%% %% Zero Context Example entries are NOT allowed on wiki pages. All such entries have been commented out. Add context to the entries before uncommenting them. %%

Minor Characters of ''WesternAnimation/AdventureTime''

!!Regions in the Land of Ooo
[[folder:Candy People]]
!! Starchie

An inhabitant of the Candy Kingdom, distinguished by his hat, mustache, and the fact that he's a ball of starch. Starchie works as a gravedigger and runs his own late-night radio talk show.

-->Voiced by: Creator/TomKenny
* ButtMonkey: Bad things tend to happen to him, like getting thrown in the dungeon, attacked by zombies, or getting Freezer Burn Flu.
* ConspiracyTheorist: He takes calls from them on his radio show.
* TheCuckoolanderWasRight: Turns out [[spoiler:he was right about PB being replaced by a lizard imposter in "We Fixed A Truck".]]
* FakingTheDead: Faked his death and ran away to get away from Princess Bubblegum's intrusive surveillance. She then had him cloned.
* FelonyMisdemeanor: Being thrown in the dungeon for three hours by the Earl of Lemongrab. Starchie doubted he would even survive that long.
* {{Gasshole}}: Squeeze him and he'll fart.
* GoneHorriblyRight: The Ice King's pained howls free him from the Freezer Burn Flu, and after saying he feels healthy again, he immediately bulks up even more.
-->''Starchie's feeling healthy again. ''[Bulks up further]'' A bit ''too'' healthy if you ask me.''
* ImAHumanitarian: He can't help it. Flesh is delicious.
* LivingPolyhedron: As you'd expect from a living tapioca pearl.
* NiceHat: One of his distinguishing features.
* ThirdPersonPerson: Always seems to refer to himself in the third person:
-->''[Upon being sent to the dungeon]'' If Starchie lives that long.
* TookALevelInJerkass: While original Starchie was a kindly old man, his clone is a jerk.

!! Mr. Cupcake

The strongman of the Candy Kingdom, Mr. Cupcake is, as his name suggests, a giant cupcake.

-->Voiced by: Creator/DeeBradleyBaker

* BadassMustache: He sports a handlebar one.
* FeelNoPain: In an attempt to avoid going and living with Lemongrab for a few weeks so he wouldn't be so lonely, Mr. Cupcake broke his own arm. The only sound he made during the whole thing was a single grunt, which sounded more from effort.
* NakedPeopleAreFunny: In "Slumber Party Panic", while playing Truth or Dare, Chocoberry dares him to take off his wrapper.
* SesquipedalianLoquaciousness: Very well spoken.
-->'''Mr. Cupcake''': "Surely this frosted drink will soothe my fevered tempers." ''[Drinks milk shake when he hears Hug Wolf Finn]'' "Hello? Good heavens! A lycanthrope!"
* WorldsStrongestMan: He's supposedly the strongest of all the candy people.


A talking pinata, Manfried serves as a PA for the Candy Kingdom.

-->Voiced by: Maria Bamford


* BearerOfBadNews: Usually this for Princess Bubblegum
* BigWhat: In "Slumber Party Panic", upon hearing that they were going to smash pinatas. Finn quickly reassured him that he wasn't going to be smashed.
* CoolHorse: Or in this case, a cool pinata.

!! Banana Guard

The Royal Guard of the Candy Kingdom, serving as both police and bodyguards to Princess Bubblegum.

-->Voiced by: Pendleton Ward


* BladeOnAStick: They carry spears.
* ColorCodedForYourConvenience: [[spoiler:The Banana Guards of the past that appear in "The Vault" are color green.]]
* HumanShield: They literally use themselves as barricades in "Princess Cookie". Though maybe it's more "Banana guard" shield.
* NothingExcitingEverHappensHere: In "You Made Me", they didn't tell Princess Bubblegum about Lemongrab sneaking into Candy People's rooms because it would take away their "weird TV show", which they wanted to keep because, in their words, "Banana Guarding is boring".
* PoliceAreUseless: They rarely manage to acomplish their job protecting the kingdom. [[spoiler:Princess Bubblegum is so dissapointed by it that she assigns Root Beer Guy in charge of the Banana Guard]].
* PraetorianGuard: For Princess Bubblegum.
* YouAreNumberSix: In "The Thin Yellow Line", Finn meets one called Banana Guard 16, implying that the others are numbered as well.

!! Gumball Guardians

A pair of giant Candy People with gumball machine heads. Initially presumed to be statues, they sit at opposite ends of the kingdom blowing bubbles. They only act in the utmost circumstances, such as [[spoiler:The Lich going on a rampage in the city]]. They are also the Guardians of the Royal Promise, punishing those who break Royal Promises. [[spoiler:They were built by Princess bubblegum during the early days of the candy Kingdom as a way to defend the candy people from the bath gang and were responsible for the death of Shoko]].

-->Voiced by: TomKenny & Steve Little


* FelonyMisdemeanor: When Princess Bubblegum pleads for Finn, they decide to give him a less hot trial: Math questions.
* KillItWithFire: Their initial punishment for breaking a Royal Promise is to subject the promise-breaker to Trial by Fire.
* TimeStandsStill: They do this when you break a Royal Promise, causing everyone but the promise breaker and the one who demanded the promise to freeze solid.
* WaveMotionGun: Have a rather... ''[[NoKillLikeOverkill impressive]]'' weapon that has only been seen once while being piloted by Finn's mind-control hat.
* TheWorfEffect: If anything is strong or evil enough to get their attention (Like The Lich, or [[spoiler:Gunther]]), they get beaten fairly quickly.
* YourHeadAsplode: They suffer this when Finn gets the math question right.

!!Royal Tart Toter

The Guardian of the Royal Tarts, the only Candy Kingdom food worth killing for. He protected the Royal Tarts when they were escorted to the Annual Back Rubbing Ceremony, until he became senile and unable to discharge his duties. Sadly, his mental state has left him unaware of that, and he still believes he's carrying the Royal Tarts.

-->'''Voiced by''': Creator/StephenRoot


* AxCrazy: A non-villanous (or evil) example.
* BadassMustache: Subverted, it was once badass, but then it got torn.
* MacGuffinGuardian: His job was to guard the Royal Tarts in their journey from the Candy Kingdom to the Sacred Backrubbing Ceremony.
* TheMentallyDisturbed
* MindScrew: The infamous "Tart Toter speech":
-->'''Royal Tart Toter''': This cosmic dance of bursting decadence and withheld permissions twists all our arms collectively, but... if sweetness can win—and it can—then I'll still be here tomorrow to high-five you yesterday, my friend. Peace.
* SeriousBusiness: Guarding the Royal Tarts was. In the title card of "The Other Tarts" shows him having to fight off several people trying to grab the Tarts.

->Voiced by: "Graham Linehan's daughter" (real name withheld)

Another of Princess Bubblegum's experiments, Goliad is a candy-Sphinx built to rule the Candy Kingdom past Bubblegum's death. She soon turns out to be impressionable, with a questionable grasp of morals.

* AGodAmI: Not really a ''god'', but the sentiment is there.
* AmbiguousInnocence: Sure, her endgame is evil, but there doesn't seem to be a smidgen of malice in her. Which only makes her creepier.
* BodyHorror: Her third eye, which seems to unnaturally pop out of her forehead.
* CainAndAbel: Cain to Stormo's Abel.
* CompleteImmortality: Implied by Princess Bubblegum, but we only know for sure she's TheAgeless.
* ControlFreak: After seeing how Jake treated the Candy children, she planned on treating the whole Candy Kingdom this way too.
* CorruptTheCutie: Although it's implied that Goliad was unnaturally susceptible to it. Still, Jake was probably the worst person to leave in charge of her.
* TheCorruptible: [[NiceJobBreakingItHero Great going, Jake.]]
* CreepyChild: With an uncanny child-like voice coming from a huge monster and unstable psychic powers, she comes off as this.
* TheEvilsOfFreeWill: Her motive rant consists of her explaining that living things don't care for anything other than themselves, and that peace as we know it is a sham. Further, when she uses her psychic powers to get a child through an obstacle course, she demonstrated a belief that absolute control is the best way to get things done.
* GoneHorriblyWrong: With her powers and dedication to what she's taught, she had the chance to be the perfect successor to Bubblegum until Jake's bad leadership skills rubbed off on her and turned her into a power-hungry tyrant.
* HarmfulToMinors: Some of the first things she sees are Jake getting [[OrificeInvasion violated]] by an entire preschool class, [[TurnsRed and]] his [[DrillSergeantNasty retribution]].
* InTheBlood: Probably inherited Bubblegum's single-mindedness.
* LackOfEmpathy: She's a [[KidsAreCruel very young child]], after all.
* MindRape: Tries it on Finn, who is able to hold his own for an admirable amount of time, [[BigDamnHeroes before Stormo appears]].
* OrificeInvasion: She stuffs a whole bunch of people down Jake's throat with her psychic powers, in imitation of a bunch of children doing the same to him earlier.
* PeoplePuppets: Her main power is mind control.
* PhysicalGoddess: Has ''immense'' PsychicPowers and was made with the explicit purpose of being immortal. She's so powerful that Princess Bubblegum is scared if she threw a tantrum, she'd ''destroy the entire castle on her own'' and is so powerful the only thing that can fight her successfully is another of her kind.
* PsychicPowers: She can read people's minds and make them levitate.
* SealedEvilInADuel: Bubblegum states that she and Stormo are forever locked in a psychic stalemate.
* SiblingYinYang To Stormo, and ''also'' to Lemongrab.
* SocialDarwinist: "The weak bow to the strong, and such is harmony."
* {{Telepathy}}: She can move objects with the power of her third eye.
* UnexplainedAccent: Again as with Tree Trunks, her voice actor's British accent deviates from Ooo/Standard American for no in-universe reason.
* WeCanRuleTogether: She tries fervently to win Stormo over, but [[IncorruptiblePurePureness he isn't having it]].
* WithGreatPowerComesGreatInsanity: Due to Jake's improper tutoring she decides to take over the Candy Kingdom .


Yet another experiment, made to counter Goliad using Finn's hair as a base. Stormo quickly proves true to his heroic roots and traps Goliad and himself for all eternity, to save the Candy Kingdom.

* BigDamnHeroes: See Dynamic Entry.
* BodyHorror: The third eye, which works the same as Goliad's.
* CainAndAbel: Abel to Goliad's Cain.
* DynamicEntry: He rushes in just in time to save Finn and the Candy Kingdom from Goliad.
* GoodCounterpart: Based on Finn's DNA rather than Bubblegum's.
* HeroicSacrifice: Locks himself and Goliad in [[SealedEvilInADuel an eternally stale-mated psychic battle.]] Truly impressive in that he doesn't even hesitate to do so.
* InTheBlood: Is every bit as noble and heroic as Finn. And also has his blonde hair.
* PsychicPowers: With the power of his third eye, he can manipulate objects and other beings, just like Goliad.
* SiblingYinYang: It's unclear to what extent they are siblings, but they're as different as night and day. [[spoiler:The addition of Finn's DNA into Stormo's primordial goop is the only noted difference between them.]]
* {{Telepathy}}: See Psychic Powers.
* TheUnintelligible: Speaks entirely in birdlike screeching sounds, though Goliad seems to understand what he's saying.

!!Princess Cookie

A chocolate chip cookie orphan who wanted to grow up to be a princess, so as to spread love and joy. But Princess Bubblegum laughed when she heard this, because [[GenderBlenderName he's really a dude named Baby-Snaps]]. Eventually grew up and held a convenience store full of candy people hostage. Currently resides in a candy people mental institute.

-> Voiced by: Donald Faison

* AllOfTheOtherReindeer: Didn't really fit in with the other orphans.
* DrivenToSuicide: [[spoiler:But since he's a cookie, he just cracked apart. [[UnexplainedRecovery He got better, though]].]]
* GenderBlenderName: As mentioned above.
* NotEvilJustMisunderstood: He never wanted to hurt anyone, just be a princess and make others happy as his childhood hero Princess Bubblegum had to his friends and himself.
* ThemeNaming: His chips, which can separate from him and act independently, all have names like Chipolina and Chipler.


One of Princess Bubblegums many suitors, Braco is the the third generation of his family to become a suitor after his father ascended. At the age of twenty one he was the yougest suitor by far, with the oldest being over three-hundred. He looks like a normal human except for his skin color and the crystal like candy on his head. His whole personality revolves around his intense infatuation with Bubblegum.

-> Voiced By: Johnny Pemberton

* AmbiguouslyHuman: Looks like a normal human except for skin color and sugar crystals in his head.
* BodyHorror: Ogdoads spell makes him into a hidious monster, but see below...
* DealWithTheDevil: With the shadow creature Ogdoad
* DoggedNiceGuy: {{Deconstructed|Trope}}. His efforts are expressly against the princess's wishes and bring him nothing but pain.
* EvenTheGuysWantHim: The effects of Ogdoads spell causes ''everyone'' to love him.
* TooDumbToLive: Every bad thing that happens to him physically is because he is so infatuated with Bubblegum that he doesn't think things through; which includes jumping into a fire pit and accepting [[DealWithTheDevil Ogdoad's]] offer despite the demons warning.

!!Root Beer Guy / [[spoiler:Dirt Beer Guy]]

A background character who ends up the focus of the episode "Root Beer Guy". A Candy Kingdom telemarkater and wannabe mystery writer, he spies Finn and Jake kidnapping the princess once night and investigates the case despite the concerns of his wife Cherry Cream Soda Girl. [[spoiler:As it turns out, the kidnapping was all staged to test the Banana Guards, who not only horribly failed the case, but had Root Beer Guy handcuffed. As a result, Root Beer Guy was promoted to the head of the Banana Guards.]]

-> Voiced by: Jack Pendarvis

* ADayInTheLimelight: "Root Beer Guy" is his.
* BackFromTheDead: [[spoiler:A [[LightningCanDoAnything bolt of lightning]] strikes his remains and he comes back as Dirt Beer Guy]].
* CameBackStrong: [[spoiler:When he is resurrected as Dirt Beer Guy, he gains zombie super strength]].
* CharacterDeath: [[spoiler:Dies while helping to seal Derwin in "Something Big". While some of the candy people are restored after Darren is killed, Root Beer Guy is the only one still dead.]]
* DaChief:[[spoiler:At the end of his debut episode, he become this to the Banana Guards.]]
* HappilyMarried
* HardboiledDetective: Wants to be this.
* HeroicSacrifice: [[spoiler:He's killed putting up a dome around Darren and Maja.]]
* JumpedAtTheCall
* OnlySaneMan: [[spoiler:Becomes this to the Candy Kingdom police due to being made head of the Banana Guards.]]
* OurZombiesAreDifferent: [[spoiler:Sort of a zombie; he was revived via a lightning bolt, and assimilated with the soil he was buried beneath.]]


-> Voiced by: Creator/RainnWilson

A robotic gumball machine and a mysterious, masterful swordsman who lives out in a junkyard. He far surpasses Finn and the blade of grass by skill alone in their first fight. Though reluctant to train Finn at first, he agrees after Finn does him a long needed favor. [[spoiler:He then reveals to Finn that he is the last of an elite force of gumball machine police-bots that Princess Bubblegum massacred a long time ago following a mass lapse in their discipline. When Finn reveals his existence to Bubblegum, she sends a squad to the junkyard to ambush Rattleballs. He incapacitates all of them but leaves them alive, and after thus proving his skill and re-pledging his loyalty to Bubblegum, she hires him as a vigilant watch over the night in the Candy Kingdom]].

* BadassNormal: Acquired his skills through centuries of constant training rather than just his programming.
* InTheHood: When he first fights Finn, [[spoiler:as well as after Princess Bubblegum hires him as a secret night watch over the Candy Kingdom]].
* LastOfHisKind: [[spoiler:Bubblegum crushed the rest and attempted to recall him as well.]]
* LawyerFriendlyCameo: He's a gumball machine on a Cartoon Network show who, [[WesternAnimation/RegularShow like the employees of a certain other gumball machine on a Cartoon Network show]], says the word "[[IncrediblyLamePun eggscelent]]".
* MasterSwordsman
* MechaMooks: [[spoiler:He and the other Rattleballs were basically an army of candy-sized Gumball Guardians.]]
* MeaningfulName: See those gumballs? [[GettingCrapPastTheRadar The ones where his testicles would normally be?]] They rattle.
* TheMentor: To Finn.
* OldMaster
* ReallySevenHundredYearsOld: [[spoiler:He was built a while after the radioactive river from "Shoko" was gone, but when Bubblegum created him, the Candy Kingdom still wasn't finished and the Banana Guards were still green]].
* SecondLawMyAss: [[spoiler:He had to use all of his willpower to turn away from the wall, look at the massacre, and escape. This is a rare instance when the trope is given to a good-aligned robot who isn't an {{anti hero}}ic {{jerkass}}]].
* SlidingScaleOfRobotIntelligence: Probably a Grade 3, but he makes up for it as a BadassNormal.
* TechnicalPacifist: [[spoiler:When Bubblegum thinks he's slain her entire ambush squad, the squad is revealed to be bruised but alive, thus demonstrating both his skill and his self-control]].
* ThreeLawsCompliant: He interprets the First Law loosely (see TechnicalPacifist, above), plays the [[ICannotSelfTerminate Third Law]] straight [[spoiler:while the rest of his kind walk straight to the crusher]], but...


A Candy Person who accompanies Finn, Jake and Bubblegum on a mission

--> Voiced by: Andy Merrill

* ChronicHeroSyndrome: He is more than willing to sacrifice himself to save Princess Bubblegum. Even if she's not actually in danger.
* CloudCuckooLander: His behavior is... strange, to say the least.
* CloningBlues: Princess Bubblegum clones him every time he dies.
* TheExile: [[spoiler:PB makes him leave the Candy Kingdom after the events of "James II." No one will miss him.]]
* HeroicSacrifice: He lets himself be killed by the Ooze Monsters so that PB, Finn, and Jake can get away.
* FakingTheDead: [[spoiler:He fakes his death twenty-five times to get medals.]]
* FusionDance: [[spoiler:All of the clones fuse into one being at the end of "James II".]]
* GloryHound: [[spoiler:He fakes his death just to collect medals.]]
* IJustWantToHaveFriends: [[spoiler:The original reason that he starts faking his death- so that Bubblegum will clone him and he'll have a new friend to hang out with. After that, it just becomes about the medals.]]
* TheyKilledKennyAgain: He's died defending Bubblegum at least twenty-five times. [[spoiler:Or so it seems.]]
* WhatMeasureIsANonHuman: Bubblegum lets him sacrifice himself rather than let Finn do it, because he's made of candy and can be easily cloned, while Finn can't.

!! Colonel Candy Corn

An retired officer in the Candy Kingdom military. [[spoiler:Commands the Banana Guards after Root Beer Guy's death.]]

-->Voiced by: Keith Ferguson

* BadassMustache
* ColonelBadass: Battles Darren's monster soldiers with a saber.
* DaChief: Of the Banana Guards, [[spoiler:after Root Beer Guy's death.]]
* TheGeneralissimo: Declares a military dictatorship in the Candy Kingdom when Princess Bubblegum is feared dead.
* MayDecemberRomance: He's looking for one of these, hoping for a "young woman with an old soul".
* OldSoldier
* RetiredBadass: Until "Something Big" forces him out of retirement.
* TyrantTakesTheHelm: Very briefly in "The Pajama War".

!! Crunchy

A candy person.

-->Voiced by: Creator/TomKenny

* AccidentalHero: [[spoiler: He kills the Hierophant, an extremely dangerous vampire, by bumping into him.]]
* BackFromTheDead: He explodes in fear in "Something Big", but a title card at the end reveals that he got put back together.
* TheDogBitesBack: [[spoiler: He knocks the King of Ooo into a fireplace and melts him when he tires of the King's abuse.]]
* HuntingTheMostDangerousGame: The King of Ooo hunts him for sport during his reign as princess.
* TheStarscream: Under Colonel Candy Corn's brief dictatorship.
* TheUsurper: Twice. First from Colonel Candy Corn when Princess Bubblegum briefly disappears, and then [[spoiler: from the King of Ooo when the Candy People turn against him.]]
* VocalDissonance: His voice is impressively deep and scratchy given his appearance.

!! Neddy

A candy dragon who lives in the depths of the Candy Kingdom, suckling on the roots of the candy tree and secreting candy juice that the rest of the Candy Kingdom uses for bathing and healing. He's also Princess Bubblegum's brother.

