJ Sagara is revealed to have provided Kugai Kudo with the Zakuro Lockseed, leading into the events of Gaim Gaiden: Kamen Rider Duke and its succeeding stories.

DJ Sagara is portrayed by Tomomitsu Yamaguchi (山口 智充, Yamaguchi Tomomitsu).

Inves

The Inves (インベス, Inbesu), the name of which was derived from the term "invasive species", are monsters who hail from the alternate reality of the Helheim Forest (ヘルヘイムの森, Heruheimu no Mori). They were originally part of the Femushinmu race before the forest consumed their civilization and the inhabitants ate Helheim fruit, which mutated them into monsters. The Inves were originally believed to be products of the popular Inves Games (インベスゲーム, Inbesu Gēmu), created by the Yggdrasil Corporation, that can be summoned to Zawame City via Lockseeds, which open zipper-like portals called "Cracks" (クラック, Kurakku).

Each Inves serves as part of the Helheim Forest's seed dispersal system, transferring Helheim seeds to Zawame, where they rapidly grow and convert the ecosystem by contaminating the soil they grow in and displacing all forms of native plant life. The seeds can also germinate within the bodies of humans who are physically attacked by an Inves. The most famous among Helheim plants is one that served as the basis of the Forbidden Fruit (禁断の果実, Kindan no Kajitsu) or Golden Fruit (黄金の果実, Ōgon no Kajitsu) mentioned in various myths, such as the golden apples of Norse mythology and ambrosia of Greek mythology. The Forbidden Fruit is created once a world has been fully consumed by the Helheim Forest and awarded to an individual that Helheim deems worthy enough to evolve and change the world via a "Maiden of Fate". Due to its incredible power, numerous parties attempt to seek out the fruit for themselves.

Most Inves are of the pupa-like Elementary Inves (初級インベス, Shokyū Inbesu) variety, though they can eat ripened Lockseeds and molt into various animal-themed Evolved Forms (進化体, shinkatai). Both types can be summoned by Lockseeds in Inves Games and initially exist within a holographic field. However, if the Lockseed used to summon them is dropped or damaged, the corresponding Inves will enter a Berserker State (凶暴態, Kyōbōtai) and fully manifest in the human world. In this stage, the only means of defeating it are to close the Lockseed's lock or send it through a Crack, either of which must be done before the Inves can consume the Lockseed used to summon it and evolve further into a Stronger Form (強化体, kyōkatai) or a Super Evolved Form (超進化体, Chō Shinkatai).

Inves can also be created by humans who eat Helheim fruits, with this type being labeled by Yggdrasil as Category H (カテゴリーH, Kategorī Eichi) Inves and considered nothing more than reanimated corpses controlled by the forest's instinct. Unlike regular Inves, the Category H variant lacks the Helheim pathogen. Yggdrasil later discovers the Inves are controlled by the stronger Overlord Inves.

• White Tiger Inves: A Category H Inves. See here.
• Deer Inves (シカインベス, Shika Inbesu): A sub-species of Evolved Inves. Kota Kazuraba summons one via an Ichigo Lockseed during an Inves Game before it fully manifests and wreaks havoc on Zawame. After consuming the Ichigo Lockseed, it evolves into a Super Evolved Form and gains pyrokinesis. Following this, the Deer Inves is destroyed by Kazuraba as Kamen Rider Gaim. Kazuraba later summons another Deer Inves within the Helheim Forest before destroying it as well.
• Bat Inves (コウモリインベス, Kōmori Inbesu): A sub-species of Evolved Inves. Hideyasu Jonouchi summons one during an Inves Game before it is destroyed by Kamen Rider Ryugen. After eating a Helheim fruit, a maintenance worker transforms into a mutated (変種体, henshutai) Category H variant of the Bat Inves and goes on a rampage until he is destroyed by Kamen Riders Gaim and Ryugen.
• Boar Inves (イノシシインベス, Inoshishi Inbesu): A Super Evolved Inves with armor capable of deflecting most attacks put against it that resulted from an Elementary Inves eating several ripened Lockseeds at once. It is eventually destroyed by Kamen Rider Gaim.
• Azure Dragon Inves (セイリュウインベス, Seiryū Inbesu): A powerful sub-species of Evolved Inves with armored bodies capable of withstanding blade attacks. Kamen Riders Gaim and Baron encounter one such Inves before destroying it. A second Azure Dragon Inves later appears in the human world and eats a raw Helheim Fruit, changing into a large serpentine Super Evolved Form before it is destroyed by Kamen Rider Zangetsu Shin.
• Long-Horned Beetle Inves (カミキリインベス, Kamikiri Inbesu): An Evolved Inves capable of using its antennae like whips. Jonouchi summons it to draw out Kamen Rider Zangetsu, but the Inves is destroyed by Kamen Rider Gaim.
• Lion Inves (ライオンインベス, Raion Inbesu): A powerful sub-species of Evolved Inves. Sonomura summons one to help him commit robberies. However, the Lockseed he used to summon the Lion Inves shorts out, causing the monster to grow wings and attack its summoner until Kamen Rider Gaim destroys it. Another one appears during the Badan Empire's attack on Zawame after one of their Moguraroids accidentally digs up a Crack. After eating a Helheim fruit while fighting the ToQgers, this Lion Inves grows to gigantic proportions, but is destroyed by the ToQgers' mecha, ToQ-Oh CarCarrier Tank.
• Bixie Inves: A Category H Inves. See Ryoji Hase.
• Goat Inves (ヤギインベス, Yagi Inbesu): A powerful Evolved Inves that is destroyed by Kamen Rider Gaim and Kikaider.

Overlords

The Overlord Inves (オーバーロードインベス, Ōbārōdo Inbesu) are powerful, evolved Inves who rose above the ordinary kind, maintained their intelligence, gained the ability to manipulate the Helheim Forest's plant life, and teleport. Like the regular Inves, the Overlords were once the Femushinmu (フェムシンム) race, the dominant species of their world before Helheim consumed it. They are few in number due to a wish that Roshuo made that led to a series of wars that drove the Overlords to near extinction, with the survivors being unable to revive their race. The Overlords' existence was initially known to DJ Sagara and Ryoma Sengoku's group, with the Armored Riders slowly learning of the Overlords as the series progresses. While the Overlords have the power to avert the Helheim Forest's invasion, Roshuo chooses not to so as to remain neutral in such affairs while the others have little interest in anything other than fighting worthy opponents after having had nothing to do since their civilization collapsed.

Dēmushu

Dēmushu (デェムシュ) is a hot-tempered, anger-prone brute clad in crimson (真紅, shinku) armor who enjoys fighting, seeing humans as weak "dyoburyo" (デョブリョ), that deserve death by someone as strong as himself. He is the first of the Overlords that the Armored Riders encounter, with Kaito Kumon being his first opponent after Dēmushu struggles to communicate with him despite consulting a dictionary. Following this, the Overlord eventually learns enough Japanese to use vulgarities before facing Kumon once more. After sustaining injuries during this fight, Dēmushu takes the loss personally and attacks the Yggdrasil Corporation to find and kill his rival. He nearly overpowers Kota Kazuraba and Takatora Kureshima, but Roshuo forces Dēmushu to return to receive punishment for attacking outsiders. Following this, Dēmushu finds a Crack leading to Earth and attacks Zawame City, with the intention of destroying it for personal satisfaction. After eating a Helheim fruit and evolving into a stronger form, he overpowers the Armored Riders until Kazuraba uses the Kiwami Lockseed to destroy the Overlord.

