List of Ace of Diamond characters

The following is a list of characters that appear in the baseball manga and anime, Ace of Diamond.

Characters

Seidō High School

Eijun Sawamura

Position: Pitcher

Voiced by: Ryōta Ōsaka

Eijun Sawamura (沢村 栄純, Sawamura Eijun) is the main character. Eijun is a left-handed pitcher who has extremely erratic throwing motions. His body is naturally flexible with supple joints, allowing him to immediately change the pitch’s direction. Because Eijun has been playing baseball without proper instruction, his pitches normally change direction right before the batter hits the ball. However, this makes catching the ball difficult, as most catchers cannot predict where the ball will end up. He was initially unaware of this quirk in his throws. His knowledge about baseball is mediocre at best, but he strives to improve his skills and become Seidou's ace player.

Eijun comes from Nagano where he played baseball in his middle school. His team was below average, often making mistakes during critical moments and losing almost all matches. However, Eijun has an extremely strong spirit which, no matter how hopeless the situation got, inspired his teammates to continue playing their best. His childhood friend, Wakana, was the baseball team manager. Initially, after Eijun had been scouted by Seidou, he had planned to refuse because he wanted to keep playing with his friends in the same high school. However, his friends encouraged Eijun to go to Seidou despite their reluctant feelings because they felt as if they were holding Eijun back. Eijun eventually goes to Seidou and boldly declares that he will become the team ace.

Eijun’s strong points are his infallible spirit, bunting, infield defense, and his idiosyncratic pitches. His weaknesses are control, outfield defense, and batting. His personality is hotheaded and loudmouthed, often causing his teammates exasperation because of his stupidity. He has a rivalry/friendship with Furuya Satoru, a fellow first-year pitcher. Because his middle school team was so weak, he is extremely level-headed in critical times.

Satoru Furuya

Position: Pitcher, Left Fielder

Voiced by: Nobunaga Shimazaki

Satoru Furuya (降谷 暁, Furuya Satoru) is Eijun’s rival, Furuya is a right-handed pitcher with extremely strong fastballs and forkballs. Furuya’s pitches are so strong that no catcher in Hokkaido was able to receive them. As a result, he became alienated from his middle-school team because he was far above them in ability. After hearing about the genius catcher, Miyuki Kazuya, he applied to go to Seidou high school to play baseball with him, and immediately took respect when Miyuki easily caught his pitch. During the game of first years versus second years, Furuya jumped from the second team to the first team after only one pitch. After playing his first official game against Yokohama, Furuya became a living legend within the high school baseball world and is often described as a monster rookie.

Furuya’s strong points are his incredible pitching, outfield defense, and batting. His weaknesses are stamina and infield defense. Furuya’s pitches are so powerful that they cause damage to his fingertips so applies nail polish to make the nails sturdier. Since he is from Hokkaido and not used to the summer heat in Tokyo, stamina becomes an issue so he cannot pitch for very long. He is stoic and unsociable with a cool demeanor and often has an expressionless face. However, his aura completely changes while pitching, once being described as "a wild wolf who wants to pitch some balls". He dislikes all other aspects of baseball besides pitching. However, he is surprisingly humble, once mentioning that he never thought himself better than Eijun. He respects Eijun to a certain point and often accompanies Eijun to do extra practice at night. Because he was an outcast in his middle school, he is happy about but unused to the Seidou upperclassmen’s friendly but bossy treatment towards him, being content when he was ordered to fetch them drinks and uncomfortable when they excessively praise him. He also likes taking advice. He gets bored easily, disliking it when he cannot play in a match, and often falls asleep when he isn’t playing, or when he wants to ignore somebody.

