List of Mario franchise characters

0-9

• 3 Musty Fears—an undead trio of a Dry Bones, Big Boo, and Greaper who ask Mario to participate in a "Find the Flag" game, in Super Mario RPG: Legend of the Seven Stars.

A

• Air Bag (video game character)—a purple inflatable creature that inhabits mystery crates, in Yoshi's Story.
• Albatoss—a bird that drops Bob-ombs and the player can ride in Super Mario Bros. 2.
• Albino Dino—a white Dino Rhino that appears in the puzzle chamber of the Crystal Palace in Paper Mario.
• Alley Rat—a rat that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Rat Funk.
• Amanita (video game character)—a mushroom enemy that appears in Super Mario RPG: Legend of the Seven Stars.
• Amazee Dayzee—an elusive walking flower that appears in Paper Mario and Paper Mario: The Thousand-Year Door.
• Amazing Flying Hammer Brother—airborne Hammer Brothers that ride atop two connected flying blocks in Super Mario World and Super Princess Peach.
• Ameboid (video game character)—an alien creature that multiplies itself if not defeated quickly. Appears in Super Mario RPG: Legend of the Seven Stars.
• Amp (video game character)—a metal, electric, ball that shocks the character in Super Mario 64, New Super Mario Bros., and the Mario Party series.
• Angry Sun—a sun incarnation that lunges itself at Mario in Super Mario Bros. 3; also makes a cameo appearance in the Desert Hills course of Mario Kart DS.
• Anti Guy—a gray Shy Guy that's also known as "Deadly Guy", due to the fact his attacks do severe damage. Appears in Shy Guy's Toy Box, and three of them appear at Bowser's Castle in Paper Mario.
• Anuboo—A ghost in the shape of an Anubis that are found in Teehee Valley in Mario and Luigi: Superstar Saga.
• Apprentice (video game character)—Snifit interns that appear in Booster Tower in Super Mario RPG: Legend of the Seven Stars.
• Aqua Lakitu—a Lakitu wearing a scuba mask that throws Spinies from the water, in Super Mario World 2: Yoshi's Island.
• Arachne (video game character)—a yellow tarantula-like enemy that appears in Super Mario RPG: Legend of the Seven Stars.
• Arantula—a more powerful version of Pider. Appears in the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
• Army Hammer Bro—the most elite of Bowser's Hammer Brother troop, appears as a mini-boss in Super Princess Peach.
• Armored Ant—an ant enemy wearing armor that inhabits the deserts of Super Mario RPG: Legend of the Seven Stars.
• Armored Harriers—two Iron Clefts, also referred two as the "Iron Adonis Twins", whom Mario battles in the Glitz Pit of Paper Mario: The Thousand-Year Door.
• Artichoker—a monster that disguises itself as a plant in Super Mario RPG: Legend of the Seven Stars.
• Atomic Boo—a humongous and powerful Boo, made up of many smaller Boos, in Paper Mario: The Thousand-Year Door.
• Attacky Sack—A chainless, rainbow-colored Chomp that bounces through areas of Yoshi's Story.
• Autobomb (video game character)—a machine ridden by Shy Guys that shoot fireballs in Super Mario Bros. 2.
• Axem Rangers—a group of bosses Mario's party faces after completing the Barrel Volcano in Super Mario RPG: Legend of the Seven Stars; a possible parody of the Power Rangers, the Axem Rangers are Red, Black, Pink, Green, and Yellow, with a giant robot head that cumulates the power of the five.

