Characters from the long-running comic book series ''Franchise/TeenageMutantNinjaTurtles'', as well as some exclusive to some of its non-comic incarnations.\\
'''Note:''' Several characters' allegiances shift between incarnations. They have been placed in the side they are most usually associated with.

Characters exclusive to the following series can be found here:

''' Comic Books'''

[[Characters/TeenageMutantNinjaTurtlesMirage The Mirage books]]


'''Cartoons'''

Characters/TeenageMutantNinjaTurtles1987

Characters/TeenageMutantNinjaTurtles2003

Characters/TeenageMutantNinjaTurtles2012

'''Films'''

[[Characters/TeenageMutantNinjaTurtlesLiveActionTrilogy The Live Action Trilogy]]

Characters/{{TMNT}}

'''Live Action TV'''

Characters/NinjaTurtlesTheNextMutation
----
[[foldercontrol]]

[[folder:Heroes]]

!! As a whole
* AirplaneArms: The turtles consistently run like this.
** LeParkour: Unless they run like this
* BadassFamily: The turtles and Splinter, undeniably so.
* BaldOfAwesome: By virtue of being hairless reptiles.
* BrownEyes: In the movies, original cartoon and ''Next Mutation''.
* CompetitiveBalance:
** Leo: [[JackOfAllStats Balanced]]
** Raph: [[MightyGlacier Power]]
** Don: [[StoneWall Defense]]
** Mikey: [[FragileSpeedster Spe]][[GlassCannon ed]]
* DivergentCharacterEvolution: The Turtles were more or less identical in the original comics, the 1987 series gave them different colored bandanas, the toys based on that series gave them different skin tones, the movies gave them different body types that have continually been exaggerated into the 2007 movie, the Back to the Sewer redesigns in the 03 series, and the 2012 series.
* {{Foil}}: all four of them as a group and in pairs
** RedOniBlueOni: Raph and Mike are Red, Leo and Don are Blue
** FoolishSiblingResponsibleSibling: Mikey > Don ~ Raph > Leo
** AllWorkVsAllPlay: Leo and Mike
** TheHero vs TheLancer: Leo and Raph
** BrainsAndBrawn: Don and Raph
** HiddenHeartOfGold / HypocriticalHeartwarming: Raph towards Mike
** TheSmartGuy vs BookDumb: Don and Mike
** Leo and Don are the only ones that don't have any real tension when they pair up together.
*** The [[ComicBook/TeenageMutantNinjaTurtlesIDW IDW series]] puts Leo and Don on opposite sides of the reincarnation debate, giving them an AgentMulder and AgentScully relationship.
* FourTemperamentEnsemble: The rational leader Leonardo is Melancholic, the calm gadgeteer Donatello is Phlegmatic, the goofball Michelangelo is Sanguine, and the short-tempered Raphael is Choleric.
** FourPhilosophyEnsemble: Raph is Cynical, Mike is Optimist (no wonder both take shots at each other), Leo is Realistic and Don is Apathetic (with traces of Conflicted).
* GreenEyes: In the 2003 cartoon.
* HappilyAdopted
* HilariouslyAbusiveChildhood: Let's just say Splinter's lessons aren't exactly gentle.
* {{Metamorphosis}}: From turtles to humanoid turtles.
* NamedAfterSomebodyFamous: After iconic Renaissance artists.
* TheTeam[=/=]ColorCodedCharacters
** TheLeader: Leonardo - Blue
** TheBigGuy[=/=]TheLancer ([[AdaptationOverdosed Sometimes]] NumberTwo): Raphael - Red
** TheSmartGuy ([[AdaptationOverdosed Sometimes]] NumberTwo): Donatello - Purple
** PluckyComicRelief: Michelangelo - Orange
** TheChick / a second SmartGuy (or more famously TagalongReporter due to the 87 series): April - Yellow
** SixthRanger / a second BigGuy: Casey Jones - Green, or Black, or White
** TheMentor and BigGood: Splinter - Magenta or Brown
** TeamPet: Klunk, a stray cat Michelangelo rescues. In the 2012 series Raph has a non-mutated turtle named Spike.
** SignatureTeamTransport: The Turtle Van, which has been remimagined into the Battle Shell, The Shellraiser, and Cowabunga Carl's van.
*** As of the Live Action Next Mutation series, Raph usually gets a [[CoolBike motorcycle too.]]
* TrueCompanions: BadassFamily plus friends.


!! [[color:blue: Leonardo]]
-> Leads. Always in control. Does anything to get his ninjas through. Identifiable by his blue bandana and his twin swords.
->'''Appears in''': All incarnations.


* AllLovingHero: Even after all the betrayals and all the terrible things he's seen, Leo still expects the best out of people.
* AuthorityEqualsAsskicking: Consistently the most skilled Turtle, he falls into the leadership role by default.
* TheChainsOfCommanding
** Michaelangelo actually notes this in an episode of the 4Kids series: Leo takes the burden of being the leader so his brothers can do what they want: Dontaello's free to pursue his technological inventions, Raphael's free to let loose and fight, and Mikey's free to just relax because their brother's in control.
* {{Badass}}
** TookALevelInBadass: In all incarnations, the turtles all go through this, but Leonardo is the one who most clearly demonstrates the trope. One example is in the first season of the 4Kids cartoon where he can barely handle fighting one of the Foot Elite, and is nearly killed trying to take on all four. By the end of the fourth season, he not only takes on all four without apparent difficulty, but also bests Karai, the incumbent Shredder, in the process.
* BigBrotherInstinct: Even though he's never officially stated to be the oldest.
* {{Bookworm}}: He seems to be this in the 1987 incarnation. In the "Leonardo is Missing" episode, he stays at the lair and reads while the other turtles go to an arcade.
* ChildSoldiers: Of the four, it's Leonardo who exemplifies this the most.
* CombatPragmatist: Leonardo's sense of honor dictates that he fight fairly, but when he's pushed into a corner or there is no other alternative, he will not hesitate to ''slice off your head''.
* CulturedWarrior: Depends on the writer, but if one of the turtles is going to be in touch with Japanese traditions, it's gonna be Leo.
* DependingOnTheWriter: A lot of tropes carry over between series, but some are fairly unique. Leonardo is always the skilled, "most leader-like", and responsible turtle. But whether its accomplished by being an overly serious workaholic, a respectable older brother figure, bossy teacher's pet, meditative and spiritual, wanting to emulate fictional archetypical heroes or any combination of the above depends on the series and sometimes the story arc. Overall he is one of the most consistent across all interpretations.
** One very good (actually very bad) example is the 2007 movie written by Kevin Munroe, who clearly had a favorite turtle. Not only are Leonardo's traits exaggerated and warped to provide an antagonist/foil for Raphael, but his personality and background are sacrificed for the movie's plot.
* {{Determinator}}
* DualWielding
* EmotionsVsStoicism
* TheFace
* FourTemperamentEnsemble: Melancholic.
* GuiltComplex: He is very bad with this. Very bad.
* HeroesPreferSwords: As the leader of the group, Leo gets the shiny swords.
* HeroicBSOD: Mirage Comics, 4Kids Series.
* HeroicSpirit: A big reason why he's a determinator.
* HeterosexualLifePartners: With [[UsagiYojimbo Miyamoto Usagi]].
* HonorBeforeReason
* IndyPloy: Alarmingly, a lot of his plans qualify as this. Most of the time, however, they actually ''work''.
* InnocentBlueEyes: In the 2012 Nick series, obviously. They help solidify his youth and inexperience.
* JackOfAllStats: Videogames.
* KatanasAreJustBetter: Obviously.
** Although Leonardo's swords are often much more closely modeled around the [[http://en.wikipedia.org/wiki/Ninjato ninjato]].
* KnightTemplar: Leonardo's story arc in the 4th season of the 4Kids series have him nearly cross over into Knight Templar territory. His rage gets so bad he actually ''wounds'' Splinter and has to be sent away to Japan to learn from Splinter's master.
* TheLeader
* MartialPacifist: Mirage Leonardo, in the future.
* MasterSwordsman
* TheMcCoy: Though he overlaps with [[TheKirk The Kirk]]. Along with Mikey, he's usually presented as the most empathic of the turtles, whether it's granting mercy to an overmatched foe, or saving the life of a mutant two seconds after she tries to kill him.
* {{Metamorphosis}}
* NamedAfterSomebodyFamous: LeonardoDaVinci.
* NervesOfSteel: Captured by aliens, trapped thousands of miles from Earth with no way back, poisoned and weaponless? For Leonardo, that's a training run.
* NoHoldsBarredBeatdown: He gets into quite a few of these. If he's not on the receiving end, he's usually administering it.
* OldMaster: Mirage Leonardo, in the future.
* AProtagonistShallLeadThem: Leonardo usually gets the most lines of dialogue, and most of the stories are told from his perspective. Even when he's not presented as the main character (such as the TMNT movie), he plays a major role.
* RedOniBlueOni: The blue to Raphael's red, [[ColorCodedForYourConvenience of course!]]
* {{Samurai}}: Leonardo is technically a ninja, but a lot of the tenets he quotes are in line with samurai. It's no surprise he and Usagi got along swimmingly.
* ScarsAreForever: To an extent. In the Season 3 finale of the 4Kids series, [[spoiler: Karai--whether accidentally or not--stabs Leo. Her sword goes through his shoulder and out the side of his upper shell. All throughout Season 4 the crack in his shell remains as he descends into Knight Templar territory, and even after he recovers it refuses to heal. Not until the ''Fast Forward'' reboot, anyway.]]
* SlidingScaleOfIdealismVersusCynicism: In the 4Kids series, he starts out at the very end of the Idealism scale, even believing the best of the Shredder and then his daughter Karai. As the seasons progress he shows signs of being capable of sliding down the other way--he does this in the fourth season--though he remains mostly rooted in idealism.
* TheSpartanWay: All the turtles train hard, but Leonardo--whether or not by his own design--is almost always subjected to the kind that involves complete isolation, distant countries, and/or imminent death.
** In the 4Kids series, Leonardo as a child was suffering from a fear of heights. Splinter brings him to the top of a gigantic reservoir and pretends to be in danger of falling. Leonardo forces himself to crawl out and save him, and apparently conquers his fear in the process.
* StandardizedLeader: Usually in his most basic, stripped-down incarnations.
* TeamDad
* ThouShaltNotKill: Mirage Leonardo, in the future.
* TookALevelInJerkass: During the first half of the 4Kids cartoon's fourth season, combined with HeroicBSOD. He had a really good reason.
* WeaponOfChoice: [[DualWielding Twin]] {{Katana|sAreJustBetter}}.
* WellDoneSonGuy: Most of what Leonardo does is to please Splinter. Whether or not this is a good thing is still a debate in fandom.
* WhatTheHellHero: Leo gets this in the 4Kids cartoon from his brothers and Splinter when he's on the verge of becoming a [[KnightTemplar Knight Templar]].
* WiseBeyondTheirYears: In childhood flashbacks, he's usually the turtle acting like the adult. And for a teenager, he deals very well with duties and responsibilities most adults would be unable to fathom.