Kazuya Miyuki

Position: Catcher

Voiced by: Takahiro Sakurai

Kazuya Miyuki (御幸 一也, Miyuki Kazuya) is a brilliant second-year catcher with an easy going yet twisted personality to draw out the full potential from the pitchers. He is the main catcher in Seidou High School, making smart and bold gameplays. Miyuki has a great respect for Chris as a catcher, as he was on the team that Miyuki couldn't beat. He was voted as the new captain after the third years retired. When he was young, he was always harassed and bullied -to the point that he was beaten up- by his baseball teammates in his junior high, resulting in him to push others away from his personal life. It is also shown that he isn't very much close to his parents. Miyuki is perceived as manipulative and nasty personality wise. He does not open up to people or talk about his past with other people. In all actuality he is pretty closed off with himself. He is one of the few players whose room is often flocked to by other members. He is later injured during one of the plays in the semi-final game against Seiko in the Fall Tournament, but kept it to himself so he could still play finals. His injury was stated as "pulled side abdominal". He wasn't allowed later on to play at the Jingu tournament given the doctor's advise of three-week recovery period. Within that time, all he did was to look after the team and specifically comment on the sense of unity of the pitchers which he finds sickeningly well to his taste. After that 3 weeks, he started some light exercise like running and hanging out with Chris at their training center. He came back completely recovered to the team for the hellish Winter camp.

Haruichi Kominato

Position: Second Baseman

Voiced by: Natsuki Hanae

Haruichi Kominato (小湊 春市, Kominato Haruichi) is a first-year second baseman of the team, Haruichi is a naturally talented, all-rounder baseball player. Despite his small stature and frail appearance, he has pinpoint precision while batting the ball, able to hit it as wide and as far as he pleases, and control where the ball lands. He also is extremely talented at defense, able to catch a ball in the air and throw it while still floating. He is often noted to have amazing baseball sense, able to decide in a split second where to hit the ball, what to watch for, and when to steal. His ability in baseball exceeds his older brother’s, Ryousuke Kominato, who is first-string player and also a second baseman. The only thing lacking is his stamina, which he works hard on improving.

Born in the Kanagawa Prefecture, he is a very calm and quiet person, often acting as tsukkomi to Sawamura Eijun’s boke. He has a habit of saying things bluntly and often praises either Furuya or Eijun, causing them to compete against each other frequently. He plays reserve in the first-string team and occasionally feels envious of Eijun and Furuya for being able to play in a match. He is very small compared to other boys and it has been noted that he looks a bit like a girl. He is easily embarrassed, especially when praised. His relationship with his brother is slightly strained because they play the same position, but he still admires him to no end. Though reserved, he is highly ambitious and aims to take his brother’s position. When he was a child, their relationship was closer, with Ryousuke often protecting him from bullies.

Sawamura's Year (Current second years)

Shinji Kanemaru (金丸 信二, Kanemaru Shinji)

Position: Third Baseman

Voiced by: Yoshitsugu Matsuoka

Shinji is Sawamura's classmate who gets along well with Hideaki. He initially looked down on Eijun, but was eventually impressed and admitted Eijun's abilities. He was tasked to watch over Eijun, Satoru and Haruichi by Chris, and eventually broke through the first team during fall of his first year, competing with Shōji Higasa for the starting third baseman position.

Hideaki Tōjō (東条 秀明, Tōjō Hideaki)

Position: Center Fielder, Pitcher

Voiced by: Shouta Aoi

Hideaki is a former top 4 pitcher nationwide during his middle school days. However, stellar performances from pitchers Eijun and Satoru has made it hard for Hideaki to break into the first team. He has since entered the first team as a center fielder, but has said that he won't give up on the mound.

Wataru Kariba (狩場 航, Kariba Wataru)

Position: Catcher

Voiced by: Kengo Kawanishi

Wataru is a first year catcher often asked to train with Eijun.

Current first years

Koshū Okumura (奥村 光舟, Okumura Kōshū)

Position: Catcher

Voiced by: Yūma Uchida

Kōshū is a catcher who decided to join Seidō after being impressed by their pitchers.

Takuma Seto (瀬戸 拓馬, Seto Takuma)

Position: Second Baseman

Voiced by: Daiki Yamashita

Takuma is Kōshū's friend who also decided to join Seidō.