In battle, Dēmushu wields a nagamaki-like weapon called Sheimu (シェイム), possesses the ability to fire shockwaves from his hands, and dissolve into a gelatinous mass capable of deflecting attacks while retaining his formidable offensive power.

Dēmushu is voiced by Tomokazu Sugita (杉田 智和, Sugita Tomokazu).

Redyue

Redyue (レデュエ) is a feminine, sinister, and sadistic Overlord clad in jade (翡翠, hisui) armor who uses others as her personal play things until she discards them when they are of no more use to her. After the Armored Riders arrive in Helheim, she quickly takes to manipulating them, having lived in boredom after the Femushinmu civilization collapsed. Following an encounter with Mitsuzane Kureshima and Sid, Redyue feigns defeat before leading them to the Forbidden Fruit and manipulating the latter into attacking Roshuo. She later reveals to Mitsuzane her desire to claim the Forbidden Fruit's power for herself. To achieve this, she convinces Roshuo to give her the fruit in exchange for using Earth's technology to revive his queen, with the intention of betraying him later on. However, the Armored Riders' allies rescue her prisoners while she is furious to learn that Roshuo had already given the Forbidden Fruit to someone else and kills him before she is in turn killed by Kazuraba.

In battle, Redyue wields a Dau (ダウ) spear, can emit sounds capable of overloading a target's hearing, and reopen Cracks.

Redyue is voiced by Kenjiro Tsuda (津田 健次郎, Tsuda Kenjirō).

Roshuo

Roshuo (ロシュオ) is the leader of the Overlords clad in chalk (白亜, hakua) armor who normally rests deep within the ruins of his former civilization and believes humans are no different from the Femushinmu. Having endured Helheim while it was consuming his world, Roshuo became its king and used the Forbidden Fruit to turn the world into one that reflects his ideals of the strong ruling over the weak. However, as those blessed by the forest slaughter those unable to fight back, Roshuo learned too late that his wish caused a conflict that destroyed the Femushinmu civilization, with his queen among the casualties. Expressing disgust for conflict, Roshuo uses his incredible psychic power to keep the remaining Overlords in check. He also observes Yggdrasil's research team, particularly their technology capable of using a Lockseed's power without turning their owner into an Inves.

After rescuing Takatora Kureshima, Roshuo reveals his history to him along with his ownership of humanity and the Femushinmu's Forbidden Fruits. Though possession of multiple Forbidden Fruits is against Helheim's laws, Roshuo sees no reason to give humanity's fruit to them as he would do anything to revive his beloved and believes the two fruits will facilitate it. However, Sagara convinces Roshuo to give humanity a second chance. The latter obliges by creating the Kiwami Lockseed from a fragment of humanity's Forbidden Fruit and giving it to Sagara in the hopes that he is right. Despite this, the Overlord also promises to give Redyue the Forbidden Fruit if she can revive his beloved. During the closing stages of the Inves' invasion of Zawame, Roshuo meets Mai Takatsukasa, who helps ease his regret and help him see that humanity is not as bad as he initially believed. In return, he chooses to make her humanity's Maiden of Fate and entrusts her with humanity's Forbidden Fruit. He is later killed by Redyue while fighting Kota and Kaito Kumon.

Roshuo possesses heightened intelligence, which allows him to learn the Japanese language quickly, achieving proficiency in conversing fluently as well as speaking in a manner befitting his status, power, and experience. He also wields the Joeshuimu (ジョエシュイム) sword and possesses powerful telekinetic abilities.

Roshuo is voiced by Jōji Nakata (中田 譲治, Nakata Jōji).

Minor Overlords

• Dyudyuonshu (デュデュオンシュ): A Vermilion Bird (朱雀, Suzaku)-themed Overlord who serves under Redyue and wields a snake sword (蛇剣, jaken)-like weapon called Dēngoshuimu (デェンゴシュイム), which is capable of channeling and redirecting energy attacks. He is tasked with aiding Mitsuzane in an attempt on Kota's life, only to be destroyed by Kota as Kamen Rider Gaim. Dyudyuonshu is voiced by Yōji Ueda (上田 燿司, Ueda Yōji).
• Gurinsha (グリンシャ): A white cattle (べこ, beko)-themed Overlord who serves as Roshuo's guard and personal soldier, wields a large sword (大剣, ōken) called Aashuimu (アアシュイム). Tasked with assisting Redyue, he leads Inves in abducting Zawame's citizens so she can use them as batteries for her revival machine. He is destroyed by Kamen Riders Gaim and Baron. Gurinsha is voiced by Yuuki Anai (穴井 勇輝, Anai Yūki).
• Shinmugurun (シンムグルン): A Black Tortoise (玄武, Genbu)-themed Overlord who serves under Redyue and wields a battle axe called Dimubu (ディムブ). He is destroyed by Kamen Rider Gaim.
• Queen: Roshuo's dead wife who served as the Femushinmu civilization's Maiden of Fate, bestowing Roshuo the Femushinmu and humanity's Forbidden Fruits. Roshuo attempts to revive her via the fruits and human sacrifices, but the Armored Riders' allies foil the latter while he is convinced to relinquish humanity's Golden Fruit. She initially appears in silhouette within Roshuo's memories until his death, during which she appears to him as a spirit to comfort him. The Queen is portrayed by Hiromi Iwasaki (岩崎 ひろみ, Iwasaki Hiromi).

Akira Kazuraba

Akira Kazuraba (葛葉 晶, Kazuraba Akira) is Kota's older sister. Following their parents' deaths, she takes on an office job at an Yggdrasil Corporation-affiliated company. After learning her brother became Armored Rider Gaim, she becomes protective of him, though she comes to understand that he has his own desires and advises him on how best to use his abilities for the good of others. Unbeknownst to Akira, she is targeted by her employers, who seek to make Kota give up his Rider powers.

After Akira's workplace is downsized, Kota works to find a new job to support her and himself. However, she is captured by the Overlord, Redyue, among other humans, to be used as a battery for a machine meant to revive the Overlord Roshuo's queen. However, Kota's friends manage to save the prisoners. Amidst the Overlords' invasion and Kota's gradual transformation into an Overlord himself, Akira tries her best to continue supporting her brother until the Japan Self-Defense Forces force her to evacuate Zawame City. Seven months after Kota takes the Inves away from Earth, she bonds with Takatora Kureshima over their relationships with their little brothers.

Akira Kazuraba is portrayed by Rika Izumi (泉 里香, Izumi Rika).