!! [[color:purple: Donatello]]
-> Does machines. Is the brains of the bunch. Marked with a purple headband, and fights with a bo staff.
->'''Appears in''': All incarnations.

* {{Adorkable}}
* {{Badass}}
** BadassAdorable
** BadassBookworm
** BadassInDistress: The time he was captured by the Triceratons, and the end of the Outbreak arc after being mutated a second time. Less dramatic instances are scattered throughout the 4Kids series, too, usually when it would be easy for him to solve a problem/end an episode before its time.
* {{Beware the Nice|Ones}}/[[BewareTheQuietOnes Quiet Ones]]
* BondBreaker: Donatello was warped into an alternate future where he had disappeared for 20 years. Without his resourceful, tech savvyness, the Turtles were disbanded and the Shredder had succeeded in world domination. The supporting cast made up the last rebel resistance.
** Also an example of ItsAWonderfulPlot, where a character often sees that their team or the whole world is worse off for their absence.
* BigLittleBrother: Taller than Leo but, fittingly, tied with Raph.
** Taken to the next level in the 2012 cartoon, where he's noticeably the tallest of all his brothers.
* BrainwashedAndCrazy: Not quite brainwashed, but [[{{Metamorphosis}} mutated]] and certainly crazy enough to live up to the spirit of the trope during the Good Genes arc-- unwitting FaceHeelTurn included.
* BrownEyes: In the 2012 cartoon, presumably to show his "plainness".
* ButtMonkey: Has become this in the 2012 cartoon.
* CrazyPrepared: "I don't know what bothers me more - that this actually works, or that Don carries around a pigeon puppet?"
* DependingOnTheWriter: A lot of tropes carry over between series, but some are fairly unique. Don is always TheSmartGuy. But he's sometimes contemplative and detached, laidback and sarcastic, nerdy and clumsy, a bit tense and highstrung, or love struck with April or some combination of the above depending on the series and sometimes the story arc.
* DoesntLikeGuns: Mirage comics.
* FightingFromTheInside: A variant while he was prisoner on board the Triceraton mother ship, resisting against borderline MindRape. He held out for awhile, but needed help to fend the assault off.
* FirstPersonSmartass: Whenever he's the one voicing the opening narration in the 2003 series.
* FoolishSiblingResponsibleSibling: The responsible to Michelangelo's foolish.
* FourTemperamentEnsemble: Phlegmatic.
* GadgeteerGenius: Considering that he's self-taught, living in a sewer, and working mostly with scavenged junk, Don's inventing abilities are downright super-reptilian.
* GeniusBruiser
* {{Genius Sweet Tooth}}: Averted he doesn't seem to have much of a {{Sweet Tooth}} and according to his official profile his favorite food is sushi. Although in one issue of the comic comic written by Matt Howarth Donny's {{Acid Reflux Nightmare}} Is triggered by eating an entire bag of cookies.
* GentlemanSnarker: In the 4Kids show, he's second only to Splinter where polite snarking is concerned.
** He's more like a [[DeadpanSnarker Deadpan Snarker]] in the 2012 series, particularly when he's firing back at Raphael for his "meathead" declarations.
* HeroicBSOD: Like Leonardo, he suffers one in the 4Kids series' last season up until the end of episode 5. Cody finally manages to fix his Time Window to send the turtles and Splinter back to the present, but due to some inteference from Viral, Splinter is vaporized and it's later revealed that he's trapped in cyberspace.
* IntelligenceEqualsIsolation: Not often, but on occasion he's sequestered off in his lab. Most noticeable in 'Return to the Underground'.
* TheKlutz: A trait that doesn't come up often-- but if/when it does, it's always in the middle of a fight or stealth mission.
* TheLancer: He's the team's second-in-command.
* LaymansTerms: Often the one doing the translating, sometimes visibly annoyed.
* MartialPacifist: According to [[http://www.ninjaturtles.com/html/profile1.htm his official profile,]] he'd like to be one.
* {{Metamorphosis}}: Twice-- once in the backstory, once at the end of the 2003 toon's fourth season.
* MightyGlacier: In most games. Slow as a... Well, [[ShapedLikeItself turtle]], but has the most health and the longest reach.
* MrFixit
* NamedAfterSomebodyFamous: Donato "Donatello" di Niccoló di Betto Bardi.
* NiceGuy
* NumberTwo: In the original comic series and '87 cartoon. He was expected by both Splinter and Leo to take on this role in the fourth movie, but couldn't keep Rapheal in line. By the end after Raph got his head on straight, he took over leadership from Don.
* OmnidisciplinaryScientist
* OOCIsSeriousBusiness: Played backwards, actually. We get the 'serious business' part within the first few minutes of ''Same as it Never Was''. Just before the episode's BittersweetEnding, the [=OoC=] part comes in.
** OutOfCharacterMoment: Don [[spoiler: absolutely ''slaughters'' Ch'rell]] at the end of ''[=SaiNW=]'', a far cry from his [[TechnicalPacifist usually pacifistic]] actions. [[JustifiedTrope Understandable, of course]] [[BadFuture given the circumstances.]]
* PrecociousCrush: In the 4Kids cartoon, he has one on April. With April's de-aging in the Nick cartoon, it becomes a plain old crush and [[CrushBlush much more]] [[SheIsNotMyGirlfriend blatant.]]
* TheProfessor
* TheReliableOne
* TheSmartGuy
* SesquipedalianLoquaciousness: For example: "The elasticity of its flesh is too resilient!" [[note]] Which is to say "It's really rubbery"[[/note]]
* TechnicalPacifist: In some incarnations.
* TeenGenius
* TookALevelInJerkass: He was always cool-headed, but in the 2012 series, he has become more neurotic and prone to outbursts. It does work at times though.
* WeaponOfChoice: SimpleStaff.
* WeirdnessMagnet: Even amongst his brothers.
* WrongGenreSavvy: Demonstrated a couple of times throughout 2k3-- like trying something he [[SawItInAMovieOnce saw in a movie]] during a fight with the Foot. It doesn't work.

!! [[color:red: Raphael]]
-> Is cool but crude. Throws the first punch. The muscle with the most attitude. He wears red and fights with a pair of sais.
->'''Appears in''': All incarnations.