B

• Baby Bowser—a baby version of Bowser that appears in Super Mario World 2: Yoshi's Island, Yoshi's Story, and Mario & Luigi: Partners in Time.
• Baby Cheep—Tiny Cheep-Cheeps expelled from the mouth of Big Bertha in Super Mario Bros. 3.
• Baby Donkey Kong-a baby version of Donkey Kong that appears in Yoshi's Island 2
• Baby Peach—a baby version of Peach that appears in Mario & Luigi: Partners in Time and {Yoshi's Island 2]].
• Baby Luigi—a baby version of Luigi that appears in Super Mario World 2: Yoshi's Island, Mario Kart: Double Dash!!, Mario Superstar Baseball and Mario & Luigi: Partners in Time..
• Baby Mario—a baby version of Mario that appears in Super Mario World 2: Yoshi's Island, Mario Kart: Double Dash!!, Mario Tennis, Mario Golf, Mario Superstar Baseball, and Mario & Luigi: Partners in Time.
• Baby Yoshi—Yoshi hatchlings that must consume five enemies to grow into an adult Yoshi, in Super Mario World. A nameless baby Yoshi is also one of Mario's partners in Paper Mario: The Thousand-Year Door.
• Badge Bandit—a crook found in the Pit of 100 Trials in Paper Mario: The Thousand-Year Door, who steals your badges; palette swap of Bandit.
• Bahamutt—a red dragon summoned by Chester and Magikoopa in Bowser's Keep in Super Mario RPG: Legend of the Seven Stars, obviously a parody of Bahamut from the Final Fantasy series.
• Bald Cleft—a spikeless Cleft that appears in Shhwonk Fortress in Paper Mario: The Thousand-Year Door.
• Bandana Blue—a shark lackey of Jonathan Jones in Super Mario RPG: Legend of the Seven Stars; palette swap of Bandana Red.
• Bandana Red—a shark lackey of Jonathan Jones that resides in the Sunken Ship in Super Mario RPG: Legend of the Seven Stars; palette swap of Bandana Blue.
• Bandit—masked thief enemies that appear in Super Mario World 2: Yoshi's Island, Paper Mario, Paper Mario: The Thousand-Year Door, and Mario Party 7.
• Bandy Andy (or Big Bandit) —a green Bandit who befriends Mario in the Glitz Pit in Paper Mario: The Thousand-Year Door.
• Banzai Bill—a giant version of Bullet Bill that appears in Super Mario World, Super Princess Peach and New Super Mario Bros..
• Barney Bubble—a purple critter that, when stepped, emits bubbles, and if Yoshi eats them, he too can spit bubbles; appears in Super Mario World 2: Yoshi's Island.
• Batadon—a flying stone creature with wings in Super Mario Land.
• Battle Beetle—an Atlas Beetle enemy in Super Mario Land 2: 6 Golden Coins.
• Beanie—an enemy bean found in Mario and Luigi: Superstar Saga.
• Beanlet—Five of these tiny beans hide throughout Beanbean Castle Town, and upon return to their owner, Mario is given a Golden Mushroom.
• Beanstalk—smiling plants that help Yoshi reach new heights in Super Mario World 2: Yoshi's Island.
• Beanstar—this celestial body of lore is known for protecting the Beanbean Kingdom, as well as fueling the chaos brought on by the witch, Cackletta; appears in Mario & Luigi: Superstar Saga.
• Beezo—a spear-wielding, Shy Guy-derivative enemy that debuted in Super Mario Bros. 2 and appeared as "Shy Away" in Super Mario RPG: Legend of the Seven Stars.
• Beldam—the leader of the Shadow Sirens in Paper Mario: The Thousand-Year Door
• Belome—a giant carnivorous canine boss that appears in Super Mario RPG: Legend of the Seven Stars.
• Big Bertha—a giant fish, and female counterpart to Boss Bass, that spouts small Cheep-Cheeps; appears in Super Mario Bros. 3, Super Mario 64, and Mario Kart 64. "Big Bertha" is also the name of a Blaster-like cannon enemy in Super Mario RPG: Legend of the Seven Stars which appears as a golden Bullet Bill in the overworld.
• Big Blue Boo—a blue Big Boo that appears in Super Mario World.
• Big Bob-omb— a gigantic Bomb-omb with a crown, moustache, and arms, who is the king of the Bob-ombs. Appears in Super Mario 64, the Mario Party series, Mario Golf: Toadstool Tour, Mario Superstar Baseball, and Mario Kart DS.
• Big Boo—A large Boo ghost that appears in Super Mario World, Super Mario World 2: Yoshi's Island, Super Mario 64, and Super Princess Peach.
• Big Bully—a giant Bully in Super Mario 64 and Mario Kart DS.
• Big Lantern Ghost—a large Lantern Ghost that holds Watt hostage in his lantern, in Paper Mario.
• Bigger Boo—a Boo that grows bigger and bigger with each hit, until it explodes; boss of World 2 in Super Mario World 2: Yoshi's Island.
• Biokinton—a flying cloud boss fought before Tatanga in the Chai Kingdom in Super Mario Land.
• Birdo—a dinosaur-like character that appears both as a species and an individual in Super Mario Bros. 2, Super Mario RPG: Legend of the Seven Stars, Mario and Luigi: Superstar Saga, the Mario Tennis series, Mario Kart: Double Dash!!, the Mario Golf series, Mario Superstar Baseball, Mario Party 7, and Super Mario Strikers.
• Birdy—a bird-like character that appears in Super Mario RPG: Legend of the Seven Stars; a palette swap of Blue Bird.
• Blablanadon—a friendly pterodactyl from Hoohoo Mountain in Mario & Luigi: Superstar Saga.
• Blargg—a lava-dwelling dragon that appears in Super Mario World. The same name belongs to a giant lava monster in Super Mario World 2: Yoshi's Island and Yoshi's Story.
• Blazing Shroob—a Shroob that runs around on fire inside Thwomp Volcano in Mario & Luigi: Partners in Time.
• Blizzaurus—an ice dragon, boss of Gleam Glacier in Super Princess Peach. Its true form is an ice fairy.
• Blockhopper—a robot enemy that's disguised as common brick blocks or ? Blocks, in New Super Mario Bros..
• Blooey—a Blooper, one of Luigi's partners during his "journey" in Paper Mario: The Thousand-Year Door.
• Blooper (or Bloober) —an enemy squid that appears in Super Mario Bros., Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario RPG: Legend of the Seven Stars, Paper Mario, Super Mario Sunshine, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Super Princess Peach, New Super Mario Bros., the Mario Party series, and Mario Kart DS.
• Blooper Baby—miniature Bloopers that appear in Super Mario Bros. 3 and Paper Mario.
• Blow Hard—a cactus enemy that spits Needlenoses at Yoshi, in Super Mario World 2: Yoshi's Island.
• Bluebird—a bird-like character that appears in Super Mario RPG: Legend of the Seven Stars; a palette swap of Birdy.
• Blue Blurp—a gigantic, water-spitting fish that tries to knock Yoshi into the water in order to eat him, in Yoshi's Story.
• Blue Goomba—a palette swap of a regular Goomba that pesters Mario in Paper Mario along with his brother Red Goomba.
• Blurp—a fish very similar to the Cheep-Cheep that appears in Super Mario World, Yoshi's Story, and Super Princess Peach.
• Bobbery—a retired admiral Bomb-omb who allied with Mario in Paper Mario: The Thousand-Year Door
• Bob-omb—a living bomb creature that appears in Super Mario Bros. 2, Super Mario Bros. 3, Super Mario World, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Yoshi's Story, Paper Mario, Super Mario Sunshine, Mario Kart: Double Dash!!, Mario and Luigi: Superstar Saga, Mario Pinball Land, Paper Mario: The Thousand-Year Door, Mario & Luigi: Partners in Time, Mario Superstar Baseball, Dance Dance Revolution: Mario Mix, the Mario Party series, and Mario Kart DS.
• Bob-omb Buddy—pink, friendly Bob-ombs that appear in Super Mario 64, Paper Mario, and Mario Party Advance.
• Bob-Ulk—the strongest of the Bob-Ombs. Found near the bottom of the Pit of 100 Trials in Paper Mario: The Thousand-Year Door
• Bombette—a pink Bob-Omb that allied with Mario in Paper Mario.
• Bombshell Bill—golden, exploding Bullet Bills that appear in Paper Mario and Paper Mario: The Thousand-Year Door.
• Bone Dragon—an undead, fire-breathing dragon that appears in Yoshi's Story.
• Bonetail—a large skeletal dragon that lives in the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
• Bony Beetle—a skeletal turtle-like creature with a spiked shell, which it hides in. Appears in Super Mario World and Paper Mario.
• Boo (or "Boo" Diddly or "Boo" Buddy) —a ghost that appears frequently in Mario games, debuting in Super Mario Bros. 3 and appearing in most of the games in the series since.
• Boo Balloon—a balloon-like Boo that puffs up when Mario looks at it, but deflates when he looks away from it, in New Super Mario Bros..
• Boo Blah—a stretchy, crawling ghost enemy in Super Mario World 2: Yoshi's Island..
• Boo Guy—ghostly Shy Guys that appear in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Luigi's Mansion, and Mario & Luigi: Partners in Time.
• Boo Man Bluff—a blindfolded Boo that appears in Super Mario World 2: Yoshi's Island and Yoshi's Story.
• Bookend—a haunted book enemy with teeth that attacks Mario in the Big Boo's Haunt level of Super Mario 64.
• Boolossus—a massive, monstrous Boo, made up of many smaller Boos, who appears as a boss in Luigi's Mansion.
• Boom Boom—a recurring boss who guards fortresses in Super Mario Bros. 3.
• Boomer—a boss and guardian of Exor in Super Mario RPG: Legend of the Seven Stars.
• Boomerang Brothers—boomerang throwing versions of the Hammer Brothers in Super Mario Bros. 3, Mario & Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, New Super Mario Bros., and Mario Superstar Baseball.
• Booster—a boss with his own amusement tower in Super Mario RPG: Legend of the Seven Stars.
• Bootler—Lady Bow's loyal and admiring Boo butler. He is first seen in Paper Mario, but he makes a cameo appearance in Paper Mario: The Thousand-Year Door, along with Lady Bow after Mario and co. defeat the Shadow Queen.
• Bopping Toady—a hopping toad that attacks with its tongue in Super Mario Land 2: 6 Golden Coins.
• Border Bros.—these two guard the border of the Mushroom Kingdoom and Beanbean Kingdom with several "border hopping" games, in Mario & Luigi: Superstar Saga.
• Boshi-a blue Yoshi with a bad attitude in Super Mario RPG: Legend of the Seven Stars
• Boss Bass—a giant fish, and male counterpart to Big Bertha, that chases Mario and attempts to swallow him whole; appears in Super Mario Bros. 3, Super Mario RPG: Legend of the Seven Stars and Super Mario 64.
• Bow—see Lady Bow
• Bowletta—the form Cackletta takes on after possessing Bowser in Mario and Luigi: Superstar Saga.
• Bowling Goonie—an obese and flightless goonie who can't help but roll along in Super Mario World 2: Yoshi's Island.
• Bowser—the main villain and usual final boss of the series; debuted in Super Mario Bros. and has appeared in most of Mario's games since (with a few notable exceptions, such as Super Mario Bros. 2). Also known as King Koopa.
• Bowser Jr.—Bowser's son that appears in Super Mario Sunshine, Mario Kart: Double Dash!!, Mario Golf: Toadstool Tour, Mario Power Tennis, Mario Superstar Baseball, and New Super Mario Bros..
• Bowyer—an arrow-flinging boss in the woods of Super Mario RPG: Legend of the Seven Stars.
• Box Boy—a treasure chest enemy and palette swap of Chester, Hidon, and Pandorite that appears in Super Mario RPG: Legend of the Seven Stars.
• Brighton—a sun-like character that appears in Mario Party 6.
• Broozer—a ghost enemy that punches with boxing gloves in New Super Mario Bros..
• Bub-Ulb—plant-like creatures that appear in Paper Mario and Paper Mario: The Thousand-Year Door.
• Bubba—a huge Cheep-Cheep that swallows Mario whole in Super Mario 64.
• Bubble Dayzee—a Crazee Dayzee that blows bubbles in Super Mario World 2: Yoshi's Island.
• Bubbles—an eccentric Beanbean who founded the Chuckola Cola company, in Mario & Luigi: Partners in Time.
• Bullet Bill—a propelled bullet that charges towards Mario; debuted in Super Mario Bros. and appears in Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario Land, Super Mario World, Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Yoshi's Story, Paper Mario, Super Mario Sunshine, Mario and Luigi: Superstar Saga, Mario & Luigi: Partners in Time, Super Princess Peach, New Super Mario Bros., Dance Dance Revolution: Mario Mix, Mario Pinball Land, the Mario Party series, Mario Kart DS, and as Bowser's pitch in Mario Superstar Baseball.
• Bully—a black, sphere-shaped monster with horns that tries to push Mario off of ledges in Super Mario 64; Bully is also the name of a small bull-like enemy in Mario & Luigi: Partners in Time.
• Bumpty—penguins that appear in Super Mario World 2: Yoshi's Island, Paper Mario, and Paper Mario: The Thousand-Year Door.
• Bunbun—a fly creature that drops spears in Super Mario Land.
• Bundt (or Raspberry) —a living cake boss in Super Mario RPG: Legend of the Seven Stars.
• Burt—a bouncy clown-like enemy that appears in Super Mario World 2: Yoshi's Island.
• Burt the Bashful—a giant Burt that is a boss in Super Mario World 2: Yoshi's Island.
• Buster Beetle—an aggressive counterpart to Buzzy Beetle that hurls boxes at the player; appears in Super Mario Bros. 3.
• Buzzar—a vulture boss that resides in Mt. Rugged in Paper Mario.
• Buzzer—a bee and palette swap of Stinger; appears in Super Mario RPG: Legend of the Seven Stars.
• Buzzy Beetle—a cave-dwelling, hard-shelled insect that debuted in Super Mario Bros. and has appeared in Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Paper Mario, Paper Mario: The Thousand-Year Door, and New Super Mario Bros..
• Bzzap!—a bee enemy that appears in Paper Mario.