Oren Pierre Alfonso

Oren Pierre Alfonso (凰蓮・ピエール・アルフォンゾ, Ōren Piēru Arufonzo), born Gennosuke Oren (凰蓮 厳之介, Ōren Gennosuke), is an effeminate and muscular Parachute Regiment veteran who spent a decade in France to become a pâtissier and went on to become the owner of the Charmant (シャルモン, Sharumon) pastry shop in Zawame City. Disgusted by the Beat and Armored Riders' perceived destruction of art and being amateurs in combat, Alfonso confiscates Rider equipment from a Beat Rider so he can join the fray and show them how a true fight is meant to be fought as the gladiator/iron maiden-themed Kamen Rider Bravo (仮面ライダーブラーボ, Kamen Raidā Burābo).

Amidst his battles with the Armored Riders, Alfonso falls in love with Kamen Rider Zangetsu and joins the Yggdrasil Corporation as an enforcer amidst the Inves' outbreak, gaining the adoration of Zawame's citizens while the Beat and Armored Riders were being framed for the Inves' infectious properties. Alfonso also forcibly hires Hideyasu Jonouchi after the latter attempts to form an alliance with him and launches a smear campaign against the Beat and Armored Riders to demonize them further until Jonouchi tells him they had nothing to do with the Inves.

After the Overlord, Dēmushu, attacks Zawame with more Inves, Alfonso allies himself with the Armored Riders to fight off the monsters and reveals Mitsuzane Kureshima's deception while the youth was posing as Zangetsu after identifying his different fighting style. During the invasion's closing stages, Alfonso loses his Rider equipment to Lord Baron and is forced to evacuate Zawame by the Japan Self-Defense Forces. Three months later, Alfonso resumes his work at Charmant with Jonouchi as his apprentice and helps the latter come to terms with his friend Ryoji Hase's death. In the Kamen Rider Gaim tie-in novel, Alfonso assists Takatora Kureshima in their investigation of the Black Linden cult's international branches, using his connection in the Parachute Regiment to gather necessary intel before the two return to Japan and regroup with the Armored Riders in their final fight with Kamen Rider Saver.

During the events of the web-exclusive special, Gaim Gaiden: Kamen Rider Gridon vs. Kamen Rider Bravo, Alfonso hands his pâtissier duties and ownership of Charmant to Jonouchi so he can retire and become a mercenary, only to be hired by Takatora to investigate his former apprentice after learning Jonouchi is seemingly using deadly Helheim fruits in his pastries. After receiving new Rider equipment and while confronting Jonouchi however, Alfonso is brainwashed by Masako Suzuka and goes on a rampage until Jonouchi defeats him, freeing him from her control. Alfonso reconciles with his apprentice before Jonouchi carries him home.

Utilizing a Sengoku Driver and the Durian (ドリアン, Dorian) Lockseed, Alfonso can transform into Kamen Rider Bravo Durian Arms (ドリアンアームズ, Dorian Āmuzu), whose signature finisher is the Durian Danger (ドリアンデンジャー, Dorian Denjā). While transformed, he wields a pair of chainsaw-like Duri Noko (ドリノコ, Dori Noko, Durian Saw) broadswords, which allow him to perform the Duriasshe (ドリアッシェ, Doriasshe) finisher, and possesses a Sakura Hurricane Lockseed, which can transform into the titular motorcycle-esque Lock Vehicle.

While under Suzuka's influence during Kamen Rider Gridon vs. Kamen Rider Bravo, Alfonso uses the King Durian (キングドリアン, Kingu Dorian) Lockseed in the Sengoku Driver to transform into Kamen Rider Bravo King Durian Arms (キングドリアンアームズ, Kingu Dorian Āmuzu). In this form, he wields an upgraded version of the Duri Noko called the Giga Duri Noko (ギガドリノコ, Giga Dori Noko, Giga Durian Saws). As of the web series Kamen Rider Revice: The Mystery, the King Durian Lockseed has been purified.

Oren Pierre Alfonso is portrayed by Metal Yoshida (吉田 メタル, Yoshida Metaru).

Guest characters

• Team Gaim (チーム鎧武, Chīmu Gaimu): Kota Kazuraba, Mitsuzane Kureshima, and Mai Takatsukasa's Beat Rider group clad in modern Happi-themed outfits.
  • Chucky (チャッキー, Chakkī): A tomboy member of Team Gaim and one of its best dancers. During the Inves' invasion, she provides medical assistance. Months after the Inves are taken from Earth, Chucky joins the other Beat Riders in forming a combined dance troupe. In the Kamen Rider Gaim tie-in novel, Chucky assists the Armored Riders in their fight against the Black Linden cult by going undercover as a follower of the latter group. Chucky is portrayed by Kanon Tsuyama (津山 香音, Tsuyama Kanon).
  • Rica (リカ, Rika): A member of Team Gaim who is not as good as Chucky, but makes up for it by encouraging her friends. Months after the Inves are taken from Earth, Rica joins the other Beat Riders in forming a combined dance troupe. Rica is portrayed by Miina Yokota (横田 美菜, Yokota Miina).
  • Rat (ラット, Ratto): A member of Team Gaim who prefers flashy performances and often manages to bring up the team's mood after losses despite pushing his luck too far at times. After sustaining injuries while protecting Rica from the Bixie Inves, he is temporarily hospitalized and released shortly afterward upon testing negative for the Inves infection. Months after the Inves are taken from Earth, Rat joins the other Beat Riders in forming a combined dance troupe. Rat is portrayed by Ren Ozawa (小澤 廉, Ozawa Ren).
  • Yuya Sumii (角居 裕也, Sumii Yūya) is the former leader of Team Gaim who went missing in the Helheim Forest after obtaining a Sengoku Driver from Sid. When Kota Kazuraba and Mai Takatsukasa stumble into the Helheim Forest in search of Yuya, they find his Sengoku Driver before the White Tiger Inves (ビャッコインベス, Byakko Inbesu) attacks them. It follows them into the human world, where Kota transforms into Kamen Rider Gaim and destroys the Inves. Weeks later, while accessing the Yggdrasil Corporation's database, Mitsuzane learns that the White Tiger Inves was actually Sumii, who had transformed after he ate a Helheim Fruit. Though Mitsuzane tries to protect him from the truth, Kota is horrified once he learns that he unknowingly killed his friend before eventually making peace with the revelation. Yuya Sumii is portrayed by Hiromi Sakimoto (崎本 大海, Sakimoto Hiromi).
• Sonomura (曽野村): The leader of the Beat Rider group Team Red Hot (チームレッドホット, Chīmu Reddo Hotto), whose members wear red, flame-themed clothing. Motivated by fame and freedom, he acquires a Sengoku Driver and the Durian Lockseed from the Lockseed Dealer Sid to challenge the other Beat Riders. However, he loses the equipment to Oren Pierre Alfonso. When the Beat Riders are framed for the Inves's infectious properties, Sonomura and his team take advantage by stealing Lockseeds and using them to summon Inves to help them commit robberies. When they are confronted by Kota Kazuraba, Sonomura uses a Lockseed to summon a Lion Inves, but the device shorts out and the monster nearly kills him until Kota destroys it. Sonomura is portrayed by Takashi Kitadai (北代 高士, Kitadai Takashi).
• Ressha Sentai ToQger (烈車戦隊トッキュウジャー, Ressha Sentai Tokkyūjā): A group of children - Light, Tokacci, Mio, Hikari, and Kagura - with powerful imaginations who were aged up into young adults and recruited by the Rainbow Line to fight the Shadow Line. After making a stop in Zawame City, they cross paths with Kamen Rider Gaim while fighting members of the Badan Empire. Light, Tokacci, Mio, Hikari, and Kagura are portrayed by Jun Shison (志尊 淳, Shison Jun), Jin Hiramaki (平牧 仁, Hiramaki Jin), Riria (梨里杏), Ryusei Yokohama (横浜 流星, Yokohama Ryūsei), and Ai Moritaka (森高 愛, Moritaka Ai) respectively, who all reprise their roles from Ressha Sentai ToQger.
• Jiro (ジロー, Jirō) / Kikaider (キカイダー, Kikaidā): An amnesiac android who Kota discovers and takes care of. While helping Jiro find his purpose, Kota discovers a reboot button on his back. While Jiro initially refuses to undergo the process, fearing he will become violent, he ultimately relents and leaves to fulfill his programming. Jiro / Kikaider is portrayed by Jingi Irie (入江 甚儀, Irie Jingi), ahead of his appearance in the film Kikaider Reboot.
• Hakaider (ハカイダー, Hakaidā): An android created by the DARK Project that Ryoma Sengoku temporarily transplants his brain into as a favor to a colleague in the organization before returning to his own body due to Hakaider's programming influencing his personality.