* AccidentalMisnaming: A lot of fans mistakenly call him "Ralph" instead of Raph.
* {{Acrofatic}}: Not necessarily fat but 2012 Raphael is noticeably more thickset than his brothers but is frequently shown as the first one to throw himself into backflips and cartwheels.
* AloofBigBrother: Partially inverted. He's younger than Leonardo and Donatello making him an aloof little brother, but older than Michelangelo playing straight for him.
* AxCrazy: In the Mirage comics Raph is by ''far'' the most violent of the turtles.
* {{Badass}}
** {{Badbutt}}: In the Fred Wolf cartoon.
* BashBrothers: With Casey.
* BerserkButton: Threaten his family and you're gone.
* TheBerserker: Mostly. (Every continuity but the Fred Wolf cartoon.)
* BigBrotherBully: To Michelangelo, in the cartoons. Also, to a lesser extent, to Donatello and even Leonardo.
* BigBrotherInstinct: Again, towards Michelangelo, especially in the comics.
* TheBigGuy
* BloodKnight: Can slip into this at times.
* BreakingTheFourthWall: In the 1987 cartoon, each of the turtles would break the fourth wall at some point, but Raphael did it most frequently. This is lampshaded in TurtlesForever, much to the confusion of the 2003 cartoon cast.
* BrooklynRage: Not only because he's an angry New Yorker - the first movie even gives him a Brooklyn accent.
* DeadpanSnarker: Fred Wolf cartoon. Also in most other continuities, albeit dialed down.
-->'''[[Film/TeenageMutantNinjaTurtles Raph]]:''' (Examines one of Casey's bats) A Jose Canseco bat?? Tell me... [[TakeThat you didn't pay money for this]]...
* DependingOnTheWriter: A lot of tropes carry over between series, but some are fairly unique. Raphael is always the most cynical turtle. But he can range anywhere from being violent and sadistic, a sarcastic wisecracker and complainer, a meathead jock, brooding loner, or some combination of the above depends on the series and sometimes the story arc.
* {{Expy}}: Of {{Wolverine}} in the Mirage comics.
* EyepatchOfPower: All of his future incarnations.
* [[FireForgedFriends Fire-Forged Friend]]: With Casey, in most incarnations.
* FourTemperamentEnsemble: Choleric.
* GlassCannon: Fastest move rate and attack speed in most games he is featured in, [[CloseRangeCombatant but he has to kiss enemies to hit them with his sai]], and has the lowest health. [[PopularityPower The lack of strength is completely inverted in the comics.]]
* GoodIsNotNice
* GreenEyes: The only one to retain them from the 2003 cartoon to the 2012 one, as the color is associated with HotBlooded people.
* HairTriggerTemper: Every turtle incarnation is bound to have an episode focusing on this aspect of him alone.
* HotBlooded
* {{Jerkass}}
** JerkWithAHeartOfGold
** JerkassFacade: Oh, he cares. He just doesn't want anyone else to know he cares.
* TheLancer
* LightningBruiser: Is often noted as being the turtle with the strongest physical strength, but in the very first issue of the very first comic, he was noted as being the best at stealth, sent alone to deliver a message to the Shredder.
* ManlyTears: Shows this in the "Tales of Leo" episode.
* MediumAwareness / NoFourthWall: Fred Wolf series.
* {{Metamorphosis}}
* MiddleChildSyndrome: Played with. Raphael isn't the middle turtle, but he feels as if no one understands him. {{Lampshaded}} at least once a season in any franchise. Really taken home in the fourth movie when he takes on the alias of The Nightwatcher.
* NumberTwo: in the 4Kids and Nickelodeon series but not in others. Still doesn't stop him from wanting to be the leader and taking charge over Donatello in the other series sometimes. For example at the end of the fourth movie where Splinter outright states that Raphael has the makings of a great leader and Raph leads the rest to rescue Leo.
* NamedAfterSomebodyFamous: Raphael Sanzio.
* RedOniBlueOni: The red to Leonardo's blue.
* SecretIdentity: Nightwatcher, in the fourth movie.
* TheSociopath: At his darkest moments Raphael has shades of this mindset.
* TookALevelInJerkass: If you're more familiar with the Fred Wolf cartoon.
** In the 2012 series as well, no matter which incarnation you compare him to. However, he slowly gets better in later episodes.
* WeaponOfChoice: SaiGuy.
* WolverinePublicity


!! [[color:orange: Michelangelo]]
-> Is a party dude. Wiseguy. The wild one and one-of-a-kind. The most laid-back of the turtles, who lists among his interests pizza, comic books, and more pizza. Wears an orange-yellow bandana, and duels with nunchaku.
->'''Appears in''': All incarnations.

* AnnoyingYoungerSibling: Except in the '87 series where he's second eldest to Leonardo. Leonardo listed as 16, Mike 15 1/2, and Raph and Don both 15.
* AscendedFanboy: Sorta, he's a big comic book geek who happens to be a superhero himself.
** In the Mirage comics he's a comic book geek who gets to write for comic books and even becomes a published novelist.
* AttentionWhore: 4Kids series.
* {{Badass}}
** BadassAdorable: Silly, loves him some comic books, childish, always willing to crack a joke and and can kick tons of asses with his nunchucks. Yup. Taken to it's furthest extreme in 2007's ''TMNT'' where Mikey is the shortest turtle and has huge adorable InnocentBlueEyes (we ''know'' it doesn't make sense, but it's ''cute, dammit'').
** CrouchingMoronHiddenBadass: (4Kids series): Although he can always kick ass, his skills will occasionally take a bump as the plot requires, allowing him to take on foes that would normally defeat him or his brothers.
* {{Beware the Nice|Ones}}/[[BewareTheSillyOnes Silly Ones]]
* BigEater: In the Fred Wolf cartoon, he'd often annoy his brothers by eating all the pizza.
* BrilliantButLazy: He's usually portrayed as having great potential, but because of his more laidback personality, he'll focus on something more fun instead.
** This is enforced with his WeaponOfChoice (the chucks, see below), the laziest of the turtles is the one wielding the most complex and difficult weapon. That's not something one can do without a gift for it.
* ButtMonkey: Especially in the cartoons. If any of the Turtles klutzes out or has something bad happen to them for comic effect, it's Michelangelo.
* CatchPhrase: The most famous "Cowabunga!" as well as "Booyakasha!" in the Nickelodeon cartoon series.
* CharacterizationMarchesOn: Depending on the version, really - in the comic books, he isn't really a party dude, but more of a down-to-Earth type of guy as opposed to his brothers. He was able to author a book at one point.
** In the Mirage comics he often traded back and forth with Donatello as TheSmartGuy with Donny being the expert in science and technology while Mikey's specialty was culture and literature.
** Ironically when compared to his later incarnations, Mikey is also one of the ''most violent'' of the group in the Mirage comics. Only Raph (who can border on AxCrazy) is worse.
* {{Cloudcuckoolander}}
* DependingOnTheWriter: A lot of tropes carry over between series, but some are fairly unique. Mike is always the 'fun guy' and comic relief. But he ranges from being down to earth and artistic, to a laidback surfer dude, to an egocentric prankster, to a hyperactive ditz. What counts as the [[TotallyRadical hip and cool]] KidAppealCharacter changes the most between series over the 25+ year history of the franchise. He's usually a reflection of the times.
* DopeSlap: Gets it a lot in the 4Kids series.
* FoolishSiblingResponsibleSibling: The foolish to Donatello's responsible.
* FourTemperamentEnsemble: Sanguine.
* FunPersonified
* GenreSavvy: 4Kids series.
* HardWorkHardlyWorks: Although the trope is disproved by Leonardo, there is an element of this to Mikey's abilities, and he is consistently considered to be the most naturally gifted of the turtles despite his lack of focus and dedication to training.
* TheHeart: Although he exasperates his three brothers on a constant level, when a serious rift between their bond takes place, he usually is the one to try and patch things up...usually via humor.
* HiddenDepths
* HooksAndCrooks: Occurs in later seasons of the original cartoon, due to censorship in England.
** He also uses one briefly in the 4Kids cartoon as a callback.
** The Nickelodeon cartoon has him using this almost as much as his nunchaku.
* InnocentBlueEyes: In the 2007 movie, the ''Back to the Sewers'' incarnation of the 4Kids series, and the new Nick series. They go a long way toward making him look ''adorable''.
* JumpedAtTheCall: 4Kids series.
* {{Keet}}
* KidAppealCharacter
* KindheartedCatLover
* [[TheKnightsWhoSaySquee The Knight Who Says Squee]]: 4Kids cartoon.
* LargeHam: In almost every incarnation.
* LightningBruiser: Michelangelo runs faster than Leo and Don and has more health than all of his brothers. However, his nunchucks are slow and have little range (Turtles in Time, The Arcade game, Manhattan Project).
* {{Metamorphosis}}
* NamedAfterSomebodyFamous: Michelangelo Buonarroti.
* PluckyComicRelief
* RealMenWearPink: In ''Back to the Sewers'' he was positively ''delighted'' when April asked him to be her Maid of Honor, when people tried to call him the more gender-neutral "Turtle of Honor" [[InsistentTerminology he would correct them.]]
** In the Mirage comics he was the TeamChef, even cooking an elaborate Christmas dinner in one issue.
* TheRedMage: In the games, average movement speed and faster attack speed than Don, but defensively weaker than Leo.
* ScreamsLikeALittleGirl: 4Kids and 2012 series.
* SecretIdentity: Turtle Titan (4Kids cartoon).
* TheSlacker: 4Kids series.
* SpellMyNameWithAnS: Many incarnations misspelled the name as Mich'''a'''elangelo. (which fit as in some languages it is a variation on [[ThisIsMyNameOnForeign Michael Angel]])
* SurferDude: Mostly in the Fred Wolf cartoon, although aspects of this remain in other incarnations.
* TookALevelInDumbass: In the 2012 series.
* TookALevelInJerkass: In the ''Next Mutation'' series. To a lesser extent, in the 4Kids series as well.
* TrademarkFavoriteFood: Though pizza is the favorite food of all four turtles, Michelangelo eats it more obsessively than the other three, especially in the Fred Wolf cartoon. He was the first to try it in the new show.
* WeaponOfChoice: FightingWithChucks (the hardest to master of the four turtles' weapons).

!! Splinter
->Taught them to be ninja teens. A mutated rat who serves as the turtles' mentor and father, raising them from when they were young.
->'''Appears in''': All incarnations.