-->Voiced by: Andres Salaff
* AmbiguousDisorder: Despite being a huge candy dragon, Neddy is reclusive and has a crippling fear of everyone and anything who isn't his sister Princess Bubblegum. PB is well aware of how different Neddy is from most people:
-->People are built different. We don't need to figure it out, we just need to respect it. Maybe he likes his own company better than I like mine.
* ImmortalImmaturity: He's as old as PB, but he's extremely infantile in mentality, and he only takes comfort in suckling on the roots of the candy tree and being with his sister.
* MadwomanInTheAttic: Played with; Princess Bubblegum keeps him hidden away not to forcefully keep him away from everyone, but to keep him safe since he's so sensitive and so terrified of everyone and everything. He really just wants to be left alone to suck on the candy tree roots, which lets him provide the Candy Kingdom with precious candy juice.
* OurDragonsAreDifferent: He's huge and made of gum, for one thing. He also has tiny wings, his eyes are below his mouth, and he secretes precious candy juice by suckling on the roots of the candy tree.
* PoweredByAForsakenChild: The whole kingdom runs on the juices he secretes.

[[folder:Minor Princesses]]
!! Turtle Princess

The Princess of the Turtle Kingdom, and head of the Library of Ooo (which may be one and the same). Best friends with Lumpy Space Princess.

-->Voiced by: Steve Little

* {{Bookworm}}: She ''is'' a librarian, after all.
* EyesAlwaysShut: Her eyes only open a few times.
* LarynxDissonance: She's voiced by a man, rather like her best friend LSP.
* SingleWomanSeeksGoodMan: She's never had any success with men, which is what convinced LSP to write a book on dating. Fortunately, she pairs up with a vulture who'd been hitting on LSP earlier.
* TurtlePower: A turtle who's a princess ''and'' a head librarian.

!! Slime Princess

The Princess of the Slime Kingdom.

-->Voiced by: Maria Bamford

* DistressedDamsel: Frequently needs rescuing by Finn and Jake.
* ElementalEmbodiment: Of Slime according to "Elementals". OOO's elements are ice, fire, slime, and candy.
* MoleMen: The Slime Kingdom is underground.
* OneOfTheKids: In "Loyalty to the King", Slime Princess is playing in a sandbox when she meets the "Nice King".
* PrincessesRule: is the ruler of the Slime Kingdom

!!Ghost Princess (formerly Warrior Princess)
A dead Princess who is now a ghost.

--> Voiced by: Maria Bamford

* AscendToAHigherPlaneOfExistence: In the episode ''Ghost Princess'', after learning how she died.
* DatingCatwoman: She was accidentally killed by the leader of an opposing army named Clarence. The two of them were in love at the time, and continue to be in love after death.
* DistressedDamsel: Like most of the princesses, Ghost Princess largely existed to be rescued before ascending to the 50th Dead World.
* EarnYourHappyEnding: "Ghost Princess" had a very sweet one, which required death and post-mortem trauma from a couple characters, but was rewarded with two lovers [[AscendToAHigherPlaneOfExistence ascending to the next plane together]].
* GhostAmnesia: She doesn't remember her former life at first.
* LadyOfWar: As Warrior Princess.

!!Breakfast Princess

A princess of the Breakfast Kingdom.

-->Voiced by: GreyDeLisle

* AlphaBitch: Very stuck-up and condescending to LSP.
* AnthropomorphicFood: Made up of breakfast items, including little egg shoes.
* DistressedDamsel: Has gotten pretty used to it.
-->"Oh hey Finn, I've got another Ice King situation here."
* PlanetOfHats: The Breakfast Kingdom, pretty much.
* PrincessesRule: Her and her sister, Toast Princess, appear to be the sole royalty of The Breakfast Kingdom [[spoiler: as of "Princess Day", Breakfast Princess has lost the throne to her younger sister, Strudel Princess.]]

!!Wildberry Princess

The princess of the Wildberry Kingdom.

--> Voiced by: Maria Bamford

* AnthropomorphicFood: Looks like a berry.
* BerserkButton: In "Furniture and Meat" we learn that, yes, you can push hers. Jake tries to pay her gold in exchange for getting to sit on her head. Her response? [[spoiler:Confiscating all of Jake and Finn's gold, melting it down and planning to execute them by pouring it over them.]]
* BewareTheNiceOnes: Dear lord, don't let her timidness fool you. If she perceives herself as insulted, she will ''not'' take it well.
* DistressedDamsel:
** She is often seen being kidnapped by Ice King, much more frequently than most of other princesses than Princess Bubblegum, most likely because of her FragileFlower nature.
** In "Jake vs. Me-Mow," Wildberry Princess is the target of an assassin from the Guild of Assassins.
* PlanetOfHats: The Wildberry Kingdom: a kingdom where everyone is a berry.
* PrincessesRule: Apparently the only ruler of the Wildberry Kingdom.
* ShrinkingViolet: She speaks in a soft voice, and she's rather sensitive and [[FragileFlower easily prone to tears]].

!!Hot Dog Princess

A princess who rules over the Hot Dog Knights.

--> Voiced by: Maria Bamford

* AbhorrentAdmirer: After Finn saves her, she tries to kiss Him. However, he doesn't want to get kissed by her because he says that she smells like "old hot dog water".
* CloudcuckoolandersMinder: Instead of the knights protecting their ruler, most of the time it's the other way around.
* DistressedDamsel: She requires saving pretty regularly. Her knights are ''even worse''.
* PrincessesRule: Apparently the only ruler of the Hot Dog Kingdom.
* VisualPun: Instead of actual hot dogs, she and the Hot Dog Knights look like a cross between hot dogs and dachshunds--which makes them literal "wiener dogs".

!!Desert Princess

A princess who controls sand. She was found inside a Bag of Holding.


* ArtInitiatesLife: Desert Princess's specialty is making animated sand sculptures.
* CanonForeigner: Created for the comic book series.
* CoolCrown: Her crown is made of ice cream, with a cherry on top.
* DishingOutDirt: Can create objects from sand and then control them.
* FusionDance: The second issue implies that she is actually an amalgamation of various Candy citizens.
* LastKiss: When Desert Princess's sand clones are told to throw themselves in the giant hole they say they want a kiss from Finn first. After they get their kiss they dissolve into lifelessness without any further objection.
* PrincessesRule: Claims to rule the Desert Kingdom.

!!Old Lady Princess

A princess that The Ice King gets engaged to.

-->Voiced by Kerri Kenney-Silver

* EyeScream: Her eyes get painfully huge.
--> "I'm not crying, Finn. My tear sac is broken."
* MindControlEyes: You can tell she is hypnotized because when you examine her eyes closely enough you can see a miniature version of her behind bars in each one.
* OpenTheIris: The entirety of her eyes, white, iris, pupil and all get huge under mind-control.
* HypnotizeThePrincess: The Ice King gets her to accept his engagement with a cursed engagement ring.
* YoungerThanTheyLook: Old Ladies are their own race of people in Ooo, so Old Lady Princess may not actually be that old.

[[folder:Minor Wizards]]
!! Grandmaster Wizard

The ruler of Wizard City and judge of Wizard Battle.

->Voiced by: Creator/MauriceLaMarche

* CatsAreMagic: He turns people into cats, and usually has cats crawling all over him.
* TheArchmage: Appears to be the master of all wizards.
* BenevolentMageRuler: For the most part.
* EmeraldPower: His eyes are emeralds.
* TheMagocracy: Runs one in Wizard City, where only wizards are permitted.
* WizardBeard: He appears to be nothing but beard.

!! Abracadaniel

A low-level wizard who can only perform rainbow-based magic.

->Voiced by: Steve Little

* AmbiguouslyGay: He's extremely effeminate, all of his magic is rainbow-based, and he acts disgusted at the idea of kissing Princess Bubblegum.
* AndIMustScream: The Ice King trapped him in a block of ice in "Friends Forever". [[CanOnlyMoveTheEyes He can only blink]].
* BewareTheSillyOnes: He seems goofy and harmless, but he once attempted to kill Princess Bubblegum in a knife fight.
* IneptMage: All he can do is rainbow magic, and he can't do it very well.
* OddFriendship: With the Ice King.
* {{Whatevermancy}}: His rainbow powers.
* WhatKindOfLamePowerIsHeartAnyway: His magic is completely useless.

!! Ron James

The owner of Ron James' Spell Palace in Wizard City.

->Voiced by: Duncan Trussell

* IneptMage: Not at the same level as Abracadaniel, but his potions have a tendency to fail.
* MadeOfMagic: Insists that his spells are this. Princess Bubblegum disagrees.
* ShopKeeper: Of a magic store.
* SnakeOilSalesman: Bubblegum's impression of him.
* TotallyRadical: His way of speaking.

!!The Ancient Sleeping Magi of Life Giving

A being with life-giving powers, found dwelling in a dungeon. The Ice King seeks him out in order to bring his fanfiction to life.

-->Voiced by Dana Snyder

* {{Adorkable}}: "I brought ''tiny umbrellas!''"
* AnimateInanimateObject: He gives any inanimate objects life.
* DaddyIssues: His mental trauma over his abusive father screws up his magic, making all of the things he animates become evil.
* MommasBoy: But he can animate good things by thinking about his loving mother.
* PsychoactivePowers

!!The Secret Society

A secretive magical order made up of Bufo the Tadpole Wizard, Forest Wizard, and Laser Wizard. Ice King sometimes sneaks into their meetings.

* TheArchmage: Bufo runs the wizard academy in "Wizard."
* BadassCreed: Their oath.
* {{Druid}}: Forest Wizard's style of magic.
* FrickinLaserBeams: Laser Wizard's power.
* GoneHorriblyWrong: Their plan to gain additional powers by awakening [[AntiMagic Bella Noche]] did not go as planned.
* HumanSacrifice: They planned to sacrifice Abracadaniel in some sort of mystic ritual.
* MindHive: Bufo isn't the toad. Bufo is the tadpoles inside the toad.
* MagicalSociety: One of many exclusive wizard societies in Wizard City.
* TheOrder
* WizardingSchool: Bufo runs one of these.

!!Huntress Wizard

A female warrior wizard who lives a secluded life in nature.

-->Voiced by: Maria Bamford ("[[Recap/AdventureTimeS4E24ReignOfGunters Reign of Gunters]]"), Creator/JennySlate ("[[Recap/AdventureTimeS7E24FluteSpell Flute Spell]]")

* ActionGirl: Of course. Why else would she have such a name?
* AnimalMotif: An elk. She rides one, wears antlers, lives in the woods, and is stoic and dignified.
* ArcherArchetype: She can shoot arrows without a bow, likely due to magic.
* {{Druid}}: She used to be one before getting involved in magic.
* GreenThumb: She has leaf-like hair and can even transform into things like trees.
* InvoluntaryShapeshifting: She turns into a log when she sleeps. It's unclear if she does this deliberately, or is even aware that she does it.
* PromotedToLoveInterest: Only for one episode (so far?), but it's still a definite step up from minor background figure with a cool design.
* MindOverMatter: Rather then carrying a bow, she controls her arrows via telekinesis.
* NotDistractedByTheSexy: She's very good at maintaining direct eye contact with Finn... when he's bathing.
* TheStoic: Seems to act the stoic as much as possible, because hard meat don't get eat.


[[folder:The Lemongrab Earldom]]
!!Lemongrab 2
Lemongrab's clone. Created by Princess Bubblegum for the purpose of giving Lemongrab a companion.

-->Voiced by: Justin Roiland
* ButtMonkey: [[spoiler: Not initially, but by "Too Old", he had become this to the original Lemongrab.]]
* ClonesArePeopleToo
* CloningBlues: Lemongrab 2 was created to be a companion to the first one, and, despite their obnoxious personalities, are [[SubvertedTrope actually both very happy together with their family]] [[spoiler:[[DoubleSubversion until "Too Old"]].]]
* ColorCodedCharacters: To differentiate between him and Lemongrab, one wears grey and the other wears white.
* DefectorFromDecadence: [[spoiler:Lemongrab 2 in "Too Old" is rebelling against Lemongrab 1.]]
* DivergentCharacterEvolution: At first, Lemongrab and Lemongrab 2 are essentially the same in every way. In "Too Old" they're shown to have become different, but with disastrous consequences: though Lemongrab 2 has become nicer and learned the error of his ways, Lemongrab has taken ''major'' [[TookALevelInJerkass levels in cruelty]] and insanity.
* GoodParents: As evidenced in "All Your Fault" ([[BumblingDad despite him not really thinking through the situation he and his brother were creating for their new family, not just themselves]]), "Another Five Short Graybles", [[spoiler: and especially Too Old, Lemongrab 2 is a loving father to his many children, starkly contrasting the [[AbusiveParent direction]] Lemongrab 1 wound up going. This is most clearly ([[TearJerker and depressingly]]) demonstrated when he shares his food with one of his children, who'd just had his taken away, despite clearly being starved and sickly himself]].
* HairTriggerTemper: Though downplayed compared to his clone. [[spoiler: In "Too Old" it's nearly nonexistent, presumably because he's very, very weak from hunger and from being sick.]]
* HandicappedBadass: He later suffers from the loss of his legs, most of his health, and half of his head. That doesn't stop him from being a hero and a martyr for the cause of the lemon people.
** Well, he would have been a martyr, ''if he didn't survive inside of his brother's stomach''.
* {{Jerkass}}: In his earliest appearances, he comes across as being mildly annoying, but unlike the original[[AxeCrazy Lemongrab]], that's the only problem he appears to have. The "jerk" part seems nonexistent by the time of "Too Old", as he's nothing but nice and generous throughout the entire episode.
* KilledOffForReal: [[spoiler:So it seemed in ''Too Old'', but he survives inside Lemongrab's stomach for ''Lemonhope Story''. He actually dies when his brother explodes, but Bubblegum integrates the remains of both Lemongrabs into a single Franken-Grab at the end]].
* MoralityPet: Formally to Lemongrab. Grossly averted in "Too Old."
* NakedOnArrival: The first time we see Lemongrab 2, he's butt naked.
* OnlySaneMan: Well, compared to his clone in "Too Old", anyway. It's a fact that almost all of the lemon people (with the exception of Lemonhope) are totally nuts. The difference between Lemongrab 2 and Lemongrab is that Lemongrab 2 is very kind while his brother is not. Lemongrab 2 is definitely crazy, but not violent or a bad person.
* PapaWolf: To the bitter end.
* TookALevelInKindness: He was never a ''bad'' guy, but he was something of an intolerable, annoying prick, just like Lemongrab. He eventually stopped being quite as annoying, and became genuinely polite and friendly, even selfless.
* VocalEvolution: Over time his voice has gotten less cacophonic, and his speech styles more coherent and eloquent, such that by the time of Lemonhope Part 2 it's lost most of the jarring qualities that simultaneously became more exaggerated in Lemongrab 1. It emphasizes his character evolution into OnlySaneMan and selfless PapaWolf.


The eldest of the Lemongrabs's children. A lemon giant with a booming voice, he proves himself early on to be more sensible, and helpful, than his fathers. [[spoiler:He even sacrifices his own life to protect his family and all of the Candy People]]. In the words of Finn, Lemonjon is "all right."

-->Voiced by: Justin Roiland

* AmbiguousDisorder: He's awkward, has difficulty in processing and articulating his emotions, and has an unconventional manner of speaking. There's also the fact that he had a rather serious case of [[spoiler:cardiac arrest, which was only resolved when Finn and Jake punched his heart]].
* BigDamnHeroes: Literally.
* ChildrenAreInnocent: ''Oh yeah''.
* CloudCuckoolander: Not to the same extent as the earls, but he ''is'' a pretty strange dude.
* DarkIsNotEvil: His appearance is disturbing and he's pretty damn [[{{Gonk}} ugly]], but he's a downright wonderful guy.
* FinalSpeech: Gives a beautiful, eloquent, and heartbreaking one just before [[spoiler:he dies]].
--> '''Lemonjon:''' Whoa, hold the phone! What is this powerful new juice coursing thrumpst my core source? The juice aches. Is this the rumored ache of feeling? The feeling of caring unknown to lemons? New thoughts emerge... If I act, the candy people will suffer; if I don't, the lemon people will suffer! [[spoiler:The greater good demands but one course only! That I dissolve the bonds uniting me and become component to all]]!
* FirstTimeFeeling: "Is this the rumored ache of feeling? The feeling of caring unknown to lemons?"
* FunnyAfro: The lighter-colored, fluffy lemon candy piled atop his head gives him this appearance. It resembles a big perm divided into three slightly spiked-up sections.
* GagNose: He has ''two''. Why the Lemongrabs thought it was essential that Lemonjon have two noses has not been explained.
* GentleGiant: Absolutely. He's one of the largest Candy People ever to exist, and he's also perhaps the most selfless.
* TheGiant: He's as big as the whole castle, and is the castle, kind of.
* GiantMook: The Lemongrabs attempted to use him as this.
* {{Gonk}}
* HeartTrauma: Finn and Jake [[spoiler:punch his heart to attempt to kill him. Instead, this causes his heart to start beating, resulting in Lemonjon having an epiphany]].
* HeelFaceTurn: While he was never a villain, he seemed neutral, yet still willing to attack the Candy Kingdom. But he eventually TookAThirdOption [[spoiler:which resulted in his own death]].
* HeroicSacrifice: To save his family and the Candy People.
* KilledOffForReal: The second important character to [[spoiler:suffer the fate of permanent death]]- the first was [[spoiler:Billy]].
* LargeHam: " '''Mmmmmm... MENAGERIE!''' "
* LikeFatherLikeSon: "Three weeks dungeon." He seems to have inherited the pedantic speech of his fathers.
* LiteralChangeOfHeart: His heart actually [[spoiler:awakens]] when Finn and Jake punch it.
* LivingStructureMonster: He's so big he takes up the whole castle, and is essentially part of it.
* MoralDilemma: "If I act, the Candy People will suffer! If I don't, the lemon people will suffer!" He eventually takes a third option that saves everyone's lives [[spoiler:but his own]].
* TheNeedsOfTheMany: [[spoiler:His reasoning for his HeroicSacrifice.]]
* NoIndoorVoice: In a different way than the Lemongrabs. While the Lemongrabs are very shouty, Lemonjon tends to speak much more calmly, and doesn't yell. But Lemonjon is very loud, because he's a literal giant. He can't really help it.
* TakeAThirdOption: He [[spoiler:explodes and reverts to lemon candy to feed his starving family rather than attack the Candy Kingdom to steal their food]].
* {{Telepathy}}: He seems to have this ability. When Finn and Jake asked him about the location of the earls, Lemonjon closed his eyes, and said in a strained voice that he "sensed" that they were in the dungeon.
* TooGoodForThisSinfulEarth: "Man... That Lemonjon [[spoiler:was all right.]]"
* TorturedMonster: Although the Lemongrabs view him as a child, they did attempt to use him as a [[PersonOfMassDestruction weapon]]. And when he's slowly standing up, after months of literally being attached to the ground, he sounds like he's in pain.
* WackyParentSeriousChild: He seems much more down-to-earth and reasonable than his dads.
* WhatIsThisFeeling: Mentions this trope in his [[spoiler:final]] speech.
* YoungerThanHeLooks: He's a giant and he has a low, booming voice. But the Lemongrabs say that Lemonjon is "young," and only a child. [[spoiler:Which makes his untimely and sudden death all the more heartbreaking]].

!!Lemon Children
The strange-looking and eccentric, toddler-aged children of the Lemongrabs. They reside in Lemon Castle, and there seem to be dozens of the [[FreezeFrameBonus little pooters]].

