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Minor Characters of ''WesternAnimation/AdventureTime''


[[folder:Susan Strong]]
A member of an underground dwelling group of humans. [[spoiler: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.]]

-->Voiced by: Jackie Buscarino
%%* DO NOT ADD Amazonian Beauty. This character is simply muscular. She is not portrayed as attractive.
* AmbiguouslyHuman: [[spoiler:Turns out she is, although she may also be...]]
** [[spoiler:{{Cyborg}}:]] Implied by [[spoiler:the strange implant seen on her head]].
* {{Badass}}: That muscular build isn't just for looks.
* 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.
* 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.
* 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 may also be a cyborg.]]
* 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.
* 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".

[[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. [[spoiler:After spending most of the series being possessed by The Lich, he was finally released when The Lich chose to BodySurf into Billy.]]

-->Voiced by: Pendleton Ward
* [[spoiler:ChekhovsGunman]]
* [[spoiler:DemonicPossession]]
* 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.

A tiny cat-like assassin.

->Voiced by: Kyla Rae Kowalewski
* AxCrazy: She is pretty homicidal.
* BadassAdorable: Don't let her size fool you; she's quite deadly.
* BodyHorror: She's small enough to inflict it by herself.
* CatsAreMean: Given that she's an assassin, she qualifies.
* CherryTapping: Can't do much more than this, when she fights with her knife.
** DeathOfAThousandCuts
** UnorthodoxSheathing
* CuteIsEvil: She's rather ruthless for someone so small.
* EyeScream: One of the few ways she could do damage in a straight fight.
* FanArt: How she started out.
* KillerRabbit: Hard to believe that this little critter is a coldblooded assassin.
* MasterPoisoner: That fact that she was able to poison the much larger Jake probably qualifies her for this.
* ManipulativeBastard: Forces Jake into killing Wildberry Princess for her under pain of death.
* [[spoiler:NotQuiteDead]]
* OrificeInvasion: Again, small enough to do it herself.
* 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: Almost. She's still an apprentice.

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.
* [[spoiler:EyeScream: 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.
** [[spoiler:SquashedFlat]]: [[spoiler:At the end of his introduction episode.]]
* GroinAttack: Also gets one of these.
* 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. 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:The Lemongrab Earldom]]
!!Lemongrab 2
Lemongrab's clone. Created by Princess Bubblegum for the purpose of giving Lemongrab a companion.

-->Voiced by: Justin Roiland
* [[spoiler: 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.
* [[spoiler: DefectorFromDecadence: 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}}[=/=]JerkWithAHeartOfGold: 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. [[spoiler: The "jerk" part seems nonexistent by the time of "Too Old", as he's nothing but nice and generous throughout the entire episode.]]
* [[spoiler: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 Only Sane Lemon]]: 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 Only Sane Lemon]] 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.
* [[spoiler: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}}
* [[spoiler: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]].
* [[spoiler:HeroicSacrifice]]: To save his family and the Candy People.
* [[spoiler: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.
* 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.
* [[spoiler: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.
* ADayInTheLimelight: Has his own two-part episode.
* DarkAndTroubledPast
* {{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 Only Sane Lemon]]: 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.

[[caption-width:209:Na na na na nasty! Nasty jazz!]]
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. [[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.]]

-->Voiced by: Kumail Nanjiani

* {{Adorkable}}: He's an extremely awkward, exceedingly nice guy.
* [[spoiler: BackFromTheDead: 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.]]
* 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.
* 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.
* 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.
* [[spoiler: DidntThinkThisThrough: 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''.]]
* [[spoiler:HeroicSacrifice: He allows Finn and Jake to wake up his human form, thus destroying his Wishmaster form.]]
** [[spoiler:SenselessSacrifice[=/=]StupidSacrifice: 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.]]
* [[spoiler:FatalFlaw: 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 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.
* NiceGuy: Really nice. He seems like an all around great guy.
* NonstandardCharacterDesign:
** PaperPeople[=/=]LivingShadow: He basically looks like a moving picture of a person on the floor and ceiling.
** Or something from YumeNikki... In fact his human form looks like Dave Specter with a beard.
* [[spoiler:OhCrap: 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.]]
* RealityWarper: He grants wishes that can alter the course of history.
* 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.
* [[spoiler: {{Tulpa}}: He is an entity born from the dreams of an elderly man.]]