* BadassGrandpa
* CoolOldGuy
* CompositeCharacter: He and Hamato Yoshi are one and the same in several continuities.
* DeadpanSnarker: ''Damn.''
* GentlemanSnarker
* HonoraryUncle: To Shadow (Mirage comics).
* KilledOffForReal: [[spoiler:Mirage Comics.]]
* TheMentor
* {{Metamorphosis}}: Human to rat in Fred Wolf/Archie/2012, rat to humanoid everywhere else.
* MinoredInAssKicking
* NotSoAboveItAll: 4Kids, but frequently displays this across all mediums. He loves his soap operas, beats out Casey and Raph in poker several times, snarks periodically about his sons' antics, and even cracks a joke here and there.
* TheObiWan: First live-action movie.
* OldMaster
* PapaWolf
* RodentsOfUnusualSize
* SimpleStaff: The [[WesternAnimation/TeenageMutantNinjaTurtles2003 2003 cartoon TV series]].
* SophisticatedAsHell: 4Kids series.
* TeamDad
[[/folder]]

[[folder:Allies]]

!! [[color:gold:April O'Neil]]
->A {{girl next door}} who serves as one of the turtles' first human friends. Normally associated with the color yellow.
->'''Appears in''': Most incarnations.

* ActionGirl: Latter Archie Comics, 2003 series, 2007 film.
* AllGirlsWantBadBoys: Her attraction to Casey.
* ArtInitiatesLife: Mirage comics.
* BadassAdorable: Nick cartoon.
* BadassBookworm: 4Kids cartoon.
* BareYourMidriff: 4Kids cartoon.
* BoundAndGagged: Fred Wolf cartoon. The 2012 series does a nod to this when she's abducted by the Kraang.
* TheChick
* CursedWithAwesome: April is turned into a fish mutant in one episode of the Fred Wolf cartoon. She's understandably upset about it, but it saves her life when the villain's base is flooded and she's able to breathe underwater like the Turtles.
* DistressedDamsel: Fred Wolf cartoon.
* {{Fainting}}: Occurs after she first sees the turtles in every incarnation [[spoiler:except the 2012 series]].
-->'''Michelangelo:''' She ain't no fun, she fainted.
* GoingForTheBigScoop: Fred Wolf cartoon, Archie Comics.
* HotScoop[=/=]IntrepidReporter: Fred Wolf Cartoon, Archie comics, first two movies.
* {{Leitmotif}}: 4Kids cartoon.
* MissionControl: 4Kids cartoon.
* MotherlyScientist: In the IDW Comics, where she becomes quite attached to the pre-mutation turtles and even gives them their names.
* OddFriendship: In most adaptations Splinter and April strike up a deep but rather strange friendship. April is sometimes perplexed by the various personality quirks of each turtle while Splinter is exasperated having seen this all before.
** The relationship is more paternal though in the 2012 cartoon.
* PutOnABus: Mirage comics.
* RaceLift (Mirage comics): [[AmbiguouslyBrown Although her race was never established within the comics, or even agreed upon by the creators,]] Kevin Eastman used to draw her with distinctively non-caucasian features ([[WriteWhoYouKnow He was, coincidentally, dating a mixed-race woman at the time]]), which went away when he stopped drawing and she became clearly white.
** [[spoiler: In the 2012 cartoon, it's revealed her mother was experimented on and she's half human with some Kraang features]]
* SecondLove: Mirage comics.
* TookALevelInBadass: In most continuities she eventually starts training with the Turtles and Splinter if only for self defense as she continues to be part of their support group. The 2012 series deserves special mention for doing this essentially right off the bat, [[SeventhEpisodeTwist seven episodes in.]]
* UnfazedEveryman
* YoungerAndHipper: The 2012 series makes her a young teen, as old as the turtles themselves.

!! Casey Jones
->An eccentric vigilante who fights crime with various sporting tools (baseball bats, hockey sticks, etc.) Tends to have the most in common with Raphael.
->'''Appears in''': Most incarnations.

* AffectionateParody: Of [[NinetiesAntiHero Ninties Anti-Heroes]] according to WordOfGod.
* AxCrazy: In the Fred Wolf cartoon (well, as Ax Crazy as anyone in that 'toon was ''allowed'' to be).
* {{Badass}}
** BadassNormal
** HeartbrokenBadass: After Gabrielle's death in the comics.
* BashBrothers: With Raph.
* BatterUp
* TheBerserker: Initially.
* BigBrotherMentor: He becomes this to Raph in the 4th movie with both of them using the other as a sounding bard for their respective issues.
* BigDamnHeroes: Gets to do this occasionally, like in the first live-action movie.
* BoisterousBruiser
* BrooklynRage
* {{Catchphrase}} / BattleCry: "'''GOONGALA!!!'''"
** In the 4Kids cartoon, it's revealed that the young turtles were teaching him all about martial arts and fighting (although they never found out) and each took turns to teach him what they knew. The cry comes from when Mikey was training him and told him to say "Gorogoro-sama!" (translation: Lord Thunder). But since Casey couldn't pronounce it correctly, he made his famous phrase.
* CombatPragmatist: Even the bad guys admit that Casey just plain ''fights dirty''.
* DarkAndTroubledPast: For the 4Kids cartoon, [[RetCanon although aspects of it were later adapted to the original comic book incarnation]].
* DemotedToExtra: Fred Wolf cartoon, the 3rd movie.
* DropTheHammer: In the comics Casey carried, as a weapon of last resort, a sledgehammer (along with regular croquet mallets).
* EmbarrassingFirstName: Arnold. Casey is his middle name, nickname, or derived from his middle initials (K.C.) depending on the incarnation.
* {{Expy}}: Vocally, of Creator/ClintEastwood (specifically Film/DirtyHarry) in the Fred Wolf cartoon.
* TheFaceless: Fred Wolf cartoon.
* [[FireForgedFriends Fire-Forged Friend]]: His friendship with Raphael consistently begins this way, and leads him to befriending the other turtles.
* HeWhoMustNotBeSeen: Aside from being mentioned in the last issue of the [[GrandFinale Year of the Turtle miniseries]], Casey Jones never appeared in [[TeenageMutantNinjaTurtlesAdventures the Archie Comics series]].
* ImprobableWeaponUser: Hockey sticks, baseball bats, golf clubs, croquet mallets, cricket bats...
** The last being really amazing because you gotta know what a crumpet is to understand cricket!
** Casey, at one point, weaponizes a ''[[UpToEleven freakin' garbage truck!]]'' The movies drop subtle hints that while a poor fighter with his own hands with a weapon he's pretty much unbeatable.
* IKnowMaddenKombat: Casey uses sports equipment as his main weapon.
* JerkWithAHeartOfGold
* {{Leitmotif}}: 4Kids cartoon.
* MaskPower: When going into action, Casey usually wears an old-style hockey mask.
* OutOfFocus: Nick cartoon. He finally appeared in season 2.
* OvershadowedByAwesome: 4Kids cartoon.
** TookALevelInBadass: In ''TMNT: Back to the Sewer''.
* YouGottaHaveBlueHair: 4Kids cartoon.

!! Leatherhead
-> A mutant alligator/crocodile (depending on the incarnation) who fights, then befriends the turtles. Generally the subject of a lot of abuse.
->'''Appears in''': Most incarnations.

* AdaptationalVillainy: His original cartoon incarnation was made a villain, and he starts out that way in the Archie comic until he becomes a Mutanimal.
* {{Animorphism}}: Archie comics.
* TheBerserker: Mirage comics, 4Kids cartoon. The 2012 Cartoon turns it UpToEleven.
* BerserkButton: in the 2012 Cartoon, the mere mention of the Kraang will put him in his berserker state.
* {{Catchphrase}}: "[[RaginCajun I guh-rantee!]]", Fred Wolf cartoon
* DarkAndTroubledPast: The 2012 cartoon incarnation, big time.
* EmotionalBruiser: The 4Kids cartoon was quick to show off just how tender-hearted he is in addition to how tough he is.
** The 2012 cartoon also portrays him this way.
* GeniusBruiser: Mirage comics, 4Kids cartoon.
* GutturalGrowler: 2012 cartoon.
* HeelFaceTurn: Archie comics.
* KilledOffForReal: [[spoiler:Archie comics.]]
* {{Metamorphosis}}: From human to humanoid alligator in the Archie comic book, from alligator to humanoid alligator everywhere else.
* RaginCajun: Fred Wolf cartoon.
* ThoseTwoBadGuys: Every episode that featured him in the Fred Wolf cartoon(with the exception of his debut appearance) had him paired with the Rat King.
* YouCantGoHomeAgain: In the Mirage and 4Kids cartoon continuities, Leatherhead initially yearns to rejoin the Utroms.


!! Professor Honeycutt/The Fugitoid
-> A scientist whose mind was accidentally transferred into a robot's body, and is forced on the run by groups who would use his inventions for their own purposes.
->'''Appears in''': Mirage comics, 4Kids cartoon, IDW Comics.

* BadassBookworm
* BrainUploading: The most commonly accepted explanation for his existence, although doubts are eventually raised as to whether this is the case.
* JustAMachine: Although it's not true, he is considered this by The Federation.
* InstantAIJustAddWater (Mirage): The alternate explanation as to his origins.
* TheProfessor
* TookALevelInBadass: Once he gets his battle form in volume 4 of the comics.
* TransformingMecha: In volume 4 of the comics. Transformations include his battle form, and wings that allow him to fly.