-->Voiced by: Justin Roiland

* AffectionateNickname: According to the screenshot of Lemongrab’s brain, the earls affectionately call their babies “little pooters.”
* AmazingTechnicolorWildlife: The Lemon Children are a strange combination of person, plant, animal, and fungi- and they’re all various shades of yellow, orange, and green.
* AmbiguousDisorder: They all seem pretty “off,” but it hasn’t been made clear if they’re as bonkers as their dads yet.
* BabiesMakeEverythingBetter: According to the Lemongrabs.
* BabyTalk: The only word we could hear them say was “hungry” and "candy." For the most part, they just babble and shriek.
* BigScrewedUpFamily: Oh, ''yeah''.
* BodyHorror: Some of the Lemon Children are rather grotesque- limbless, disfigured faces, lumpy and misshapen.
* CarnivoreConfusion: When they are starving, they attempt to eat Finn and Jake. However, it strangely never occurs to them to eat each other, even though they are all mostly made of candy themselves.
* ChildrenAreInnocent: Toyed with. They seem to mostly be toddlers, but they’re enthusiastic about their dads’ plan to take over the Candy Kingdom.
* CloudCuckoolander: Obviously, given who their progenitors are.
* ConjoinedTwins: Some of them.
* CreepyChild: Finn and Jake seem to think this about some of the Lemon Children, especially the one whose face pealed back.
* CuteButCacophonic: Many of the Lemon Children are rather adorable in appearance, but they have high-pitched, shrieking voices.
* DysfunctionalFamily: Let's just say, they're about as functional as the [[WesternAnimation/FamilyGuy Griffins]] if they were all three times as insane, and lemons.
* EyelessFace: Some of them don't have eyes ''or'' faces. In fact, some of them are just lemons with wings attached.
* GagNose: Several of them have the long, pointy noses of their dads. Others have big, bulbous noses.
* {{Gonk}}: Some of the Lemon Children could be considered to be quite ugly.
* GreenEyes: The Lemon Child with the pealing face has green eyes.
* GrotesqueGallery: They're all twisted and lumpy.
* HasTwoDaddies: They are Lemongrab and Lemongrab 2's children, weird considering they're brothers), but regardless, they're a big happy family.
* ItRunsInTheFamily: Some of them seem pretty “special.”
* LastMinuteBabyNaming: The earls seem to name their children at the last minute. ''Seconds'' after they brought the candy seeds to life, Lemongrab jubilantly yelled, “Ha-HA! We’ll call you SEED-WAD!”
** The earls still haven’t decided whether their second-youngest child is named “Plop-Top” or “Dump-Dome.”
* LetsHaveAnotherBaby: The earls probably said this to each other at some point, and it just kept happening, over and over again…
* LikeFatherLikeSon: Many of them have the same eyes as their fathers, and many of them resemble lemons in some way.
* MassiveNumberedSiblings: Well... there ''are'' over twenty of them.
* NiceShoes: The multi-mouthed lemon child has a pair of little [[RealMenWearPink hot pink cowboy boots]].
* NippleAndDimed: Several of the Lemon Children have nipples and visible breasts (due to being chubby babies.)
* NoIndoorVoice: Possibly due to being children, possibly due to being the sons of the Lemongrabs. In one scene, Plop-Top, who had been sitting calmly the whole time, randomly opens his mouth to emit a high-pitched, piercing shriek. He then resumes looking calm.
* OneGenderRace: According to the Lemongrabs, all of their children are male.
* PettingZooPeople: They range from being strange-looking people to being anthropomorphic to looking like actual ''animals''.
* PintSizedKid: Some of them.
* PlantPerson: Some of the Lemon Children resemble plants or mushrooms.
* RoyallyScrewedUp: Assuming the Lemongrabs are brothers.
* SharedFamilyQuirks: Their tendency to scream at random intervals. Apparently, the earls view the screams of their children as “piercing songs.”
* TheScream: They take after their fathers in this department. Seems to be a lemon trait.
* ThatThingIsNotMyChild: Adorably averted. Many of the Lemon Children are downright grotesque-looking and deformed, but the earls love every single one of them and treat them all like their babies.
* TooManyBabies: Or in this case, ''way'' too many.
* TheUnintelligible: Because of their age, they can only communicate using one-word or monosyllabic sentences, strange noises, and shrieks.
* VocalDissonance: Most of them sound like how one would imagine the children of the Lemongrabs sounding- high, shrieky voices. But the tiny Lemon Child with the pealing face has a ''very'' low voice, which he uses to bellow continuously.
** Averted when said child appears later on and he has a high, squeaky voice.
* VomitIndiscretionShot: Seed-Wad barfs all over himself after the Lemongrabs make him.
* WaveOfBabies: The Lemon Children all mob Finn and Jake in a large herd, rubbing against them and attempting to chomp on them.
* WhatMeasureIsANonCute: Invoked when one of the Lemongrabs’s babies literally turns out to be a vomiting pile of colorful mush. They act like this child is the most precious and wonderful creature they’ve ever seen.
** Played pretty straight when the only lemon child the Princess shows any interest in is Lemonhope, who's the least UglyCute and strange of all them.

One of the lemon children, who unlike the rest of his siblings, is the least disfigured and is musically gifted, which makes Princess Bubblegum take interest in him and decides to take him to the Candy Kingdom against Lemongrab's wishes. He is, however, freed by Lemongrab 2 and the rest of the lemon children, believing he can one day return and free them from Lemongrab's reign.

--> Voiced by: Justin Roiland

* BookDumb: Princess Bubblegum tries to give him an education, but it doesn't leave much of an impression on him and he later admits that he faked learning how to read. Phlannel Boxingday remarks that Lemonhope learns with his heart, not with his head.
* TheCallKnowsWhereYouLive: His attempts to run away from his debt to the Lemon People, failed because of his guilty conciense.
* DarkAndTroubledPast
* ADayInTheLimelight: Has his own two-part episode.
* {{Foil}}: For Finn. They're both the same age more or less, and they're both seen as champions for their kingdom. But while Finn happily lives up to the challenge, Lemonhope is like a lot of kids in that he wants to be on his own and only did the right thing once because he felt guilty.
* HasTwoDaddies: Personality-wise, he's inherited traits from both.
* IJustWantToBeFree: His reason for leaving the Candy Kingdom and not staying to rule Lemon Castle after defeating Lemongrab. Makes sense since he spend most of his life locked in a bathroom.
* ItsAllAboutMe: Played with. Lemonhope wants nothing more than freedom, even if it means going his own way and leaving his family to suffer under the hand of his abusive father. On the other hand, he also recognizes that freedom entitles others to do whatever ''they'' choose, even if it isn't to his benefit.
* {{Leitmotif}}: ''Poor little Lemonhope...Sweet little Lemonhope''
* MeaningfulName: He is believed by all the Lemon Children and Lemongrab 2 to one day bring hope to all of them.
* MessianicArchetype: For the Lemongrab Earldom.
* OnlyKnownByTheirNickname: His given name is "[=BadLemonNoHope=]", but prefers "Lemonhope" and is only called that by Lemongrab.
* OnlySaneMan: Compared to all the other lemon people (with the exception of Lemongrab 2) who are totally nuts, which is part of the reason Princess Bubblegum shows any interest in him.
* SociopathicHero: While not really a bad guy, Lemonhope is primarily driven by his desire to be free to fulfill his own wants. Only when his subconscious guilt sours that freedom is he driven to help the people he owes his happiness to, specifically to be free of his debt to them.
* SharedFamilyQuirks: When Lemonhope yells at Phlannel Boxingday to stop his ship (thinking he's seeing his siblings coming out of a monster's mouth), it devolves into one of Lemongrab's signature screams.
* TheUnfavorite: Out of all their children, Lemonhope is Lemongrab's least favorite, to the point that he's kept locked in a bathroom.
* UngratefulBastard: Doesn't show concern with how Lemongrab is treating all his siblings as punishment for helping him escape.
* WalkingTheEarth: Does this for the next thousand years after freeing Castle Lemongrab.

[[folder:The Flame Kingdom]]
A mischevious creature who is an informant and ally of Finn and Jake. He is a flambit, a type of fire-creature that resembles a cat made of flame, but is so far the only flambit shown to be able to speak and use magic. He works for lumps of coal, which he eats.

->Voiced by: Creator/TomKenny
* AndYourRewardIsEdible: Characters are shown feeding him charcoal as payment for his services.
* BalefulPolymorph: "Incendium" implies that he, and all flambits, were created from normal fire elementals by Flame Princess in one of her tantrums.
* ExactWords: "I know just the skirt! And she's ''[[PlayingWithFire way hot!]]''
* TheGadfly: He intentionally obscures his intentions and withholds information in "Incendium" to force Jake to improvise, which he finds amusing.
-->'''Flambo:''' There, I cast Flame Shield on ya's. [[spoiler:Also I spat on ya's.]]
* TheInformant: He helps Finn and Jake keep tabs on the Ice King.
* InstantRunes: When casting.
* KillItWithWater: In the video game ''Flambo's Hot Mess.''
* MundaneUtility: Finn uses Flambo to light his flamethrower in "Business Time," and Princess Bubblegum uses him to light the grill for her Science BBQ in "The Real You."
* MySpeciesDothProtestTooMuch: Flambo's fairly nice if mercenary, but supposedly everyone in the Fire Kingdom is evil.
* PlayingWithFire: It may just be an extension of his natural body, but Flambo can keep things warm and set them on fire.
* PutOnABus: [[WordOfGod Andy Ristaino]] has [[http://www.formspring.me/skronked/q/354603947761094206 stated]] that Flambo is hard to get ahold of, explaining why he's not usually around to cast Flame Shield on Finn for [[spoiler:his dates with Flame Princess.]]
* ScreamsLikeALittleGirl: Lampshades this himself after Jake rescues him in "Incendium."
-->'''Flambo:''' Bet you thought I was a dame on account of my girlish screamin'.\\
'''Jake:''' (frustrated) I ''did'' think that.
* StatusBuff: The only magic ability he's shown so far was Flame Shield, which protects mortals from fire.
* UnexplainedAccent: He may not be from the Bronx, but his accent sure is.

!! Flame King

The [[spoiler:former]] ruler of the Fire Kingdom and father of Flame Princess. He is evil, like everyone in the Fire Kingdom.

-->Voiced by: Creator/KeithDavid
* AbusiveDad: Sure, locking his daughter in a lantern for her entire life wasn't a terribly nice thing to do, but considering how powerful and destructive she is, he had a good reason... but then [[spoiler:''Earth and Water'' reveals that the lantern was actually Plan B. His first idea upon learning how powerful she was as a baby was to leave the newly born Flame Princess in the wilderness to die, not because he cared about the destruction she might cause, but because he was afraid she would usurp him.]]
* {{Acrofatic}}: Subverted, it seems like it on the surface, but when you take into consideration that fire doesn't really have weight and the only thing holding him down is his armor it starts to make more sense.
* AffablyEvil: He's quite polite for an EvilOverlord.
* BadBoss: Was fine with "Finn" killing his court jester and in [[ComicBook/AdventureTimeGraphicNovels Playing With Fire]] he chastised his cook for dinner being ready 10 minutes early.
* CainAndAbel: [[spoiler:He extinguished his own brother to become King.]]
* CardCarryingVillain: He may not be of the diabolical LaughingMad variety, but he's still pretty open about the fact that he's evil.
* EvenEvilHasStandards: [[spoiler:Evil though he may be, apparently letting Flame Princess destroy the entire planet is a little too much for him, so he followed Princess Bubblegum's advice on locking her up. Later subverted since it turns out that he didn't really care about the destruction his daughter might cause; he only locked her in there so she wouldn't take his throne from him.]]
* EvilIsBurningHot: The ''Flame'' King, anyone?
* EvilOverlord: He rules over the Flame Kingdom.
* EvilParentsWantGoodKids: Inverted (sort of) since his definition of "good" is evil. So he sneaks into Flame Princess's house through her scented candle flames and starts whispering in her ear..
--->'''Flame King''': Evil. Evil evil evil. Evil evil evil evil!
* EvilSoundsDeep: Comes with being voiced by Creator/KeithDavid.
* ForTheEvulz: [[ComicBook/AdventureTimeGraphicNovels Playing With Fire]] shows him terrorizing the citizens of the Flame Kingdom just because he can.
* KlingonPromotion: [[spoiler:He became the king by killing his older brother. Later on, he's on the receiving end of this trope when his daughter takes control.]]
* LargeAndInCharge: He's a big dude, to say the least.
* OrcusOnHisThrone: Just sits around in the Fire Kingdom, despite the rest of Ooo being inflammable and presumably ripe for conquest. Could apply to the Fire Kingdom people in general. On the other hand the rest of Ooo also contains a large amount of water, which has been shown to be fatal to Flame People, making a full scale invasion costly at best and suicidal at worst.
* SealedEvilInACan: [[spoiler:Usurped by his daughter and put inside the same lantern he put Flame Princess in.]]

[[folder:The Duke of Nuts]]
!!The Duke of Nuts
[[caption-width:120:"[[GettingCrapPastTheRadar Why would you want to sack MY Nut Castle on my second son's first birthday?]]" ]]
The Duke of Nuts is a generally nice member of royalty, ruling over the Duchy of Nuts. An all-around family man, his only major flaw is that a physical deficiency makes him uncontrollably eat any pudding in range.

--> Voiced by: Steve Little
* {{Adorkable}}: He's nice up to the point of being awkward. When he thanks Finn and Jake for waiting for him, he ''gives them daisy chain crowns'' as a token of his appreciation for waiting him.
* ChuckCunninghamSyndrome: Hasn't appeared or been referred to since the first season. Probably because he's just too nice a guy to be that interesting, and because Princess Bubblegum having an irrational and emotional grudge against him shows her to be flawed in a very different way to [[TotalitarianUtilitarian the one]] which they would later explore.
* HappilyMarried: His wife quickly jumps to his defense in the pudding case. Also, he 'lies with her' often.
* NiceGuy: ''Ridiculously'' nice. Almost ''obscenely'' nice. Hell, he was willing to take the fall for Finn even though he was totally innocent.
* PokeThePoodle: About the only thing he's ever done wrong is eat all of Bubblegum's pudding.
* QuirkyHousehold: Him and his family are pretty weird, but love each other. His wife is nuts, in both the figurative and literal sense of the word.
* SitcomArchNemesis: To Princess Bubblegum, who despises him solely because he ate all of her pudding once.
* SweetTooth: He loves him some pudding.
* TrademarkFavoriteFood: Pudding.

!!Family Members
[[folder:Jake and Lady Rainicorn's Puppies]]
!!All of them

* BadassFamily: After two days they were more capable in a fight than their (admittedly sleep-deprived) father.
* EverythingsBetterWithSpinning: Their fused form spins rapidly to attack.
* FusionDance: In "Jake The Dad", to fight the foxes that were trying to eat Jake, the five of them are shown to combine into... something. They can even involve Jake in it, without him requiring any understanding of what was going on.
* NonHumanHumanoidHybrid
* RapidAging: They become adults in ''less than a '''week'''''.
* UnevenHybrid: [[spoiler: One half rainicorn, one quarter dog, one quarter whatever it was that [[FaceFullOfAlienWingWong impregnated]] Joshua]].

!!Jake Jr.

One of Jake and Lady Rainicorn's puppies, who inherited Jake's mischievous side.

->Voiced by: Creator/KristenSchaal

* EyelessFace: Unlike the other pups, she doesn't have visible eyes or a nose. She does have several wrinkles on her face, but exactly what they are or why her face is like this is unclear. She also has an unusual mouth which appears to open both horizontally and vertically, and her horn is on her lower back. [[spoiler: Turns out her odd face may be inherited from her extra-dimensional "grandmother".]]
* GenderBlenderName: She's a girl named Jake.
* InTheBlood: [[spoiler:She has recently become a thief like her father was in his youth.]]
* RapidAging: Despite being less than a year old chronologically, she stated in her second appearance that she was 22, then in the very next episode, she was "basically" 30.
* VoluntaryShapeshifting: Her hair can grow and be controlled in the same way her father controls his body.
* WackyParentSeriousChild: In "Another Five More Short Graybles".
* WellDoneDaughterGirl: She wants Jake to be proud of her. [[spoiler:He is...especially after she demonstrates what a skilled criminal she is.]]
* WhatDoesSheSeeInHim: Believes her mother has strange taste in men.


Another of Jake and Lady's puppies. He still lives with his mother.

->Voiced by: Dan Mintz

* BasementDweller: Lives with his mother and spends his time playing video games.
* CannotTellFictionFromReality: He hallucinates that the events in BP's diary are happening to him.
* GeekPhysiques: He's the chubbiest of his siblings.
* HollywoodNerd
* ManChild: He's the same age as Kim Kil Whan, but acts like a teenager.
* MommasBoy: In the sense that he still lives with Lady (and uses her shampoo), but he also seems the closest to her out of all the pups. At the end of "Lady Rainicorn of the Crystal Dimension", he tells her he wants to "learn to be cool, like you."
* MrImagination: He imagines himself as part of BP's diary.
* RapidAging: Like the rest of the puppies, though he still acts the most childish.

!!Kim Kil Whan

The most responsible of Jake and Lady's puppies.

->Voiced by: Marc Evan Jackson

* AloofBigBrother: To his less responsible siblings.
* BeardOfEvil: Though he's more amoral than evil, he has a classic pointy villain beard.
* CorruptCorporateExecutive: He buys out his father's treehouse and splits it into thirty-seven tiny apartments that he rents out.
* FoolishSiblingResponsibleSibling: The responsible sibling to Jake Jr. and TV's foolish siblings.
* InterspeciesRomance: He's married to a bear, and they have a daughter.
* JerkWithAHeartOfGold: He's not a bad guy, but he's kinda a large jerk to his father in the course of trying to teach him responsibility.
* {{Landlord}}: Becomes this to Finn and Jake, buying their treehouse out from under them.
* RapidAging: Even more noticeable than his siblings. He has a beard by three days old.
* RulesLawyer: Jake digs up a golden bone in his yard to buy back the treehouse. Kim Kil Whan reasons that since the yard is his property, the bone already belongs to him.
* TookALevelInKindness: Kim does grow more patient with his dad. In his second episode, we see him participating in a three legged race with Jake before asking him for help with his daughter.
* WackyParentSeriousChild: He is extremely responsible, and resents his father's laid-back lifestyle.


Another of Jake and Lady's puppies.

->Voiced by: Paget Brewster

* DaddysGirl: Thinks Jake is the best father in the world, despite hardly ever seeing him, and is the only one of Jake's kids who respects him after RapidAging.
* TheDogBitesBack: At LSP.
* ProperLady: She speaks in a very posh manner. Except around her dad.
* RapidAging


The last of Jake and Lady's puppies.

->Voiced by: Alia Shawkat
* BrilliantButLazy: She knows she could be good at Card Wars but she's not into it.
* CoolHouse: Lives in a pre-Mushroom War Egyptian pyramid.
* ExactWords: One bone, one game.
* FortuneTeller: Her main interests are mysticism, spirituality, and cartomancy.
* {{Intangibility}}: She can walk through walls.
* InterspeciesRomance: Her cartomancy reveals she'll have one with a cat.
* RapidAging: Considered to be in her mid-twenties by the time of her first speaking role.
* {{Sizeshifter}}: Charlie appears to have inherited this ability from her dad. She is able to grow almost as large as Ooo.
* StrongFamilyResemblance: Without her rainicorn attributes she'd look almost identical to Jake, just with freckles and a lighter shade of yellow fur.
* YouthfulFreckles

Kim Kil Whan's daughter and thus, Jake's granddaughter

* BrattyTeenageDaughter: Would rather go skateboarding than focus on her schoolwork.
* NonHumanHumanoidHybrid: Where to ''begin?'' She is half bear from her mother's side while Kim is of course, half rainicorn from Lady and half dog from Jake while [[spoiler: Jake himself is technically half dog and half extradimensional creature, thus, all of his kids would be one quarter dog and one quarter alien being, thus Bronwyn is half bear, quarter rainicorn, 1/8th dog and 1/8th alien]]
* RapidAging: Less than a year old, but she's already a teenager.
* ShockAndAwe: Has the ability to turn into electricity.

[[folder:Joshua and Margaret]]
Jake's parents, who also adopted Finn after finding him in a forest. Their job is to hunt monsters around Ooo.

-->Voiced by: Kent Osbourne (Joshua) and Maria Bamford (Margaret)
* ActionGirl: Margaret, who forms half of Joshua and Margaret Investigations, definitely qualifies. She seems to favor a crossbow and shuriken.
* BadassNormal: By [[FunnyAnimal Ooo's definition of normal]], anyway. Neither of them have stretchy powers like Jake, but are shown to be able to handle enemies powerful enough to beat their super-powered sons easily.
* BattleCouple: They're HappilyMarried and both of them work together in their monster hunting business.
* CoolSword: Joshua was the original owner/creator of the [[InfinityMinusOneSword Demon Blood Sword]].
* DeceasedParentsAreTheBest: Played with; though flashbacks show that they had their shortcomings (Margaret insisted on following a guide to raising their children that kept them from even the smallest dangers and Joshua encouraged his sons to beat each other up in order to be "tough galoots"), Finn and Jake still remember them fondly.
* FaceFullOfAlienWingWong: [[spoiler:A monster bit Joshua and implanted an egg in his head, which resulted in Jake's birth.]]
* GoodParents: Played with: Margaret insisted on strictly following a guide on how to raise children, refusing to expose her sons to even the slightest risk, while Joshua was a strict father who wanted his children to be "tough galoots". However, both of them do love their children very dearly despite these shortcomings.
* KleptomaniacHero: As ''Jermaine'' reveals Joshua stole ''alot'' of stuff from demons....and the demons want their stuff back.
* HappilyMarried: While they have their disagreements, they clearly love each other and have a stable married life.
* MotorMouth: Joshua tends to talk like this.
* MisterSeahorse: [[spoiler:Joshua is the one who gave birth to Jake, who popped out of his head after he got bitten by a monster.]]
* {{Posthumous Character}}s: Both are dead by the time of the first episode, but they appear in flashbacks.
* PregnantBadass: Although her pregnancy prevents her from being as deadly as usual, Margaret manages to defeat the monster who bit Joshua by herself.
* ScarsAreForever: The reason why Joshua always wears a fedora is to hide a scar he got from [[spoiler:giving birth to Jake through his head]].
* WouldHurtAChild: DoubleSubverted by Margaret: When she's under the impression that [[spoiler:the monster she needs to defeat in order to save her husband is a baby]], she starts to apologize... then socks it in the face to take its venom.