C

• Cackletta—the main villainess in Mario and Luigi: Superstar Saga who attempts to steal Peach's voice.
• Cackletta's Ghost—the spirit of Cackletta which is imprisoned inside Bowletta's body in Mario and Luigi: Superstar Saga.
• Carroboscis—a giant carrot enemy that appears in Super Mario RPG: Legend of the Seven Stars.
• Cataquack—a large, billed creature that lunges at Mario and launches him skyward; similar to Plungelo, it appears in Super Mario Sunshine and Mario Kart: Double Dash!!.
• Chain Chomp—a furious but restrained enemy that debuted in Super Mario Bros. 3; it has appeared in most of the games in the series since.
• Chain Chomplet—a juvenile version of a Chain Chomp that appears in Super Mario Sunshine.
• Chargin' Chuck—a football-playing turtle that appears in Super Mario World.
• Charlieton—a chubby wandering salesman in Rogueport, who appears in Paper Mario: The Thousand-Year Door.
• Cheep-Cheep (or Blurp, or Goby) —a fish that debuted in Super Mario Bros. and has appeared in most of the games in the series since.
• Cheep-Chomp—a giant purple Cheep-Cheep that attempts to swallow Mario in New Super Mario Bros..
• Cheepskipper—a giant, monstrous Cheep-Cheep, boss of World 3 in New Super Mario Bros..
• Chef Torte—a cake-baking chef that appears as a boss in Super Mario RPG: Legend of the Seven Stars.
• Chef Torte's Apprentice—a boss in Super Mario RPG: Legend of the Seven Stars.
• Chester—a treasure chest enemy and palette swap of Box Boy, Hidon, and Pandorite that appears in Super Mario RPG: Legend of the Seven Stars.
• Chet Rippo-a strange bird-like character who raises one of Mario's stats, but lowers the other, in Paper Mario.
• Chewy—an aggressive, walking Piranha plant variant that appears in Super Mario RPG: Legend of the Seven Stars.
• Chicken—a flying bird that flys at Mario in Super Mario Land.
• Chief Chilly—a giant Chill Bully, with an icy moustache, that held Wario captive in Super Mario 64 DS; also appears in Mario Kart DS.
• Chikako (Glitter)—a strong floating barrier-like enemy in Super Mario Land.
• Chill Bully—an ice version of Big Bully that appears as a boss in Super Mario 64.
• Chomp Chomp—a variant of Chain Chomp that appears in Super Mario RPG: Legend of the Seven Stars.
• Chow—a mechanical dog that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of K-9.
• Chuck Quizmo—an inquisitive game show host worm that appears in Paper Mario.
• Chuckleroot—a large, gnarled tree, guarding the Chuckola Cola brewery in Chucklehuck Woods, in Mario & Luigi: Superstar Saga.
• Chuckolator-a living blob of Chuckola Cola with a wooden sword and shield, who is the boss of Chucklehuck Woods in Mario & Luigi: Superstar Saga.
• Chuckya—a large, purple ball-shaped enemy that grabs Mario and tosses him in Super Mario 64.
• Clawgrip—a crab-like boss that appears in Super Mario Bros. 2.
• Cleft—a stone, spiked creature with a large chin, hence its name; appears in Paper Mario and Paper Mario: The Thousand-Year Door.
• Clubba—a mace-wielding turtle that appears in Paper Mario.
• Cobrat—a snake creature that spits projectiles while hopping out of jars and the desert sand in Super Mario Bros. 2 and Mario Pinball Land.
• Coconutter—a hostile coconut enemy that wields spears in Mario & Luigi: Partners in Time.
• Commander Shroob—the boss of Star Hill in Mario & Luigi: Partners in Time.
• Coocoo—a chicken-like bird that flies in the air and drops goo in Super Mario Sunshine.
• Cortez—the dead spirit of a pirate who resides on Keelhaul Key with his vast amounts of treasure. Holder of the fifth Crystal Star in Paper Mario: The Thousand-Year Door.
• Crazee Dayzee—a living, walking flower that appears in Super Mario World 2: Yoshi's Island, Paper Mario, and Paper Mario: The Thousand-Year Door.
• Croco—a recurring, thieving crocodile boss that appears in Super Mario RPG: Legend of the Seven Stars.
• Crook—tiny thieves that steal from Mario's party in Super Mario RPG: Legend of the Seven Stars; palette swap of Sackit.
• Crowber—a crow enemy in New Super Mario Bros..
• Crusty—a crab creature in Super Mario RPG: Legend of the Seven Stars.
• Crystal King—a king who lives in the Crystal Palace, guarding the final Star Spirit, Kalmar in Paper Mario.
• Culex—a Final Fantasy-style hidden boss that appears in Super Mario RPG: Legend of the Seven Stars.
• Czar Dragon—a fiery dragon boss that protects the Barrel Volcano in Super Mario RPG: Legend of the Seven Stars.

D

• Dark Bones—a powerful, darkly colored Dry Bones that appears in Paper Mario: The Thousand-Year Door.
• Dark Boo—a purple, more-powerful Boo found in the painting at the Poshley Sanctum in Paper Mario: The Thousand-Year Door; also appears in the Gritzy Caves of Mario & Luigi: Partners in Time.
• Dark Bristle—a black, more powerful version of the Bristle that lives in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
• Dark Craw—an evil spearthrower. Goes under the name Craw-daddy at the Glitz Pit. Appears in Paper Mario: The Thousand-Year Door.
• Dark Koopa—a purple-shelled Koopa that lives in darkness. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.
• Dark Koopatrol—a Koopatrol with blue armor and red eyes. Goes under the name Koopinator in the Glitz Pit. Appears in Paper Mario: The Thousand-Year Door.
• Dark Lakitu—Lakitus that ride on a dark cloud and throw Sky-Blue Spinies instead of normal ones. Located in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
• Dark Paratroopa—a Dark Koopa with wings. Appears in Paper Mario: The Thousand-Year Door.
• Dark Puff—a monochrome Ruff Puff found in the Boggly Woods. Appears in Paper Mario: The Thousand-Year Door.
• Dark Wizzerd—the weakest of the half-organic, half-mechanic creatures. Resides in the Palace of Shadow. Appears in Paper Mario: The Thousand-Year Door.
• Darkly—an eerie young lad from Twilight Town who resides in Rogueport in Paper Mario: The Thousand-Year Door.
• Deep-Cheep—green Cheep-Cheeps, considerably more aggressive than the normal type, in New Super Mario Bros..
• Dino Rhino—a rhinoceros-like dinosaur enemy found in Super Mario World.
• Dizzy Dandy- flowerlike enemies foun in Yoshi's Island
• Dodo—Valentina's dense servant and a boss that appears in Super Mario RPG: Legend of the Seven Stars.
• Don Pianta—the Pianta syndicate leader in Rogueport that appears in Paper Mario: The Thousand-Year Door.
• Dolphin—a helpful creature that you can ride in the water in Super Mario World.
• Donkey Kong—the main character from the Donkey Kong arcade series; appears in the Mario Kart series, the Mario Tennis series, the Mario Golf series, the Mario Party series, Mario vs. Donkey Kong, Mario Superstar Baseball, and Super Mario Strikers.
• Donkey Kong Junior—a younger version of Donkey Kong from the Donkey Kong arcade series, appears in Super Mario Kart and Mario's Tennis.
• Doogan—a dog-like species introduced in Paper Mario and continued into Paper Mario: The Thousand-Year Door.
• Doopliss—a Duplighost boss that steals Mario's identity and appears in Paper Mario: The Thousand-Year Door. He joined forces with the Shadow Sirens after Vivian joined Mario's team. Until you figure out his name, he appears as "?????"
• Dorrie—a friendly Loch Ness Monster-esque dinosaur that appears in Super Mario 64, New Super Mario Bros., and the Mario Party series.
• Dr. Freezegood—a snowman enemy that appears in Super Mario World 2: Yoshi's Island.
• Dr. Mario—Mario as a physician; protagonist of the Dr Mario series.
• Dragonzamasu—a seahorse-like boss in the Muda Kingdom in Super Mario Land.
• Dry Bones—a collapsable Koopa Troopa skeleton that debuted in Super Mario Bros. 3 and has appeared in Super Mario World, Super Mario RPG: Legend of the Seven Stars, Paper Mario, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Mario & Luigi: Partners in Time, Super Princess Peach, New Super Mario Bros., Mario Superstar Baseball, Mario Party 7, and Mario Kart DS.
• Dull Bones—a weak Dry Bones that cannot reform itself. Appears in Paper Mario: The Thousand-Year Door.
• Duplighost—a ghost that can change its shape; appears in Paper Mario.
• Doppleganger-Mario and Luigi: Superstar Saga

E

• Earth Crystal—one of Culex's crystal bodyguards in Super Mario RPG: Legend of the Seven Stars.
• Eeker—a living beaker who fights with fire rods in Mario and Luigi: Superstar Saga.
• Eely-Mouth—an eel boss that pollutes Noki Bay in Super Mario Sunshine.
• Eerie—a ghostly dinosaur-like enemy in Super Mario World.
• Eggbert—the shell from whence Birdo pops in Super Mario RPG: Legend of the Seven Stars.
• Eggplant Man—a strange eggplant-like enemy from Wrecking Crew.
• Elder Shrooboid—the boss of Star Shrine in Mario & Luigi: Partners in Time.
• Electro Blooper—an electrically-charged Blooper found in Toad Town Tunnels in Paper Mario.
• Electrokoopa—an electric koopa who patrols mesh areas in Super Mario Sunshine.
• Elite Wizzerd—the strongest of the Wizzerds. Located near the bottom of the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
• Elite X-Naut—Highest-ranking X-Naut soldiers that appear in Paper Mario: The Thousand-Year Door. Unlike the X-Naut Grunt or PhD, this type of X-Naut wears a black uniform.
• Ella—one of the two main characters of Mario Golf: Advance Tour.
• Enigma—an assortment of clustered pig heads found in the Moleville Mines in Super Mario RPG: Legend of the Seven Stars; palette swap of Gorgon.
• Exor—the giant sword that crashes into Bowser's Castle in Super Mario RPG: Legend of the Seven Stars.
• Eyerok—two giant stone hands, with eyes embedded into their palms, that are a boss in Super Mario 64 and Mario Kart DS.
• Enefeld-Donkey Kong