Spin-off exclusive characters

Sengoku Period

The Sengoku Period (戦極時代, Sengoku Jidai), also known as World of Bujin (武神の世界, Bujin no Sekai), is an alternate reality that the Armored Riders reminiscent of Japan's historical Sengoku period that the Armored Riders entered through atypical Cracks in the Helheim Forest. This reality is exclusive to the film Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle.

Bujin Riders

The Bujin Riders, or simply Bujin (武神), are alternate reality versions of the 14 Heisei Kamen Riders that preceded Gaim who each serve as a lord's champion. They are all defeated by Kamen Rider Bujin Gaim and consumed by the Pitcher Plant Monster:

• Kamen Rider Bujin Kuuga (仮面ライダー武神クウガ, Kamen Raidā Bujin Kūga)
• Kamen Rider Bujin Agito (仮面ライダー武神アギト, Kamen Raidā Bujin Agito)
• Kamen Rider Bujin Ryuki (仮面ライダー武神龍騎, Kamen Raidā Bujin Ryūki)
• Kamen Rider Bujin Faiz (仮面ライダー武神ファイズ, Kamen Raidā Bujin Faizu)
• Kamen Rider Bujin Blade (仮面ライダー武神ブレイド, Kamen Raidā Bujin Bureido)
• Kamen Rider Bujin Hibiki (仮面ライダー武神響鬼, Kamen Raidā Bujin Hibiki)
• Kamen Rider Bujin Kabuto (仮面ライダー武神カブト, Kamen Raidā Bujin Kabuto)
• Kamen Rider Bujin Den-O (仮面ライダー武神電王, Kamen Raidā Bujin Den'ō)
• Kamen Rider Bujin Kiva (仮面ライダー武神キバ, Kamen Raidā Bujin Kiba)
• Kamen Rider Bujin Decade (仮面ライダー武神ディケイド, Kamen Raidā Bujin Dikeido)
• Kamen Rider Bujin W (仮面ライダー武神W (ダブル), Kamen Raidā Bujin Daburu), who serves under Hideyoshi
• Kamen Rider Bujin OOO (仮面ライダー武神オーズ, Kamen Raidā Bujin Ōzu), who serves under Nobunaga
• Kamen Rider Bujin Fourze (仮面ライダー武神フォーゼ, Kamen Raidā Bujin Fōze)
• Kamen Rider Bujin Wizard (仮面ライダー武神ウィザード, Kamen Raidā Bujin Wizādo), who serves under Ieyasu.

The Bujin Riders are voiced by Tatsuya Takagi (高木 達也, Takagi Tatsuya) and Yuma Uchida (内田 雄馬, Uchida Yūma).

Kamen Rider Bujin Gaim

Kamen Rider Bujin Gaim (仮面ライダー武神鎧武, Kamen Raidā Bujin Gaimu) is an alternate reality version of Kamen Rider Gaim and a Bujin Rider who is considered the strongest Bujin. While attempting to obtain the power of his universe's sacred tree, he kills all of the Bujin Riders and attempts to kidnap the Maiden of Fate. However, he inadvertently kidnaps the Maiden's past self, Mai Takatsukasa, instead. He later merges with the sacred tree in an attempt to destroy the Armored Riders, but is killed by Kamen Riders Gaim and Wizard.

Utilizing a Sengoku Driver and the Blood Orange (ブラッドオレンジ, Buraddo Orenji) Lockseed, the Bujin can transform into Kamen Rider Bujin Gaim Blood Orange Arms (ブラッドオレンジアームズ, Buraddo Orenji Āmuzu), which grants him the use of a red-colored version of the Daidaimaru called the Blood Daidaimaru (ブラッド大橙丸, Buraddo Daidaimaru, Blood Great Orange Circle). After fusing himself with the sacred tree, he assumes his Lotus Position (蓮華座, Renge-za) form.

Kamen Rider Bujin Gaim is voiced by Rikiya Koyama (小山 力也, Koyama Rikiya).

Pitcher Plant Monster

The Pitcher Plant Monster (ウツボカズラ怪人, Utsubokazura Kaijin) is a monster that serves under Bujin Gaim and consumes the Bujin Riders to use their energy in the sacred tree. On Bujin Gaim's orders, the monster attacks the Armored Riders' dimension to kidnap the Maiden of Fate, only to grab Mai Takatsukasa instead. Her friends pursue the monster to the Sengoku dimension, but the Pitcher Plant Monster forces them to retreat. After attacking and capturing Kamen Rider Beast, Kamen Rider Wizard enters the Sengoku dimension to save his ally. The Pitcher Plant Monster is later killed by Kamen Riders Beast, Baron, Ryugen, and Zangetsu.

The Pitcher Plant Monster is voiced by Hiroyuki Yoshino (吉野 裕行, Yoshino Hiroyuki).

Ieyasu

Ieyasu (イエヤス) is the lord of the Wizard Army (ウィザード軍, Wizādo-gun) who loses his Bujin, Kamen Rider Bujin Wizard, to Kamen Rider Bujin Gaim. Initially mistaking Kota Kazuraba for his Bujin's killer before realizing his mistake, Ieyasu hires the youth and Mitsuzane to become his new Bujins.

Ieyasu is portrayed by JOY.

Hideyoshi

Hideyoshi (ヒデヨシ) is the lord of the W Army (W（ダブル）軍, Daburu-gun) and the Sengoku Period counterpart of Ryu Terui. He leads Kamen Rider Bujin W into battle against Bujin Gaim, but loses his Bujin to Zangetsu.

Hideyoshi is portrayed by Minehiro Kinomoto (木ノ本 嶺浩, Kinomoto Minehiro).

Chacha

Chacha (チャチャ) is the wife of Hideyoshi and the Sengoku Period counterpart of Akiko Terui (née Narumi).