-->Voiced by: Tom Schlarpling

Finn and Jake's third brother. He appears early on in flashbacks, but doesn't appear in person until "Jermaine".

* BadassNormal: Despite not having powers, he holds his own when it comes to dealing with demons.
* BigOlEyebrows: Pretty much the only thing that makes him visually distinct from Jake.
* TheDutifulSon: Spends his life watching over their father Joshua's stuff, and is jealous of the adventurous life that Finn and Jake lead. Subverted, when Jake points out that he could have left any time he wanted, and Jermaine agrees that he "built his own cage".
* FoolishSiblingResponsibleSibling: The responsible one in the family.
* GreenEyedMonster: Gets in a fight with Jake over his jealous that Jake was their father's favorite, while he was left to take care of their father's stuff.
* MiddleChildSyndrome: Never explicitly stated, but adds up to the sibling birth order revealed in "Joshua and Margaret Investigations" and to Jermaine's issues towards his brothers (see TheResenter below).
* TheResenter: Has a lot of pent-up resentment towards his brothers.

[[folder:Hunson Abadeer]]
!! Hunson Abadeer
[[caption-width:118:"Well, I'm certainly not the guy who's gonna steal your soul."]]
Also known as the "Lord of Evil". One of the most evil entities in The Land of Ooo (Probably second only to The Lich). Currently locked away in The Nightosphere. In season 4, his full name was given as Hunson Abadeer.

-->Voiced by: Martin Olson
* AffablyEvil: To Finn and Jake in his second appearance, but arguably and surprisingly ''not'' Marceline, who he blatantly lies to and manipulates even under the guise of an eccentric but caring father. Granted, he does love and care about her, but is pretty lousy at explaining it.
* ArtifactOfDoom: He owns an amulet made of concentrated ChaoticEvil, which [[ArsonMurderAndJaywalking gives the wearer a nice suit]] and transforms him or her into a ruthless EldritchAbomination.
* BadassInANiceSuit: Pilfers souls, rules the Ooo equivalent of the underworld and may rival the Lich himself, all while dressed in a snappy suit and tie. Somewhat invoked, since anyone who wears the amulet gains the suit and tie along with the ChaoticEvil.
* CardCarryingVillain: He's described himself as "completely evil" with no shame.
* ChaoticEvil: Invoked. He ''grew up'' with it and as seen above, pretty proud of it. [[FridgeBrilliance Might explain why he kinda sucks at being a parent despite genuinely caring about Marceline.]]
* DoesThisRemindYouOfAnything: In his OneWingedAngel form, his face is large and round, with a [[VaginaDentata vertical slit for a mouth]].
* EmbarrassingFirstName: Jake seems to think so, as he scoffs when he first hears it.
* EvenEvilHasLovedOnes: He really does love his daughter, even if he doesn't show it that much.
* FauxAffablyEvil: Like Marceline, he's a playful troll. Unlike Marceline, he makes good on his threats and then some.
* FollowInMyFootsteps: Very much wants this for Marceline, to the point where [[spoiler:he fools her into taking his ArtifactOfDoom so that she can have a taste of ruling over the Nightosphere]]. He mentions being a victim of this himself, although he doesn't seem to mind it at all anymore.
* HumanoidAbomination: His default form looks human, but is really a deathless, soul sucking demonic entity. His OneWingedAngel form falls firmly in EldritchAbomination turf.
* {{Immortality}}: According to Marceline, he's "deathless" and can't die.
* InterspeciesRomance: Had one with a human woman, and together they had a daughter, Marceline.
* LivingForeverIsAwesome: [[DownplayedTrope He's more like "meh" about it]] but he doesn't share any of his daughter's angst.
* MarionetteMotion: Apparently a function of the amulet, as he moved normally when he wasn't wearing it.
* NamesToRunAwayFromReallyFast: It's not mentioned in the episode, but his title is the Lord of Evil.
* NoNameGiven: Until "Return to the Nightosphere"
* OurDemonsAreDifferent: Described by WordOfGod as more demonic than a vampire.
* OneWingedAngel: Like his daughter, he can turn into a giant monster. Though his is much more [[EldritchAbomination monstrous]]. [[spoiler:Apparently he requires an object of power to do so. She does not.]]
* ParentalNeglect: He was a rather neglectful father towards Marceline during her childhood, and what officially soured their relationship was when he ate the fries she bought. Still, he really does love her even if he isn't very good at showing it.
* PetTheDog: Showing actual compassion towards Marceline.
* {{Satan}}: Okay, it hasn't been confirmed, but considering he's "The Lord of All Evil" who steals your soul, and rules the Nightosphere which is essentially Ooo's version of {{Hell}} he probably is.
* SealedEvilInACan: Escaped from the Nightosphere in "It came from The Nightosphere" thanks to Finn, but is banished back by episodes end.
* UnreliableNarrator: While [[LiteraryAgentHypothesis he wrote]] the [[AllThereInTheManual Adventure Time Encyclopedia]], it makes quite clear at several points that there are things he does not know (such as Simon Petrikov's relationship to his daughter, or his own origins) and that there are assumptions he makes which are incorrect (he is fond of assuming that centuries or eons passed at certain points when other sources would indicate it was probably more like days, years at most).
* UnknownRival: Claims to be the Lich's rival in the Adventure Time Encyclopedia. While he is likely one of the only characters with power comparable to him, the Lich doesn't appear to be threatened by him enough to try to kill him like he did with all of his other enemies (though it could be that he may not be able to kill Hunson or even know how to enter the Nightosphere.)
* UnnamedParent: He's only known as "Marceline's Dad" until "Return to the Nightosphere".
* WellDoneDadGuy: Cares a lot for Marceline's approval, even though he tends to go about it all wrong.
* YourSoulIsMine: His MO.

[[folder:Mr. Pig]]

A pig who used to eat people for the mob. Now married to Tree Trunks, [[spoiler:and the adoptive father of the Lich.]]

-->Voiced by: Ron Lynch

* ApologeticAttacker: "Uh, I'm sorry y'all. They're making me do this. I'll try to make it quick."
* CannotSpitItOut: He has some trouble admitting his love to Tree Trunks.
* HappilyMarried: To Tree Trunks, though "Escape From the Citadel" implies that this may not be entirely the case.
* FedToPigs: His job was to be one of these pigs, until Finn and Jake rescued him.
* GoodParents: [[spoiler:To the infant Lich. Whether this will actually do any good remains to be seen.]]
* InterspeciesRomance: With Tree Trunks.
* SickeningSweethearts: With Tree Trunks, to the point that everyone in Ooo is disgusted by them.
* SuperSenses: He has super-sensitive hearing, [[TruthInTelevision which is something that pigs actually have.]]
* TalkingAnimal: One of the many that populate Ooo.

-->Voiced by: [[WesternAnimation/TheMarvelousMisadventuresOfFlapjack Thurop Van Orman]]

Shelby's little brother (actually a piece of his tail-end that got cut off performing "parkour" and landing on some string at a party. Kent quickly learned to talk, grow appendages, and after Shelby gets advice on brothers from Jake, Go and beat bad guys, which begins his first adventure into the tree itself.

* ChasteHero: due to being born literally a few minutes earlier, when the Rat Knight gives him a choice of love or the magic earth he has, Kent picks the earth without a second thought.
* DoesThisRemindYouOfAnything: The party that led to his creation in the first place, along with the fact that Shelby passes out and wakes up from said party not remembering what happened.
* {{Expy}}: He shares many Similarities with Nintendo's Franchise/{{Kirby}}, both are small, round, pink, baby-like characters that go on an adventure blissfully to defeat a nightmarish villain.
* TheHero: to the little people living in the tree.
* MaybeMagicMaybeMundane: Kent just sort of comes into being, and its unknown whether or not this just happens with a worms body pieces being cut, or if there was some outside influence behind his.
* SortingAlgorithmOfMortality: Lampshades that he has no real sense of mortality, and slides between areas 1 and 2 of the scale.
* {{Troll}}/TroublingUnchildlikeBehavior: His parting words to Jake are, and quote ''Someday, you'll be Kent's food.'' end quote; afterwards he scoots away laughing goofily. He seems to have grown out of it rather quickly though.

!!Friends and Allies

A member of Jake's old gang of criminals. Desperately wants to be friends with Jake again.

-->Voiced by: Vincenzo Rauso (Season 1), Collin Dean (Season 5 & 6)

* ArchEnemy: He considers Finn to be his.
* AxCrazy: Finn can't even get Tiffany to stop trying to stab him long enough for them both to fight giant worms.
* TheBusCameBack: He's used for a one-off joke in "My Two Favorite People", and doesn't return again until "One Last Job", where he gets a much larger role.
* CrazyJealousGuy: He wants to be Jake's best friend again, and he will let nothing stop him.
* DelusionsOfEloquence: He makes a lot of long, flowery speeches, but they're entirely meaningless and he has to write them down on his arm so he doesn't forget the words.
* EnemyMine: He and Finn have to work together in "Dentist".
* EvilCounterpart: Finn's.
* GenderBlenderName: He's a boy.
* IceCreamKoan: Tends to make meaningless cryptic speeches.
* IllKillYou: He makes no secret of his murderous intentions towards Finn.
* JabbaTableManners: Eats like this after losing his teeth.
* MurderTheHypotenuse: He plans to murder Finn so as to have Jake all to himself.
* NeverFoundTheBody: [[spoiler:He gets eaten by a giant worm in "Dentist", but it's implied that he's still alive. This is confirmed in "Preboot", when he shows up as a {{Cyborg}}; however, the episode ends with the ship he's on exploding. Finn nevertheless says to Jake that he's "probably" okay to spare Jake's feelings.]]
* PermaStubble: PlayedForLaughs, as his stubble is simply pubescent peach fuzz.
* TheRival: To Finn.
* StalkerShrine: He has one of these devoted to Jake.
* TheToothHurts: He lost all of his teeth biting into the Baker's Shard.
* VagueAge: Looks and sounds about Finn's age and is a bit shorter than him, but apparently ran with Jake back when he was criminal, which is implied to have been a while ago.
* VocalDissonance: He's a conniving, murderous criminal with a penchant for villainous monologuing, but he has the voice of a little kid.

[[folder:Susan Strong/[[spoiler:Seeker X-J-7-7 (Kara) Strong]] ]]
A member of an underground dwelling group of humans. The "humans" she lives with are eventually revealed to be ''hyoo-mans'', a strange race of FishPeople living in the ruins of human civilization. Susan herself is the only true human amongst them. She gets a focus arc in season 8 explaining her origins. [[spoiler: Her real name is Kara, and she was an elite member of humanity's "Seeker" caste who was sent to Ooo 16 years ago to find Martin and baby Finn and bring them home, but somehow ended up getting lost herself.]]

-->Voiced by: Jackie Buscarino
%%* DO NOT ADD Amazonian Beauty. This character is simply muscular. She is not portrayed as attractive.
* AmbiguouslyGay: She has an extremely close relationship with Frieda in the season 8 mini-series.
* AmbiguouslyHuman: She is fully human, though she does have some cybernetic implants from her home.
* CowardlyLion: Better than the rest of her people, certainly.
* {{Expy}}[=/=]ShoutOut: Of Tarzan, much like Finn. In Susan's case it's a lot more obvious, since she's RaisedByWolves that ''don't'' act civilized but live as a group which she leads, and she doesn't speak fluent English.
* GreenEyes: Not that they really indicate anything though.
* HugeSchoolgirl: Big in every way. There is pretty much no physical indication of youth, leading to her VagueAge.
** Played straight(er) in the "Islands" flashbacks: [[spoiler:Susan was already ''extremely'' muscular as a young teen thanks to her Seeker training - however this had very little impact on her social life (since this was perfectly normal for Seekers), and actually had a ''positive'' effect on her self-image because she loved being buff.]]
* PhlebotinumRebel: [[spoiler:Susan was trained and cybernetically augmented by Doctor Gross into being her most powerful Seeker, and ultimately plays a key role in defeating her.]]
* RightForTheWrongReasons: [[spoiler:It turns out Strong really is her surname. All humans from the Mysterious Islands are given a designation comprised of a serial number combined with their last name: Finn's is P-G-8-7 "Mertens" and hers is X-J-7-7 "Strong."]]
* SmallRoleBigImpact: Susan was the one who [[spoiler:"introduced" Finn's parents to each other - she broke both of Martin's legs during a Seeker mission and dropped him off at the hospital where Minerva worked.]]
-->'''Minerva''': What've you got for me, [[spoiler:Kara]]?
-->'''Susan''': A sad old hider with two busted legs.
-->'''Minerva''': Oooh, I love busted legs!
* SpellMyNameWithAnS: The hyphenation of her serial number is different in each of its appearances - when first shown on her cranial implant it reads "X-J-7-7", then "XJ-77" when displayed on a computer monitor, and finally as "XJ-7-7" when shown on BMO's face.
* SweetTooth: She, along with the rest of her tribe, actually tries to eat the ''entire Candy Kingdom''.
* TookALevelInBadass: In her second appearance she's the leader of the Hyoo-mans in all but name, conquers some major fears, and is generally a ferocious warrior.
** Zig-zagged - she was actually regaining levels of badassery that she had lost when she lost her memories.
* TheUnreveal: We never find out [[spoiler:if she's a fish person like the others, or a real human.]]
** At the end of 'Beautopia' [[spoiler:after she gently moves Finn's hand beneath her hat, we don't get to see whether or not there's a set of gills there or a human ear. Finn's reaction and Susan's CharacterDevelopment imply that she is human.]]
** Though her eyes did [[spoiler:glow in the dark like the rest of the fish people in 'Beautopia'.]]
** The question finally gets a conclusion that only opens up more questions in "Dark Purple": [[spoiler: she IS a human, but also has a cybernetic implant.]]
*** These questions all get answered during the "Islands" mini-series, but bring up yet ''more'' questions. Namely, it's never explained how Susan lost her memories or ended up living with the Hyoo-mans.
* VagueAge: She and Finn have more than a little chemistry, and HulkSpeak and NaiveNewcomer aside they seem to be on the same intellectual level. However, Susan's body type is very much that of an adult woman. The season 8 mini-series shows that she is at least 15-20 years older then Finn, as [[spoiler:she knew his parents before he was born and was sent to retrieve him when he was an infant]].
* YouNoTakeCandle: When Finn and Jake first find her, she barely knows how to speak until the two heroes teach her and she steps up to this trope. She's getting better at speaking though, as seen in "Beautopia". [[spoiler: When she regains her memories, she speaks perfect English again.]]

[[folder:Choose Goose]]
An anthropomorphized goose with extremely wobbly neck and limbs who speaks mostly in rhyme and sells all kinds of adventuring gear. Choose Goose sometimes teases Finn to manipulate him into buying his wares, but is mostly on good terms with him and Jake.

->Voiced by Creator/JeffBennett

* AlternateSelf: A human version of Choose Goose, named "Choose Bruce", appears in the alternate "Farmworld" universe.
* MeekTownsman: As Choose Bruce. He won't get directly involved in Finn's fight with the Destiny Gang, but gives him a weapon to attach to his robotic arm.
* NoCelebritiesWereHarmed: His voice is based on famous actor/comedian Ed Wynn.
* RhymesOnADime: Not always, but usually.
* ShopKeeper: In the ''TabletopGame/DungeonsAndDragons'' mold, selling magic items.
* SpeciesSurname: Choose ''Goose''.

[[folder:Banana Man]]

A... well, a Banana Man who is probably the best engineer in Ooo. According to an apparent "croak dream," he will be present at Jake's death, [[spoiler:though the dream is later fulfilled and Banana Man actually saves Jake from his apparent death.]]

->Voiced by: WeirdAlYankovic

* BigDamnHeroes: [[spoiler:He shows up just in time to save Finn and Jake from the depths of space in "The Comet".]]
* TheChewToy: In his first appearance, Finn and Jake destroy his home and his rocket ship. In his second, he helps save the Candy Kingdom but gets arrested for public nudity (though it's implied that he also hooks up with a female Banana Guard).
* TheEngineer: Helps Finn and Jake fix up an old truck.
* GadgeteerGenius: He can build a functioning rocket ship, the technology for which was lost after the Great Mushroom War.
* IJustWantToHaveFriends: He agrees to help out Finn and Jake just because he wants to hang out with them.
* MrFixit: He can fix a truck that's been broken-down for over ''one thousand years''.
* NiceGuy: He's even willing to forgive Finn and Jake for destroying his rocket.

[[folder:Ancient Psychic Tandem War Elephant]]
-->Voiced by: Steve Agee

An ancient two-headed psychic war elephant.

* AHeadAtEachEnd
* DesperatelyLookingForAPurposeInLife: After the events of "Something Big".
* PsychicPowers
* PutOnABus: After his first appearance in "The Limit", he doesn't appear again until "Furniture & Meat".
* TimeAbyss: It's been around for as long as Darren.

[[folder:The Grass Sword]]
A cursed sword made of grass provided to Finn by the Grassy Wizard. It cannot be removed, but becomes controllable once Finn accepts it as his weapon.

* AbsurdlySharpBlade: Sharp enough to slice through metal, and incredibly precise.
* AdaptiveAbility: It reacts to Finn's intense desire to not let his father escape in "Escape from the Citadel", taking over his whole arm, swelling up enormously, and giving him enough strength to restrain an asteroid from taking off. Unfortunately, the force of the asteroid's departure was so great that it ripped Finn's arm off; even then, the grass sword somehow made it so that the stump was completely healed over at the moment his arm was ripped off.
* AmbiguouslyEvil: Though it did at one early point attempt to overwhelm Finn, the majority of the time it seems to act in his interest even when acting without his permission.
* AudibleSharpness: Rings like a bell when swung.
* CoolSword: A tachi made of grass that's supernaturally sharp and deft.
* ClothesMakeTheSuperman: It's a curse yet [[CursedWithAwesome it actually gives Finn enough skill to cut through almost anything]], enough to [[spoiler:fend off the Bandit Princess, who was in possession of the Finn sword that doubles the strength of the user.]]
* CursedWithAwesome: A parody of it. The sword was meant to be an actual curse to the user who finds it unwieldy and fears it. [[LoopholeAbuse Guess what happens next]].
* EmergencyWeapon: Becomes the available second after the existence of [[spoiler: the [[InfinityPlusOneSword Finn sword]], in case the Finn sword gets either stolen or broken.]]
* EmpathicWeapon: It responds to Finn's will, retracting to wrap around his arm when not in use. [[PetTheDog It also seems to possess some concern for Finn's safety]], slapping him awake when he's unconscious in the ocean. It also [[spoiler:destroys the Fear Feaster as he antagonizes Finn]].
* EvilWeapon: Implicitly, but Finn manages to keep it under his control.
* LivingWeapon: Definitely alive, and possessing some level of sapience.
* LudicrousMeleeAccuracy: Remarkably agile and the blade itself is flexible. It tends to carve solid objects into busts of Finn's head that themselves fall into separate pieces (i.e. the face and eyeholes slide out).
* MidSeasonUpgrade: [[spoiler:The sword itself has shown much more spotlight than any of the swords that Finn had in the entirety of the show and it proves more than enough to consider its keep on Finn.]]
* OnlyMostlyDead: In the season six premier, it's reduced to a flower on Finn's arm. A few episodes later, it regrows Finn's arm and is reduced to a thorn in the process. [[spoiler:In the season finale, it grows back again, fusing with his regrown arm]].
* StealthPun: Hardly "stealth" since it's the name of its introductory episode, but it's literally a blade of grass.
* TalkToTheFist: Or blade, rather. It manages to slice through [[spoiler:the Fear Feaster, much to his surprise]], possibly without Finn commanding it to.
* WalkingSpoiler: [[spoiler:Its very existence on Finn's arm already concludes the (possible) final fate of Finn's missing limb conundrum.]]

!!Moseph "Moe" Maestro Giovanni
The creator of all [=MOs=]. He created BMO as the companion for a son, but he never ending up even dating. He eventually sent BMO out into the world to explore and learn and even find his own family to take of, to "Be more."

->Voiced by: Chuck [=McCann=]
* AwesomeMcCoolname: Given how his middle name means "master", he qualifies here.
* BusCrash: [[spoiler:AMO claims to be Moe after going fully cybernetic, but he actually killed the real Moe.]]
* CoolOldGuy: We're talking about the guy who built BMO! And thousands more robots!
* GeniusCripple: Can't use his legs and requires his robots to carry him and for life support.
* NiceGuy
* {{Transhuman}}: When asked by Finn if he was human, he answered "My skin is human," implying that he has survived since the Great Mushroom War as a {{Cyborg}}.