F

• Factory Chief—the operator of the Smithy Factory in Super Mario RPG: Legend of the Seven Stars.
• Fang—A bat found in Super Mario World 2: Yoshi's Island and Super Princess Peach.
• Fawful—Cackletta's assistant that appears in Mario and Luigi: Superstar Saga and Mario & Luigi: Partners in Time.
• Fighter Fly—A fly in the NES port of Mario Bros.. Also appeared in Mario and Luigi: Superstar Saga and Mario Power Tennis.
• Fireball—a blue version of Sparky that appears in the castles of Super Mario RPG: Legend of the Seven Stars.
• Fire Brothers—a variant of the Hammer Brothers that spits fire and appears in Super Mario Bros. 3, Paper Mario: The Thousand-Year Door, Mario Superstar Baseball, and New Super Mario Bros..
• Fire Chomp—a floating Chomp which spits fire in Super Mario Bros. 3 and New Super Mario Bros..
• Fire Snake—a fiery "snake" made up of several Podoboos that appears in Super Mario Bros. 3, Mario Kart DS, and New Super Mario Bros..
• Fishbone—a skeleton of a dead fish found exclusively in Super Mario World.
• Fishin' Boo—a ghostly Lakitu that hangs in a cloud, dangling blue fire from a fishing pole; appears in Super Mario World and Super Princess Peach.
• Flamer Guy (or Pyro Guy) —A burning Shy Guy found Super Mario World 2: Yoshi's Island and Paper Mario.
• FLUDD (or Flash Liquizider Ultra Dousing Device)—a robotic device designed for shooting water that appears in Super Mario Sunshine and Mario Power Tennis.
• Flurrie—a cloud spirit who assists Mario in Paper Mario: The Thousand-Year Door.
• Flurry—an ice creature that appears in Super Mario Bros. 2.
• Fly—a hopping fly in Super Mario Land.
• Fly Guy—a Shy Guy with a propeller on its head that appears in Super Mario World 2: Yoshi's Island, Super Mario 64, Yoshi's Story, Mario & Luigi: Partners in Time, Mario Pinball Land, the Mario Party series, and Mario Power Tennis.
• Flying Wiggler (or Flutter)—a butterfly version of Wiggler. He turns a bright red after he gets stepped on, and appears in Super Mario World 2: Yoshi's Island, Mario Power Tennis, and the Mario Party series.
• Francesca—Don Pianta's daughter who fell in love with one of her father's mobsters in Paper Mario: The Thousand-Year Door.
• Frankie—one of Don Pianta's mobsters and Francesca's fiance who appears in Paper Mario: The Thousand-Year Door.
• Frogfucius—a wise old frog and Mallow's adopted father in Super Mario RPG: Legend of the Seven Stars; named after Confucius.
• Frogog—an anthromorphic frog creature that appears in Super Mario RPG: Legend of the Seven Stars.
• Frost Piranha—a Piranha Plant with ice powers. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.
• Fryguy—a giant fire boss that appears in Super Mario Bros. 2.
• Fuzzbush—A living bush that attacks with Fuzzies in Mario and Luigi: Superstar Saga.
• Fuzzy—a monster that hangs on tracks in Super Mario World; also appears in Paper Mario, Mario and Luigi: Superstar Saga, and Paper Mario: The Thousand-Year Door.
• Fwoosh—a cloud enemy that blows strong winds in Super Mario 64

G

• Game Guy—a gambling Shy Guy who challenges players to special mini-games in Mario Party 3.
• Ganchan—a rock that Mario can ride but can still crush him in Super Mario Land.
• Gao—a sphinx-like creature that stands still and shoots fireballs in Super Mario Land.
• Garf—a member of the Robbo gang in Paper Mario: The Thousand-Year Door.
• Geckit—a gecko enemy that appears in Super Mario RPG: Legend of the Seven Stars; a palette swap of Gecko.
• Gecko—a gecko enemy that appears in Super Mario RPG: Legend of the Seven Stars; a palette swap of Geckit.
• Geno—a mystical alien spirit inhabiting a toy doll that appears in Super Mario RPG: Legend of the Seven Stars.
• General Guy—a white Shy Guy that commandeers a toy tank in Paper Mario and guards Muskular, the fourth Star Spirit.
• Gira—a missile (similar to Bullet Bill) that shoots out of cannons in certain pipes in Super Mario Land.
• Gloomba—a dark version of a Goomba that is found underground. Appear in Paper Mario and Paper Mario: The Thousand-Year Door.
• Gloomtail—Hooktail's brother, one of the dragon siblings. Guards a key in the Palace of Shadow. Appears in Paper Mario: The Thousand-Year Door.
• Gnarantula—an odd spider-like enemy in Mario & Luigi: Partners in Time.
• Gold Koopeleon—a defensive Koopeleon that often flees from battle in Mario & Luigi: Partners in Time.
• Goomba (or Chibibo) —the very first enemy that appears in Super Mario Bros. and has appeared in most of Mario's games since.
• Goomba King (or Goomboss) —a giant Goomba boss that appears in Paper Mario, Super Mario 64 DS, and Mario Kart DS.
• Goombaria—Goombario's sister in Paper Mario.
• Goombario—a young Goomba that appears in Paper Mario.
• Goombella—a female Goomba that appears in Paper Mario: The Thousand-Year Door.
• Goomdiver—a Goomba that wears a scuba mask and attack underwater in Mario and Luigi: Superstar Saga.
• Gooper Blooper—a giant Blooper boss that appears in Super Mario Sunshine, Mario Power Tennis, and Super Princess Peach.
• Gourmet Guy-an extremely overweight Shy Guy that sports a bib and a spoon and fork in Paper Mario.
• Grate Guy—a boss and Casino owner in Super Mario RPG: Legend of the Seven Stars.
• Grindel—a mummified Thwomp in Super Mario 64.
• Grodus—leader of the X-Nauts. Plans to retrieve the Crystal Stars in order to open the Thousand-Year Door. Appears in Paper Mario: The Thousand-Year Door.
• Grodus X—a magical protector of Grodus that has the same characteristics as a Mini-Yux, only it's shaped as an X and not a triangle like a normal Mini-Yux. Grodus requires four Grodus Xs to create a barrier around him. Appears in Paper Mario: The Thousand-Year Door.
• Grubba—the announcer at the Glitz Pit in Paper Mario: The Thousand-Year Door.
• Grubby—a spiked slug in Super Mario Land 2: 6 Golden Coins.
• Guardian Shroob—a white Shroob that guards the Shroob Mother Ship in Mario & Luigi: Partners in Time.
• Guerilla—a giant ape reminiscent of Donkey Kong that chucks rocks at the player in Super Mario RPG: Legend of the Seven Stars.
• Gulpit—a fat purple creature that spits rocks at Mario in Paper Mario.
• Gunion—an octopus creature that lives in the water and splits into two if it's attacked in Super Mario Land.
• Gus—a member of the Robbo gang that blocks the east side of Rogueport and demands tolls of 10 coins in Paper Mario: The Thousand-Year Door.

H

• Hammer Brother—a helmeted turtle that throws hammers at Mario; it first appeared in Super Mario Bros. and has also appeared in Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Super Mario RPG: Legend of the Seven Stars, Paper Mario, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Mario & Luigi: Partners in Time, Super Princess Peach, New Super Mario Bros., Mario Superstar Baseball, Super Mario Strikers, Dance Dance Revolution: Mario Mix, and the Mario Party series.
• Hammerhead Brothers—a duo of rocky beings who can weld new hammers for Mario and Luigi in Mario and Luigi: Superstar Saga.
• Harhall—an artist of the Beanbean Kingdom who appears in Mario and Luigi: Superstar Saga.
• Hawkmouth—a bird head that comes alive after picking up a crystal inside Wart's castle and attacks the character in Super Mario Bros. 2.
• Heave-Ho—a mechanical wind-up creature that flings Mario into the air in Super Mario 64.
• Heavy Troopa—a fat Koopa Paratroopa that appears in Super Mario RPG: Legend of the Seven Stars.
• Heavy Zed—a helpful owl that Mario can ride in Super Mario Land 2: 6 Golden Coins.
• Hermie III—the boss of Gwarhar Lagoon in Mario and Luigi: Superstar Saga.
• Hidon—a treasure chest enemy and palette swap of Box Boy, Chester, and Pandorite that appears in Super Mario RPG: Legend of the Seven Stars.
• Hiyoihoi—a Ganchan-throwing stone creature and boss of Easton Kingdom in Super Mario Land.
• Honen—the skeleton of a Torion fish that hops vertically at Mario in Super Mario Land.
• Hooktail—a large red dragon from Paper Mario: The Thousand-Year Door, the boss guarding the first Crystal Star. Hates creatures that "start with Cr- and end with -icket".
• Hoopster—a ladybug creature that climbs up and down on vines in Super Mario Bros. 2.
• Hoo—a giant owl, boss of the Hoo's Woods world of Super Princess Peach.
• Hoohooros- a big live bird statue that appears in Mario and Luigi: Superstar Saga.
• Hoot—a sleepy owl that carries Mario to higher areas. (This character does not have a known official name, but is often referred to as Hoot). Appears in Super Mario 64 and Mario Party Advance.
• Hot Foot—a walking flame that usually fall off of candles in Super Mario Bros. 3.
• Hothead—a giant Sparky that appears in Super Mario World and Super Princess Peach.
• Huffin Puffin—a fat, white bird, whose hatchlings can be used as eggs by Yoshi, in Super Mario World 2: Yoshi's Island.
• Hoshi-Donkey Kong 3

I

• Ice Puff—a Ruff Puff which appears in frigid regions (for example, Fahr Outpost) of Paper Mario: The Thousand-Year Door.
• Ice Snifit—a Snifit that spits ice in Mario and Luigi: Superstar Saga.
• Iggy Koopa—one of Bowser's Koopalings that appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Il Piantissimo—a Pianta imposter that challenges Mario to races in Super Mario Sunshine. If you view his character model without his helmet, he looks like the Running Man from The Legend of Zelda: Ocarina of Time. This is a tiny easter egg that Nintendo added in, probably known only by the development team.
• Incoming Chomp—a Chain Chomp that leaps into the foreground and eats away the floor in Super Mario World 2: Yoshi's Island.
• Iron Cleft—a type of Cleft in the Glitz Pit from Paper Mario: The Thousand-Year Door that is invincible to any attack except to another Iron Cleft smashing against its body, like a diamond only being able to break another diamond.
• Ishnail—the leader of Rogueport's Robbo gang in Paper Mario: The Thousand-Year Door.
• Itsybitsy-Donkey Kong Jungle Fever

J

• Jabbi—enemies of the Punis who inhabit The Great Tree in Paper Mario: The Thousand-Year Door.
• Jabit—a green Drill Bit that runs Smithy's production line in Super Mario RPG: Legend of the Seven Stars.
• Jagger—an armored Koopa Troopa and apprentice of Jinx in Super Mario RPG: Legend of the Seven Stars.
• Jelectro—an electric jellyfish in Super Mario Bros. 3.
• Jester—a jester enemy in Super Mario RPG: Legend of the Seven Stars.
• Jinx—a martial arts expert in Super Mario RPG: Legend of the Seven Stars who challenges Mario to a few fights.
• Jojora-a boss who appeared along side an enemy you got to choose the name for (between three choices) in Mario and Luigi: Superstar Saga.
• Jolene—Grubba's manager who secretly assists Mario in Paper Mario: The Thousand-Year Door.
• Jonathan Jones—a shark boss in the sunken ship of Super Mario RPG: Legend of the Seven Stars who befriends Mario after being beaten.
• Jr. Troopa—a baby Koopa stuck in his eggshell who would appear six times and fight Mario and his teammates in Paper Mario. He eventually got a horn and some bat wings. He makes a cameo appearance in Paper Mario: The Thousand-Year Door.
• Junior Shrooboid—a giant green Shroob that follows E. Gadd's time machine into the present in Mario & Luigi: Partners in Time.