Chacha is portrayed by Hikaru Yamamoto (山本 ひかる, Yamamoto Hikaru).

Nobunaga

Nobunaga (ノブナガ) is the lord of the OOO Army (オーズ軍, Ōzu-gun) and the Sengoku Period counterpart of Akira Date. He sacrifices himself while rescuing his attendant Ranmaru from Bujin Gaim's army.

Nobunaga is portrayed by Hiroaki Iwanaga (岩永 洋昭, Iwanaga Hiroaki).

Ranmaru

Ranmaru (ランマル) is a female attendant who serves under Nobunaga in the OOO Army. After Bujin OOO is killed by Bujin Gaim and Nobunaga sacrifices himself to save her, she makes Kamen Rider Baron the new lord and Bujin of the OOO Army.

Ranmaru is portrayed by Mao Ueda (上田 眞央, Ueda Mao).

Fourze Army Warlord

The unnamed Fourze Army Warlord (フォーゼ軍武将, Fōze-gun Bushō) is an ally to Ieyasu's Wizard Army and the Sengoku Period counterpart of Kengo Utahoshi.

The Fourze Army Warlord is portrayed by Ryuki Takahashi (高橋 龍輝, Takahashi Ryūki).

Kiva Army Warlord

The unnamed Kiva Army Warlord (キバ軍武将, Kiba-gun Bushō) is a rival to the Fourze Army Warlord and the Sengoku Period counterpart of Keisuke Nago / Kamen Rider IXA.

The Kiva Army Warlord is portrayed by Keisuke Kato (加藤 慶祐, Katō Keisuke).

Shu Aoi

Shu Aoi (葵 終, Aoi Shū) is the deceased son of Ren and Saki Aoi, having died in a car crash a year prior, who appears exclusively in the film Heisei Riders vs. Shōwa Riders: Kamen Rider Taisen feat. Super Sentai. The former joins the Badan Empire to revive his son, only to be brainwashed so they can use Shu's powerful imagination to revive an army of monsters and destroy the world. However, Shu's powers revive him during the revival ceremony, leading to him running away and becoming part of a plan by the Shōwa and Heisei Riders to defeat Badan. Once the Riders succeed, with help from Kyoryu Red and the ToQgers, the Shōwa Riders use the Rider Syndrome (ライダーシンドローム, Raidā Shindorōmu) to free Ren of his brainwashing and temporarily reunite the Aoi family before Shu's spirit comes to rest.

Shu Aoi is portrayed by Yuzu Aoki (青木 柚, Aoki Yuzu).

Saki Aoi

Saki Aoi (葵 咲, Aoi Saki) is the wife of Ren and mother of Shu who appears exclusively in the film Heisei Riders vs. Shōwa Riders: Kamen Rider Taisen feat. Super Sentai.

Saki Aoi is portrayed by Akiko Hinagata (雛形 あきこ, Hinagata Akiko).

Badan Empire

The Underground Empire Badan (地下帝国バダン, Chika Teikoku Badan), or Badan Empire for short, is an amalgamation of all of the previous evil groups that the first nine Shōwa Riders faced who wish to achieve world dominion, only to be foiled by the turncoat Kamen Rider ZX. Literally going underground, Badan resurfaces during the events of the crossover, "Ressha Sentai ToQger vs. Kamen Rider Gaim: Spring Break Combined Special" and the film Heisei Riders vs. Shōwa Riders: Kamen Rider Taisen feat. Super Sentai.

Ren Aoi

Ren Aoi (葵 連, Aoi Ren) is the husband of Saki Aoi and father of Shu Aoi who sought to revive his dead son, only to be to brainwashed by Badan into becoming their enforcer, Kamen Rider Fifteen (仮面ライダーフィフティーン, Kamen Raidā Fifutīn). After being defeated by Kamen Rider Gaim, he is freed from his brainwashing and temporarily reunites with his family before Shu returns to the afterlife.

Utilizing a Sengoku Driver and the Fifteen (フィフティーン, Fifutīn) Lockseed, Ren can transform into Kamen Rider Fifteen Fifteen Arms (フィフティーンアームズ, Fifutīn Āmuzu). While transformed, he wields the Yomimaru (黄泉丸, Underworld Circle) sword. He also possesses the Heisei Rider (平成ライダー, Heisei Raidā) Lockseed, which grants him access to the Heisei Riders' powers via unique Arms Changes, such as the following:

• Wizard Arms: A Kamen Rider Wizard-themed form that grants Fifteen the use of the WizarSwordGun.
• Fourze Arms: A Kamen Rider Fourze-themed form that grants Fifteen the use of States module weapons, such as the Barizun Sword and Billy the Rod.
• Gaim Arms (鎧武アームズ, Gaimu Āmuzu): A Kamen Rider Gaim-themed form that grants Fifteen the use of the Daidaimaru and Musou Saber.
• Decade Arms (ディケイドアームズ, Dikeido Āmuzu): A Kamen Rider Decade-themed form that grants Fifteen the use of the Ride Booker and the powers of the nine Heisei Riders that preceded Decade.

Ren Aoi is portrayed by Itsuji Itao (板尾 創路, Itao Itsuji).

Moguraroid Brothers

The Moguraroid (モグラロイド, Moguraroido) Brothers are twin mole-themed Badan cyborgs tasked with digging holes to bring their compatriots to the surface. The elder brother accidentally opens Cracks that summon Inves before he is destroyed by Kamen Rider Gaim while the younger brother is destroyed by the ToQgers.

The Moguraroid brothers are both voiced by Kyousei Tsukui (津久井 教生, Tsukui Kyōsei).

The Soccer World

The Soccer World is an alternate timeline created by Lapis, who grew tired of bloodshed and war, that appears exclusively in the film Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!.

Kogane

Kogane (コウガネ, Kōgane) is a manifestation of the Forbidden Fruit created by the previous Overlords in the past. When one of Ryoma Sengoku's experiments goes awry, Kogane awakens and kills him before taking on the form of a middle-aged man and creating a Locust Monster to either possess a human host to revive itself or infect humans and turn them into mindless monsters. Because of its existence on Earth, Kogane causes most of the Armored Riders to turn against each other in their search for the Golden Fruit. All the while, it masquerades as Yuya Sumii to get close to and manipulate Kota Kazuraba. It later defeats and brainwashes him into becoming its vassal, Kamen Rider Gaim Yami, to hunt down Lapis. However, Lapis enters Kota's mind and works to free him from Kogane's control. After losing his vassal, Kogane transforms into the European knight-themed Kamen Rider Mars (仮面ライダーマルス, Kamen Raidā Marusu) to destroy the Armored Riders, only to be defeated by them.

In the series finale, a time distortion causes Kogane to arrive in the primary timeline, where it possesses a teenage girl and becomes the samurai-themed Kamen Rider Jam (仮面ライダー邪武, Kamen Raidā Jamu) to seek revenge against the Armored Riders. It defeats Hideyasu Jonouchi, but after being cornered by Kamen Rider Ryugen, Kogane attempts to use its host as leverage until the primary timeline Kota returns to Earth and helps Ryugen free the girl and defeat Kogane.