!!Renet
-> An apprentice "Timestress" whose job it is to oversee and protect the timestream.
->'''Appears in''': Mirage comics, 4Kids cartoon

* CharacterDevelopment: (Mirage) Initially a ditzy, irresponsible and overly impulsive girl, she eventually evolves into a mature, responsible and self-reliant woman -- after having spent some time as grim-faced, solemn and reluctant. What makes it confusing is that, thanks to her traveling back and forth through time, we don't necessarily see this development in chronological order.
** In fact, we're informed that her parents originally made her take the job as an apprentice timestress in the hope that she would undergo some much-needed CharacterDevelopment.
* DeusExMachina: In the Mirage comic ''Juliet's Revenge'' the fully-adult, post-CharacterDevelopment Renet plays this role (having changed so much that the Turtles don't recognize her at first). For the most part, however, she averts this.
* TheDitz: In her pre-CharacterDevelopment appearances.
* DumbBlonde: Again, pre-CharacterDevelopment she's the ''embodiment'' of this trope.
* ForgottenPhlebotinum: She's completely and inexplicably absent from the ''Fast Forward'' season of the 4Kids cartoon, where the Turtles are stuck in the future -- because if she'd appeared she could instantly have fixed their predicament.
* MsFanservice: (Mirage) About the only thing that stays consistent about her appearance is her [[MostCommonSuperpower huge breasts]] and tendency to wear skintight (and sometimes rather revealing) clothes.
* MostCommonSuperpower: It's especially prominent in the Mirage comic (especially if Jim Lawson is drawing her), but the 4Kids cartoon version is notably endowed as well.
* ShoutOut: The third movie prominently features a time travel scepter that looks very similar to Renet's.
* TimePolice
* TookALevelInBadass: (Mirage) It's a long way from the DistressedDamsel we're first introduced to, to the nearly god-like woman who shows up to save the Turtles from certain death.

!!Mondo Gecko

->A skateborading gecko who is friends with Michaelangelo
->'''Appears in''': Fred Wolf Cartoon, Archie Comics

* HeelFaceTurn: In the Fred Wolf crtoon, he used to be a criminal
* KilledOffForReal: [[spoiler: Archie comics]]
* {{Metamorphosis}}: gecko to anthro gecko (Fred Wolf), human to antho gecko (Archie)
* NonMammalianHair
* SoapboxSadie: Archie comic
[[/folder]]

[[folder:Villains]]

!! Oroku Saki/The Shredder
-> A Ninja Master with ties to the New York underworld, and the franchise's most visible villain.
--> Note: While all Oroku Sakis are Shredders, not all Shredders are Oroku Sakis.
->'''Appears in''': All incarnations.

* [[ArchEnemy Arch-Nemesis]]
* AdaptationalVillainy: The 4Kids version is far more malicious than any other versions. The Nickelodeon version is also a nasty piece of work.
* AscendedExtra / BreakoutVillain: In the very first comic, he perishes. In all other media (save ''Next Mutation'', the 3rd and 4th Movie, and seasons 9 and 10 of the Fred Wolf show), he's the main nasty.
* AuthorityEqualsAssKicking: As many entries here show, he's tough enough to prove why the Foot have him as leader.
* BackFromTheDead: [[spoiler:Mirage comics, 2nd movie, 4Kids cartoon, IDW comics.]]
* {{Badass}}: Depending exactly how much according to the incarnation, but he usually is at least able to handle all the Turtles of his own in a fight.
** AdaptationalBadass: The movie, 4Kids and Nickelodeon versions are ''far more'' capable and dangerous than the Mirage or Fred Wolf versions of the character.
** BadassNormal: With the exception of [[spoiler:the Utrom and Tengu Shredders in the 4Kids cartoon]], all versions of the Shredder are perfectly normal humans, yet remarkable fighters.
* BadBoss
* BigBad
** BigBadDuumvirate: With Krang in the Fred Wolf cartoon.
** BigBadEnsemble: So far sharing this with the Kraangs in Nickelodeon version, as both of them have served as the main reacurring threats and both playing a part in the turtles' origin.
** BiggerBad: Mirage, posthumously
** TheDragon: To Karai in the Mirage version not that it would have stopped her from using the title of Shredder herself in the Image Comics' non-canon volume of the Mirage version if Mirage Studios deemed that volume Canon and followed up on it.
* BladeBelowTheShoulder: His trademark weapon.
* CatchPhrase: 4Kids cartoon: "None of you will leave here/this place alive!"
** As Leonardo later points out "[[LampshadeHanging Seems like he's always trying to make sure we never leave anywhere alive."]]
** Also, in both the comic and the 4Kids cartoon: "Now, come and face your doom!"
* ChuckCunninghamSyndrome: He is not even mentioned in the third film.
* CompositeCharacter: In the first movie and the Nickelodeon cartoon, it is Saki himself who fights Yoshi over the love of Tang Shen, as opposed to his brother Nagi.
** In the 4Kids cartoon, [[spoiler:he's a hybrid of his usual self and Krang]].
* CorruptCorporateExecutive: 4Kids cartoon.
** Briefly in the Fred Wolf cartoon, as chairman of Octopus Inc.
* DarthVaderClone
* DeadPersonImpersonation: [[spoiler:4Kids cartoon]].
* DemotedToExtra: In Next Mutation, the third and fourth movies, most of the later issues of the Archie Comics, and the ninth and tenth seasons of the Fred Wolf animated series.
* TheDreaded: (4Kids Version) Even after defeating him several times, just hearing that Ch'rell is involved in something is enough to make the turtles nervous about their chances of survival.
** The Nickelodeon version seems to be on his way to be this as well. ''Splinter'' had a nightmare of him slaughtering the turtles.
* EvilIsHammy
* EvilLaugh
* EvilOverlord: [[spoiler:Tengu]], 4Kids cartoon.
** The Utrom Shredder was one in an alternate BadFuture. Even before that there was an episode in the 1987 cartoon with the same premise of Shredder being ruler of the world in a BadFuture, however, due to the decay he suffered in that version, he was more inept than evil on that occasion and even wanted to go to a world where he wasn't ruler.
*** In the real world in the Fred Wolf cartoon, however, he seemed to be quite competent as the chairman of a large corporation (Octopus Inc) which he took over, and had some success.
* EvilVsEvil: In The 4Kids cartoon The Utrom Shredder went up against The Tengu Shredder also in the beginning of the final season when The Turtles are traveling through time they come across a battle between The Utrom Shredder, The Cyber Shredder, and The Tengu Shredder. And in Turtles Forever The 1987 Shredder and Krang team up with The Turtles and Karai to take down Ch'rell The Utrom Shredder
* FlunkyBoss: The 2003 version almost always has some goons the Turtles have to fight through first before engaging him. In fact, almost every fight with him on his terms has him either using Foot ninjas to wear down the enemy before he arrives, or to distract them so he can launch surprise attacks.
* GenreSavvy: 4Kids cartoon. Doesn't automatically assume the turtles are dead when NeverFoundTheBody occurs, unless he has definitive proof of it. Refuses to believe a robot masquerading as Splinter will fool anyone for a second. Will put aside his personal grudge for the turtles to work alternate angles in his schemes from time to time, unless they REALLY irritate him. What prevents him from being DangerouslyGenreSavvy is that he fails to recognize that both his daughter's increasing conflicting loyalties and pulling a YouHaveFailedMe on minions, (the same minions mind you), will eventually come back to bite you in the ass. Lastly, as Leonardo put it; "The one constant in the multiverse is the Shredder's big fat ego."
* HealingFactor: [[spoiler:4Kids cartoon]].
* HoistByHisOwnPetard: Mirage comics, ''Turtles Forever''.
* InvincibleVillain: In every version, the Shredder is intially too much for the turtles to handle, leaving Splinter to save the day.
** The Tengu Shredder in the 4Kids version took this to absurd levels. He can fire dark energy out of his hands, warp reality, materialize weapons out of thin air, heal himself, and transform into a dragon. Even before he [[FaceHeelTurn turned to a life of evil]], his martial arts skills were unmatched and during his first defeat, he could only be [[SealedEvilInACan locked in a sarcophagus]] rather than being killed since his dark powers were too strong. On top of all that [[spoiler: the only person who could severely weaken him to give the turtles a fighting chance was Yoshi, someone who was '''already dead'''.]]
* KilledOffForReal: Mirage, [[spoiler:all incarnations in 4Kids (except Karai)]]
* KnightOfCerebus: In all adaptions except the Fred Wolf series (while still a potential threat and skilled at martial arts, he was just as silly as everyone else) and Mirage comic (which was already pretty dark).
* LargeHam: Just about every incarnation of the character is.
** In the Fred Wolf animated series, he is especially hammy in episodes where he is voiced by [[TheOtherDarrin Dorian Harewood]].
* LaughablyEvil: Fred Wolf cartoon.
* LeftForDead: A lot ([[spoiler:4Kids series]]), bordering on JokerImmunity. The turtles even lampshade that he never seemed to die.
* LegacyCharacter: Several characters end up taking the identity.
* {{Leitmotif}}: 4Kids cartoon.
* MobileSuitHuman: 4Kids cartoon.
* MindOverMatter: 4Kids cartoon.
* MultiLayerFacade: In The 4Kids cartoon, he's got a public identity which is Oroku Saki, the rich and well respected Japanese Businessman. Then he's rhe Shredder, a warlord who is using his public persona to gain power. And then his true identity originally only known by his adoptive daughter Karai is Ch'rell, an Utrom criminal who has been on Earth for over a millenium.
* NotQuiteDead: [[spoiler:4Kids cartoon.]]
* OmnicidalManiac: ''Turtles Forever'', where he's willing to destroy the entire multiverse, including himself, if it meant killing all existing ninja turtles. That includes his own daughter.
* OneWingedAngel: Super Shredder in the movies and video games during the Fred Wolf cartoon era.[[spoiler:Utrom]] Shredder simply has enlarged exo-suits, and the one he had in ''Turtles Forever'' could turn into a giant, [[spoiler:Demon]] Shredder can turn into a dragon. In the two-episode anime loosely based on the Fred Wolf cartoon, the Shredder was also able to use the Dark Mutastone to transform into the dragon-like Devil Shredder and the much larger Dark Devil Shredder in the first episode, as well as one of the Mirror Mutastones in the second episode to become Metal Shredder.
* PetTheDog:
** 4Kids cartoon. Overlaps with PapaWolf, surprisingly. He seems to hold genuine concern for his adoptive daughter Karai. Until she refused to let him kill the Turtles.
** In at least the 4Kids and Nickolodeon series, despite his track record for ''severely'' punishing failure Shredder often turns a blind eye to Karai's outright defying his orders, at most making empty threats about how she better not do it again.
* PhysicalGod: [[spoiler:Demon]] Shredder in the 4Kids cartoon.
* PragmaticVillainy: Nick cartoon. Despite Baxter Stockman's Mousers losing them a chance at finding the turtle's lair, Shredder thinks killing him would be wasting his talents he could use.
* PutOnABus: Fred Wolf and 4Kids cartoons [[spoiler:(Utrom)]].
** TheBusCameBack: Both Shredders return in TurtlesForever.
* RedEyesTakeWarning: 4Kids cartoon.
* ReallySevenHundredYearsOld: 4Kids cartoon (due to being an alien), IDW comics (due to alien ooze and magic).
* {{Reincarnation}}: In the IDW comics, Oroku Saki is the reincarnation of the founder of the Foot Clan, Tatsuo Takeshi.
* SecretIdentity
* ShouldersOfDoom
* SpikesOfVillainy
* SuperStrength: 4Kids cartoon.
* TakeOverTheWorld
* TinTyrant: 4Kids cartoon. While a few other incarnations come close (such as in the movies and the Nick cartoon), the armor and attitude of that one fit the trope better.
* TouchedByVorlons: 4Kids cartoon.
* VillainWithGoodPublicity: 4Kids cartoon.
* WeUsedToBeFriends: Wolf and Nick cartoon, with Yoshi/Splinter.