K

• K-9—a mechanical dog that appears in Super Mario RPG: Legend of the Seven Stars.
• Kab-omb—a Bob-omb-like enemy that is set off once fire touches it, from New Super Mario Bros..
• Kaboomba—a walking cannon which fires at the character in Super Mario World 2: Yoshi's Island and Super Princess Peach.
• Kamek-a Magikoopa, the main villain of Super Mario World 2: Yoshi's Island; also appears in Mario & Luigi: Superstar Saga and Mario & Luigi: Partners in Time.
• Kammy Koopa—a female Magikoopa that works for Bowser and often accompanies him (Bowser) everywhere he goes. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.
• Kent C. Koopa—a giant Koopa Troopa that blocks Pleasant Path in Paper Mario.
• King Boo—the head Boo who debuted as the final boss of Luigi's Mansion and appears in Super Mario Sunshine, Super Mario 64 DS, Mario Kart: Double Dash!!, Mario Superstar Baseball, Mario Kart DS, and Super Princess Peach.
• King Calamari—a giant squid boss that guards the Sunken Ship hold in Super Mario RPG: Legend of the Seven Stars.
• King K—a friendly minor-league fighter from Glitzville in Paper Mario: The Thousand-Year Door
• King Totomesu—a large sphinx boss of the Birabuto Kingdom that jumps and shoots fireballs in Super Mario Land.
• Klamber—a spider-like enemy that climbs on grates and fences in Super Mario Sunshine.
• Klepto—a large vulture, notorious for stealing Mario's hat in the Shifting Sand Land level of Super Mario 64. Also appears in Mario Golf: Toadstool Tour, Mario Pinball Land, and the Mario Party series.
• Knife Guy—a knife-juggling boss (and later friend of Mario) in Super Mario RPG: Legend of the Seven Stars.
• Koopa Clown Car—a mechanical, hovering creature used by Bowser; debuted in Super Mario World and also appears in Super Mario RPG: Legend of the Seven Stars, Paper Mario, and Paper Mario: The Thousand-Year Door.
• Koopa Kids (or Koopalings) —eight unique children of Bowser that appear in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga, with the exception of Bowser Jr., who appears in Super Mario Sunshine. Their names are Larry/Cheatsy Koopa, Morton Jr./Big Mouth Koopa, Wendy O./Kootie Pie Koopa, Lemmy/Hip Koopa, Roy/Bully Koopa, Ludwig/Kooky Von Koopa, Iggy/Hop Koopa and Bowser Jr.
• Koopa Paratroopa (or Koopa Para-Troopa) —a flying variant of the Koopa Troopa that debuted in Super Mario Bros., and has appeared in most of the games in the series since.
• Koopa Troopa—a common, hard-shelled, turtle-like enemy that debuted in Super Mario Bros., and has appeared in most of the games in the series since.
• Koopatrol—a powerful, armor clad Koopa who works for Bowser. Appears in Paper Mario and Paper Mario: The Thousand-Year Door and Mario Pinball Land.
• Koopeleon—primeval, chameleon-like Koopas of the Toadwood Forest that appear in Mario & Luigi: Partners in Time.
• Kooper—a Koopa Troopa from Koopa Village. Allied with Mario in Paper Mario.
• Koopie Koo—Koops' girlfriend that resides in Petalburg in Paper Mario: The Thousand-Year Door.
• Koops—a green-shelled Koopa Troopa which joins Mario's party in Paper Mario: The Thousand-Year Door.
• Kumo—a hopping spider creature that appears in Super Mario Land.
• Kylie Koopa—A Pink-Shelled Freelance Photojournalist for the Koopa Khronicle. She helps the Mario Bros. in Mario & Luigi: Partners in Time
• Kanon-Mario Bros.

L

• Lady Bow—a Boo princess that allies with Mario in Paper Mario. She and Bootler take a vacation in Poshley Heights after Mario and his teammates defeat the Shadow Queen in Paper Mario: The Thousand-Year Door.
• Lady Lima—castle advisor to Queen Bean in Mario and Luigi: Superstar Saga.
• Lahla—one of the Boo sisters that runs the Pianta Parlor in Paper Mario: The Thousand-Year Door.
• Lakipea—the Beanbean Kingdom's version of Lakitu who throws Sharpeas in Mario and Luigi: Superstar Saga.
• Lakilester—a Lakitu that allied with Mario after a fight in Paper Mario. Most people know him by his nickname "Spike", especially Huff N. Puff.
• Lakilulu—Lakilester's girlfriend who appears in Paper Mario.
• Lakithunder—a shades-wearing Lakitu riding a thunder cloud, boss of World 7 in New Super Mario Bros..
• Lakitu—a turtle-like creature that usually hangs in a cloud, often throwing Spinys down at Mario, and which debuted in Super Mario Bros. and has appeared in most of the games in the series since.
• Lantern Ghost—a small ghost-like creature that carries a lantern. Appears in Super Mario World 2: Yoshi's Island and Mario Party Advance; a giant one appeared in Paper Mario and goes by the name Big Lantern Ghost.
• Larry Koopa—one of Bowser's Koopalings who appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Laser Snifit—a Snifit that shoots lasers in Mario and Luigi: Superstar Saga.
• Lava Bud—miniature Piranha Plants that stem from Lava Piranha in Paper Mario.
• Lava Lotus—a fire-spewing flower who appears in Super Mario Bros. 3, Super Mario World, and Super Princess Peach.
• Lava Piranha—A huge piranha that lies within the confines of Mount Lavalava and guards Misstar, the fifth Star Spirit in Paper Mario.
• Lemmy Koopa—one of Bowser's Koopalings who appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Lil' Sparky—a tiny version of Sparky that appears in Super Mario World and Super Princess Peach.
• Lord Crump—a high-ranking second-in-command X-Naut that works for Sir Grodus who appears in Paper Mario: The Thousand-Year Door.
• Ludwig Von Koopa—one of Bowser's Koopalings who appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Luigi—Mario's brother, and very often the second player in two player games. He first appeared in Mario Bros. and has been in most Mario games since, with notable exceptions such as Super Mario RPG: Legend of the Seven Stars and Super Mario 64. Luigi is the star of Mario Is Missing! and Luigi's Mansion, in both of which his objective is to find and rescue his brother Mario.

M

• M. Bush—an enemy that disguises itself as a harmless bush in Paper Mario.
• Ma Mole—mother of the mole children, Dyna & Mite, in Super Mario RPG: Legend of the Seven Stars.
• Macho Grubba-The form of Grubba after being powered up by the third Crystal Star. Chapter 3 Boss in Paper Mario: The Thousand-Year Door.
• Mack—a spring boss in Super Mario RPG: Legend of the Seven Stars.
• Mad Piano—a haunted piano with teeth that attacks Mario in the Big Boo's Haunt level of Super Mario 64.
• Magikoopa—a robed turtle magician that debuted in Super Mario World and has appeared in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Paper Mario, Mario and Luigi: Superstar Saga, Super Princess Peach, and Mario Superstar Baseball; was slated to appear in Mario Kart 64 but was replaced by Donkey Kong before the final release.
• Magmite—a cave creature in Super Mario RPG: Legend of the Seven Stars.
• Magnus 2.0—a souped-up version of Magnus Von Grapple. Holds the seventh Crystal Star in Paper Mario: The Thousand-Year Door.
• Magnus Von Grapple—a large mechanical suit piloted by Lord Crump. Holder of the second Crystal Star in Paper Mario: The Thousand-Year Door.
• Mallow—a marshmallow-like character found early in Super Mario RPG: Legend of the Seven Stars.
• Manta—an unnamed manta ray that appears in Super Mario 64 and the Mario Party series.
• Marilyn—Beldam and Vivian's sister and the toughest of the Shadow Sirens, judging by her size, in Paper Mario: The Thousand-Year Door. Her catchprase is "Guh", which is the only word she says all the time.
• Mario—the main hero of the series, debuting in Donkey Kong as "Jumpman" and first appearing as "Mario" in Mario Bros.
• Mecha Bowser—a giant, mechanical version of Bowser that appears in Paper Mario, Super Mario Sunshine, and Mario Power Tennis. Goes by the name "Bowser???" in Paper Mario.
• Mechakoopa—a mechanical toy Koopa used to pelt Bowser's Koopa Clown Car in Super Mario World; also appears in Super Mario RPG: Legend of the Seven Stars, and the Mario Party series.
• Megasmilax—a giant Piranha plant boss in Super Mario RPG: Legend of the Seven Stars.
• Mekabon—a robot that attacks with its head in Super Mario Land.
• Merlon—a wizard who assists Mario and his partners in Paper Mario and Paper Mario: The Thousand-Year Door.
• Micro-Goomba—a tiny Goomba, usually found around larger Goombas and in groups; originally from Super Mario Bros. 3, they have also appeared in Super Mario RPG: Legend of the Seven Stars, Super Mario 64, and New Super Mario Bros..
• Mini-Fry Guy—one of several creatures that breaks off from the larger Fryguy in Super Mario Bros. 2.
• The Mini-Yuxes—The spawn of the Yuxes. They come in three forms: Mini-Yux, Mini-X-Yux, and Mini-Z-Yux. They create a shield around their respective Yux. They only appear in Paper Mario: The Thousand-Year Door
• MIPS—the armless yellow rabbit that appears in the basement of Peach's Castle in Super Mario 64.
• Mom Piranha- A giant Piranha Plant that will hatch out of an egg and fight along side two regular piranha plants in the BeanBean Airport in Mario and Luigi: Superstar Saga.
• Moneybags—an enemy that disguises itself as a coin, but is actually a small frog-like creature, in Super Mario 64 and New Super Mario Bros..
• Monstermama—a friendly toadstool creature in Super Mario RPG: Legend of the Seven Stars.
• Monty Mole—a mole enemy that appears in Super Mario World, Super Mario 64, Mario Kart 64, Super Mario Sunshine, Mario & Luigi: Superstar Saga, Mario & Luigi: Partners in Time, New Super Mario Bros., Mario Pinball Land, Mario Superstar Baseball, Mario Kart DS, and the Mario Party series.
• Morton Koopa Junior—one of Bowser's Koopalings that appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Mouser—a large mouse boss that appears in Super Mario Bros. 2 and Mario Party Advance.
• Mr. Blizzard—a snowman enemy that throws snowballs in Super Mario 64, Mario Pinball Land and the Mario Party series.
• Mr. I—a giant eyeball that appeared in Super Mario 64 and the Mario Party series.
• Mr. Kipper—a fish in Super Mario RPG: Legend of the Seven Stars.
• Ms. Mowz—a badge hunter who joins Mario on his quest in Paper Mario: The Thousand-Year Door after Mario gets a badge found in Hooktail's suite.
• Mummipokey—a mummified Pokey, boss of World 2 in New Super Mario Bros..
• Muncher—a small, invincible Pirana Plant-like enemy in Super Mario Bros. 3