Initially utilizing a Sengoku Driver and the Golden Ringo (金のリンゴ, Kin no Ringo) Lockseed, Kogane can transform into Kamen Rider Mars Golden Arms (ゴールデンアームズ, Gōruden Āmuzu). While transformed, it wields the Apple Reflector (アップルリフレクター, Appuru Rifūrekutā) shield and the Sword Bringer (ソードブリンガー, Sōdo Buringā).

After appearing in the primary timeline, it utilizes a new Sengoku Driver and the Black Ringo (黒のリンゴ, Kuro no Ringo, Black Apple) Lockseed to transform into Kamen Rider Jam Darkness Arms (ダークネスアームズ, Dākunesu Āmuzu). While transformed, it wields a pink-colored version of the Daidaimaru called the Dark Daidaimaru (ダーク大橙丸, Dāku Daidaimaru, Dark Great Orange Circle) and a Musou Saber. It can also combine the Dark Daidaimaru and Musou Saber to access the former's Naginata Mode, which allows it to perform the Apple Bullets (リンゴ弾, Ringo Dan) finisher.

Kogane is portrayed by Kataoka Ainosuke VI (六代目 片岡 愛之助, Rokudaime Kataoka Ainosuke) while the unnamed teenage girl is portrayed by Honoka Ando (安藤 穂乃果, Ando Honoka) and Kamen Rider Jam is voiced by Atsushi Ono (斧 アツシ, Ono Atsushi).

Locust Monster

The Locust Monster (イナゴ怪人, Inago Kaijin) is a monster created by Kogane, who used the power of the Golden Fruit to fuse a swarm of locusts together. It briefly appears during the series before Kota Kazuraba forces it to retreat. During the events of Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!, the Locust Monster attacks the Soccer World version of Kaito Kumon, who destroys the monster.

Another Locust Monster appears in the series finale, accompanying Kogane in his quest to seek revenge against the Armored Riders. It overpowers Hideyasu Jonouchi and Ryugen before Kota destroys it.

In battle, it has the ability to transform into a swarm of insects, which can infect people and turn them into mindless monsters or locate suitable hosts for Kogane.

Lapis

Lapis (ラピス, Rapisu), aka Shamubishe (シャムビシェ), is the Soccer World counterpart of Kota who similarly became an Overlord. He uses his special bracelet to escape to Earth before the Helheim Forest was taken over by the Forbidden Fruit, unaware that the bracelet contained an evil entity created by another Overlord that would go on to become Kogane. Lapis eventually grew tired of the bloodshed and fighting he experienced on Earth and, following a chance encounter with Kota Kazuraba, used his powers to create an alternate reality where people play soccer instead of fight.

After Kogane attempts to corrupt his world, Lapis helps Kota and the Armored Riders fight back before DJ Sagara gives him the means to become the samurai-themed Kamen Rider Kamuro (仮面ライダー冠（カムロ）, Kamen Raidā Kamuro) and help his friends defeat Kogane before disappearing.

Utilizing a Sengoku Driver and the Silver Ringo (銀のリンゴ, Gin no Ringo, Silver Apple) Lockseed, Lapis can transform into Kamen Rider Kamuro Silver Arms (シルバーアームズ, Shirubā Āmuzu). While transformed, he wields the Souginjou (蒼銀杖, Sōginjō, Blue and Silver Staff).

Lapis is portrayed by Taketo Tanaka (田中 偉登, Tanaka Taketo).

Megahex

Megahex (メガヘクス, Megahekusu) is a mechanical alien lifeform with the ability to assimilate worlds, having originally been his world's Man of the Beginning before using his wish to assimilate his entire world and become its core as Planet Megahex. From his perspective, individuality is a pointless concept and that absorbing others into his data system is beneficial. Coming across Kota Kazuraba and Mai Takatsukasa's planet, Megahex accessed the former's mind and learned of Earth's existence before seemingly destroying him and capturing Takatsukasa. Upon reaching Earth, Megahex creates facsimiles of Ryoma Sengoku and Kaito Kumon to serve him and assimilates the Cyberoid ZZZ android to become ZZZ Megahex (ZZZメガヘクス, Surī Zetto Megahekusu). However, the Kumon facsimile betrays him before ZZZ Megahex is weakened by Kota, the Armored Riders, Kamen Rider Drive, Mashin Chaser, Heart, and Brain before Kamen Riders Gaim and Drive travel to Planet Megahex and destroy the alien.

Megahex is voiced by Shin-ichiro Miki (三木 眞一郎, Miki Shin'ichirō).

Amagi Kureshima

Amagi Kureshima (呉島 天樹, Kureshima Amagi) is the patriarch of the Kureshima family with influence in the Yggdrasil Corporation and the father of Takatora and Mitsuzane who appears exclusively in the V-Cinema Gaim Gaiden: Kamen Rider Zangetsu. Years prior, he built a childcare facility for Zawame City's orphans, such as Tōka Akatsuki and Ryoma Sengoku, but secretly used the children to either conduct Helheim-related experiments on or select to work for Yggdrasil. In both cases, he made sure to teach them the concept of noblesse oblige, as his nobility was all that remained of his good nature. While Amagi was killed by a vengeful Akatsuki, his influence continued to linger in his sons, though Takatora was able to get out from his father's shadow.

Amagi Kureshima is portrayed by Minori Terada (寺田 農, Terada Minori).

Tōka Akatsuki

Tōka Akatsuki (朱月 藤果, Akatsuki Tōka) is a servant of the Kureshima family and one of Amagi Kureshima's guinea pigs, whom he used in Helheim Forest-related experiments, who appears exclusively in the V-Cinema Gaim Gaiden: Kamen Rider Zangetsu. She eventually kills Amagi and steals the Forbidden Ringo (禁断のリンゴ, Kindan no Ringo, Forbidden Apple) Lockseed to destroy the man's legacy as the European knight-themed Kamen Rider Idunn (仮面ライダーイドゥン, Kamen Raidā Idun) After being confronted and defeated by Amagi's eldest son, Takatora Kureshima, she is secretly killed by Ryoma Sengoku, who takes the Forbidden Ringo Lockseed back.

Utilizing a Sengoku Driver and the Forbidden Ringo Lockseed, Tōka can transform into Kamen Rider Idunn Ringo Arms (リンゴアームズ, Ringo Āmuzu, Apple Arms). While transformed, she wields the Apple Reflector and the Sword Bringer.

Tōka Akatsuki is portrayed by Sayuri Iwata (岩田 さゆり, Iwata Sayuri). As a teenager, Akatsuki is portrayed by Ai Uchida (内田 愛, Uchida Ai).

Shapool

Shapool (シャプール, Shapūru) is the heir of a foreign country who physically resembles Kaito Kumon and first appears in the V-Cinema Gaim Gaiden: Kamen Rider Baron. He visits Zawame City as part of an inspection, but escapes from his strict butler, Alfred, to seek out freedom instead. Shapool later locates, sedates, and masquerades as Kumon until his identity is immediately revealed after he attempts to use Kumon's Sengoku Driver, which is genetically locked to him. Even in spite of what happened, Kumon warns Shapool that Alfred wants to kill him. Once Alfred finds him, the former reveals his desire to kill Shapool and take his family's fortune for himself. With Kumon's help, Shapool narrowly escapes, and the two compare their life experiences. When Alfred attacks Kumon's friends, Shapool attempts to take responsibility, but Kumon convinces him to stay back. Once Kumon defeats Alfred, Shapool writes a message for the former, thanking Kumon for inspiring him to become strong, and returns to his country to speak with his father.

