Mutants

A Mutant is any being who has been exposed to Mutagen or in some other way has undergone some form of transformitive mutation.

Definition
The idea of a mutant is a common trope in comic books and science fiction. The new phenotypes that appear in fictional mutations generally go far beyond what is typically seen in biological mutants, and often result in the mutated life form exhibiting superhuman abilities or qualities.

Within the realm of TMNT, the term "mutant" is almost exclusively used to describe any being who has been affected by mutagen, rather than any naturally occurring mutations. Mutagen can mutate a being in numerous ways, ranging from animals taking on human traits (such as The Turtles and Splinter) to humans taking on animal traits (such as Bebop and Rocksteady), to either taking on the traits of other objects (such as Muckman) or simply growing in size and strength (such as the Super Shredder). The 1987 TV series stated that whatever was being mutated would take on the traits of the last living thing it touched. This is not stated in any other series, and would seem contradictory in many cases.

The Mutagen exposure is the same in the 2012 series. According to a Kraang operative in Pulverizer Returns!, the Mutagen's effects is unpredictable. It was also shown that if anyone is exposed to Mutagen and hasn't come in contact with anything animal or plant-related, they will end up turning into a mutant blob. The Mutagen is shown to not mutate anyone who has some Kraang DNA in them.

Mirage

 * Donatello - Mutant Turtle
 * Leatherhead - Mutant Alligator
 * Leonardo - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Raphael - Mutant Turtle
 * Shredder Elite - Mutant Humans
 * Shiva Shredder
 * Claw Shredder
 * Mini Shredder
 * Splinter - Mutant Rat
 * Bloodsucker - Mutant Leech

Teenage Mutant Ninja Turtles and Other Strangeness

 * Terror Bears - Mutant Bears
 * Pain Bear
 * Fear Bear
 * Doom Bear
 * Nightmare Bear
 * Usub Gerstalk - Mutant Alligator
 * The Ratt Pack
 * Labb Ratt - Mutant Rat
 * White Rabbit - Mutant Rabbit
 * Space Case - Mutant Cat
 * Brain Drain - Mutant Guinea Pig Brain
 * Lounge Lizard - Mutant Lizard
 * Road Hogs Turtles - Mutant Turtles
 * Road Hogs Gang
 * Catsblood Claw - Mutant Cheetah
 * Unnamed Mutant Armadillo
 * Unnamed Mutant Elephant
 * Unnamed Mutant Rat
 * Unnamed Mutant Pigs
 * The Stainless Steel Stallions - Mutant Horses
 * Louisa Dato - Mutant Mountain Lion
 * Hancho - Mutant Coyote
 * Ricardo - Mutant Roadrunner
 * Shawn O'Hair - Mutant Raccoon

1987 series

 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Hamato Yoshi/Splinter - Mutant Rat
 * Bebop - Mutant Warthog
 * Rocksteady - Mutant Rhinoceros
 * Bebop and Rocksteady's Gang
 * Scrag - Mutant Bat
 * Yellow Mohawk Punk - Mutant Lizard
 * Punk with the Cap - Unspecified Mutant
 * Short Fat Punk - Mutant Dog
 * Mondo Gecko - Mutant Gecko
 * Muckman - Garbage Mutant
 * Joe Eyeball - Garbage Mutant
 * Mutagen Man - Mutant Blob
 * Napoleon Bonafrog - Mutant Frog
 * Genghis Frog - Mutant Frog
 * Rasputin the Mad Frog - Mutant Frog
 * Attila the Frog - Mutant Frog
 * Scumbug - Mutant Cockroach
 * Baxter Stockman - Mutant Fly
 * The Two-Headed Bull from Mutagen Monster
 * Slash - Mutant Turtle
 * Mona Lisa - Mutant Salamander
 * Mutant Anemones - They were the creations of Captain Filch.
 * Groundchuck - Mutant Cattle
 * Dirtbag - Mutant Mole
 * Leatherhead - Mutant Alligator
 * Tokka - Mutant Alligator Snapping Turtle
 * Rahzar - Mutant Wolf
 * A. J. Howard - Mutant Slug
 * H.A.V.O.C.
 * Titanus - Humanoid Mutant
 * Amok - Mutant Goat
 * Highbeam - Mutant Dragonfly
 * Overdrive - Mutant Cheetah
 * Magma - Lava Mutant
 * Mystic - Mutant Ram
 * Raptor - Mutant Bird
 * Seizure - Mutant Centipede
 * Synapse - Electric Mutant
 * Cobrato - Mutant Snake
 * Tattoo - In the 80's cartoon, Tattoo was a mutated hamster.
 * Carter - Humanoid Mutant
 * Grillox - Alien Mutant
 * Gargon - Alien Mutant