N

• Neil—one of the two main characters of Mario Golf: Advance Tour.
• Ninjakoopas—otherwise known as the Koopa Bros. Their names, according to the colors of their shells and ninja gear, are Red, Black, Yellow and Green. They guard the first Star Spirit, Eldstar, in Paper Mario.
• Ninji—a star-like creature that appears in Super Mario Bros. 2, Super Mario World, Paper Mario, and Mario Party Advance. In Super Mario Bros. 2, "Ninji 1" will chase the player, while "Ninja 2" will stay in place and hop repeatedly.
• Nipper Plant (also known as Chompweed or Walking Piranas) —a white plant that leaps upward to bite Mario. It may stay motionless or walk around, and even spit fire. Nipper plants debuted in Super Mario Bros. 3 and also appeared in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Yoshi's Story, and Super Princess Peach.
• Noki—friendly, crab-like creatures that converse with Mario in Super Mario Sunshine. Also appear in Mario Superstar Baseball, and in Mario Kart: Double Dash!! as background characters.
• Nokobon (or Noko Bombette) —a Koopa-esque creature that explodes after it's jumped on in Super Mario Land and Super Mario Land 2: 6 Golden Coins.
• Nyololin—a fire spitting snake that appears in Super Mario Land.

O

• Oaklie—a tree-like denizen of the Forever Forest that appears in Paper Mario.
• Octolot—an octopus creature wielding winged Koopa shells that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Octovader.
• Octovader—palette swap of Octolot that appears in Super Mario RPG: Legend of the Seven Stars.
• Oho Jee-a blue or red mushroomed-shaped inhabiter of the Oho Oasis. Speaks like "Me Oho Jee. Me happy"Mario and Luigi: Superstar Saga.
• Ostro—a running ostrich that appears in Super Mario Bros. 2.

P

• Plum-A person who was not that important so they replaced her with Daisy. The only games that she was in were Mario Golf and Mario Tennis
• Pa Mole—father of the mole children, Dyna & Mite, in Super Mario RPG: Legend of the Seven Stars.
• Pale Piranha—a colorless Piranha Plant found in the Boggly Woods of Paper Mario: The Thousand-Year Door.
• Pandorite—a treasure chest enemy and palette swap of Box Boy, Chester, and Hidon that appears in Super Mario RPG: Legend of the Seven Stars.
• Panser—a plant that walks or remains stationary while spitting fire in Super Mario Bros. 2.
• Para-Beetle (or Parabuzzy) —an airborne Buzzy Beetle which can be ridden in Super Mario Bros. 3. Also appears in Paper Mario: The Thousand-Year Door.
• Paragoomba (or Para-Goomba) —a flying Goomba, some of which spout Mini-Goombas, that debuted in Super Mario Bros. 3 and has appeared in Super Mario World, Super Mario Land 2: 6 Golden Coins, Paper Mario, Paper Mario: The Thousand-Year Door, Super Princess Peach, New Super Mario Bros., and Mario Superstar Baseball.
• Parakarry—a Koopa Paratroopa that allied with Mario in Paper Mario and delivers the letter in the beginning of Paper Mario: The Thousand-Year Door.
• Pauline—Mario's girlfriend in the Donkey Kong arcade game; often confused with Princess Toadstool.
• Pea—Lady Lima's assistant in Mario & Luigi: Superstar Saga.
• Penguins—nameless penguins that appear in numerous Mario games, including Super Mario 64, Mario Kart 64, the Mario Party series, and Mario Pinball Land.
• Perry—a talking umbrella that aids Princess Peach on her journey in Super Princess Peach.
• Petey Piranha—a giant, goo-spouting Piranha Plant boss that appears in Super Mario Sunshine as well as Mario Golf: Toadstool Tour, Mario Kart: Double Dash!!, Mario Power Tennis, Mario Superstar Baseball, Mario & Luigi: Partners in Time, Super Princess Peach, and New Super Mario Bros..
• Phanta Manta—a giant, paper-thin manta silhouette that spreads goop all over Sirena Beach and causes Hotel Delfino to sink into the earth in Super Mario Sunshine.
• Phanto—a floating mask that guards keys in Super Mario Bros. 2.
• Pianta—a species of friendly characters that debuted in Super Mario Sunshine and have also appeared in Mario Kart: Double Dash!!, Paper Mario: The Thousand-Year Door, Mario Power Tennis, Mario Superstar Baseball, and Mario Kart DS.
• Il Piantissimo -a human character that appears only in Super Mario Sunshine bearing a strange costume that looks like a pink Pianta. You race him in a few levels for Shine Sprites. He has identical jumping abilities as Mario and runs an identical speed.
• Pider—a spider-like enemy that is found in the Great Tree in Boggly Woods and the Punies just can't stand this creature. Appears in Paper Mario: The Thousand-Year Door
• Pidgit—a carpet-riding bird that appears in Super Mario Bros. 2 and Mario & Luigi: Partners in Time, and as "Pidget Bill" in Super Mario World.
• Pionpi—a hopping ninja-like enemy in Super Mario Land.
• Piranha Plant (or Pakkun Flower, or Jumpin' Piranha Plant) —a common Mario enemy that usually appears extending (or jumping) from a pipe. It debuted in Super Mario Bros. and has appeared in most of the games in the series since.
• Plungelo—a large creature that has plungers for feet, which it uses to walk on mirrors; similar to Cataquack, it appears in Super Mario Sunshine.
• Podoboo—a lava ball that appears in Super Mario Bros., Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Super Mario Kart, Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Yoshi's Story, Super Princess Peach, New Super Mario Bros., Dance Dance Revolution: Mario Mix, and the Mario Party series.
• Poison Pokey— also called a Pokey Mummy in Paper Mario. A poisonous Pokey in Paper Mario and Paper Mario: The Thousand-Year Door that looks like a Pokey, but is blue and poisons Mario on contact.
• Poison Puff—a poisonous Ruff Puff that is located near the bottom of the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
• Pokey—a cactus-like enemy that debuted in Super Mario Bros. 2, and appears in Super Mario World, Super Mario World 2: Yoshi's Island, Super Mario 64, Paper Mario, Super Mario Sunshine, the Mario Party series, Mario Kart: Double Dash!!, Mario Pinball Land, Paper Mario: The Thousand-Year Door, Mario Kart DS, Mario & Luigi: Partners in Time, Super Princess Peach, and New Super Mario Bros..
• Pompon Flower—a plant that shoots poison in Super Mario Land.
• Popple-a thief that appeared frequently in Mario and Luigi: Superstar Saga.
• Ptooie—a Pirana Plant that walks around or stays in pipes and blows a spiked ball in Super Mario Bros. 3.
• Porcupo—a porcupine creature with spines on its back in Super Mario Bros. 2.
• Prince Peasley-the Prince of the Beanbean Kingdom, as seen in Mario & Luigi: Superstar Saga. He is a very vain person, but also brave. His mother is Queen Bean. He is green. Was turned into a dragon-like creature near the beginning of the game.
• Princess Daisy—Mario's love interest in Super Mario Land, but now the main love of Luigi, and has appeared in many sports and party Mario games. She is the ruler of the desert kingdom, Sarasaland.
• Princess Peach (or Princess Toadstool) —Mario's main love interest, debuting in Super Mario Bros. and appearing in most of Mario's games since. She is the ruler of the Mushroom Kingdom.
• Princess Shroob - The leader of the Shroobs, and the final boss of Mario & Luigi: Partners in Time.
• Professor E. Gadd—the mad scientist and inventor who debuted in Luigi's Mansion and has appeared in Mario and Luigi: Superstar Saga, Mario Party 6, and Mario & Luigi: Partners in Time, as well as being alluded to in Super Mario Sunshine and Mario Party Advance, by way of his inventions.
• Puffy Squid—a squid-like enemy that turns into a platform, when sprayed at by FLUDD, in Super Mario Sunshine.
• Punchinello—a bomb-happy cave boss in Super Mario RPG: Legend of the Seven Stars.
• Putrid Piranha—a variant of the Piranha Plant that can poison with its bite. Appears in Paper Mario: The Thousand-Year Door.