In the Kamen Rider Gaim tie-in novel, Shapool takes over his adopted father's foundation after the latter was arrested for supplying the Black Linden cult with Sengoku Drivers, forcing the young man to work feverishly to get the organization back on the right track.

Shapool is portrayed by Yutaka Kobayashi, who also portrays Kaito Kumon.

Alfred

Alfred (アルフレッド, Arufureddo) is Shapool's family's strict butler who appears exclusively in the V-Cinema Gaim Gaiden: Kamen Rider Baron. He secretly plans to murder his employers and take their fortune for himself, but when Kaito Kumon interferes with his plans, the butler receives help from Ryoma Sengoku, who gives him the means to become the European knight-themed Kamen Rider Tyrant (仮面ライダータイラント, Kamen Raidā Tairanto). Unbeknownst to Alfred however, Sengoku was secretly using him to test the Dragon Fruits Energy Lockseed, which gradually turns the butler into the ox-like Overlord Tyrant (タイラント, Tairanto). After going on a rampage, Alfred is destroyed by Kamen Rider Baron.

Utilizing a Genesis Driver and the prototype Dragon Fruits Energy Lockseed, Alfred can transform into Kamen Rider Tyrant Dragon Energy Arms. While transformed, he wields a Sonic Arrow.

Alfred is portrayed by Gamon Kaai (河相 我聞, Kaai Gamon).

Kugai Kudo

Kugai Kudo (狗道 供界, Kudō Kugai) is a former researcher for the Yggdrasil Corporation and a colleague of Ryoma Sengoku until he was killed while testing the Ringo Lockseed. Kudo was trapped in a state of limbo until he received the Zakuro Lockseed from DJ Sagara and uses his newfound abilities to establish the Black Linden (黒の菩提樹, Kuro no Bodaiju) cult and lead them as their messiah claimant while using his brainwashed followers as expendable suicide bombers. In the V-Cinema Gaim Gaiden: Kamen Rider Duke, Kudo initially haunts Sengoku and menaces the Yggdrasil Corporation until the latter stops him as Kamen Rider Duke. Although it seemed that Kudo disappeared due to his Sengoku Driver being destroyed, he is able to manipulate his followers into recreating the belt and make his move during the events of the V-Cinema Kamen Rider Knuckle and the Kamen Rider Gaim tie-in novel, expanding the Black Linden cult outside of Japan by collaborating with Yggdrasil's remnants and Shura's Neo Baron team. Following Shura's death, Kudo instigates chaos in Zawame by creating Bodhi Tree-like roots that turn its citizens into mindless slaves before converting them into Overlord Inves. After failing to imprison the Armored Riders in a mental prison, Kudo uses his newly created Ringo Lockseeds to gain an advantage before the Armored Riders counter it with their new forms. Once Kota shatters his realm and frees the Armored Riders, the weakened Kudo finally dies as he is freed from his limbo.

Utilizing a Sengoku Driver, Genesis Core Unit, and the Blood Orange and Zakuro (ザクロ) Lockseeds, Kudo can transform into the samurai/European knight-themed Kamen Rider Saver (仮面ライダーセイヴァー, Kamen Raidā Seivā) Blood Zakuro Arms (ブラッドザクロアームズ, Buraddo Zakuro Āmuzu). While transformed, he wields the Blood Daidaimaru and a black-colored version of the Sonic Arrow called the Saver Arrow (セイヴァーアロー, Seivā Arō). In the Kamen Rider Gaim tie-in novel, Saver gains access to the Golden Ringo Arms, Darkness Ringo Arms, and Maja Arms (魔蛇アームズ, Mājā Āmuzu). In addition, Kudo can also assume monstrous forms, such as Lotus Position False God Saver (蓮華座偽神セイヴァー, Renge-za Gishin Seivā), a giant snake monster, and a Skeletal Dinosaur (骸骨恐竜, Gaikotsu Kyōryū).

Kugai Kudo is portrayed by Jun Toba (鳥羽 潤, Toba Jun).

Azami

Azami (アザミ) is Peko's sister and friend of Team Baron.

Azami is portrayed by Maari (麻亜里).

Shura

Shura (シュラ) is a former member of Team Baron who was ousted by Kaito Kumon prior to the series following a failed attempt to kill Kumon and take over leadership of Team Baron. During the events of Gaim Gaiden: Kamen Rider Knuckle, Shura forms the criminal group, Neo Baron (ネオ・バロン), and returns as Kamen Rider Black Baron (仮面ライダーブラックバロン, Kamen Raidā Burakku Baron) to take revenge on his former team.

Utilizing a mass-produced Sengoku Driver and a Banana Lockseed, Shura can transform into Kamen Rider Black Baron Banana Arms. While transformed, he wields the Bana Spear.

Shura is portrayed by Ryusuke Nakamura (中村 龍介, Nakamura Ryūsuke).

Torkia Republic

The Torkia Republic (トルキア共和国, Torukia Kyōwakoku) is a fictional country that appears in the Kamen Rider Zangetsu: Gaim Gaiden stage show and its novelization Kamen Rider Gaim Gaiden: Kamen Rider Zangetsu. After its branch of the Yggdrasill Corporation activated the Scalar System, the Torkia Republic was destroyed and reduced to an underground city in which its low-ranking citizens were forced to fight against one another to survive while its noble residents live on the surface and benefit from the conflict as a form of entertainment. With the exception of the Shizumiya family, most citizens of the Torkia Republic's underground ruins are named after the 72 demons listed in the Ars Goetia.

The Torkia Republic's Armored Riders use prototype versions of Sengoku Drivers that allow them to assume black-colored versions of their Zawame City-counterparts. However, due to its incomplete system, it also slowly transforms them into Category H Inves.