Archie

 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Hamato Yoshi/Splinter - Mutant Rat
 * Bebop - Mutant Warthog
 * Rocksteady - Mutant Rhinoceros
 * Scrag - Mutant Bat
 * Man Ray - Mutant Manta Ray
 * Leatherhead - Mutant Alligator
 * Chameleon - Mutant Chameleon
 * Scumbug - Mutant Cockroach
 * Wyrm - Mutant Worm
 * Mondo Gecko - Mutant Gecko
 * The Uncanny Trio
 * Hallocat - Mutant Cat
 * Nevermore the Scare-Crow - Mutant Crow
 * Nocturno the Owl - Mutant Owl
 * Verminator-X - Mutant Cat Cyborg
 * Armaggon - Mutant Blue Shark
 * Merdude - Mutant Fish
 * Perri Grey - Mutant Flying Squirrel
 * Manmoth - Mutant Mammoth

1990s' Movies

 * Donatello - Mutant Turtle
 * Leonardo - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Rahzar - Mutant Wolf
 * Raphael - Mutant Turtle
 * Splinter - Mutant Rat
 * Super Shredder - Humanoid Mutant
 * Tokka - Mutant Alligator Snapping Turtle

Next Mutation

 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Splinter - Mutant Rat
 * Venus de Milo - Mutant Turtle

2003 series

 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Splinter - Mutant Rat
 * Leatherhead - Mutant Crocodile
 * Dark Turtles - Evil clones of the Turtles
 * Dark Leonardo
 * Dark Donatello
 * Dark Raphael
 * Dark Michelangelo
 * Underground Monsters - The humans that were transformed have gained their monstrous appearances from the Foot Clan's experiments.
 * Quarry
 * Razorfist
 * Stonebiter
 * King Nail
 * Underground Cyclops Monster
 * Underground Insectoid Monster
 * Underground Spider Monster
 * Shredder Elite - Genetic experiments of the Shredder.
 * Shiva Shredder
 * Claw Shredder
 * Mini Shredder
 * Minnetonka Mutant - Mutant Cockroach
 * Hun (Turtles Forever) - He mutated into an Alligator Snapping Turtle during the special.
 * Mutant Foot Soldier - Foot soldiers that were exposed to mutagen owned by the 80's Shredder and Krang.
 * Tokka (Turtles Forever) - Mutant Alligator Snapping Turtle. He was mutated from a Foot Ninja.
 * Rahzar (Turtles Forever) - Mutant Wolf. He was mutated from a Foot Ninja.
 * Purple Dragons (Turtles Forever)
 * Mohawk - Mutant Dog

IDW Series

 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Splinter - Mutant Rat
 * Old Hob - Mutant Cat
 * Alopex - Mutant Arctic Fox
 * Koya - Mutant Brown Falcon
 * Slash - Mutant Turtle
 * Rocksteady - Mutant Rhinoceros
 * Bebop - Mutant Warthog
 * Bludgeon - Mutant Hammerhead Shark
 * Flyborg - Mutant Fly
 * Hun - Enhanced Human
 * Pete - Mutant Pigeon
 * Herman - Mutant Hermit Crab
 * Mondo Gecko - Mutant Gecko
 * Mutagen Man - Mutant Hybrid
 * Sally Pride - Mutant Lioness
 * Ray - Mutant Manta Ray
 * Leatherhead - Mutant Alligator