-->Voiced by Ako Castuera

Billy's ex-girlfriend who appears in the fifth-season finale "Billy's Bucket List"

* ActionGirl: She was a partner in some of Billy's adventures.
* BattleCouple: This is pretty much how she described her relationship with Billy.
* BikerBabe: In flashbacks, she could be seen riding shotgun on Billy's motorcycle and when she and Finn visit Billy's Crack, she is drawn right to it.
* GiantWoman: She's as tall as Billy.
* GreenSkinnedSpaceBabe: Well, green-ish. With pointed ears for extra alien-ness.
* ManicPixieDreamGirl: The "pixie" part is debateable, given her size, but there are indications that she was this to Billy. And maybe, momentarily, for Finn.
* MayflyDecemberRomance: In her flashbacks, Billy looks much younger, but Canyon hasn't visibly aged at all.
* StatuesqueStunner: She's 20 feet tall and gorgeous.

[[folder:Breezy the Bee]]
-->Voiced by AshlyBurch
A Female Bee that Finn meets after his final confrontation with The Lich. At first, she only seems interested in the flower growing [[spoiler:from his armless stump]] - being Finn's friend and getting him princess kisses to re-ignite his "spark" and keep the flower from wilting - only to get closer to ''it'' rather than him. After some bonding, she grows to love Finn. [[spoiler:(Enough to drink royal jelly and become a Queen Bee to protect him from other bees.)]]

* ActionGirl: [[spoiler:Post transformation.]]
* {{Adorkable}}: Seems to share many aspects with Finn, including getting very nervous when in a more emotional situation.
* ChuckCunninghamSyndrome: Her one appearance had a HUGE impact, as you can no doubt tell from the spoilers, and she's even [[spoiler: teased as a love interest who can be everything Finn has ever wanted,]]but she abruptly disappears and has yet to so much as be referenced ever again.
* {{Foil}}: To Princess Bubblegum. [[spoiler:Breezy, being a queen bee who loves Finn and needs a knight, contrasts PB being eternally a princess with no plans to marry and become a queen, and not returning Finn's affection. Breezy is literally everything Finn ever wanted from PB but cannot receive, and dialing up the irony is the fact that this time, it's Finn who doesn't return the affection. Lampshaded via symbolism when Finn sees her silhouette near the end of her episode, and he mistakes her for Bubblegum for a moment.]]
* InterspeciesRomance: Though it doesn't start off as such, it begins with Breezy simply wanting the flower that came out of Finn's arm stump at the Citadel. Through the episode, the friendship blooms into her feeling affection to Finn, rather than the flower. [[spoiler:Though she is just a bee she becomes a more humanoid Queen after stealing royal jelly to protect Finn. However after that Finn still sees her as just a friend and she seemingly leaves. ''After that'', she returns after Finns attempts making out with LSP fail to keep the flower from wilting, and her singing seemingly sparks enough passion to make the flower literally explode into a tree and give Finn's arm back. This seems to spark his interest in her, but only time will tell if this goes anywhere.]]
* JerkWithAHeartOfGold: Only wants to help Finn to keep the flower alive, but grows out it as she spends more time with Finn.
* ThePowerOfLove: [[spoiler:She returns to Finn after she leaves him for saying that he thinks they should just be friends and spends the night with LSP. The two perform a duet which makes the flower blossom until it explodes and returns Finn's arm. Bonus points in Finn that he sees PB during the song and realizes its Breezy afterward, with an awed expression.]]
* [[spoiler:PsychicPowers: In her Queen Bee form, though it isn't certain whether this only extends to other bees or not.]]
* RebelliousPrincess: To get Finn to continue being responsible for the flower, she eventually tells Finn that she's a Virgin Queen Bee, running from her responsibilities. [[spoiler:She eventually gets over this for Finn's sake.]]
* [[spoiler:ShesGotLegs: In her Queen form, she has a shapely waist and legs after getting her new body. [[JustifiedTrope Justified]] in that, much like real bees she has pollen sacs in her legs (though hers look more like belt pockets.]]
* TransformationSequence: [[spoiler:Goes through a somewhat unsettling one to rescue Finn out of love, becoming a humanoid bee creature. To be specific, she vomits honey which wraps around her, making her grow and form her humanoid appearance.]]
* WalkingSpoiler: Wouldn't expect that out of a simple bee would you?
* {{Wingman}}: What she becomes to Finn after they first meet.

A tiny cat-like assassin that attempts to kill Wildberry Princess in "Jake vs. Me-Mow". She reappears much later in "Angel Face", having become a BountyHunter and grown much larger.

->Voiced by: Kyla Rae Kowalewski
* BadassAdorable: Don't let her size fool you; she's quite deadly.
* BountyHunter: Resorts to hunting bounties after getting kicked out of the assassin guild.
* CatsAreMean: Given that she's an assassin, she qualifies.
* CharacterAgedWithTheActor: Me-Mow's [[IGotBigger ridiculous growth-spurt]] was probably inspired by her voice actress growing from about 10 to 14 between appearances.
* CuteIsEvil: She's rather ruthless for someone so small.
* FanArt: How she started out.
* HazyFeelTurn: Goes from a ProfessionalKiller to a BountyHunter. Despite the latter not being inherently illegal, she's still plenty evil, and wants revenge against Finn and Jake.
* IGotBigger: She was originally shorter than Finn's knee. When she finally appeared again in "Angel Face", [[ExaggeratedTrope she's taller than Finn]].
* KillerRabbit: Hard to believe that this little critter is a coldblooded assassin.
* MasterPoisoner: Relied on on poison when she was an assassin, because that's nearly the only way she could kill anyone.
* ManipulativeBastard: Forces Jake into killing Wildberry Princess for her under pain of death.
* NotQuiteDead: Appeared to have fallen to her death, but was shown to have survived.
* OrificeInvasion: She was small enough to crawl inside people's bodies and attack from the inside.
* PoisonAndCureGambit: Tries this on Jake (see ManipulativeBastard).
* PrehensileTail: She's more than able to hold onto a branch with just her tail, or use it as another fist.
* ProfessionalKiller: She was a second-class member of the assassins' guild, but was kicked out when she failed her full membership test.

A.K.A The Sky Witch. She's the person Ash sold Hambo to in order to learn some useless spells. Marcie's since been trying to track her down to retrieve her doll.

-> Voiced by: Jill Talley

* ArtEvolution: Her second appearances gave more details to her eyes rather then the black dots she had before. This allowed for better expressions.
* AxCrazy: She randomly starts attacking her own familiar when she was in a ''good'' mood. Really says something when Marcie's not foolhardy enough to confront Maja on her own and asks Bubblegum to help her.
* BadBoss: Sends her familiar to keep Marcie distracted which resulted in him getting beat up. [[spoiler:When he comes to her stating he wants to quit after she succeeds in getting Bubblegum's t-shirt. She starts chasing him around her dwelling blasting him with magic. ''And she was in a good mood at that point.'']]
* ChekhovsGunman: She was the witch that Ash mentioned selling Hambo to.
* DarkLordOnLifeSupport: She's rendered comatose from the battle in "Something Big", and the Ancient Psychic Tandem War Elephant decides to take care of her. They both reappear in "Flute Spell", probably more than a year later, and Maja hasn't woken up; the Elephant states she may be like that for the rest of her life.
* EldritchLocation: Her home doesn't obey conventional rules of space.
* EmotionEater: Her magic runs on sentimental value and caring. Thus she to takes over the Candy Kingdom for this purpose.
* EvenEvilHasStandards: When summoning Darren, she tries to reign him back on outright destroying the Candy Kingdom since she needs Bubblegum for her plans. He doesn't listen and nearly killed Peebo, and Maja actually looked quite horrified he was about to go through with it.
* EvilIsHammy: Big time.
* JerkassHasAPoint: A partial example. She says that since Ash sold her the doll, it is now legally hers, and, in-universe, this apparently hold up, leading [[spoiler:Bubblegum to deal with the solution diplomatically.]] However, it's easy for the viewer to realize that it wasn't Ash's doll to sell in the first place, making the legitimacy of the deal questionable at best.
* KnightOfCerebus: Next to The Lich and Ice Queen, she's one of the few threats on the show taken completely seriously. Marceline wasn't willing to confront her without Bubblegum's help and her attack on the Candy Kingdom put the whole kingdom on the defensive, even claiming the life of Root Beer Guy.
* ManipulativeBastard: [[spoiler:Maja tricks Bubblegum into giving up the T-Shirt Marcie gave her. Later Maja says that Bubblegum had a stronger emotional attachment to the shirt then Marceline had to Hambo which is why Maja plans to use the shirt in a spell for "something big!"]]
* NotQuiteDead: Gets knocked into a tree after being blasted by the Tandem War Elephant which knocks her into a coma. Ironically said war elephant is the one who helps her later.
* PrimAndProperBun: Oddly enough.
* PsychoElectro: Abusing her familiar with electricity for little to no reason.
* VoiceOfTheLegion: Constantly talks in reverberating, demonic like tone.
* WeatherManipulation: She's able to generate [[BlowYouAway wind]] and [[ShockAndAwe lightning]].
* WickedWitch: Is she ever, and she did it all to get a shirt.

!! Ricardio

A brainy creature resembling a walking, talking heart. He's actually the Ice King's heart, granted sentience by a love spell gone wrong.

-->Voiced by: Creator/GeorgeTakei
* AndNowYouMustMarryMe: In 'Lady and Peebles", he tells Princess Bubblegum that he wants to be "united as man and wife" with her.
* ArtEvolution: Compare his [[http://images1.wikia.nocookie.net/__cb20100901142537/adventuretimewithfinnandjake/images/0/0c/Ricardio.jpg appearance]] in season 1's "Ricardio the Heart Guy" to his [[http://images3.wikia.nocookie.net/__cb20120822170812/adventuretimewithfinnandjake/images/b/bb/S4ricardio.png return]] in season 4's [[spoiler:"Lady and Peebles"]].
* AxCrazy: And ''how'', he is much more crazy and deranged than the Ice King.
* BeatStillMyHeart: His existence in a nutshell.
* BigOlEyebrows: Has these despite being an internal organ.
* BreakTheHaughty: [[spoiler:In "Lady and Peebles".]]
* EvilIsVisceral: He's a living ''heart'', for starters.
* EvilSoundsDeep: Given who's he's voiced by, it's to be expected.
* EvilerThanThou: He's eviler than the Ice King. [[IneffectualSympatheticVillain Which isn't that hard]], but he's still pretty scary.
* FauxAffablyEvil: Puts up a charming front, but is anything but.
* FeigningIntelligence:
** He's not as smart as he likes to think. This is pointed out by Princess Bubblegum when he holds her hostage:
--->'''Bubblegum:''' I feel like a big idiot for not believing you. He was just so engaging. Though his knowledge on planetoids is actually pretty weak...
** And again when he reappears in [[spoiler:"Lady and Peebles".]]
--->'''Bubblegum:''' You thought we were intellectual equals!?
** In "Lady and Peebles", Princess Bubblehum lampshades the poorly thought-out design of his new body.
--->'''Bubblegum:''' This body you designed is self-congratulatory garbage! See, I know a thing or two about building a body out of biomass, and you don't leave your heart exposed!
* [[spoiler:GlassCannon: His new body is strong enough to tie Lady Rainicorn in a knot, but his soft spots were still exposed.]]
* GrossUpCloseUp: A particularly memorable example of this trope when he reveals his plans:
-->'''Ricardio:''' Now I'm going to cut out Princess Bubblegum's heart ''[[[http://i179.photobucket.com/albums/w315/Jayblin/1272333532912.png close up]]]'' and make out with it.
** Happens again in "Lady & Peebles". [[http://images.wikia.com/adventuretimewithfinnandjake/images/8/8e/Ne_Ricardio_Close_Up.png Might want to change your pants afterward]].
* NonstandardCharacterDesign: Has a more detailed face than other characters.
* PunnyName: Get it? Cardio.
* SmugSnake: See FeigningIntelligence.
* VillainWithGoodPublicity: In his debut episode.
* WeWillMeetAgain: [[spoiler:And he made good on his word.]]
* WickedHeartSymbol: He's an actual red heart with a face, arms, and legs. He manipulates Princess Bubblegum with the intention of cutting out her heart.
* [[spoiler:WrongGenreSavvy: When building his new body, he failed to realize a major flaw: leaving the heart exposed.]]

!King of Rats
-->Voiced by: James Urbaniak

As his title implies, He is the King of all rats that live in Finn and Jake's Tree, gnawing at its roots. He is encountered by Kent in his quest to defeat a bad guy. Normally appears as a normal rat with a crown, but can take on the nightmarish form of a Giant Rat Heat and cape on top of a SwarmOfRats.

* CreepyMonotone: A high, but eerily calm and soothing tone...it almost never breaks unless he's attacking or being directly hit.
* KarmaHoudini: Gets away alive but with broken teeth, but stopping his gnawing allows the Tree House to bloom for the first time. Since a rat's teeth can grow back very quickly, it's likely he'll be back.
* MySpeciesDothProtestTooMuch: A villainous version, all the other Rats in the same episode appear to be nice enough to not fight Kent, and are just protecting the materials needed to make the strongest sword the Blacksmith can make, compare this to his direct hand in draining the Tree House' power by eating away at it.
* NothingIsScarier: similar to the Lich, Rat King has no funny moments when he appears, and seems to be in a creepy sort of control. His motivation is never explained, and neither are his powers or his origin. Theres also the fact that he resides in some sort of otherworld ''inside of'' the tree and takes the form of a disembodied head on top of a mass of rats.
* PowerParasite: He seems to have gotten his power from leeching off the Tree House itself, judging by his first scene.
* RedEyesTakeWarning
* ShoutOut: His Head-on-a-Cape form is similar to Nightmare, just like Kert is to Franchise/{{Kirby}}.
* SwarmOfRats: His second form, which also means that He's NighInvulnerable to blows to his body.
* TruthInTelevision: Rat Kings are a real kind of monster from Medieval times (mostly around the time of the infamous Black Death epidemic, and becoming less frequently reported as time went on) created when poo managed to fuse groups of Rats into a knotty clump by the tail. They were considered horrible omens, and real-life examples of them can be found in British Museums.
* WeCanRuleTogether: offers this to Kent, who of course refuses.
* TheWormThatWalks: his second form, which for added creepiness, is usually encased in shadow unless some form of light is brought directly to it.
* YouDirtyRat: a more menacing version than most though.

!!Rat Wizard
-->Voiced by: Creator/TomKenny

A Rat living in the Tree House, who wears a robe and is encased in a crystal. He guards the Unbreakable Ore (a bottle cap).

* BlackCloak
* JustAStupidAccent: Has an Indian accent.
* MineralMacguffin: The "unbreakable ore" which in reality is just a bottle cap.
* SecretTestOfCharacter: Offers The crystals in his room to Kent offering him the chance to live out his days in comfort, he's briefly entranced, but states that he didn't resist greed so much as he doesn't care about money. Rat Wizard thinks its weird but gives him the Ore anyway.

!!Rat Knight
A British-accented Rat in armor who wields a large sword, he guards the mystic earth (which appears to be just a mud clod mixed with his spit).

* {{BFS}}: Has one with a pointed end to keep the rest of the blade from touching the ground.
* JustAStupidAccent: British accented
* KnightInShiningArmor: Doesn't fight Kent because at the time Kent had no sword to fight with, and instead does his SecretTestOfCharacter.
* RatedGForGangsta/TotallyRadical: says "Yo' Holmes that's Cold" when Kent states he doesn't care about love.
* SecretTestOfCharacter: offers the hand of one of his daughters to Kent as his.

!!Ninja Rat
A mysterious and to-the-point Rat wearing Ninja garb. he protects the Sacred Flame (a blue firefly).

* TheStoic
* GratuitousNinja: possibly, seeing as the other two guardians are more classical in tone (a wizard and a knight)
** OneOfTheseThingsIsNotLikeTheOthers: likewise, his offers are a reverse of the other two, while Rat Wizard and Knight offered genuine articles of wealth and love, the materials they guarded, were mundane. Ninja Rat's offer, by contrast is mundane looking sap, while his offer is a magical-looking firefly.
* MaybeMagicMaybeMundane: Unlike the things the other two Rats were carrying and offering (with the materials being mundane looking.), The firefly he offers appears to be magical, glowing a deep blue and actually being used as a forging fire.

[[folder:King of Ooo]]
Claims to be the king of Ooo. Legally able to perform marriages. [[spoiler: Deposed at the end of "The Dark Cloud".]]

-->Voiced by: Andy Daly

* AuthorityInNameOnly: He doesn't seem to wield any real power at all. [[spoiler:Until he manages to usurp Princess Bubblegum's place in "Hot Diggity Doom".]]
* HundredPercentAdorationRating: Seems to be the sole reason why people recognize his authority. He says he rules Ooo, and they all believe him. [[CassandraTruth One of Bubblegum's goals is to prove]] [[TheWrongfulHeirToTheThrone that this is total bullshit]].
* BizarreAlienBiology: According to WordOfGod, he's made entirely out of ''earwax''.
** Confirmed in [[spoiler:"The Dark Cloud", when Crunchy throws him into the fireplace and he melts into a yellow-brown glob]].
* TheCaligula: When he's become ruler of [[spoiler:the Candy Kingdom via an election/coup]] the whole kingdom goes into chaos because of his total incompetence/inaction of being a ruler. [[spoiler:The giant comet in the sky]] certainly sped things along, but there were signs of dissent even before [[spoiler:the comet]] showed up.
* {{Crossdresser}}: After replacing Bubblegum as the Candy Kingdom ruler, he starts calling himself the "One True Princess", and not only wears dresses and feminine clothes, ''[[CrossTheLineTwice but also wears Bubblegum's old clothes]]''.
* {{Cult}}: It's implied that he runs one.
* EveryoneCallsHimBarkeep: Everyone Calls Him the King of Ooo
* GodEmperor: Claims that the ''sun'' belongs to him.
* LargeHam
* LaserGuidedKarma: [[spoiler: At the end of "Stakes" the Candy People '''finally''' turn against him for being a horrible ruler. The Banana Guards rebel against him and then Crunchy throws him into a fire place.]]
* MuggingTheMonster: It really doesn't get much worse than trying to threaten ''the Lich'' into joining your two-bit schemes. Surprisingly, he got away without being killed, "merely" having [[MindRape his mind]] exposed to nightmarish [[TheseAreThingsManWasNotMeantToKnow Things Man Was Not Meant to Know]].
* ScrewThisImOuttaHere: When he's trapped in jail with everybody that stood with him. He breaks out all by himself in a panic, claiming that his paperwork will never hold court.
* SheIsTheKing: Inverted; [[spoiler: at the end of season 6, he becomes the new princess of the Candy Kingdom.]]
* TheSociopath: While not as noticed by fans like other examples, he fulfills pretty much all of the requirements to count as one. He shows a LackOfEmpathy (willing to enslave, or apparently even kill a baby), and [[NeverMyFault Imperviousness to Shame]] (well, he thought he may be a bad ruler for a moment, but a moment later decided it's all Bubblegum's fault); he's a ConsummateLiar and {{Manipulat|iveBastard}}or; has a [[{{Pride}} Grandiose Sense of]] [[ItsAllAboutMe Self-Worth]], apparently genuinely believing he should indeed rule all of Ooo.
* TyrantTakesTheHelm: When he becomes [[spoiler:princess of the Candy Kingdom in Bubblegum's place, he makes everyone miss PB.]]
* VillainWithGoodPublicity: He's a conman and fraud who only cares about himself and yet everyone in Ooo seems to think he should be in charge, much to PB's chagrin.
* WouldHurtAChild: Shows no hesitation in "taking care" of Sweet P when he finds out his plan.

Marceline's old "Genius Wizard" boyfriend. They started living together in the Tree Fort (before Joshua) until Ash moved Marceline away from the Candy Kingdom to his current house. Then he sold her teddy bear to a witch, earning his girlfriend's anger.