[[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 qualifies, as she accompanies her husband on his monster-hunting expeditions. She seems to favor a crossbow and shuriken.
** PregnantBadass: Although her pregnancy prevents her from being as deadly as usual, she manages to defeat the monster who bit Joshua by herself.
* BadAss: Joshua routinely defeats powerful demons. Margaret herself is no slouch and loves fighting monsters with her husband.
** 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: 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:MisterSeahorse]]: [[spoiler:Joshua is the one who gave birth to Jake, who popped out of his head after he got bitten by a monster.]]
* 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.
* GoodScarsEvilScars: The reason why Joshua always wears a fedora is to hide a scar he got from [[spoiler:giving birth to Jake through his head]].
* MotorMouth: Joshua tends to talk like this.
* {{Posthumous Character}}s: Both are dead by the time of the first episode, but they appear in flashbacks.
* TrulySingleParent: While Jermaine was created the "normal" way, Jake himself sprouted from Joshua's head, a la [[GreekMythology Athena]].
* WouldHurtAChild: DoubleSubverted by Margaret: Upon realizing 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.

[[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: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?]]" ]]
A secondary character, 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.
* 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.

!! 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.]]
* [[spoiler:WrongGenreSavvy: When building his new body, he failed to realize a major flaw: leaving the heart exposed.]]

[[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 (he ''does'' care for her, but not in a healthy way).
** FauxAffablyEvil: Like Marceline, he's a playful troll. Unlike Marceline, he makes good on his threats and then some.
* 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, while dressed in a snappy suit and tie.
* CardCarryingVillain: He's described himself as "completely evil" with no shame.
* ChaoticEvil: Invoked. He ''grew up'' with it.
* DoesThisRemindYouOfAnything: In his OneWingedAngel form, his face is large and round, with a [[VaginaDentata vertical slit for a mouth]].
* [[EmbarrassingFirstName Embarrassing Real Name]]: 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.
* [[EveryoneCallsHimBarkeep Everyone Calls Him Marceline's Dad]] Until "Return to the Nightosphere"
* 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[=/=]EldritchAbomination: 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.
* 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).
* WellDoneDadGuy: Cares a lot for Marceline's approval, even though he tends to go about it all wrong.
* YourSoulIsMine: His MO.

[[folder:The Flame Kingdom]]
[[caption-width:100: "The Ice King is schemin' to nabs a princess today! I swears it!"]]
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: 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: KeithDavid
* {{Abusive Parent|s}}: 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.
* 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.
* EvilTropes: He, and all other people in the Fire Kingdom, are evil:
** AffablyEvil: He's quite polite for an EvilOverlord.
** 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.
* [[spoiler:KlingonPromotion: 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.
* [[spoiler:SealedEvilInACan: Usurped by his daughter and put inside the same lantern he put Flame Princess in.]]


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

->Voiced by: Pendleton Ward
* [[spoiler:BalancingDeathsBooks]]
* 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.
* [[spoiler:HeroicSacrifice: 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), Tom Kenny (Gob), Tom Gammill (Glob), Miguel Ferrer (Grod)
* [[spoiler:HeroicSacrifice: Dies protecting the people of Mars from an incoming 'catalyst comet', which turns out to be Martin's spaceship]]
* [[spoiler:KilledOffForReal]]
* PhysicalGod

[[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.
* 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".

!!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.

!!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.
* NowOrNeverKiss: When Desert Princess's sand clones are told to throw themselves in the giant hole they say they want a kiss from Finn first.
** LastKiss: 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:Candy People]]
!! Starchie
[[caption-width:143:"I can't help it. Flesh is delicious!"]]
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: 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".]]
* 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.
* 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.

!! 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: The 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.

!! 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.
* InItsHourOfNeed: They only seem to get up when something ''really'' bad is out for the Candy Kingdom, but otherwise leave everything to the Banana Guards.
** There's an explanation for why this might be in "The Vault" - [[spoiler:not long after they were born, they overreacted and attacked Shoko with far more force than necessary, directly leading to her death]] - but it's unconfirmed.
* 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.
* 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.
* {{Physical God}}dess: 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."
* 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.
* {{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.

* {{Badass}}: The first thing he does is pounce on Goliad and kick her across the roof, through a small tower. The second thing is to engage her in an eternal psychic battle, sacrificing himself to save everyone else.
* 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

-> Voiced by: Donald Faison

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.

* AllOfTheOtherReindeer: Didn't really fit in with the other orphans.
* [[spoiler:DrivenToSuicide: 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 independantly, all have names like Chipolina and Chipler.