Masashi Yūki (結城 将司, Yūki Masashi)

Voiced by: Shunsuke Takeuchi

Masashi is Tetsuya Yūki's brother who decided to join Seidō.

Kaoru Yui (由井 薫, Yui Kaori)

Position: Catcher

Hirofumi Asada (浅田 浩文, Asada Hirofumi)

Position: Pitcher

Takeshi Mogami (最上 武, Mogami Takeshi)

Position: Shortstop

Miyuki's Generation (Current third years)

Yōichi Kuramochi (倉持 洋一, Kuramochi Yōichi)

Position: Shortstop

Voiced by: Shintarō Asanuma

Kuramochi is the roommate of Sawamura who enjoys replying Wakana's text in Sawamura's place. He is shortstop who, together with Kominato Ryuosuke, forms a strong pair of middle infielders. He is assigned as the first batter due to his ability to run quickly. He likes to play video games during his free time. He is the person with the closest understanding of Miyuki's personality, despite the catcher's cheeky attitude.

Norifumi Kawakami (川上 憲史, Kawakami Norifumi)

Position: Pitcher

Voiced by: Hiro Shimono

Kawakami is a relief pitcher who usually plays towards the end of the game. He is a sidearm pitcher who is a bit weak mentally.

Kenta Maezono (前園 健太, Maezono Kenta)

Position: First Baseman

Voiced by: Hiroaki Tajiri

Kenjirō Shirasu (白州 健二郎, Shirasu Kenjirō)

Position: Right Fielder

Voiced by: Yoshiyuki Shimozuma

Shōji Higasa (樋笠 昭二, Higasa Shōji)

Position: Third Baseman

Voiced by: Shō Kawaguchi

Takeru Asō (麻生 尊, Asō Takeru)

Position: Left Fielder

Hisashi Watanabe (渡辺 久志, Watanabe Hisashi)

Voiced by: Akira Ishida

Yūki's Generation (2 years above Sawamura)

Tetsuya Yūki (結城 哲也, Yūki Tetsuya)

Position: First Baseman

Voiced by: Yoshimasa Hosoya

Tetsuya was unanimously voted by his teammate to be the captain of the Seido baseball team. His motto is to 'lead by performances' as suggested by the coach. He is also the cleanup batter of the team who is able to hit a home run. Although he is a rather quiet person, his strength seems to radiate when he is in the batter box. When he first entered Seido, his generation was considered as the weakest batch by the seniors. However, he trains hard and is able to inspire other teammates. He plays shogi during his free time although Miyuki says he is still weak at it.

Jun Isashiki (伊佐敷 純, Isashiki Jun)

Position: Center Fielder

Voiced by: Yūki Ono

Isashiki is a loud-mouthed person with a strong attitude. He wanted to be a pitcher when he first entered Seido baseball team, but was suggested to be a center fielder instead due to his strong shoulder but inability to throw a strike. He can throw a ball from the outfield to the home plate without bouncing the ball. He is also a strong batter who usually hits the ball to the right, although he admits he cannot hit better than Tetsuya.

Tōru Masuko (増子 透, Masuko Tōru)

Position: Third Baseman

Voiced by: Wataru Hatano

Masuko is a roommate of Sawamura who is able to hit a home run of Sawamura's moving fastball by forcing his strength through his batting. He was demoted to the second team once due to the error he made during a game. He likes to eat pudding.

Ryōsuke Kominato (小湊 亮介, Kominato Ryōsuke)

Position: Second Baseman

Voiced by: Nobuhiko Okamoto

Kominato is the brother of Haruichi.

Kōichirō Tanba (丹波 光一郎, Tanba Kōichirō)

Position: Pitcher

Voiced by: Masakazu Morita

Tanba is the ace of the Seido baseball team when Sawamura first entered the school. His strength is the curve ball and the forkball.