!! Karai
-> A high-ranking member of the Foot Clan(in Mirage comics she's the ''leader'' of the Foot).
->'''Appears in''': Mirage comics, Volume 3, 4Kids cartoon, 2007 animated film, Nick cartoon.

* ActionGirl: Can usually take any one of the turtles head to head, though not all four like Shredder frequently can.
* AmbiguouslyEvil: How ambiguously exactly varies with the versions, but she typically is this in all versions.
* AnimeHair: The Nickeldeon version; she has black hair in the front and blonde hair in the back.
* [[AntiVillain Anti-Villainess]]: Rarely holds any enmity towards the turtles, fighting them on Shredder's orders.
* AvengingTheVillain: Her motivation for fighting the Turtles in the 4Kids cartoon after they defeated Shredder.
* BrokenBird: In seasons 4 and 5 of the 4Kids 'toon.
* {{Co Dragon|s}}: After her introduction, she shares the role of TheDragon with Hun.
* CorruptCorporateExecutive: 4Kids 'toon.
* DaddysLittleVillain: In the 4Kids 'toon and Nickelodeon show, she actually is the Shredder's foster daughter.
* DeadpanSnarker: While the comic and 4Kids' incarnations of the character are mostly serious and stoic, the Nickelodeon version is much more inclined to taunt and snark, even in front of ''Shredder''.
--->'''Shredder''': I heard you had the occasion to slay Leonardo, but let him go.
--->'''Karai''': That's not true. He escaped.
--->'''Shredder''': I find that hard to believe.
--->'''Karai''' (grinning): He escaped from you, didn't he?
* DragonAscendant: 4Kids cartoon.
* EnigmaticMinion: 4Kids cartoon, 2007 movie.
* {{Foil}}: A ShadowArchetype to Leonardo.
* HeelFaceTurn: 4Kids cartoon, though it doesn't happens until season 5.
** Which extends to HeelFaceRevolvingDoor when she switches sides twice in ''TurtlesForever''
* HonorBeforeReason
* ItAmusedMe: The Nickelodeon version of the character doesn't really seems to care whether what she does is right or wrong, and is mostly concerned about finding entertainment. That includes fighting with Leo but letting him leave and trying to steal a sword from a collector.
* LadyOfWar
* {{Leitmotif}}: 4Kids cartoon.
* MyMasterRightOrWrong: 4Kids cartoon.
* RedEyesTakeWarning: 4Kids cartoon.
* SecretIdentity
* ShouldersOfDoom: 4Kids cartoon, as Shredder.
* SpikesOfDoom: 4Kids cartoon, as Shredder.
* TinTyrant: 4Kids cartoon, when she takes over the Shredder's mantle.
* {{Tykebomb}}: 4Kids cartoon, Nickelodeon show.
* UndyingLoyalty: This is, in the 4Kids Cartoon, what prevents her to make a HeelFaceTurn for most of the series; She genuinely respects the Turtles, almost has a friendship with Leonardo and knows to some extent that the Shredder's motives aren't exactly pure, but due to the role he played in her life, she feels like she owes him, and stays by his side no matter what. Even when he actually is defeated, she ends up blaming the turtles for it and going on a RoaringRampageOfRevenge against them. Eventually, it takes [[spoiler:the Shredder trying to destroy the Universe (him included)]] to make her leave him once and for all.
* TheVamp: In the Nickeldeon Cartoon, she has shades of this toward Leo.
* [[VillainWithGoodPublicity Villainess with Good Publicity]]: 4Kids cartoon.
* WildCard
* [[ManBehindTheMan Woman Behind the Man]]: In the Mirage Comics version she's this to the Shredder due to being the leader of the Foot.
* WorthyOpponent: To the Turtles in general, but typically to Leo.
* YoungerAndHipper: Seems to get younger in each adaptation. In the Mirage comics, she was old enough to have a teenage daughter. In the 4Kids, she appears to be a young adult; and the Nick shows, she's a a teenager the same age than the Turtles.

!! Baxter Stockman
-> {{Mad scientist}} and creator of the mouser robots. Never quite seems to remain whole (or even human, in some versions).
->'''Appears in''': Most incarnations.
* AnArmAndALeg: ...and an eye, and another arm and another leg and so forth...until he's reduced to a talking head in the 4Kids version.
* {{Animorphism}}: His Fred Wolf 'toon incarnation eventually gets turned into a fly.
* AntiVillain: Eventually, in the 4Kids cartoon. He started out as one in the Fred Wolf cartoon but went crazy when he became a fly.
* AttentionDeficitOohShiny: In the Fred Wolf cartoon, in his later episodes he would sometimes suffer from this due to having the mind and attention span of a fly.
* BackFromTheDead: [[spoiler:4Kids cartoon.]]
* BlackAndNerdy: Except in the 80's cartoon.
* BodyHorror: In 4Kids' "Insane in the Membrane," after four seasons of losing body parts, Baxter Stockman finally obtains a new body via cloning. Soon enough, however, he discovers that it's unstable, as his limbs start deteriorating and melting off. His mind had gone with it before being retrieved and placed back in his jar.
** His fly-man form from the Fred Wolf cartoon isn't exactly pretty, either.
* ButtMonkey: Gradually in both the Fred Wolf and 4Kids cartoons. The Nickelodeon cartoon does this right off the bat.
* BrainInAJar: Mirage comics, 4Kids cartoon.
* CloneDegeneration: 4Kids cartoon.
* TheDragon: He was briefly this to the Shredder in the Fred Wolf cartoon, prior to his transformation.
* EvilIsHammy: Especially in the comics, where he's his own scheming villain, but even in the cartoons he's often prone to giddy gloating even when nobody is listening.
* EvilMentor: For April in the 4Kids cartoon.
* ForTheEvulz: His original motivation in the comics.
* FourEyesZeroSoul
* HoistByHisOwnPetard (4Kids cartoon): In "Return to New York".
* HorribleJudgeOfCharacter: In the Fred Wolf cartoon, he agrees to help Shredder even though he approaches him on the streets in his full villainous garb and it gets worse from there. Even when Baxter turns into a fly as a result of Shredder sending him to Dimension X, as all it takes for Baxter to change from wanting revenge on Shredder to wanting revenge on the turtles is Shredder telling him that it was the turtles' fault.
* IJustWantToBeNormal: His motivation in both cartoons. Ironically in the 4Kids cartoon he actually does eventually get his body back while in the LighterAndSofter series, he ends up [[AndIMustScream trapped forever in dimensional limbo]].
* ImplacableMan: In the 2003 version at least; Lampshaded by Leonardo and Shredder:
-->'''Leonardo''': What do we have to do, to stop this guy?
-->'''Shredder''': I have asked myself that question many times.
* {{Irony}}: Interestingly, in the original TV Show, he ended up getting a FateWorseThanDeath, in a LighterAndSofter show, while in the darker show, not really mattering since ''Fast Forward'' still had Dark elements, Baxter gets a somewhat happier ending.
* KilledOffForReal: [[spoiler: Mirage]] series.
* {{Leitmotif}}: 4Kids cartoon.
* MadScientist
* {{Metamorphosis}}: From human to giant fly, in the Fred Wolf cartoon.
* NotSoHarmlessVillain: In the Nick cartoon, he treads the line between this and IneffectualSympatheticVillain.
* OmnidisciplinaryScientist: His primary field is usually robotics, evidenced by his famous Mousers, but he'll show expertise in everything from genetics to archaeology as suits the plot.
* RaceLift: Fred Wolf cartoon.
* ScarsAreForever: 4Kids cartoon.
* TheStarscream: To the Shredder, in the 4Kids cartoon.
** He also had shades of this in the Fred Wolf series, using the powers of the Eye of Sarnath for himself in "Curse of the Evil Eye" to get back at Shredder for bullying and abusing him, and later turning on him completely after turning into a fly mutant in "Enter the Fly".
* ThirdPersonPerson: The 4Kids version is prone to this when gloating.
* UsedToBeASweetKid: In the 4Kids series. He used to be a fairly benevolent and principled scientist too until his ego and arrogance got the better of him.
* WeCanRebuildHim: Mirage Comics, 4Kids series.
* WetwareCPU (Mirage Comics, 4Kids series): As loses more and more of his body, Baxter begins becoming this.