->Voiced by Steve Agee
* AffectionateNickname: He calls Marceline "Mar-mar".
* CuteLittleFangs: They're a bit more rounded than most examples, though.
* DoesNotLikeShoes: Goes barefoot.
* DomesticAbuser: Of the emotional variety. He treats Marcie more like an object that should be his rather then a person.
* EyeScream: [[spoiler:Goes blind while he is beat up as he says "Ohh...I can't see...".]]
* FantasticRacism: He hates Marceline hanging out with "mere mortals".
* GiantFootOfStomping: Is the victim of one, eventually.
** SquashedFlat: [[spoiler:At the end of his introduction episode.]]
* GroinAttack: Also gets one of these.
* HateSink: In his sole major appearance, he is shown to be a tremendously sexist and abusive boyfriend to Marceline who sold her Hambo to the witch just for his own self-benefit. As a result, any comeuppance he receives is definitely well deserved.
* HoistByHisOwnPetard: The memory spell he used to try to trick Finn and Jake into retrieving the bad memory of him within Marcie's mind is used by Finn to show her why she dumped him in the first place. What's more the "mere mortals" he tricked join in on beating the crap out of him with Marceline.
* {{Jerkass}}: Is he ever.
* KickTheSonOfABitch: In ''Betty'' [[spoiler:Simon lays him out with one hit and steals his flying carpet. It's unethical to do towards someone who Simon doesn't know whether he is good or not but he deserved it regardless. What makes it funny is that Ash pretty much got knocked out by Marcie's surrogate father.]]
* LackOfEmpathy: Doesn't care about how his actions hurt Marceline, despite it being blatantly obvious they do.
* LargeHam: Just listen to him describing the sandwich he wants.
* ManipulativeBastard: Tricks Finn and Jake into going into Marcie's mind and getting the bad memory of him just to claim Marcie as his own.
* MagicalIncantation: His flight spell.
-->"Ashicus Flyicus"
* NeverMyFault: Never thinks that Marceline breaking up with him might have been his fault for selling her most prized possession.
* NoHoldsBarredBeatdown: Gets one at the end of his episode and it was richly deserved.
* SmallNameBigEgo: If the whole "You're not a Genius" bit is anything to go by.
* StayInTheKitchen: His demanding that Marceline make him a sandwich is what finally pushes her to [[GroinAttack retaliate]] against him.
* StrawMisogynist: Darn near parody levels of this. See directly above.

[[folder:Big Destiny]]
The off kilter leader of the Destiny Gang, a group of criminals in [[spoiler:Finn's alternate wished universe]].
-->Voiced by: James Kyson

* BadBoss: It's obvious that his henchmen are pretty terrified by him.
* {{Jerkass}}: Big time.
* LargeHam: He's pretty bombastic.
* OffscreenTeleportation: Used and lampshaded.
-->"Yeah! How did I even get here, son?"
* SinisterShades: Those evil-looking sunglasses should be a pretty big giveaway that Big Destiny's not a good guy.
* TheSocialDarwinist: To some extent. When Finn challenges Big Destiny to a fight to demand his crown back, Big D beats Finn, but gives him the crown anyway, seemingly impressed by the bravery Finn displayed. Further, at the end of the episode, his cronies run from Finn without saving him, and Big D expresses approval.
* ZettaiRyouiki: RareMaleExample. He appears to be sporting a Grade B.

[[folder:King Worm]]
->Voiced by: Erik Estrada
A giant worm that absorbs one's life force through their dreams.

* AGlitchInTheMatrix: Has a great power into putting people in their dreams, but said dreams tend to be very off to keep his target prisoner.
* DreamWeaver: His bread and butter.
* EarlyBirdCameo: Showed up at the end of ''Evicted'' in the first season before getting his own episode in season 4.
* LotusEaterMachine: He ''is'' one. He tries to put his victims into a nice or normal setting while he sucks their life energy.
* PokeThePoodle: In his first appearance, he hypnotizes Finn and Jake to hug him.
* YourWorstNightmare: Imagining them is the key to defeating him.

A serious hitman with powers over fire.

* AssassinOutclassin: Ice King attempts to have Scorcher killed by contacting ''another'' hitman to take him out. Said hitman is almost immediately defeated when Scorcher burns through his PoweredArmor, leaving the small guy inside to run away in fear.
* {{Expy}}: Possibly one of [[WesternAnimation/AvatarTheLastAirbender Combustion Man]], what with the whole "stoic voiceless fire based assassin" thing.
* FireballEyeballs: When he gets mad.
* {{Foil}}: Hyper-competent fire elemental to counter Ice King's inept ice magic.
* JustFollowingOrders: Implied, though maybe he [[AxCrazy just likes to kill]]
* KnightOfCerebus: Parodied. He's completely stoic, is absurdly competent, actively tries killing Finn and Jake in his sole episode, and has no personal comedic quirks. The thing is, unlike The Lich, who instantly makes the atmosphere and story darker once he shows up, Scorcher is instead used as a StraightMan to Ice King, who treats him as if he's an old friend of his.
* PlayingWithFire: Obviously.
* ProfessionalKiller: He is a hitman.
* RedEyesTakeWarning: Red eyes, meaning he has fire power.
* SuperSmoke: He has the ability to turn into a black smoke.
* TheVoiceless: He never talks.

-->Voiced by: NoahNelson

A demon who created the Demon Sword with his own blood, which was taken by Jake's father, Joshua. He really, ''really'' wants his blood back.

* BloodMagic: His power comes from his blood and the blood he drains from others. [[spoiler:Finn uses this to trick him into killing himself.]]
* HoistByHisOwnPetard: [[spoiler:Finn kills him by exploiting his method of BloodMagic to trick him into inhaling blessed grape juice.]]
* HolyBurnsEvil: Is injured and weakened by holy water. [[spoiler:Finn kills him by tricking him into absorbing blessed grape juice.]]
* KilledOffForReal: [[spoiler:At the end of "The Pit" he's gone for good. He wasn't sealed into anything this time.]].
* OhCrap: [[spoiler:Upon realizing that he just inhaled blessed grape juice.]]

[[folder:Ooze Monsters]]
Humanoid creatures created in the aftermath of the Mushroom War, oozing green slime from all their orifices. They plagued Simon and young Marceline in their travels, [[spoiler:and they're still around, awoken by PB, Finn, Jake and James.]]

* AlwaysChaoticEvil: [[spoiler:Their presence is evil enough to cause the Gumball Guardians to awaken.]]
* BodyHorror: They are all bloated and deformed, but some are worse than others, such as some with holes in their chests or limbs growing out of their mouths.
* NuclearNasty
* Really700YearsOld: [[spoiler:They've survived to the present day, and many have escaped from the crater they were buried in.]]
* SicklyGreenGlow: Their ooze.
* WasOnceAMan: They appear to be mutated humans, given their presence in the city.
** The appearance of [[spoiler:James-like ooze monster]] seems to confirm this.
* ZombieApocalypse: They appear to spread their affliction to those they attack. [[spoiler:Including Candy People.]]
** NotUsingTheZWord: They are never once referred as zombies. [[JustifiedTrope Understandable]], [[OurZombiesAreDifferent since the show has already introduced a totally different kind of zombie]] in ''Slumber Party Panic.''

-->Voiced by Creator/MauriceLaMarche

An evil anti-magical being summoned by Bufo, Laser Wizard, and Forest Wizard. He nearly destroys wizard city before being stopped by [[spoiler:Betty]].

* AntiMagic: A being purely composed of it.
* BilingualBonus: His name is a mix of "Bella" italian for "beautiful", and "Noche", spanish for "night". Strangely, despite being male, the feminne "Bella" is used rather than the masculine "Bello"
* BishonenLine: His regular form is a massive face made out of moss while his "true" form is a beautiful, androgynous humanoid.
* CripplingOverspecialization: His AntiMagic powers mean that no wizard can hope to harm him. However, [[spoiler:he doesn't have any other abilities, so a normal human like Betty can just cold-cock him with little effort.]]
* PowerNullifier: He can strip magical beings and objects of their power.
* SinisterGeometry: A massive black cube surrounds him. A failed attempt to destroy it makes it grow into more complex shapes.

The prototype to BMO, who was designed to receive love rather than give it.
* BottomlessMagazines: Equipped himself with a weapon that materializes cannonballs out of thin air.
* DisneyVillainDeath: [[spoiler: Knocked off a cliff from the recoil of his weapon when BMO grabbed it.]]
* KillerRobot: Essentially what he became.
* PsychoPrototype: He was a MO designed with a complex motive of love before BMO, but he became a {{Yandere}}.
* {{Yandere}}: Oh big time.

An ancient being of destruction awakened by Maja in "Something Big"
* AttackItsWeakPoint: "His weakness is his brain seed!"
* AttackOfTheFiftyFootWhatever: He is easily one of the largest creatures in the show.
* BeneathTheEarth
* BloodKnight: In his own words, he only understands destruction, and only fights to the death.
* DeathSeeker: [[spoiler:His last words are to thank Finn when Finn strikes the blow that kills him.]]
* FishOutOfTemporalWater: He has no idea what landmarks like the Candy Kingdom are and notes how different the world is since he has been asleep.
* FlunkyBoss: He can summon flesh-colored regenerating humanoids from a portal that hatch from eggs.
* FriendlyEnemy: He's pleased to see the Psychic Tandem War Elephant, although perhaps only because it's good to see a familiar face in a strange world. That familiarity doesn't get in the way of Darren trying to kill the Elephant at all either.
* WhenTreesAttack: His mouth even resembles a pine tree.

[[folder:The Vamps]]
The main antagonists of the "Stakes" mini series. Sometime after the Mushroom Wars they preyed upon the last of the human survivors. Marceline opposed them to protect her newfound friends. [[spoiler: Though in the process due to her soul sucking powers, gained their abilities as a result after killing them. In the final battle against the king, he bit her and changed her into part vampire to ensure his kind live on.]]

!! In General

* DividedWeFall: When they were revived, Empress, Hierophant and Moon disagreed with the Vampire King on how to continue their kingdom and went their separate ways.
* LastOfHisKind: Marceline had all but wiped them out [[spoiler: so in turn, the vampire king turned her into a vampire to make sure his kind still lived on.]]
* OurVampiresAreDifferent: Each have their own unique abilities and features.
* SealedInsideAPersonShapedCan: All of their vampire essence is contained within Marceline after she defeated them. So when Bubblegum used her machine to turn her back into a regular half-human demon, the black goop that was her vampire essence allowed them to escape and revive, kicking off the mini-series.
* TarotMotifs: Their names reference four of the Major Arcana. They're all [[MeaningfulName meaningful in some way]] to their characterization and their respective cards' inverted positions can be related to their downfall.
** The Empress represents beauty, femininity and abundance; she is the most traditionally feminine of the group, the most irate about the decadent standards they used to have and is regarded as highly beautiful by Ice King. Inverted it represents a dependence on others, something exemplified by her MO of enthralling people to serve her. Ultimately she is defeated when the IWorkAlone Marceline receives some much needed assistance from her friends after the Empress abandons Ice King.
** The Fool represents innocence, spontaneity, and free-spiritedness; The Fool himself acts like an incautious, carefree child. The reverse position can reference a disregard to obvious dangers, befitting the Fool's TooDumbToLive personality. Marceline herself acts very fooldhardy when she elects to go after all the vampires by herself, starting with the Vampire King first before being distracted with the threat of the Empress against Ice King.
** The Hierophant represents institutional wisdom, religious teaching, and traditional belief systems; this one is the most traditional vampire, beholden to the old ways such as VampireInvitation. Jake meanwhile completely relapses into his intense vampire phobia. In a reversed position it indicates a downfall by an inability to adapt, with the Hierophant being very slow and irate about technology and ultimately destroyed by his upholding to old vampire standards.
** The Moon represents dreams, deception, and illusions; she is found sleeping, looking deceptively harmless with some ambiguity regarding how much of her abilities are being deceptively hidden, poetically described or literally explained. There is a lot of dreaming by Marceline in her episode. Reversed it represents confusion, regarding the PoorCommunicationKills that also occurs in her episode, and everyone's baffled fear regarding her.
* YouKillItYouBoughtIt: Sort of, when Marcy killed them she sucked in their souls which granted her their abilities. Though it's implied if she didn't, they would reform eventually. In a more straightforward manner, killing the Vampire King is what made her the Vampire Queen.

!! The Vampire King
->Voiced by: Billy Brown
* ArchEnemy: To Marceline, even called such in the episode description.
* BerserkButton: The only time he really gets mad is when the Hierophant suggests they go back to the old-fashioned way. He almost crushes him with telekinesis as he points out their old way of doing things lead to their extinction.
* DefectorFromDecadence: Part of the reason he lets his group disband. Their old way of doing things as a horde lead to their extinction. He's partially irritated at the Empress' suggestion they get back to their old standards like blood with gold-flecks in it, as it didn't add any flavor.
* HumbleGoal: Before coming BackFromTheDead he just seems concerned with making sure his species ''would continue to exist''. [[spoiler:He was fine with dying so long as Marceline would be the last vampire in his place.]]
* KingOfBeasts: A lion and VampireMonarch.
* LargeAndInCharge: Largest vampire in the group.
* ManOfWealthAndTaste: Wears a fine looking white suit.
* MindOverMatter: Demonstrates telekinetic abilities.
* MixAndMatchCritters: A large vampire with the head of a lion, lizard-like claws for hands, and bird talons for feet.
* NotSoAboveItAll: Despite being a stoic and imposing VampireMonarch who everyone sees as the BigBad, he has a few silly moments such as his [[TheComicallySerious unflinching]] HeliumSpeech after being [[GroinAttack kicked in the groin]] and when his grand speech leads to him splashing around in water [[StockUnderwear wearing only briefs]]. In the case of the latter, he becomes so consumed ChewingTheScenery that Marceline has to shout at him and remind him what they were talking about beforehand.
* OddNameOut: The Vampire King is the only vampire not directly named after a Tarot card, though his name is analogous to The Emperor, while his slightly more monstrous design [[spoiler: and desire to escape the chains of fate and the endless cycle of fighting, death and rebirth that comes from being a vampire]] evokes The Devil card. His grandiose speech also name drops Wheel of Fortune and The Chariot.
* PocketDimension: Through unknown means created an invisible space that filters out sunlight.
* RaisingTheSteaks: He is a ''lion'' that was turned into a vampire.
* ReasonableAuthorityFigure: Unlike most vampire villains he's a very calm and reasonable person. He spends his fights with Marceline trying to sincerely reason with her and exhibits none of the sadism typical of vampire big bads. He isn't even a BadBoss, simply letting his group disband on their own separate ways when their differences prove irreconcilable.
* TokenGoodTeammate: The Vampire King is the only vampire before Marceline who is, [[AmbiguouslyEvil if not outright good]], at least very thoughtful and [[PragmaticVillainy pragmatic]]. He only considers drinking blood as a means of subsistence, not something to indulge in, and doesn't speak condescendingly of their victims. [[spoiler:Once he discovers there's a way to stop ''being'' a vampire, he decides to use it.]]
* UpliftedAnimal: He was apparently a non-sapient animal before becoming a vampire. [[spoiler:And appears to go back when he stops being one.]]
* VampireMonarch: The Vampire King
* VegetarianVampire: After resurrection, he elects to eat only animals like everyone else.
* VillainTeleportation: Disappears and reappears elsewhere.

!! The Empress
->Voiced by: Rebecca Romijn
* AllEncompassingMantle: Has a veil covers her eyes until she needs to hypnotize someone.
* HypnoticEyes: Has these when she pulls back her veil.
* {{Invisibility}}: One of the powers she possesses and the main power Marceline gains from her when she's defeated.
* OfCorsetsSexy: Uses a golden snake as a corset.
* YouHaveFailedMe: Once she realizes Ice King wasn't really controlled by her powers, she pretty much disowned him as she found he was too stupid for a servant.

!! The Fool
->Voiced by: Ron Funches
* DoesNotLikeShoes: Completely barefoot.
* {{Flight}}: His main power and what Marceline gains from him when he's defeated. He spends all his time off the ground.
* TheImp: He's practically non-malicious. All he does is float around cracking jokes, treating everything like a game.
* TooDumbToLive: Not exactly one for self preservation. Both times, he's the first one to get staked because he doesn't bother to protect himself.
* UndyingLoyalty: The only one not to abandon the Vampire King when the others disbanded.

!! The Hierophant
->Voiced by: Music/PaulWilliams
* TheDragon: Although he defects from the Vampire King, he is ostensibly the most dangerous vampire aside from him and is the second-to-last vampire Marceline fought in her flashback. His OneWingedAngel form also nearly killed Marceline with its scorpion venom.
* FullBoarAction: He changes into a vicious-looking wild boar more than once.
* GoodOldWays: Hierophant left the Vampire King because he refused to go back to the old ways of vampirisim. Although he still follows ''Adventure Time'' rules, taking this attitude to silly extremes ("What is all this ''tacky plastic rubbish?!''") and peppering his speech with odd bits of slang despite being "old-fashioned".
* HoistByHisOwnPetard: He's incredibly proud about following the GoodOldWays...and ends up disintegrating when he's accidentally knocked into a house-shaped Jake [[MustBeInvited without being invited in]].
* HornedHumanoid: Has flesh-colored horns in his default form.
* MagicPants: Can completely shift his clothes around as well with the specific [[SpottingTheThread exception of his boots]].
* MorphicResonance: He can't lose his mustache...or boots, for whatever reason.
* MustBeInvited: The only example of this among the vampires, for some reason. Pep But calls him an "old-timey Revenant", [[OurVampiresAreDifferent implying that there are different subspecies of vampires with different rules]].
* OneWingedAngel: Turns into a horrifying amalgam of animal parts when fighting the crew.
* TheStarscream: After all the vampires go their separate ways, Hierophant is the only one to actually plot against the Vampire King.
* VoluntaryShapeshifting: His main power and what Marceline gains from him when he's defeated. He mostly uses it for weapons if not disguising himself.

!! The Moon
->Voiced by: Creator/BeauBillingslea
* EvilSoundsDeep: When she finally does speak, it's a very deep demonic voice.
* {{Lunacy}}: Her name aside she implies that her power is connected to the moon but it's ambiguous if she was being literal or poetic. There is some credence to in vampire lore (the title character of ''Literature/TheVampyre'' was another DaywalkingVampire who was simply stronger in moonlight) but it's pretty obscure.
* NighInvulnerability: Completely hard to kill, Finn and Jake stake her several times ''while she's sleeping'' and even drag her out into the sunlight. Nothing works. She only goes down because Peppermint Butler manages to incapacitate her with a tree trunk-sized stake to the back; Marceline actually absorbs her while she's ''still alive.''
* GoodThingYouCanHeal: Her main power and what Marceline gains from her when she's defeated, she has very strong healing. The Fool refers to her as a "backwards egg" because a simple crash on the head ''completely caves it in'' before her healing restores her. Even dragging her into the sunlight doesn't do anything.
* JustToyingWithThem: Finn notices when she's chasing after Jake and him that she doesn't really seem to be picking up speed and comes to the conclusion she's just messing with them.
* RefugeInAudacity: Unlocks a safe just by repeatedly yelling the word "pigs".
* StringyHairedGhostGirl: A dead ringer for one, except with a dark tunic instead of a white kimono.
* TheQuietOne: Rarely utters a word while with her company. It's isn't until she's chasing Finn and Jake that she finally speaks.
* UnusualEars: A single bat-like one in the middle of her forehead. Marceline described her as having "a head like a garden trowel".
* WhosOnFirst: PB instructs them to "[guys] take her back" to Peppermint Butler's poison lab but they mishear it as "stake her back" which is completely ineffectual. Turns out that Peppermint Butler staking her back with a large enough stake was enough to immobilize so Marceline could suck up her essence.
[[folder:Dr. Gross]]
A living, contemporary human from "the island", obsessed with cybernetics and building strange animal hybrids.
* AffablyEvil: Her cheer and enthusiasm charm Finn and Jake, until she reveals she's had them unwittingly paralyzed so she can operate on them.
* LegoGenetics: Her second specialty is making hybrids. Animal-animal crosses aren't the least of it: among other things, she's somehow managed to splice a flan pudding with the common fly.
* TheReveal: She's a genuine present-day human, and an exile from an island full of ''other'' surviving humans.
* SlowlySlippingIntoEvil: [[spoiler:She used to be in charge of training Seekers for Founders Island, but slowly became obsessed with making hybrids, and ultimately (accidentally) unleashed a plague that wiped out nearly two-thirds of the island's population.]] We don't learn what became of her after that, but by the time we meet her in "Preboot", she's already a full-blown supervillain.
* {{Transhuman}}: Describes herself as Human+, a real-world transhumanist term. According to her, the next logical step from glasses and artificial hearts is scissor hands and telescoping spider legs.
* TranshumanTreachery: Her ultimate plan is to build a hybrid army, return to the island, and [[UnwillingRoboticisation forcibly convert everyone there into cyborgs.]]

!!Past Characters

First appearing as a ghost in third season episode, "The Creeps", Shoko was a one-armed vagabond and mercenary with a tiger companion when she was still alive, and stole a powerful amulet from Princess Bubblegum in the time of the Candy Kingdom's founding. She dies in the attempt by falling into a radioactive river, but as "the Ghost Lady," she haunts the vault of Finn's mind, yearning for atonement. Finn is actually her reincarnation.