• Orange Ride (オレンジ・ライド, Orenji Raido): A faction that resembles Team Gaim and is led by Aym, who took over after the previous leader, Simon, went missing. At the start of the story, members of Orange Ride are reduced to three people after most of its members were killed.
  • Simon (サイモン, Saimon): The former leader of team Orange Ride who went missing prior to the story. In the novelization, Simon suffers a similar fate as Yuya Sumii after obtaining a Sengoku Driver and was intended to become Proto Gaim, but ended up mutating into an Inves and was forced to be killed to put him out of his misery.
  • Aym (アイム, Aimu): The current leader of Orange Ride who shares Kota Kazuraba's idealism, but is willing to sacrifice others to save lives. Aym transforms into Kamen Rider Proto Gaim (仮面ライダープロト鎧武, Kamen Raidā Puroto Gaimu) to fight Glasya, but eventually becomes possessed by Kota's spirit to deliver the Kachidoki Lockseed to Takatora. Aym is portrayed by Keigo Hagiya (萩谷 慧悟, Hagiya Keigo).
  • Paimon (パイモン): A hot-blooded member who wields an iron pipe. Paimon is portrayed by Dai Goto (後藤 大, Goto Dai).
  • Gusion (グシオン, Gushion): A quiet member of the team. Gusion is portrayed by Keito Takahashi (高橋 奎仁, Takahashi Keito).
• Baroque Red (バロック・レッド, Barokku Reddo): A team that resembles Team Baron, acts independently, and refuses to cooperate with outside forces regardless of their strengths.
  • Glasya (グラシャ, Gurasha): The cold leader of Baroque Red who shares Kaito Kumon's philosophy, respected and acknowledged Simon's strength. and hopes to overthrow the Torkia Republic's nobles from power. Glasya transforms into Kamen Rider Proto Baron (仮面ライダープロトバロン, Kamen Raidā Puroto Baron) to fight rival teams. After Foras' death, Glasya is defeated by Aym when their philosophies clash, acknowledging his rival's strength with his final breath. In the novelization, Glasya is revealed to have been a child from an impoverished family whose parents sold themselves to Yggdrasill as their test subjects before being turned into Inves and killed afterwards. Glasya's discovery of what happened shaped his mentality and desire to seek power and led to him accepting the prototype Sengoku Driver in spite of it slowly transforming him into an Inves. Glasya is portrayed by Atsuki Mashiko (増子 敦貴, Mashiko Atsuki).
  • Berith (ベリト, Berito): A warlike member who respects Glasya. Berith is portrayed by Kyohei Chida (千田 京平, Chida Kyōhei).
  • Ose (オセ): A cool-headed member of Baroque Red. Ose is portrayed by Rui Tabuchi (田淵 累生, Tabuchi Rui).
• Green Dolls (グリーン・ドールズ, Gurīn Dōruzu): A team that resembles Teams Invitto and Raid Wild.
  • Foras (フォラス, Forasu): The leader of the Green Dolls who resembles Ryoji Hase and Hideyasu Jonouchi and can transform into Kamen Rider Proto Gridon (仮面ライダープロトグリドン, Kamen Raidā Puroto Guridon). After he is overthrown by Yukimura as the Green Dolls' leader, Foras slowly transforms into an Inves due to his Sengoku Driver's side effects and is given a mercy kill by Aym to stop his rampage. While details of Foras' background goes unstated in the stage show, the novelization portrays him as being respected by his teammates due to his kindness. Foras is portrayed by Yuya Uno (宇野 結也, Uno Yūya).
  • Yukimura Belial Grunstein (雪叢・ベリアル・グランスタイン, Yukimura Beriaru Guransutain): A mercenary who overthrows Foras as the Green Dolls' leader. Displaying similar mannerisms as Oren Pierre Alfonzo, Yukimura transforms into Kamen Rider Proto Bravo (仮面ライダープロトブラーボ, Kamen Raidā Puroto Burābo) using equipment given to him by Kagiomi and is assigned to assassinate Takatora. After seeing Foras' mutation into an Inves, Yukimura cancels his contract with Kagiomi and allies himself with Takatora, rallying his men in fighting against Kagiomi's forces as Takatora marches his way to Masahito during the final battle. Yukimura Belial Grunstein is portrayed by Shota Onuma (小沼 将太, Onuma Shota).
• Shizumiya family: A family of nobles.
  • Masahito Shizumiya (鎮宮 雅仁, Shizumiya Masahito): The main antagonist of the Kamen Rider Zangetsu: Gaim Gaiden stage show and the eldest son of the Shizumiya family. He was originally a good friend of Takatora who has a stable relationship with his family members and shares the Kureshima family's views on noblesse oblige. The Torkia Republic's population's gradual transformation into Inves leads to Masahito activating the Scalar System and seemingly dying from the explosion that destroyed their nation. In reality, he survived and mutated into an Overlord Inves form that resembles Redyue. During Takatora's visit to Torkia's ruins, Masahito ambushes his former friend, renders him amnesiac, and steals the equipment necessary to transform into Zangetsu. Seeking to lead mankind after deeming them incapable of correcting their own mistakes, Masahito hunts Takatora to prove their similarities and attacks Kagemasa. However, Takatora uses the Kachidoki Lockseed he received from Kota to defeat Masahito, who allows the former to kill him upon realizing his mistake so he can atone for his mistakes. Masahito Shizumiya is portrayed by Haruki Kiyama (丘山 晴己, Kiyama Haruki).
  • Kagemasa Shizumiya (鎮宮 影正, Shizumiya Kagemasa): The youngest son of the Shizumiya family who resembles Mitsuzane, is an old friend of Aym, and transforms into Kamen Rider Proto Ryugen (仮面ライダープロト龍玄, Kamen Raidā Puroto Ryūgen). Using his likeness with his counterpart, Kagemasa helps the amnesiac Takatora recover his memories in the hopes of killing him at his most vulnerable and avenging the seemingly deceased Masahito as Kagemasa blames Takatora for profiting off of what happened to the Torkia Republic and being hailed as a hero in Zawame. Upon discovering Masahito is alive and being attacked by him, Kagemasa gives Takatora his prototype Sengoku Driver so the latter can stop Masahito's reign of terror. While Kagemasa apparently dies in the stage show, it is revealed in the novelization that Aym saved him at the last minute. Kagemasa Shizumiya is portrayed by Motohisa Harashima (原嶋 元久, Harashima Motohisa).
  • Kagiomi Shizumiya (鎮宮 鍵臣, Shizumiya Kagiomi): The patriarch of the Shizumiya family, a member of the Yggdrasil Corporation, and one of the Torkia Republic's nobles who engineered the war between Torkia's survivors for his own entertainment. After the failure of Project Ark weakens their connection with the Kureshima family, Kagiomi aims to take over the Yggdrasill Corporation for his own until he is killed by Masahito. While the stage show portrays him as a comical man, the novelization portrays him as a ruthless man who abuses his own children. Kagiomi Shizumiya is portrayed by Hiroo Ohtaka (大高 洋夫, Ōtaka Hiroo).

Masako Suzuka

Masako Suzuka (鈴鹿 まさこ, Suzuka Masako) is Hideyasu Jonouchi's secretary, whom he hired sometime after succeeding Oren Pierre Alfonso as a pâtissier. Using the power of Helheim, she manipulates the former into unknowingly using deadly Helheim fruit in his new fruit cakes to transform customers into Inves and brainwash Alfonso into her mindless slave. However, her crimes are discovered by Takatora Kureshima, who defeats her and foils her plans while Jonouchi frees Alfonso from her control.

Utilizing a Sengoku Driver and the Helheim (ヘルヘイム, Heruheimu) Lockseed, Masako can transform into the Arabian soldier-themed Kamen Rider Sylphi (仮面ライダーシルフィー, Kamen Raidā Shirufī) Hells Arms (ヘルズアームズ, Heruzu Āmuzu). While transformed, she wields the Hells Cane (ヘルズケイン, Heruzu Kein) spear.

Masako Suzuka is portrayed by Tomomi Jiena Sumi (鷲見 友美 ジェナ, Sumi Tomomi Jena).

External links

• Cast on TV Asahi