Q

• Queen Bean—ruler of the Beanbean Kingdom in Mario and Luigi: Superstar Saga. She is a large, hulking woman and mother to Prince Peasley
• Queen Nimbus—Mallow's mother and the queen of Nimbus Land in Super Mario RPG: Legend of the Seven Stars.
• Queen Valentina
• Qecheu-Super Mario Fushigi no Korokoro party 2

R

• Rawk Hawk—the champion of the Glitz Pit when you first enter in Paper Mario: The Thousand-Year Door. His catchphase is, "Feel the RAWWWWWWWWWWK!"
• Rat Funk—a sewer rat that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Alley Rat.
• Ratooey—a rat-like species that appeared in Paper Mario: The Thousand-Year Door.
• Red Goomba—a palette swap of a regular Goomba that pesters Mario in Paper Mario along with his brother Blue Goomba.
• Rex—a purple dinosaur that appears in Super Mario World, Mario & Luigi: Superstar Saga, and Super Princess Peach.
• Reznor—a large, grey, fire-breathing dinosaur that appears in groups in Super Mario World.
• Rip Van Fish—a sleeping underwater enemy that awakens and attacks when Mario swims by. Appears in Super Mario World.
• R.O.B.—a secret kart in Mario Kart. Appears in Mario Kart DS.
• Robirdo—a robotic version of Birdo who only appears in the Super Mario Advance version of Super Mario Bros. 2.
• Rocky Wrench—an enemy who pops out of the ground and throws wrenches in Super Mario Bros. 3; also appears in Mario Kart DS.
• Roger the Potted Ghost—a ghost boss who emerges from a pot in Super Mario World 2: Yoshi's Island.
• Roketon—an enemy who flies an airplane in Super Mario Land.
• Rookie-The name Bowser took on briefly in Mario & Luigi: Superstar Saga.
• Rotodisc—a rotating object in castles in Super Mario Bros. 3.
• Rowf—a doogan who is the owner of Toad Town's badge shop in Paper Mario.
• Roy Koopa—one of Bowser's Koopalings that appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Ruff Puff—a cloud enemy that attacks by ramming and lightning strikes. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.

Roger Jr.-Super Mario Fushigi no Janjan Land

S

• Sackit—tiny thieves that steal from Mario's party in Super Mario RPG: Legend of the Seven Stars; palette swaps of Crooks.
• Salvo the Slime—a giant Lemon Drop boss in Super Mario World 2: Yoshi's Island. Also appears in Mario Party Advance.
• Scuttlebug—a spider-like creature in Super Mario 64, New Super Mario Bros., and Mario Party 7.
• Seedy Pod—a plant creature that burrows into the ground and tosses rocks at Mario in Super Mario Sunshine.
• Shadow Mario—the recurring antagonist in Super Mario Sunshine. Was revealed to be Bowser Jr. in disguise in Pinna Park episode 1: "Mecha-Bowser appears!"; also appears as a playable character in Mario Golf: Toadstool Tour.
• Shadow Queen—a thousand year-old demon who is awakened by Grodus in Paper Mario: The Thousand-Year Door.
• Shady Koopa—a blue-shelled Koopa Troopa with a grey-looking face that can attack after its shell has been flipped. They have a place of honor in the Koopa Family Tree because of the way they look. Appears in Paper Mario: The Thousand-Year Door.
• Shady Paratroopa—a Shady Koopa with wings. Appears in Paper Mario: The Thousand-Year Door.
• Shaman—a mysterious, hooded creature that appears in Super Mario RPG: Legend of the Seven Stars, Paper Mario, and Paper Mario: The Thousand-Year Door.
• Sharpea-the Beanbean Kingdom's version of Spiny who appears in Mario and Luigi: Superstar Saga.
• Shroob- an alien mushroom monster species that appears in Mario & Luigi: Partners in Time.
• Shrowser- the form Bowser takes on after being possesed by Princess Shroob near the end of Mario and Luigi: Partners in Time.
• Shy Guy—a common, masked enemy that debuted in Super Mario Bros. 2; it has since appeared in many incarnations in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Yoshi's Story, Paper Mario, Paper Mario: The Thousand-Year Door, Mario & Luigi: Superstar Saga, Mario & Luigi: Partners in Time, Mario Pinball Land, the Mario Kart series, the Mario Tennis series, the Mario Party series, Mario Pinball Land, and Mario Superstar Baseball.
• Shyster—a Shy Guy-derivative enemy in Super Mario RPG: Legend of the Seven Stars.
• Sidestepper—a crab that appears in Mario Bros., Super Mario Bros. 3, Mario Power Tennis, and Mario Kart DS.
• Sir Swoop—a Swooper seen in the Glitz Pit Minor League in Paper Mario: The Thousand-Year Door.
• Skeeter—a water strider-like creature that appears in Super Mario 64 and New Super Mario Bros..
• Skeleton Bee—a bee that will come back to life after Mario jumps on it in Super Mario Land 2: 6 Golden Coins.
• Sledge Brothers—giant versions of the Hammer Brothers who shake the ground when they jump in Super Mario Bros. 3 and New Super Mario Bros..
• Sling Guy—a variant of Shy Guy that appears in Super Mario RPG: Legend of the Seven Stars.
• Smilax—a Piranha plant-like enemy that appears in Super Mario RPG: Legend of the Seven Stars.
• Smithy—the main villain and final boss of Super Mario RPG: Legend of the Seven Stars.
• Smorg—small, black creatures that band together to create a large monster. They kidnap all the passengers of the Excess Express in Paper Mario: The Thousand-Year Door.
• Snifit—a masked, projectile-spitting creature that debuted in Super Mario Bros. 2. In several incarnations it has also appeared in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, the Mario Party series, and numerous variations in Mario and Luigi: Superstar Saga and Mario & Luigi: Partners in Time.
• Snailicorn—an odd snail-like enemy with a single horn that appears in New Super Mario Bros..
• Snooza Koopa—a large Koopa that wears a Yoshi's eggshell as a disguise in Super Mario Sunshine.
• Snow Spike—a snowball-throwing Spike that appears in New Super Mario Bros..
• Snufit—a floating variation on Snifit that appears in Super Mario 64.
• Spania—a Spinia with spikes protruding from its top. Appears in Paper Mario: The Thousand-Year Door.
• Spark (or Sparky) —a ball of fire that appears in Super Mario Bros. 2, Super Mario World, Super Mario RPG: Legend of the Seven Stars, Mario and Luigi: Superstar Saga, and Super Princess Peach
• Spear Guy—a savage Shy Guy that wields a spear and shield, and appears in Super Mario World 2: Yoshi's Island, Mario Party Advance, and Mario Power Tennis.
• Spike—a turtle-like creature that spits up spiked balls and throws them in Super Mario Bros. 3, Super Mario World 2: Yoshi's Island, Yoshi's Story, and Super Princess Peach.
• Spike Bass—a large, spiked fish enemy that leaps out of the water at Mario, in New Super Mario Bros..
• Spiked Fun Guy—a small cactus-like enemy that appears in Super Mario World 2: Yoshi's Island.
• Spikester—a spiked creature related to Spiny; appears in Super Mario RPG: Legend of the Seven Stars.
• Spike Top—a Buzzy Beetle with a spike on its shell that appears in Super Mario World, Paper Mario, Paper Mario: The Thousand-Year Door, and Super Princess Peach.
• Spikey—a spiked creature that rolls into a ball in Super Mario Land 2: 6 Golden Coins. It is unrelated to Spiny, who is another Mario enemy who is sometimes called Spikey as well.
• Spindrift—an odd creature with a flower-like propeller on its head that, once Mario stomps on it, causes him to fly into the air and spin for a short time. Appears in Super Mario 64.
• Spinia—an unknown creature made of thin, papery boards. Appears in Paper Mario: The Thousand-Year Door.
• Spiny (or Spikey) —a spiked turtle-like enemy that appears in Super Mario Bros., Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Paper Mario, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Super Princess Peach, New Super Mario Bros., Dance Dance Revolution: Mario Mix, Mario Pinball Land, and the Mario Party series.
• Splunkin—small pumpkin-like enemies in the ghost houses of New Super Mario Bros..
• Spunia—a much more powerful version of the Spania. Appears in Paper Mario: The Thousand-Year Door.
• Spy Guy—a variant of Shy Guy that hids in bushes and uses either a hammer or a slingshot. Appears in Paper Mario.
• Squeek—a tiny mouse that appears in Super Mario World 2: Yoshi's Island, Paper Mario, Mario Kart: Super Circuit, Mario Party Advance, and Paper Mario: The Thousand-Year Door.
• Squiggler—a tiny, worm-like Wiggler that hides in pipes, in New Super Mario Bros..
• Stinger—a bee and palette swap of Buzzer; appears in Super Mario RPG: Legend of the Seven Stars.
• Stretch—a Boo ghost that lives on the floor in Super Mario Bros. 3.
• Strollin' Stu—a small clown-like enemy, the equivalent of the Goomba in Super Mario Sunshine.
• Sumo Brother—a sumo version of the Hammer Brothers that stomp the ground and create lightning bolts in Super Mario World.
• Super Koopa—a Koopa Troopa that wears a magic cape and can fly in Super Mario World.
• Super Team-a robot created by Bowser in Super Mario Strikers.
• Super Thwomp- A Giant Twhomp that crashes down on you in New Super Mario Bros.
• Sushi—a shark enemy that appears in Super Mario 64, New Super Mario Bros., and the Mario Party series.
• Sushie—a Cheep-Cheep allied with Mario in Paper Mario.
• Suu—a spider that attacks from above in Super Mario Land.
• Swampire—the strongest of the Swoopers. A feared health-sucking Swooper that lives near the bottom of the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
• Swooper—a bat enemy in Super Mario World, Super Mario 64, Paper Mario, Paper Mario: The Thousand-Year Door, and New Super Mario Bros..
• Swoopin' Stu—a paint-blob enemy that appears in Super Mario Sunshine.
• Swoopula—a more powerful version of the Swooper. It appears mostly in palaces. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.