-->Voiced by: IsabelleFuhrman

* ActionGirl
* ActionPet: Her tiger, who is also her mount.
* AmbiguouslyHuman: Even though she has a name and upbringing from a distinctly human ethnicity, it's not quite certain what kind of humanoid she is.
* AnArmAndALeg: [[AbusiveParents Her parents trade her right arm for a laptop]], and she's taught that it's a worthy trade.
* ArtificialLimbs: Bubblegum makes her a robot arm in return for helping [[spoiler:build the Gumball Guardians]].
* AscendedExtra: Originally part of a one-off GainaxEnding gag in "[[spoiler:The Creeps]]".
* TheAtoner: The reason why [[spoiler:she haunts Finn's dreams. She wanted to return Bubblegum's amulet that she stole in life.]]
* BodyHorror: Falling into a moat of radioactive MutagenicGoo turned her into a weird worm-like creature. On the plus side, her right arm grew back.
* ChekhovsGunman: Turned out to be a lot more important than she first appears...
* ContinuityNod: [[spoiler:She shares the trademark artificial arm that most alternate versions of Finn possess, highlighting her relation to him as his prior incarnation.]]
* {{Foreshadowing}}: Shoko is missing an arm, [[spoiler: as do all alternate universe versions of Finn. As of "Escape From the Citadel", Main!Finn is finally missing one too]].
* HandicappedBadass
* HilariouslyAbusiveChildhood: Her parents traded her arm for a laptop, teach her that computers are worthy of such a tradeoff, and she just thinks such a sentiment is completely normal.
* NuclearNasty: She emerges from the radioactive river as one, but quickly dies. [[spoiler:She then haunts Finn in that form]].
* OurGhostsAreDifferent: [[spoiler: Her first appearance in "The Creeps", as well as in her cameo appearances afterward. "The Vault" implies that the castle from "The Creeps" was originally the base of the Bath Boy Gang who gave Shoko her final job, which suggests that she wasn't exactly a ghost, but part of a past life vision Finn was having.]]
* ParentalAbandonment: Left at a dojo by her parents.
* PastLifeMemories: [[spoiler:Most of what's known about her is from Finn's mental "Vault"]].
* {{Reincarnation}}: [[spoiler:The most recent past life of Finn]].

[[folder:Marceline's Mother]]
-->Voiced by: Rebecca Sugar

First seen in a flashback in "Everything Stays", she was a human woman who gave birth to Marceline right before the Mushroom War.
* AmbiguouslyBrown: She either has a dark tan or may have mixed blood in her family.
* CreatorCameo: Voiced by Rebecca Sugar, an ex-storyboard artist responsible for much of Marceline's development.
* GoodParents: From the little that is seen, she certainly does a good job raising a half-human/half-demon child (presumably by herself mainly).
* InterspeciesRomance: Had one with Hunson Abadeer at some point.
* NoNameGiven: We're never told her name, and we only know that she's Marceline's mother from the conversation she was having with her.
* PosthumousCharacter: Likely dead due to how far off into the future the series is. She only shows up briefly in a flashback.
* TheUnreveal: Beyond her name being unrevealed, just how she got into a relationship with Hudson Abadeer, especially considering this was before the return of magic. In fact, her first words heard was her finishing this story to a young Marceline:
--> '''Marceline's Mother:''' Then he said fine. And that's the story of how I met your dad.

[[folder:Urgence Evergreen]]
-->Voiced by TomKenny
Millions of years ago, Earth was protected by four elemental guardians representing Ice, Flame, Candy and Slime. The strongest in their number was Urgence Evergreen, master of ice. With this power and stature came arrogance and would lead to his undoing in an effort to stop a sinister comet through the creation of a magical wishing crown.

* AnIcePerson: The original one on Earth/Ooo
** ElementalEmbodiment: He is the elemental of ice.
* GoodIsNotNice: Despite being an arrogant, weapons-grade JerkAss and [[WellIntentionedExtremist extremist]], he ''is'' genuinely trying to save the world from mass destruction.
* HeelRealization: [[spoiler:When Gunther is driven to madness by the crown, he tries telling him to use focusing chants to regain his sanity "like I taught you", only to realize he never got around to teaching him anything.]]
* JerkAss: Takes Gunther for granted and continually keeps him at a distance and refusing to teach him magic. He also freezes his colleagues when they choose not to get involved with Wish Magic.
* MeaningfulName: Evergreen trees thrive in cold, northern climates.
* RedHerring: The episode of the same name suggests that he might have been [[{{Reincarnation}} reincarnated]] as the Ice King, considering they're both wizards with ice powers, share similar physical appearances, and even have the same voice actor. [[spoiler:The episode "Elemental" reveals that he's not: Ice King is just Gunther's imitation of Evergreen, while his most recent reincarnation has been a HumanPopsicle since before the Mushroom War.]]

-->Voiced by PamelaAdlon
A young green dinosaur that Evergreen granted intelligence to serve as his assistant. Despite Evergreen's refusal to teach him magic and continually putting him down, Gunther sees Evergreen like a father and eagerly jumps at the chance to learn magic or join on Evergreen's adventures. Accompanied by a yellow proto-mammal cat named Nina.

* AnIcePerson: [[spoiler:Becomes the original Ice King after making his wish on the crown]]
* BrainUploading: [[spoiler:His mind lives on inside of the crown, along with everyone else who's ever worn it, including Simon and the original Santa Claus.]]
* HeroWorshipper: He remains extremely loyal to Evergreen, no matter how badly he gets mistreated by him. In the end, his wish to emulate Evergreen is so great that [[spoiler:it overpowers his desire to save the world, turning him into the first Ice King and allowing the comet to destroy all life]].
* MadnessMantra: After [[spoiler:wishing to become more like Evergreen]]. Gunther, no! Gunther, no! Gunther, no! Gunther, no...
* TheManBehindTheMan: A non-villainous variant. [[spoiler:He winds up becoming the original influence of Ice King's crown.]]
* OneSteveLimit
* UpliftedAnimal: Gained intelligence and speech when Evergreen mutated him in the egg.
* WithGreatPowerComesGreatInsanity: [[spoiler:When using the wishing crown, his desires to be like Evergreen emerge, turning him into the original Ice King, and all he can do is continually chant "Gunther No" while using ice magic]].

[[folder:Patience St. Pim]]
A woman from before the Mushroom War who is the newest Ice Elemental. She froze herself before the bombs fell and was unfrozen by Ice King, Finn, and Jake. She wants to be friends with the other elementals (PB, Flame Princess, and Slime Princess) but they don't like her since she had the Ice King kidnap them.

* AmbiguouslyEvil: She's trying to make friends with the other elementals and [[StealthMentor teach them to use their powers]], but the lengths she'll go to do such things are quite extreme and her ultimate plans seem uncertain.
* AnIcePerson: As the Ice Elemental, her powers are equal to or greater than Ice King's as well as more fine-tuned. Note how smooth and clean-looking her ice constructs are.
* ElementalEmbodiment: The reincarnated Ice Elemental from before the war.
* IronicName: Her name is "Patience" but she is extremely hyperactive.

-->Voiced By Ava Acres
Jo (AKA Bunny Girl) Is a young girl first appearing in the Stakes mini-series in which she befriends a younger Marceline. She later stars in the Adventure Time Islands Graphic Novel.

* ActionGirl: As she spends more time in the wilderness of Founders Island she learns how to survive and grows into an action girl.
* CallingTheOldManOut: [[spoiler: At the end of the Islands graphic novel she calls out Two Bread Tom on his extreme paranoia of the nature and wild life of the Island.]]
* NatureHero: Seems to have become one by the end of the Islands Graphic Novel.
* PosthumousCharacter: Considering she was around almost a thousand years before the events of the show and is a normal human it's really likely that she is dead long before the time of the show.
* WhatHappenedToTheMouse: So far we haven't learned what happens to her after the Islands Graphic Novel or what her ultimate fate is.


!!Characters from ''Adventure Time: Islands''

[[folder:The Islands]]

The Islands are an Archipelago in which Humans live. They were founded by Two Bread Tom and his followers nearly a thousand years before the events of the show.

!!The Islands in General:
* DefectorFromDecadence: The 'Hiders' are people who try to escape the Island.
* FantasticCasteSystem: Seem to have a some sort of caste system, although notably not every member of the Island society seems to be apart of a caste. The three currently known castes are Experimenters[[note]]Most likely the scientists or engineers of the Islands.[[/note]], Seekers[[note]]Seems to be a sort of soldier or guard caste tasked with preventing people from escaping the Islands[[/note]] and Helpers[[note]]They seem to be the doctors and medical professionals of the Islands.[[/note]]
* PoliceState: A society which has a group of elite solders who drag any one attempting to leave off to re-education? [[SarcasmMode Yep, defiantly not a police state]].


-->Voiced by: Helena Mattsson

A human woman of Swedish decent at a scientific outpost on the Weather Island.
* SoleSurvivor: The other people at the base all died from the harsh climate and dangerous giant animals -- [[GoneHorriblyWrong which they caused in the first place.]]
* TheUnintelligible: She only speaks Swedish,, though she does seem to start figuring out what Finn's saying, eventually.

-->Voiced by: Jasika Nicole

A human "Experimenter" from the Islands.
* AmbiguouslyGay: There's significant room to interpret her {{Childhood Friends}}ship with Kara as [[ChildhoodFriendRomance developing into something more]]. [[spoiler:In particular, when Susan/Kara and Frieda ride off, Frieda is hugging Susan's neck from behind.]]
* DarkskinnedRedHead: The one time her hood is removed we see she has long red hair.
* FantasticCasteSystem: She's a member of caste of humans raised to be scientists.
* IJustWantToBeFree: She's one of many humans who wants to leave [[HiddenElfVillage the Islands]], feeling [[GildedCage they can't be free while they live there]]. Despite Kara being tasked with preventing escapes, Frieda gets her reluctant support in making a vehicle to ride out, [[spoiler:but her attempted is crushed at the last second when Dr. Gross finds them and forces Susan to destroy her vehicle.]] Later on, [[spoiler:[[MoreThanMindControl a combination of re-education and being stuck for years]] has convinced her that wanting to leave was a bad idea. Susan and Finn eventually get her to remember what she wanted in the first place, and she becomes the first human to willing move out of the Island.]]

[[folder:Minerva Campbell '''(MAJOR SPOILERS)''']]
-->Voiced by: Sharon Horgan

Finn's mother, a human "Helper" from the Islands. She met Finn's father Martin after he was injured trying to escape. When Martin ran from attackers with Finn in tow, accidentally landing them both off the island, Minerva was so distraught that she rededicated herself to her work harder than ever. After a deadly virus outbreak leaves her terminally ill, Minerva uploaded herself into the Islands' computer, created an army of robotic version of herself to take care of everyone, and became the de facto ruler of the Islands.
* HundredPercentAdorationRating: As a doctor, she was so trusted that people believed what they ''knew'' was complete nonsense just because she said it.
* AntiVillain: Everything she does comes from a genuine desire to keep people happy and safe.
* BigBad: She's the one running the Islands, keeping anyone (especially Finn) from escaping.
* BrainUploading: Dying from a plague, she uploaded her ''entire body'' into a computer network.
* ChronicHeroSyndrome: Her son got his natural urge to help people from her. She even went as far as to upload herself into a computer so she could keep taking care of everyone in Islands after her body died during a plague.
* ExhaustedEyeBags: Her tireless work as a doctor shows in the slight bags under her eyes.
* FantasticCasteSystem: She's born in the "Helper" cast, which consists of doctors and aid workers, and is very much into the role. Despite this, she seems to have eliminated the system herself, as the robots replace the visible function of Seekers and Helpers (the latter all having died) while Frieda has gone from an Experimenter to working at a toy shop.
* FlorenceNightingaleEffect: She met Martin when he was in the hospital for two broken legs and she was his nurse. They started dating after she took pity on him and saved him from being taken to re-education.
* {{Foil}}:
** To Finn. They enjoy their work in helping others who are in need, which both can do in extreme methods. Finn takes his method of physical helping violently so long as evil is the only one trampled across his path, Minerva helps people exceptionally but peered close enough to doom her people nearly twice in her choices.
** To Princess Bubblegum. They both shown their work to Finn on how they operate their respective colonies scientifically. Bubblegum is able to let go of her totalitarian approach with Marceline's help, while Minerva is still plagued by the thought of her husband abandoning her along with her own child only for said child help her in getting a hold of herself.
** To Martin. Martin was a self serving sociopath who only ever [[ItsAllAboutMe cared about himself]], while Minerva is empathetic to the point that she made her entire existence about helping others. Neither of them are shown to be well adjusted individuals though for very different reasons.
* FollowInMyFootsteps: She finally see her son as something other than [[MyBelovedSmother a child to be kept safe]] when she finds out Finn grew up to be a "helper" like her.
* GenerationXerox: Her character design is not only as similar as Finn's, they are just as helpful to the people around them, [[{{Foil}} just in different methods]].
* HairOfGoldHeartOfGold: Just like her son, Minerva has blonde hair and is a good-hearted person who wants to do nothing more than help people. It's true her methods can be pretty extreme, but Minerva ultimately means well.
* HeelFaceTurn: After seeing Finn's desire and acts to help people despite growing up in Ooo, she decides maybe the outside isn't so terrible and that people should be able to leave if they want.
* HorribleJudgeOfCharacter: She fell for Martin even though she knew he was manipulative and even explained how he'd take advantage of her before doing so. It's highly ambiguous whether [[LoveRedeems she made him a better person]] (at least temporarily) or was [[TheFarmerAndTheViper just a naive do-gooder exploited by a con man]].
* LastOfHerKind: Unless you count Finn, she's the last Helper after the rest were killed treating a plague. [[BrainUploading If you consider her to be alive.]]
* LikeParentLikeChild: Minerva and Finn both [[ChronicHeroSyndrome dedicate their lives to helping people]], though Minerva takes this [[TotalitarianUtilitarian much further]].
* LikeParentUnlikeChild: Despite having the same core goal, her and her son's methods are complete opposite: Finn tries to protect people by fighting evil, sometimes to the point of being excessively violent. Minerva tries to take care of people to the point of coddling them.
* LogicalLatecomer: She's lived in a HiddenElfVillage all her life, and considers what Finn shows her of the rest of Ooo not just dangerous but also bizarre.
-->'''Minerva:''' Your world seems so chaotic. Your ruler is a piece of gum, your friend's a vampire, you dated a bit of fire--Your life is constantly in danger!
* MeaningfulName: Shares her name with the Roman goddess of wisdom and medicine.
* MissingMom: She was separated from Finn when he was a baby and he never got to meet her until their encounter in ''Islands''.
* OppositesAttract: A tireless, trusting, over-protective doctor who fell in love with a lazy, two-siding, self-serving conman.
* MyBelovedSmother: When she finds out Finn is alive and came to the Island, she insists he can't leave, even though he has a whole life outside.
* ProHumanTranshuman: She [[BrainUploading converted herself to a digital lifeform]] to keep helping people even after her body gave out.
* SanitySlippage: It's clear that losing Finn took a heavy toll on her psyche and dealing with a lethal virus that wiped out all of the helpers pretty much finished the job that started. All of her actions in the present are very realistically shown as not sane ones.
* TotalitarianUtilitarian: She makes sure everyone on the Island is happy and safe, never letting them experience anything else in life. When many people show signs of wishing to leave, she tries to [[UnwillingRoboticisation forcibly]] [[BrainUploading upload them into the computer]] so they can never leave.
* WalkingSpoiler: The fact Finn's mother is alive one of the first major twists of ''Islands''. That she's the BigBad of the arc is another.

!!Alternate Dimensions and Outer Space

[[folder:Deities and Cosmic Beings]]


An all-powerful being who resides in the center of the multiverse. He's close friends with the Cosmic Owl, and has the power to grant wishes (with a twist) to anyone who reaches him, and alter the course of time itself at will. [[spoiler:He is the product of an old man's dream, who keeps Prismo alive as long as he's asleep. However, the Lich kills his corporeal body in "Wake Up," ultimately killing Prismo as well. This did not stop him for long as he used a time paradox to return.]]

-->Voiced by: Kumail Nanjiani

* {{Adorkable}}: He's an extremely awkward, exceedingly nice guy.
* AlwaysSomeoneBetter: Despite being a very powerful entity, ''Crossover'' reveals that he does have someone he needs to answer to if something major (like the Space-Time Continnum being destroyed) happens. Considering what Prismo can already do and given what it might take to piss Prismo's boss off, that says a frightening amount of how powerful they must be.
--> '''Prismo:''' Now if that happens, my boss, ''let me repeat that, '''[[PunctuatedForEmphasis My. Boss.]]''' will hold '''me''' responsible.'' And by proxy, ya'll both will be in the dip too.
* AmbiguouslyGay: Prismo's pink-colored, he talks with a slight lisp, and he's "friends" with the Cosmic Owl and Jake, two males.
* BackFromTheDead: [[spoiler:He came up with a plan to bring himself back should he ever die, involving Finn and Jake. After Jake eats the last pickle Prismo made, he's sent to a weird place that seems to be outside time. A time double of Jake becomes the new dream host for Prismo.]]
* BadassAdorable: He's unbelievably sweet, but he can alter reality and grant a potentially infinite number of wishes of any kind to ''anybody.''
* BecauseYouWereNiceToMe: A variant in that he admitted that part of the reason he helped Jake was that he greatly appreciated Jake actively being friendly to him as his only other friend seems to be the Cosmic Owl.
** This extends to Finn as he was willing to risk himself to help Finn meet his dad.
* BenevolentGenie: He's nice to an almost absurd degree. How nice? He straight out tells Jake not to waste his one wish on something stupid, [[CallBack like a sandwich]], as well as explaining the fact that despite all of Prismo's power, he's still bound to giving wishes that have an "[[BeCarefulWhatYouWishFor ironic twist]]". Heck, he even ''very heavily'' hints at the ''proper'' wish Jake ''should'' make to fix the whole mess made with Finn's wish.
* CelestialBureaucracy: "Crossover" reveals that he does have a boss that is implied to be much more powerful than him. He does mention that should the Space Time Continuum be destroyed, this boss would hold Prismo responsible (and apparently his associates/friends as well, considering Prismo tells Finn and Jake that by extension, they'd be in trouble too.)
* CheatedAngle: He's almost always in profile but that seems to be by choice. He can turn his head despite his one-dimensional appearance.
* ConfirmedBachelor: He tells Jake that he prefers the single life because relationships require too many compromises, using the question of coordinating dinner plans as an example. Jake disagrees and says that he needs to find Prismo a girlfriend, although [[HoYay Prismo seems more interested in Jake's company than anyone else's]].
* CouldSayItBut: He stretches this trope about as far as it goes.
* TheCutie: ''GOOD LORD.''
* DidntThinkThisThrough: [[spoiler:He tried to help Finn with meeting his father by having the heroes bring his mortal body into the chamber, with the Lich in the room the entire time.]]
* DreamApocalypse: [[spoiler:The wish-granting genie is really the dream of the real and relatively normal man. Waking him up destroys the Wishmaster form, a crime worthy of the ''{{C|rystalPrison}}itadel''.]]
* FatalFlaw: [[spoiler:A bit of a different version as his flaw isn't necessarily "bad": arguably, he's too nice and trusting to people, possibly caused from his isolation from society and desire for friends. Allowing himself to temporarily die (and later permanently die) for someone he's only known for a little while exemplifies this.]]
* LiteralGenie: Played with. The wishes executed act like this in nature, but he admits that he doesn't do it deliberately because it is out of his control. Careful, specific wording can get around the BeCarefulWhatYouWishFor part, and although he granted [[OmnicidalManiac The Lich's]] wish as it was, he's nice enough to help Jake to wish for the right thing and screw The Lich over.
* LivingDream: [[spoiler:He is an entity born from the dreams of an elderly man.]]
* LivingShadow: He basically looks like a moving picture of a person on the floor and ceiling.
* NiceGuy: Really nice. He seems like an all around great guy.
* OhCrap: [[spoiler:When the Lich is about to wake him up instead. It makes a certain amount of sense. The Wishmaster form would simply be incapacitated until his mortal form goes back to sleep in a thousand years, whereas if the Lich kills him, he's kinda screwed.]]
* OurGeniesAreDifferent: He grants wishes like genies would, but he's two-dimensional, is physically like a shadow and he lives at the center of the multiverse.
* RealityWarper: He grants wishes that can alter the course of history.
* SenselessSacrifice: [[spoiler:He allows Finn and Jake to wake up his human form, thus destroying his Wishmaster form. He did that so Finn could be sent to the Citadel to meet his human father... who was a manipulative {{Jerkass}} extraordinaire, and had no interest on Finn at all.]]
* TimeMaster: Sort of. He uses wishes to allow people to navigate TheMultiverse and stays in [[NarniaTime his own time-sealed room]], but doesn't really ever leave it.
** His [[spoiler: revival involved the use of a special room with a bizarre flow of time. Beyond creating a temporal duplicate of Jake to serve as Prismo's new 'host', Finn's time double becomes the Finn Sword.]]