!! Krang
-> An alien general fighting a losing war, and who turns to Earth for assistance. A small, brain-like creature, he often uses a robotic exoskeleton to move around.
->'''Appears in''': Fred Wolf cartoon, Archie comics, IDW Comics, Nick cartoon (as "the Kraang").

* BigBad: [[BigBadDuumvirate Along with the Shredder]] (Fred Wolf series).
** BigBadEnsemble: With the Shredder in the Nick cartoon.
* BizarreAlienBiology: His brain, having been scooped out of its original skull, can survive perfectly well on its own in the open air and has primitive arms (tentacles), eyes and a fang-filled mouth in its own right.
* TheCameo: In one episode of the 4Kids cartoon.
* CanonForeigner: Began as a creation of the Fred Wolf cartoon, where he merely looked like the Utroms, but has since been used in other series.
* DarkLordOnLifeSupport: Krang's android body is a variation. He doesn't need it to survive, just needs it to survive as anything but a barely mobile brain-like creature.
* DittoAliens: They're a race of similar looking aliens, not unlike the Utroms, in the Nickelodeon series (spelled as "Kraang").
** This is actually a case of LostInImitation: the Fred Wolf Krang actually did ''not'' look so Utrom-like naturally; his body was destroyed, leaving him a disembodied brain, before he was exiled to Earth. His true form was... well, see ReptilesAreAbhorrent below.
* EvilSoundsDeep: In the Random House audiotape versions of the [[TeenageMutantNinjaTurtlesAdventures Archie Comics series]], Krang had a rather deep voice that sounded very similar to that of [[InspectorGadget Dr. Claw's]], as opposed to the higher-pitched voice he had in the Fred Wolf cartoon.
* TheExile: (Fred Wolf Cartoon, Archie Comics) Part of his backstory is that he's an exiled warlord from Dimension X.
* {{Expy}}: of the Utroms and Triceratrons.
* FatBastard: Rides a mech suit resembling one.
* GeniusCripple: Sure, he's a genius. (His IQ is in the ''900s'') But as a brain, there's not much he can do on his own. Without his biosuit, he's pretty much helpless.
* {{Jerkass}} / InsufferableGenius: Krang is brilliant, but not easy to work with. He insults and belittles Shredder all the time, and goes out of his way to make things difficult for his allies when he thinks he can get away with it. For example, in (Fred Wolf Cartoon) 'The Return Of The Shredder' while he allows Shredder to return to New York, but denies him any tech or help, forcing Shredder to work on his own. Then there's his reasons for preventing Bebop and Rocksteady to return as well;
-->"Because, I enjoy watching people and animals suffer! And you two are both!"
* LaughablyEvil: In the original cartoon and Archie comics.
* MarkOfShame: (Fred Wolf Cartoon) He was reduced to his brain-like state by the people who exiled him, and he is quite embarrassed about it.
* PutOnABus: Fred Wolf series, Archie Comics.
* ReptilesAreAbhorrent: In the Fred Wolf cartoon, the episode "Invasion of the Krangezoids" shows us what Krang originally looked like -- essentially a vaguely anthropomorphic Tyrannosaurus Rex with [[MyBrainIsBig an overlarge cranium]].
* SpellMyNameWithAnS: The namesake race in the Nickelodeon series spell the name as "Kraang" rather than "Krang".
* StarterVillain: Nick cartoon.

!! The Rat King
-> A man dressed up in rags and bandages who shares a rapport with rats. Varies wildly within incarnations--descriptions for each can be seen in [[http://en.wikipedia.org/wiki/Rat_King the other Wiki]].
->'''Appears in''': Mirage comics, Fred Wolf cartoon, Archie comics, 4Kids cartoon, Nick cartoon.

* AscendedExtra: He was a MonsterOfTheWeek who ''died'' in his first appearance. Didn't stop him from becoming one of the turtles' most prominent adversaries.
* AxCrazy: During his debut in both the Mirage comics and 4Kids series.
* BadassLongcoat: Wears one during his single appearance in the Red Sky seasons, "Wrath of the Rat King".
* BandagedFace
* BeastMan: Mirage Comics, 4Kids series.
* TheBeastmaster
* CloneDegeneration: 4Kids series.
* {{Cyborg}}: 4Kids series.
* DeadAllAlong: During the [[spoiler:"City at War"]] arc ([[spoiler:Mirage series]]).
* DependingOnTheArtist
* HealingFactor: As The Slayer (4Kids series).
* {{Invisibility}}: As The Slayer (4Kids series).
* KarmaHoudini: In the Fred Wolf cartoon, though subverted in "Leatherhead Meets the Rat King" when he ends up trapped in a cave-in, as well as in his last appearance where he is finally captured by the Turtles, and also episodes where he plays a neutral role, since he isn't really doing anything wrong then.
* KilledOffForReal: [[spoiler: Mirage]]
* MagicMusic: In the Fred Wolf series, where he used a flute to control rats.
* MindControl: Over rats, in the Fred Wolf series, Archie series.
** His 2012 version does this in a more creepy fashion even performing a MindRape on Splinter
* MixAndMatchMan: 4Kids series.
* SuperSoldier: His Slayer persona was designed to be one (4Kids series).
* SuperStrength
* ThoseTwoBadGuys: In some of his appearances in the Fred Wolf cartoon, he teamed up with Leatherhead.
* VillainExitStageLeft: In the Fred Wolf cartoons, he would often escape after the Turtles defeated him, and it was not uncommon for him to bail out in episodes where he teamed up with other villains. Averted in "Leatherhead Meets the Rat King" and "Wrath of the Rat King".

!! Bebop and Rocksteady
-> Human gang members who were mutated into a warthog and rhino respectively, and serve as henchmen to the Shredder. Neither of them are particularly bright.
->'''Appear in''': Fred Wolf cartoon, Archie comics, IDW Comics.

* AdaptationalBadass: While still idiots, the IDW incarnations of Bebop and Rocksteady are noticeably far more dangerous than their 1987 cartoon counterparts.
* {{Animorphism}}
* BecomingTheMask: In the Archie comics series, the animal part of their natures began taking over more and more. This actually ''increased'' their intelligence, while also making them more neutral and less evil.
* BlondesAreEvil[=/=]BaldOfEvil: Rocksteady had blonde hair in his human form, but he inexplicably went bald after he mutated into a rhino.
* {{Canon Foreigner}}s
* CharacterDevelopment: The Archie comics series gradually increased their intelligence and made them less evil as their animal natures took over more and more.
* CoolShades: Bebop.
* DualBoss: In a few of their video game appearances (namely the arcade games), they're fought as a pair.
* DumbMuscle
* ExpressiveMask: Bebop's sunglasses were sometimes depicted in this manner, most notably in the Archie comic books.
* {{Flanderization}}: While they weren't exactly geniuses in the first season, they were still extreme physical threats to the turtles, especially in their second appearance after being mutated. From that point on, they became more or less ineffectual against them, and even some humans.
* FriendlyEnemy: In their final appearance in the Archie comics series, they hijack the spaceship used by Krang and his henchmen to reach Earth, using their guns to "convince" the Turtles not to stop them. However, Bebop and Rocksteady cheerfully accept Leonardo's request to take Krang and his goons back to the prison planet they escaped from, before returning to the Eden-like planet they've made their new home.
* HarmlessVillain
* LaughablyEvil
* {{Metamorphosis}}
* TheMillstone: On many occasions Shredder may well have won if not for their bumbling. [[StatusQuoIsGod Of course then there would be no more show]]. [[spoiler: They even end up costing Utrom Shredder an otherwise clear-cut victory in ''Turtles Forever'']].
* MusicalThemeNaming
* PigMan: Bebop.
* PutOnABus: Fred Wolf series, Archie comics.
* TheQuincyPunk
* RaceLift: In the first issue of the Archie Comics series, Bebop's human form was depicted as Caucasian, though this was corrected in Archie and IDW's reprints of the comic. Bebop's human form was also made Caucasian for his figure in the Mutations toyline.
* RhinoRampage: Rocksteady.
* SaltAndPepper: Rocksteady's human form was Caucasian and Bebop's was African American.
* SimpletonVoice
* TeamRocketWins: Their final appearance in the Archie comics series has them convincing the Turtles not to fight simply by pointing their guns at them.
* ThoseTwoBadGuys

!! Hun
-> A hulking, tattooed gangster who serves as the leader of the Purple Dragons street gang.
->'''Appears in''': Mirage comics, 4Kids cartoon, Dreamwave comics, IDW comics.