Chris Yū Takigawa (滝川・クリス・優, Takigawa Kurisu Yū)

Position: Catcher

Voiced by: Daisuke Namikawa

Chris is the former catcher of the Seido baseball team before he injured his shoulder from overworking. He was paired with Sawamura in the beginning in order to bring out his potential. He is eventually asked by the coach to become the scorekeeper of the team.

Keisuke Miyauchi (宮内 啓介, Miyauchi Keisuke)

Position: Catcher

Voiced by: Taishi Murata

Ichirō Sakai (坂井 一郎, Sakai Ichirō)

Voiced by: Eiji Takeuchi

Position: Left Fielder

Staff

Tesshin Kataoka (片岡 鉄心, Kataoka Tesshin)

Voiced by: Hiroki Tōchi

Kataoka is the coach of Seido baseball team. He rejects the offer from the pro baseball team in order to become the coach of his alma mater. He resigns after his team loses to Inashiro industries in the last round of Koshien qualifying tournament. At the same time he requests the Seido school board to let him remain the coach for the current year as his resignation may affect the morale of the baseball team and will also cause the new coach difficulties in training the team in the middle of the year.

Hiromitsu Ochiai (落合 博光, Ochiai Hiromitsu)

Voiced by: Tōru Ōkawa

Ochiai is the new assistant coach of Seido High school baseball team. He was recruited by the school after Kataoka hands his resignation. Ochiai will become the head coach of Seido high baseball team after the end of the school year.

Kazuyoshi Ōta (太田 一義, Ōta Kazuyoshi)

Voiced by: Eiji Takeuchi

Ōta is the Mentor of Seido baseball team.

Rei Takashima (高島 礼, Takashima Rei)

Voiced by: Yumi Uchiyama

Rei is the scout of Seido High school baseball team. She scouted Eijun Sawamura after seeing his middle school team's match which they lost. She believes Sawamura has the potential to become the ace of the team.

Haruno Yoshikawa (吉川 春乃, Yoshikawa Haruno)

Voiced by: Yurika Endō

Takako Fujiwara (藤原 貴子, Fujiwara Takako)

Voiced by: Rikako Yamaguchi

Sachiko Umemoto (梅本 幸子, Umemoto Sachiko)

Voiced by: Yumiri Hanamori

Yui Natsukawa (夏川 唯, Natsukawa Yui)

Voiced by: Karin Takahashi

Ichidaisan High

Active

Kōsei Amahisa (天久 光聖, Amahisa Kōsei)

Voiced by: Ryōhei Kimura

The ace of Ichidaisan High. He is known to have struck out Raichi along with Sawamura and Tanba. He utilizes sliders and fastballs.

Toshihiko Tahara (田原 利彦, Tahara Toshihiko)

Voiced by: Akio Katō

Former

Kaname Manaka (真中 要, Manaka Kaname)

Voiced by: Kōsuke Toriumi

The former ace of Ichidaisan High, he grew up together playing baseball together with Tanba. Although they separated ways since Tanba wanted to change himself and didn't want to walk in Manaka's shadow, they both remained as good friends and promised to fight it out later as aces in Koshien.

Takahiro Ōmae (大前 隆広, Ōmae Takahiro)

Voiced by: Kōki Uchiyama

Inashiro Industries

Active

Mei Narumiya (成宮 鳴, Narumiya Mei)

Voiced by: Yūki Kaji

Narumiya is considered to be the best pitcher in Kanto due to his ability to throw strong fastballs, horizontal and vertical breaking balls, as well as the changeup. He was the teammate of Miyuki during middle school. Narumiya joined Inashiro along with the other strong baseball players in order to form the best team in his generation. However, Miyuki rejected his offer and went to Seido instead.

During the Koshien championship Narumiya is nicknamed, 'The Prince of the Capital' by the mass media for his exemplary performance.