T

• Tamao—an indestructible blob creature that guards Dragonzamasu in Super Mario Land.
• Tanoomba—a Goomba dressed in a Tanooki Suit in Mario and Luigi: Superstar Saga and Mario & Luigi: Partners in Time.
• Tatanga the Mysterious Spaceman—the final boss of Super Mario Land and a regular boss in Super Mario Land 2: 6 Golden Coins.
• TEC-XX—the main computer in the X-Naut HQ in Paper Mario: The Thousand-Year Door.
• Terra Cotta—an armored Koopa that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Terrapin.
• Terrapin—armored Koopa Troopas that appear in Super Mario RPG: Legend of the Seven Stars; palette swap of Terra Cotta.
• Thunder Lakitu—an orange Lakitu that fires bolts of lightning and appears in Super Mario World 2: Yoshi's Island and Mario Power Tennis.
• Thwimp—a miniature version of Thwomp that appears in Super Mario World.
• Thwomp—a large granite creature that debuted in Super Mario Bros. 3 and has appeared in Super Mario World, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, the Mario Kart series, the Mario Party series, Mario Golf: Toadstool Tour, Mario and Luigi: Superstar Saga, Mario Pinball Land, Paper Mario: The Thousand-Year Door, Mario Superstar Baseball, Mario & Luigi: Partners in Time, and Super Princess Peach
• Toad—the ever-helpful humanoid mushroom that debuted in Super Mario Bros., and has appeared in virtually every game in which Mario does.
• Toadette—a female derivative of Toad who appears in Mario Kart: Double Dash!!, Mario Party 6, Mario Party 7, Paper Mario: The Thousand-Year Door, Mario Party Advance, Mario Superstar Baseball, and Dance Dance Revolution: Mario Mix.
• Toadsworth—Princess Peach's steward that debuted in Super Mario Sunshine and appears in Mario and Luigi: Superstar Saga, Mario Kart: Double Dash!!, Paper Mario: The Thousand-Year Door, Mario & Luigi: Partners in Time, Super Princess Peach, Mario Power Tennis, Mario Superstar Baseball, Mario Party 7, and New Super Mario Bros..
• Tokotoko—a running rock-like enemy that appears in Super Mario Land.
• Tolstar—a boss who holds Bowser hostage in a cannon in Mario and Luigi: Superstar Saga.
• Torion—a fish who appears in Super Mario Land.
• Torpedo Ted—an underwater Bullet Bill variant that appears in Super Mario World and Super Princess Peach.
• Tox Box—a metal box enemy in Super Mario 64.
• Troopea—a Beanbean Koopa Troopa that appears in Mario and Luigi: Superstar Saga.
• Trouter-A fish who jumped out of the water in Super Mario Bros. 2.
• Trunkle-a tree who blocked the entrance to LittleFungi town in Mario and Luigi: Superstar Saga
• Tryclyde—a three-headed snake boss that appears in Super Mario Bros. 2.
• Tub-O-Troopa-A fat Koopa with wings from Super Mario RPG: Legend of the Seven Stars
• Tubba Blubba—a huge clubba in Paper Mario that guards Skolar, the third star spirit (which escaped) and became invincible after his heart was removed from his body.
• Tuff Puff—a little cloud in Paper Mario that is part of Huff N. Puff.
• Tumble—a living die, who replaces Toad as the host in Mario Party 3; he also appears in Mario Party Advance.
• Tutankoopa—a koopa troopa that lives in the Dry, Dry Ruins and guards the second Star Spirit, Mamar in Paper Mario; also appeared in Mario Pinball Land.
• Tweester—a living tornado that appears in Paper Mario and the Mario Party series.
• Tweeter—a hopping, masked, bird-like creature that appears in Super Mario Bros. 2.
• Twila—a moon-like character that appears in Mario Party 6.

U

• Ukiki—a monkey that likes to steal Mario's hat, who appears in Super Mario 64 and the Mario Party series; it also appeared in Super Mario World 2: Yoshi's Island under the name of Grinder.
• Unagi—an eel enemy that appears in Super Mario 64 and New Super Mario Bros..
• Urchin—an underwater hazard in Super Mario World and Super Princess Peach.

V

• Valentina—a feathered boss that appears in Super Mario RPG: Legend of the Seven Stars.
• Venus Fire Trap—a fire-spitting Pirana Plant that appears in Super Mario Bros. 3.
• Virus-an enemy appearing in Dr. Mario. They also appear in Mario and Luigi: Superstar Saga.
• Vivian—a member of the Shadow Sirens who joins Mario in Paper Mario: The Thousand-Year Door.
• Volcano Lotus—a fire-spitting plant that appears in Super Mario World and Super Princess Peach.
• Vomer- A skeleton who appeared in Super Mario RPG: Legend of the Seven Stars

W

• Waluigi—an evil version of Luigi, appears in Mario Kart: Double Dash!!, Mario Kart DS, the Mario Tennis series, the Mario Golf series, the Mario Party series, Mario Superstar Baseball, Super Mario Strikers, and Dance Dance Revolution: Mario Mix.
• Walruss—a large walrus enemy that appears in Super Princess Peach.
• Wanda—the fairy that assists Mario, Yoshi or Princess Peach in Mario and Wario.
• Wandering Goom—a Goomba-like creature that appears in Super Mario Land.
• Wario—Mario's evil doppelgänger who debuted in Super Mario Land 2: 6 Golden Coins, but has since branched off into his own series as well as appeared in the Mario Kart series, the Mario Tennis series, the Mario Golf series, the Mario Party series, Mario Superstar Baseball, Super Mario Strikers, and Dance Dance Revolution: Mario Mix.
• Wart—the final, frog-like, vegetable-hating boss of Super Mario Bros. 2.
• Watt—a female Spark that appears in Paper Mario.
• Wendy O. Koopa—one of Bowser's Koopalings—as well as his only daughter—that appears in Super Mario Bros. 3, Super Mario World, and Mario and Luigi: Superstar Saga.
• Winkle-a snail race that appears in Chucklehuck Forest in Mario & Luigi: Superstar Saga.
• Whomp—a variant on Thwomp that walks around and hurls himself onto Mario when approached; appears in Super Mario 64, New Super Mario Bros., Mario Golf: Toadstool Tour, and the Mario Party series.
• Whomp King—a Whomp boss that appears in Super Mario 64.
• White Clubba—Clubbas found in icy regions in Paper Mario. a palette swap of the standard Clubba.
• White Magikoopa—a white-robed Magikoopa who uses varying tactics and appears in Paper Mario and Paper Mario: The Thousand-Year Door.
• Wiggler—a passive-aggressive caterpillar that appears in Super Mario World, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Yoshi's Story, Super Mario Sunshine, Mario and Luigi: Superstar Saga, Super Princess Peach, New Super Mario Bros., Mario Kart DS, Mario Kart: Double Dash!!, Mario Power Tennis, and the Mario Party series.
• Wind Spirit—a wind spirit that charges at Mario in Super Mario Sunshine.
• Wizzerd—a half-organic, half-mechanical creature that lives in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
• Wonky—an underground information salesman in Paper Mario: The Thousand-Year Door.

X

• X-Naut—aliens that serve Sir Grodus in Paper Mario: The Thousand-Year Door.
• X-Naut PhD—X-Naut scientists that attack by tossing chemicals in Paper Mario: The Thousand-Year Door.
• X-Yux—an experimental red Yux that appears in Paper Mario: The Thousand-Year Door.

Y

• Yaridovich—a seaside boss in Super Mario RPG: Legend of the Seven Stars.
• Yellow Magikoopa—a palette swap of the standard Magikoopa that electrifies himself and appears in Paper Mario and Mario Superstar Baseball.
• Yo Bro—a yo-yo tossing reptile in Mario and Luigi: Superstar Saga.
• Yoob—a giant alien Yoshi that terrorizes Yoshi's Island in Mario & Luigi: Partners in Time. One of the more disturbing facts about him is that he is colored just like Barney the Dinosaur.
• Yoshi—Mario's dinosaur/dragon mount and best friend who debuted in Super Mario World and has since branched off into his own series. Yoshi appears as both a character and species in the following Mario games, Mario Is Missing!, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Paper Mario, Super Mario Sunshine, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Mario & Luigi: Partners in Time, the Mario Kart series, the Mario Tennis series, the Mario Golf series, the Mario Party series, Mario Superstar Baseball, and Super Mario Strikers.
• Yurarin—a seahorse-like creature that appears in Super Mario Land
• Yurarin Boo—A fire spewing Yurarin that appears in Super Mario Land.
• Yux—a mechanical "X" creature that shoots circular rays and appears in Paper Mario: The Thousand-Year Door.

Z

• Z-Yux—a gray Yux that thrives in space and appears in Paper Mario: The Thousand-Year Door.
• Zess T.—a Rogueport chef that will cook items in Paper Mario: The Thousand-Year Door.
• Zip Toad—a celebrity Toad that appears in Paper Mario: The Thousand-Year Door; he is first impersonated by Doopliss.
• Zombone—Czar Dragon's ghastly alter-ego in Super Mario RPG: Legend of the Seven Stars.

See also

• Characters in Paper Mario: The Thousand-Year Door
• Characters in Super Smash Bros. Melee
• King Toadstool
• List of Mario series items
• List of Nintendo characters
• List of Super Smash Bros. Melee characters
• Mario series enemies

External links

• The Mushroom Kingdom's Mariopedia
• Super Mario Monster Compendium
• Spacepope4u's Mario series character guide