!!The Cosmic Owl
-->Voiced by Jeremy Shada in What is Life, M. Emmet Walsh in all other appearances

A mysterious and important entity in the land of Ooo, it appears to others in visions. It speaks in a Southern drawl [[TheOtherDarrin initially]] and is a friend of Prismo.
* AnimalisticAbomination: A golden energy owl that appears in others consciousnesses and according to the Why-Wolves capable of devouring entire populations if they prove too numerous.
* CosmicEntity: The exact details of his powers aren't clear, but the people of Ooo regard him as a being of great importance.
* DreamWalker: By entering people's dreams, he ensures that they come true, either literally or metaphorically.
* EnergyBeing: It is an owl that is made out of yellowish cosmic energy.
* NiceJobBreakingItHero: [[spoiler: In Hoots, he accidentally is present while princess Bubblegum was dreaming about the Candy Kingdom's destruction, meaning he accidentally doomed the kingdom to an unknown catastrophe]]
* OminousOwl: Subverted, it's less of a malevolent force and is [[BlueAndOrangeMorality more of a natural force]] with some hobbies.
* OnlyFriend: Prismo is his.
* PhysicalGod: Easily one of the most powerful entities in the series, but it does not directly interfere in the plot.
* RealityWarper: To a certain extent. The way his powers work mean that, whatever the person is dreaming, as long as he is present, it ''will'' come true in the real world.
* VerbalTic: He hoots whenever he says a word with an "oo" sound.
* VocalDissonance: One of the most ancient and powerful entities of the series, but it has a youthful, Southern drawl.


The King of Mars, and possibly the most powerful being in the ''Adventure Time'' universe, with the exception of Prismo.

->Voiced by: Pendleton Ward
* BalancingDeathsBooks: [[spoiler:He accidentally executed Jake thinking he was the Magic Man. He travels to the Eighth Dead World to bring him back, where he meets with Death. When Death refuses the payment of one penny, the King offers his immortality instead, killing him and turning him to stone (an exact replica of the Lincoln Memorial, in fact).]]
* EarlyBirdCameo: Lincoln appeared as early as the ''2008 short'' in a very... [[BigLippedAlligatorMoment weird scene]], and never came back until "Son of Mars" in 2012!
* FriendlessBackground: As revealed in "Sons of Mars":
-->'''Lincoln''': "My judgement was less than the standard by which I judge my peers... of which I have none."
* GodEmperor: He's the Martian King. He also appears to be a god.
* HeroicSacrifice: [[spoiler:In order to bring Jake back from the dead, he offers Death his own immortality.]]
* LargeHam: Ridiculously so.
* MyGodWhatHaveIDone: Upon [[spoiler:Jake's death, who he thought was the Magic Man]].
* NoIndoorVoice: Well, he's never really indoors.
* NonstandardCharacterDesign: Really the only character in the entire series drawn with vaguely realistic features.
* TheParagon: Finn refers to him as "the wisest, most honest superbeing of all time".

!! Grob Gob Glob Grod

A four-faced deity from Mars, and Magic Man's older brother.

->Voiced by: Melissa Villasenor (Grob), TomKenny (Gob), Tom Gammill (Glob), Miguel Ferrer (Grod)
* CainAndAbel: The Abel to Magic Man's Cain.
* CosmicEntity: But like the Cosmic Owl, the extent of his power isn't clear.
* GodIsDead: As of "Astral Plane." [[spoiler:Subverted in "Normal Man" where it's revealed they're not dead, but have become orbiting entities around Earth/Ooo.]]
* HeroicSacrifice: [[spoiler:Dies protecting the people of Mars from an incoming 'catalyst comet', which turns out to be Martin's spaceship]]
* MultipleHeadCase: He has four faces, each of which is a distinct being.
* PhysicalGod
* PiecesOfGod: His helmet fell down in ''You Forgot Your Floaties'', [[spoiler: Magic Man tried to use it and Betty's true human blood to take his power, but Betty took it instead. And Magic Man's. His 4 heads now orbit the earth. He's still sentient, but has chosen not to intervene anymore.]]
* StarfishAlien: Even by ''Adventure Time'' standards, he's one of the strangest-looking beings in the show.

!! Death
Ruler of the Land of the Dead, and has power over the deceased, able to raise them whenever he wills it. Best friends with Peppermint Butler.

-->Voiced by: Miguel Ferrer
* DealWithTheDevil: In "Sons of Mars", Death agrees to resurrect [[spoiler:Jake]] in exchange for [[spoiler:Abraham Lincoln's immortality.]] It's also implied that he once revived someone for Lincoln in exchange for a ''penny''.
* DemBones: He appears as an anthropomorphic skeletal equine.
* DontFearTheReaper: When we actually see him doing his job as opposed to dealing with people invading his territory and trying to resurrect people, Death is rather friendly. He prepares a special trip for [[spoiler:Simon]] with music and everything and both he and his target consider it a MercyKill. When said target decides to let the attempt to save him go on anyways, Death steps back to see what happens.
* IntangibleMan: Apparently you can't kick him if your brain is stupid. More seriously, WordOfGod states that even ''the Lich'' hasn't ''beaten'' him, merely ''cheated'' him.
* KissOfDeath: Subverted. A kiss from Death gives you your memory back.
* LightEmUp: Lives in a castle of light. [[LightIsNotGood This doesn't affect his morality much]].
* ManInWhite: Is decked out in all white clothing.
* NiceHat: Rocks a cowboy hat.
* NiceGuy: When not angered, he's a pretty nice guy surprisingly. This is particularly true with his girlfriend, Life, who he tries his best to get a birthday present for.
* RockMeAsmodeus: For a skeleton, he's quite skilled with a guitar.
* SeriousBusiness: Musical battles.
-->'''Death:''' Those the rules of the Land of the Dead; lose a music battle, lose your life.
* StealthPun: Plays DeathMetal in a musical battle.

!! Life
The personification of life. Death's girlfriend. Appears in the digital short "The Gift That Reaps Giving".

->Voiced by: Creator/HyndenWalch
* FertileFeet: Plants grow wherever she walks. When she kisses Death's cheek, flowers grow, which naturally wilt instantly.
* MultipleHeadcase: Has two heads.
* SnakePeople: She has two intertwined snake heads, referencing the [[https://en.wikipedia.org/wiki/Caduceus caduceus]].
* VoiceOfTheLegion: Her heads speak simultaneously, creating this effect.

!! Golb

A mysterious, yet threatening, cosmic entity that bears a striking resemblance to Grob Gob Glob Grod.

* IShallReturn: Grob Gob Glob Grod believes he will attack Mars again, which Magic Man agrees with...at first.
* OverlyLongTongue: Its always hanging out of his mouth.
* RetGone: Presumably what he did to Margles, since not even ''Prismo'' could bring her back! When he tried to, all he conjured up was a wastebasket, and he says that something like that has never happened before. Its possible the same thing happened to Finn's life in 'Puhoy'.

!! The Catalyst Comet

->Voiced by: Creator/TigNotaro

The otherworldly force that causes major, and often dangerous, changes in the world whenever it passes. [[spoiler: In "The Comet", it is revealed to be sentient and actually rather benevolent.]]

* AlienGeometry: Its really [[spoiler: a hollowed-out sphere with 3 eyes.]]
* ArcVillain: Sorta one for season 6. [[spoiler: Subverted when its revealed to not really be evil.]]
* AscendedToAHigherPlaneOfExistence: Its offer to Finn, which he declines. [[spoiler: Martin is eager to take it up, though.]]
* CometOfDoom: Causes catostrophic events whenever it passes. [[spoiler: It turns out that it isn't a malevolent force, but rather just an agent of change.]]
* LongList: [[spoiler: Tells Finn about the attributes and events in his life while bringing up its cosmic offer, and when Finn points out that its just droning on, the comet defensively states that its a long list.]]
* PurpleIsPowerful: It can alter the course of reality itself!
* WalkingSpoiler: [[spoiler:Due to its sentience and intentions.]]

An odd figure from the future, and narrator of stories he calls Graybles.

-->Voiced by: Creator/EmoPhillips

* GreekChorus: Acts as one for his Graybles.
* TheLegendOfChekhov: His Graybles appear to be thematically-tied short stories, [[spoiler:then we later learn that they're true accounts from 1,000+ years earlier.]]
* NoFourthWall: He routinely speaks directly to the viewers.
* SuddenlyFluentInGibberish: Peppers his sentences with nonsensical words. For example.
-->'''Cuber:''' I'll see you crimpy glimmers on triode flimpin' the diode.
* TricksterMentor: Sorta acts like this to the viewers because some of his Graybles are designed to mislead the audience.

[[folder:Farmworld Finn/Ice Finn]]
Finn's counterpart in the "Farmworld" universe created from a wish made to attempt to stop the Lich.

-->Voiced by: Jeremy Shada
* AlternateSelf: Of Finn the Human. Duh.
* AntiVillain: He becomes the new Ice King and starts freezing everyone on Earth [[ObliviouslyEvil because he thinks that's protecting them]].
* AnIcePerson: He puts on the Ice King's crown and uses its power.
* ArtificialLimbs: Has a crude mechanical right arm.
* ClassicalAntiHero: Compared to main world Finn, he's a lot less respected, and his initial goals are mostly on protecting his family.
* TheBusCameBack: [[spoiler:"Cross Over" reveals that the Farmwold was not erased by Jake's wish, it continued to exist in parallel with other realities. Our Finn, with Prismo's help, travels to the alternate timeline and exorcises both the Lich and the ice crown.]]
* DoesNotLikeShoes: Never seen wearing shoes. Possibly also an example of BarefootPoverty.
* {{Gonk}}:
-->'''Jake:''' Man, Alternate Wish-World Finn is mad uglies!
* TheNoseless: {{Inverted|Trope}}. His most significant feature from the regular Finn is that Finn's nose, like most of Ooo's, isn't visible.
* UnwittingPawn: [[spoiler:The Lich of his world tricks him into a plan to destroy every timeline, which Ice Finn falls for because he's too insane to see how ObviouslyEvil he is.]]
* WithGreatPowerComesGreatInsanity: Ice King's crown drives him very crazy, very fast.

[[folder:The Shape-shifter]]
A strange monster that Joshua and Margaret encounter during one of their investigations. Has only appeared in "Joshua and Margaret Investigates" so far.

* AliensAreBastards: Threatens a pregnant lady, [[spoiler:implants its egg into her husband]], and chuckles wickedly at the end of it all before going home...it's the embodiment of this trope, albeit one (somewhat) toned down.
* AlienBlood: It bleeds bright green blood after Margaret pricks it with a pin.
* DisappearedDad / MissingMom: Assuming gender even applies, it's one of these to its child [[spoiler:Jake the dog. Jake isn't even aware that he isn't Margaret's biological child since his parents never told him about their encounter with the Shape-shifter.]]
* EldritchAbomination[=/=]StarfishAliens: Which one is unclear because we can't quite tell if its origins are extraterrestrial or extra-dimensional. Regardless, assuming [[http://adventuretime.wikia.com/wiki/File:S6e16_Shape-shifter_special_face.png the last form it takes]] in the episode is its true form, it's one of the most bizarre beings in the series.
* FaceFullOfAlienWingWong: Inflicted this on [[spoiler:Joshua, with Jake being the result.]]
* SuperpowerfulGenetics: Passed on its powers and some of its physical traits to its [[spoiler:son Jake and his children.]]
* VoluntaryShapeshifter: Turns into many different forms in the only episode it appeared in so far, such as a baby, humanoids, a cat, an owl and many other unknown forms.
* WalkingSpoiler: [[spoiler:It's Jake's parent.]]
* WoundedGazelleGambit: Took on the form of a baby when Margaret had it cornered. Margaret (apologetically) punched it out anyway.

[[folder:Space Moth]]
A gigantic...well, moth that provided milk for the koala people before Martin hijacked it.
* AscendedToAHigherPlaneOfExistence: [[spoiler:Alongside Martin in "The Comet".]]
* BigCreepyCrawlies: It can easily fit Martin and Finn in its mouth.
* NonMammalMammaries: Somehow, despite being a moth, it provides milk.

[[folder:Martin 2]]
The leader of the koala people that Martin takes a liking to.
* MoralityPet: Averted. While Martin seems fond of him, even giving him a nickname, he leaves Martin 2 high and dry when it turns out he was the one the guards were after the whole time.
* OlderThanTheyLook: He turns out to be an old man, which we don't find out until a GrossUpCloseUp of him.
* PintsizePowerhouse: He is able to hold his own against several guards many times his size.

!!Other Characters

[[folder:The Snail]]
[[caption-width-right:280:[[spoiler:[[EvilSoundsDeep "Yes! One step closer!"]] ]]]]
A snail who can be seen waving at the audience in every episode. His only notable role in any episode was being mind-controlled by the Lich into releasing it.

-->Voiced by: Pendleton Ward
* ChekhovsGunman
* DemonicPossession: [[spoiler:He spends most of the series being possessed by The Lich. He was finally released when The Lich chose to BodySurf into Billy.]]
* EvilSoundsDeep: At the end of "In Your Footsteps" the possessed snails speaks in a deep voice.
* FreezeFrameBonus
* NiceJobBreakingItHero: Releasing the Lich.
* OnceAnEpisode: Because of this, he's actually appeared in more episodes than Princess Bubblegum or the Ice King.
* OrwellianRetcon: He was not originally in two episodes: "Trouble in Lumpy Space" and "Blood Under the Skin". But then he was later added in to both episodes before reruns aired.
* UnwittingInstigatorOfDoom: Was the reason the Lich was able to escape in the first place; he happened to hitch a ride in Finn's backpack when Finn and Jake were taken by Princess Bubblegum to the tree where the Lich was imprisoned. As soon as he crawled out, the snail was then possessed by the Lich into shattering the [[CrystalPrison prison of amber]] and freeing him.
* UnwittingPawn: See above.

[[folder:Morty Rogers]]
A traveling puppeteer, who it turns out isn't really using puppets, but a couple of imps who have possessed his ears.
* TheBarnum: He's not looking for customers to scam money out of, but rather, an unwitting patsy to pass off his curse to via moon ritual.
* MyGodWhatHaveIDone: He realizes how much he misses Chips and Ice Cream after being free of them for a day and running into them. He tries to secretly redo the ritual from outside the window of Finn and Jake's house, except that it was all a BatmanGambit on BMO's part to free the two imps.

[[folder:James Baxter]]
A talented horse named James Baxter ([[PokemonSpeak which is all that he can say]]) who travels by balancing on a beach ball. He spreads joy throughout the land.

-->Voiced by: [[https://en.wikipedia.org/wiki/James_Baxter_(animator) James Baxter]]


* AnimationBump: James Baxter moves more fluidly than the other characters, courtesy of guest animator James Baxter.
* CreatorCameo: James Baxter is the name of a renowned Disney and Dreamworks animator (most notably, he was the principal character animator for Ariel in ''Disney/TheLittleMermaid'' and Belle in ''Disney/BeautyAndTheBeast''), who also does the character's animation and voice.
* FunPersonified: He spends his time performing for other people (read: running around balancing on top of an inflatable ball), taking their worries away.
** Deconstructed on "Horse and Ball". After his ball pops, he becomes depressed because he feels he no longer has a purpose. [[spoiler:He then realizes that he has spent so much time making others happy he had no time to make ''himself'' happy. When Jake recovers a whole bunch of balls for him, he rejects them and instead dances for the pure joy of it.]]
* HeroicBSOD: Undergoes one in "Horse and Ball" after his ball pops.
* LineOfSightName: He comes up with his name when he sees a box labeled "Games" and a sign reading "Bookstore".
* PokemonSpeak: All he can say is his own name.

[[folder:Island Lady]]
A living island that the Ice King washes up on. They soon become fast friends. She also dates the Party God, who often ignores her.

-->Voiced By: Creator/RikiLindhome

* AmbiguouslyBrown: Might be Latina, judging by the lyrics to her song.
* GeniusLoci: She's a living island.
* {{Nice G|uy}}irl: She provides a place for Ice King to stay and sings for him.
* PlatonicLifePartners: While the Ice King lives with her. One of his few genuine friendships.
* WeakWilled: She can't bring herself to break up with the Party God even though she really wants him gone.
* YouAreBetterThanYouThinkYouAre: The Ice King constantly encourages her to voice her feelings and break up with the Party God as she wishes to do. At the end of the episode, he also says that she was an inspiration to him as well.

[[folder:The Water Nymphs]]

[[ExactlyWhatItSaysOnTheTin Three water nymphs]] who can be found hanging out in any body of water. They’re very friendly, but terrible at telling jokes.

-->Voiced by Creator/HyndenWalch, Niki Yang, and Katie Crown

* {{Adorkable}}: They may be hot girls in bikini, but that doesn’t stop them from being endearingly awkward
* {{Malaproper}}: They try to make a lot of jokes, but they never come out quite right
-->'''Nymph:''' If you can’t take the heat, get off the kitchen! Heh heh…uh, wait
* WalkingSwimsuitScene: They’re always wearing bikinis.

-->Voiced by Mark Proksch

A Lumpy Space Person who becomes LSP's boyfriend. [[spoiler:Ends up being teleported to an unknown dimension because of LSP recklessly sticking him in Bubblegum's time machine.]]

* [[SheIsAllGrownUp He Is All Grown Up]]: LSP used to call him "Ugly Johnnie" back in high school, but finds him attractive as an adult.
* [[SheCleansUpNicely He Cleans Up Nicely]]: Once he straightens up, he's apparently good-looking. By Lumpy standards.
* NiceGuy: He's a very decent person.

[[folder:Phlannel Boxingday]]
-->Voiced by Creed Bratton

A monster hunter who rides around a cloud in the sky. [[spoiler:He rescues Lemonhope from the desert and later inspires him to free the Lemon Children. Might be a bubblegum man, and implied to have a connection to Princess Bubblegum, with the [[ThemeInitials same initials]], an instance of TechnoBabble and fluency in German, and being bound by the same pacts and treaties that prevent Bubblegum from interfering with Castle Lemongrab. It's also very heavily implied that he is actually Bubblegum in disguise.]]

* CoolOldGuy: Flies around in a cloud-cart, killing treasure-eating monsters for their treasure and harvesting black diamonds for love potions.
* {{Foil}}: To Princess Bubblegum. She raises Lemonhope under the strict belief that he is required to free the lemon people and take over as ruler while Phlannel encourages him to do what he wants and live as a free spirit.
* OrderVersusChaos: He offers to Lemonhope the life of a chaotic free spirit in contrast to Princess Bubblegum's forcing him to become a martyr for his people.
* RedOniBlueOni: A passionate wanderer who values freedom above all else compared to the strict and pragmatic Princess Bubblegum who believes the safety of the people outweighs the happiness of the people.
* ThemeInitials: Compare "Phlannel Boxingday" with "Princess Bubblegum".

[[folder:Peace Master]]
A man who hunts monsters and is very paranoid about dark magic.

-> Voiced by: Creator/RainnWilson

* ArchEnemy: To Peppermint Butler.
* ButtMonkey: When it comes to his own children, he really has it rough. Taken to [[DudeNotFunny unfunny]] [[HumiliationConga levels]] once he [[spoiler: loses to Peppermint Butler, and is still being hunted as a felon by Princess Bubblegum]]
* CoolHat: Just look at that thing! It's even a...
* BagOfHolding: His hat is a portal to a flesh-destroying void dimension. It very nearly gets rid of Peppermint Butler
* OverprotectiveDad: He is very concerned about his childrens fascination with magic, blaming said fascination on his paranoia of dark magic.

[[folder:Chips and Ice Cream]]
-->Voiced by Kate Micucci (Chips) and Creator/RikiLindhome (Ice Cream)
Two imps who possessed the head of Morty Rogers, and are part of his puppet show.
* {{Curse}}: They possess the ears of those cursed. The only known way to undo the curse is to pass it on via moonlight ritual in the presence of the intended target.
* CurseEscapeClause: Intercepting the imps while in the transportation phase of the ritual and capturing them in a container, then setting them free.
* HumbleGoal: As hinted by the play and revealed in the end, to be free and encounter a bird.
* IJustWantToBeFree: They both want to roam free.
* PokemonSpeak: They communicate purely via intonation, only being able to say their own names.

[[folder:Blank-Eyed Girls]]
A group of mysterious children with black eyes.
* CreepyChild: Based on the Black-Eyed Children urban legend.
* MustBeInvited: Starchy claims they have to be, but he turns out to be wrong (again).
* StarfishAliens: [[spoiler: They turn out to be star-shaped ghost...things that dissolve into dandelion seeds. Yeah.]]
* TheVoiceless: They never utter a word.