* {{Animorphism}}: [[spoiler: To a mutant turtle, in ''TurtlesForever''.]]
* TheBrute
* CanonImmigrant
* {{Catchphrase}}: [[ThisIsGonnaSuck "Oh, crud"]] (4Kids series).
* TheDragon: Eventually becoming {{Co Dragon|s}} alongside Karai.
* KarmicTransformation
* LargeAndInCharge
* {{Leitmotif}}
* LightningBruiser: Don't let his size fool you, Hun is astonishingly fast--more than fast enough to be a match for the turtles.
* [[spoiler: MostGamersAreMale]]: [[spoiler: Size doesn't seem to matter for him.]]
* TattooedCrook: In the cartoon, he sports twin tattoos of the Foot and Purple Dragon symbols, removing the former after he leaves the organization for good. In the comic books, he sports a dragon tattoo on his right arm and hand, an one of a human vertebra over his left arm and back.
* [[spoiler: UltimateGamer386]]
* WouldHitAGirl: He was willing to hit April, hoping that losing her would cause the turtles to lose their fighting spirit. In ''City At War, Part 3'', Hun smacks Karai around with a '''support beam'''.

!! Slash
-> A humanoid turtle with a fondness for palm trees.
-> '''Appears in:''' Fred Wold cartoon, Archie Comics, IDW Comics, Nick cartoon.
* TheBerserker
* EvilCounterpart: To the turtles.
* EvilKnockoff / LaserGuidedTykebomb: In the IDW comics, Slash was specifically created to track down the turtles.
* HeelFaceTurn: In the Archie comics, where he eventually ends up with the Mutanimals.
* HeroicSacrifice: In the Archie comics, he fights Malignas' forces as her ship plummets into the sun, in order to give the turtles a chance to escape.
* WouldNotShootACivilian: In the Nick Cartoon.

!! Tokka and Rahzar
-> A snapping turtle (Tokka) and wolf (Rahzar) mutated by the Shredder.
-> '''Appears in:''' [[Film/TeenageMutantNinjaTurtles Films]], Fred wolf cartoon, 4Kids cartoon, Nick cartoon (Rahzar only).

* AdaptationalBadass: Rahzar's Nick cartoon incarnation is much faster and more intelligent than how he usually is portrayed.
* {{Advertised Extra}}s: In ''TurtlesForever''.
* {{Canon Immigrant}}s: From the movie to the Fred Wolf cartoon, more intelligent and more eloquent. They were also featured in the 4Kids cartoon via ''TurtlesForever'' and featured as bosses in ''[[VideoGame/TeenageMutantNinjaTurtlesTurtlesInTime Turtles In Time]]''.
* {{Continuity Cameo}}s: Their appearance in ''Turtles Forever''
* DualBoss: They were fought as a pair in Turtles in Time.
* DumbMuscle: In ''Secret of the Ooze'', they would have been cunning villains, had Professor Perry not tainted the ooze.
* ElementalPowers: In Turtles in Time
** AnIcePerson: Tokka
** PlayingWithFire: Rahzar
* EvilKnockoff: Tokka.
* {{Exp|y}}ies: Of Bebop and Rocksteady. In fact, they were created specifically for the second live-action movie because [[WordOfGod Eastman and Laird did not want Bebop and Rocksteady in it]].
* {{Man Child}}ren: "[[{{Narm}} They're BABIIEES!]]"
* MightyGlacier: Both tower over the Turtles, are [[SuperStrength super strong]] and [[NoSell shrug off damage like nothing]].
* SpikesOfVillainy: Tokka.
* TurtlePower: Tokka.

[[/folder]]

[[folder:Others]]

!!Hamato Yoshi
-> Splinter's owner, a martial artist whose fate at the hands of The Shredder gets the ball rolling. Sometimes he and Splinter are one and the same.
->'''Appears in''': All incarnations.

* {{Animorphism}}: His origin in the Fred Wolf cartoon, the Archie Comics, and the Nickelodeon cartoon.
* AscendedExtra: The 4Kids cartoon and incarnations where he is also Splinter.
* CompositeCharacter: He and Splinter are one and the same in several incarnations.
* DeathByOriginStory: Incarnations where he is not Splinter, the IDW comics.
* FacingTheBulletsOneLiner: "He who lives without honor, will end without honor." (4Kids cartoon)
* {{Metamorphosis}}: To a rat, in the Fred Wolf cartoon and Archie comics.
* OppositesAttractRevenge: Yoshi's love triangle with Oroku Nagi over Tang Shen would help to set up a CycleOfRevenge.
* PosthumousCharacter: In most continuities safe for the Fred Wolf animated series, the Archie Comics, and the Nickelodeon animated series.
* {{Reincarnation}}: In the IDW Comics, Splinter believes that he is the reincarnation of Yoshi.
* SparedByTheAdaptation: The Fred Wolf cartoon, the Archie Comics series, and the Nickelodeon cartoon, since in those versions, he became Splinter.
* TechnicalPacifist: In the IDW Comics.

!! Tang Shen
-> Yoshi's lover, who is murdered as part of his backstory.
--> '''Appears in:''' Mirage comics, films, 4Kids cartoon, IDW Comics, Nick cartoon.

* DeathByOriginStory
* HappilyMarried: Implied in the Nick cartoon to Yoshi, before her death.
* LoveTriangle: Is the object of affection for two suitors in nearly every adaptation. One of the suitors is Hamato Yoshi, and the other suitor is primarily Oroku Saki (though in the Mirage comics it was Saki's brother Nagi, and in the 2003 cartoon it was an entirely different character named Yukio Mashimi, who grew up alongside Yoshi and Tang Shen). She always chooses Yoshi, and the other suitor gets jealous. While there are variations in the story for what happens after that point, the one consistency is that Tang Shen always ends up dead by the end.
* MissingMom (IDW Comics): As far as is known, she is the only member of the Hamato family to not have been reincarnated.
** [[WildMassGuessing Unless it's April...]]
* PosthumousCharacter
* StuffedIntoTheFridge: Her only purpose in the narrative is to get killed.
* YamatoNadeshiko: Most notable in the 4Kids cartoon, where she's allowed to have lines and a semblance of a personality, but she is presumably one in other continuities as well.


!! Klunk
-> Michelangelo's pet cat, originally a stray that Mike found and adopted one Christmas.
--> '''Appears in:''' Mirage comics, Image comics, 4Kids cartoon.

* GenderFlip: Possibly. Is male in the Mirage comic, and is referred to as male when first appearing in the 2003 cartoon -- though in redesigns for the ''Back To The Sewers'' looks more female, and was even referred to as a "she" on the 4Kids website.
* KilledOffForReal: [[spoiler: Mirage]] continuity.
** Though [[spoiler: SparedByTheAdaptation, as he doesn't die in the 2003 cartoon.]]
* [[spoiler: SomeoneToRememberHimBy]]: [[spoiler: After his death, Mikey adopts one of the kittens Klunk fathered.]]
* TeamPet: Curiously enough, subverted. He's a completely normal cat who never gets involved in the stories and whose appearances are generally spent lying around on the floor or in someone's lap.
* [[WhatHappenedToTheMouse What Happened to the Cat?]]: When Shredder attacks April's apartment in issue 10, Klunk is nowhere to be seen, and isn't even mentioned when April, Casey and the Turtles escape. (This is doubly frustrating because he was explicitly shown to be in the apartment in the ''Leonardo'' special, which takes place ''immediately'' before.) He remains unmentioned for several issues before he shows up on Casey's farm with no explanation at all.

!!Wingnut and Screwloose

-> An alien bat and mosquito duo from the planet Huanu
--> Appears in: Archie comics, Fred Wolf cartoon, Nick cartoon (Wingnut only)

* BatOutOfHell: Fred Wolf cartoon
* GadgeteerGenius
* KilledOffForReal: [[spoiler:Archie]]
* LastOfHisKind
* MindControl: Fred Wolf cartoon
* SoapboxSadie: Archie
[[/folder]]


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