Carlos Toshiki Kamiya (神谷 カルロス 俊樹, Kamiya Karurosu Toshiki)

Voiced by: KENN

Katsuyuki Shirakawa (白河 勝之, Shirakawa Katsuyuki)

Voiced by: Sōichirō Hoshi

Riku Yamaoka (山岡 陸, Yamaoka Riku)

Voiced by: Shō Kawaguchi

Itsuki Tadano (多田野 樹, Tadano Itsuki)

Voiced by: Yoshitaka Yamaya

Hiroshige Kunitomo (国友 広重, Kunitomo Hiroshige)

Voiced by: Yutaka Nakano

Shinji Akamatsu (赤松 晋二, Akamatsu Shinji)

Voiced by: Tsubasa Yonaga

Shinji is a pitcher that has decided to join Inashiro.

Former

Masatoshi Harada (原田 雅功, Harada Masatoshi)

Voiced by: Tomoaki Maeno

Hideaki Yoshizawa (吉沢 秀明, Yoshizawa Hideaki)

Voiced by: Tetsuya Kakihara

Tsubasa Hirai (平井 翼, Hirai Tsubasa)

Voiced by: Daisuke Hirakawa

Akikawa Academy

Shun-chen Yang (楊 舜臣(ヤン シュンチェン), Yan Shunchen)

Voiced by: Kaito Ishikawa

Yeung Shunshin is a second year high school student of Akikawa Academy, who's an exchange student from Taiwan. He is a pitcher of the Akikawa Academy baseball team. He came to Tokyo because of a language exchange program, but he quickly became fascinated with Japanese baseball. He was nicknamed the "Precise Machine" because of his incredible control.

Kukoshikan High School

Naoyuki Zaizen (財前 直行, Zaizen Naoyuki)

Voiced by: Takuma Terashima

Yakushi High School

Raichi Todoroki (轟 雷市, Todoroki Raichi)

Voiced by: Kenshō Ono

Raichi is on the main batting lineup for Yakushi Highshool. His father, the coach of the team, used to have him practice his swing everyday to earn money in the future, so he is able to hit many different types of balls with a perfect swing. His father encourages him to bat well with the promise of food, such as tonkatsu. His bat is named Money Tree. He is rather quiet in school but he's the loudest one on the team. He is known for his unique "kakakaka" laugh, which he does when he's excited, particularly about facing challenging opponents.

Shunpei Sanada (真田 俊平, Sanada Shunpei)

Voiced by: Hiroshi Kamiya

Yūta Mishima (三島 優太, Mishima Yūta)

Voiced by: Tatsuhisa Suzuki

Kazuma Akiba (秋葉 一真, Akiba Kazuma)

Voiced by: Ryōsuke Kanemoto

Raizō Todoroki (轟 雷蔵, Todoroki Raizō)

Voiced by: Rintarō Nishi

Coach of the Yakushi baseball team and father of one of the players, Raichi. He needs money to repay his debts so he became the coach and trained his son to play and make money as a professional.

Others

Eitoku Sawamura (沢村 栄徳, Sawamura Eitoku)

Voiced by: Mitsuo Senda

Wakana Aotsuki (蒼月 若菜, Aotsuki Wakana)

Voiced by: Kaji Ayano

Wakana was the right fielder of Sawamura's baseball team during middle school. She is also his childhood friend. The members of Seido think Wakana is Sawamura's girlfriend and are jealous of him, tormenting him whenevever he gets a text from her. They like replying to her for him, especially Kuramochi since Sawamura is one of his roommates. It is hinted that Wakana has a crush on Sawamura throughout the story. She at one point texted him that she wished she could "see his growth from up close". Sawamura didn't understand what she meant and replied that she shouldn't say such scary stuff like she's some kind of creepy guardian spirit.

Kiyokuni Azuma (東 清国, Azuma Kiyokuni)

Voiced by: Nobuyuki Hiyama

J. Animal M. (J・アニマル・M, J Animaru M)

Voiced by: Hidenari Ugaki

A retired professional baseball player and Chris's dad. He helps Chris with rehabilitation and plans on letting him play pro once his shoulder is fully healed.