2012 series

 * Humans - In this show, Kraang Prime mentioned that the Mutagen was used to evolve humans from monkeys.
 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Hamato Yoshi/Splinter - Mutant Rat
 * Snakeweed - Mutant Plant
 * Spider Bytez - Mutant Spider
 * Dr. Tyler Rockwell/Monkey Brains - Mutant Monkey
 * Pete - Mutant Pigeon
 * Chris Bradford/Dogpound/Rahzar - Mutant Akita (formerly), Mutant Wolf (current)
 * Xever Montes/Fishface - Mutant Snakehead Fish
 * Leatherhead - Mutant Alligator
 * Victor Falco/Rat King - Humanoid Mutant
 * Kraang Prime - Mutant Utrom
 * Justin - Multispecies Mutant
 * Spy-Roach - Mutant Cockroach
 * The Pulverizer/Timothy/Mutagen Man - Mutant Blob
 * Parasitica Wasp - Mutant Wasp
 * Kirby O'Neil - Mutant Bat (formerly), Half-Kraang Mutant (formerly)
 * Squirrelanoids - Mutant Squirrel
 * Spike/Slash - Mutant Tortoise
 * April-Derp and April Clones - Mutant Human/Kraang Clone
 * Fungus Humongous - Mutant Mushroom
 * Ice Cream Kitty - Mutant Cat/Ice Cream Hybrid
 * Giant Rats - Mutant Rats
 * Rat Man Freak - Mutant Human/Rat Hybrid
 * Tiger Claw - Mutant Tiger
 * Martin Milton/Sir Malachi - Mutant Sparrow
 * Baxter Stockman/Stockman-Fly - Mutant Housefly
 * Antonio/Pizza Face - Mutant Pizza
 * Hamato Miwa/Oroku Karai - Mutant Snake
 * Kraang Zombies - Mutant Human/Kraang
 * Creep - Mutant Ground
 * Mom-Thing - Mutant Human/Kraang Clone
 * Punk Frogs
 * Attila the Frog - Mutant Frog
 * Genghis Frog - Mutant Frog
 * Napoleon Bonafrog - Mutant Frog
 * Rasputin the Mad Frog - Mutant Frog
 * Frog Soldiers - Mutant Frogs
 * Speed Demon - Mutant Muscle Car
 * Dr. Cluckingsworth - Mutant Chicken
 * Chimera - Mutant Falcon/Fish/Worm Hybrid
 * Shredder Mutants
 * Mini Shredder - Mutant Shredder Clone/Shrimp
 * Claw Shredder - Mutant Shredder Clone/Lobster
 * Shiva Shredder - Mutant Shredder Clone/Crab
 * Anton Zeck/Bebop - Mutant Warthog
 * Ivan Steranko/Rocksteady - Mutant Rhinoceros
 * Garson Grunge/Muckman - Mutant Garbage
 * Joe Eyeball - Mutant Eyeball
 * Jason/Mondo Gecko - Mutant Gecko
 * Mega Shredder - A fusion of the Shredder Mutants.
 * Son of Snakeweed - It was mutated from one of Snakeweed's severed claws.
 * Creepweed - It was mutated from some parts of Creep and Son of Snakeweed.

2014 Movies

 * Leonardo - Mutant Turtle
 * Donatello - Mutant Turtle
 * Raphael - Mutant Turtle
 * Michelangelo - Mutant Turtle
 * Splinter - Mutant Rat
 * Rocksteady - Mutant Rhinoceros
 * Bebop - Mutant Warthog

Toys
This section details mutants that only appeared as action figures in the TMNT toylines.


 * Ace Duck - Mutant Duck
 * Biting Bulldog Buddy - Mutant Bulldog
 * Bob the Beaver - Mutant Beaver
 * Crackers - Mutant Parrot
 * Doctor El - Mutant Elephant
 * Halfcourt - Mutant Giraffe
 * Harey - Mutant Rabbit
 * Hot Spot - Mutant Dalmatian
 * Jail Bird - Mutant Bird
 * King Lionheart - Mutant Lion
 * Larry the Lemur - Mutant Lemur
 * Monty Moose - Mutant Moose
 * Nutty - Mutant Squirrel
 * Pizza Face - Mutant Pizza Chef
 * Ruff the Ref - Mutant Flamingo
 * Sandstorm - Mutant Dromedary
 * Scratch - Mutant Cat
 * Sergeant Bananas - Mutant Gorilla
 * Sewer Sea Gull - Mutant Sea Gull
 * Sunflower Pal - Mutant Sunflower
 * Tad Pole - Mutant Frog
 * Thorny - Mutant Cactus
 * Walkabout - Mutant Kangaroo