-> Voiced By: Johnny Pemberton

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.

* 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

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.]]

* ADayInTheLimelight: "Root Beer Guy" is his.
* [[spoiler:DaChief:At the end of the episode]].
* HappilyMarried
* HardboiledDetective: Wants to be this
* [[spoiler:KilledOffForReal: Dies while helping to seal Derwin in "Something Big". While some of the candy people are restored after Derwin is killed, Root Beer Guy is the only one still dead.]]
* JumpedAtTheCall
* OnlySaneMan: [[spoiler:Becomes this to the Candy Kingdom police due to being made head of the Banana Guards.]]


-> 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]].
* [[spoiler: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
* [[spoiler: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]].
* SlidingScaleOfRobotIntelligence: Probably a Grade 3, but he makes up for it as a BadassNormal.
* TechnicalPacifist / MartialPacifist: [[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...
** 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}}]].

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

* CloudCuckooLander
* CloningBlues

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

Voiced by: EmoPhillips

* [[SuddenlyFluentInGibberish Fluent In Gibberish]]: Peppers his sentences with nonsensical words. For example.
-->'''Cuber:''' I'll see you crimpy glimmers on triode flimpin' the diode.
* GreekChorus: Acts as one for his Graybles.
* NoFourthWall: He routinely speaks directly to the viewers.
* TricksterMentor: Sorta acts like this to the viewers because some of his Graybles are designed to mislead the audience.

[[folder:James Baxter]]
A talented horse named James Baxter [[PokemonSpeak which is all that he can say]]. He spreads joy throughout the land.

Voiced by: 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 guest animator in his episode "James Baxter the Horse", and he also provides the voice.
* FunPersonified: He spends his time performing for other people (read: running around balancing on top of an inflatable ball), taking their worries away.
* 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: 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:Jake Jr.]]

One of Jake and Lady Rainicorn's puppies. [[spoiler:She has recently become a thief like her father was in his youth.]]

->Voiced by: Kristen Schaal

* 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.
* 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.
* [[spoiler:[[WhatTheHellHero What The Funky Fresh, Honey?]]: Jake gives her one after she manipulated him to pull a heist.]]

[[folder:The MO Factory]]
!!Moseph "Moe" Maestro Giovanni
The creator of all [=MOs=]. Created BMO as the companion of the son he would never have before sending him out into the world to "Be more."

->Voiced by: Chuck [=McCann=]
* CoolOldGuy: We're talking about the guy who built BMO!
* 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}}.

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: Has shades of it if the ending of her introduction episode is any indication. 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.'']]
* BlowYouAway: Well she is the ''Sky Witch'' for a reason, though doesn't seem to utilize it often.
* ChekhovsGunman: She was the witch that Ash mentioned selling Hambo to.
* EldritchLocation: Seems to reside in one.
* EmotionEater: Mentions in "Something Big" that 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 need Bubblegum for her plans. He doesn't listen however and nearly killed Peebo if Finn hadn't flown in for the save. Before that though, Maja actually looked quite horrified he was about to go through with it.
* EvilIsHammy: Big time.
* {{Foreshadowing}}: Ash mentions her in "Memory of a Memory'' (not by name otherwise Marcie would've found her much earlier). The fact she has some plan to utilize the sentimentality value of the items she had an interest in seems to imply she won't be a one-shot character.
* 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.
* 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!"]]
* MindScrew: Maja and her Crabbit familiar pull these on Marcie as she and Bubblegum make their way to Maja's house.
* NotQuiteDead: Gets knocked into a tree after being blasted by the Tandem War Elephant which knocks her into a coma. Ironiclly said war elephant is the one who helps her later.
* NonIndicativeName: Her title as the "Sky Witch" would indicate she has wind-based powers or something related to it, but she doesn't.
** Subverted in her second appearance, she manages to knock Princess Bubblegum and her Marrow out of the air using wind. It's also how she's able to fly as well.
* PrimAndProperBun: Oddly enough.
* ShockAndAwe: Was abusing her familiar with electricity.
** PsychoElectro: For little to no reason.
* VoiceOfTheLegion: Constantly talks in reverberating, demonic like tone.
* WickedWitch: Is she ever, and she did it all to get a shirt.

[[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.

[[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. A human version of Choose Goose, named "Choose Bruce", appears in the alternate "Farmworld" universe.

->Voiced by Creator/JeffBennett

* 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:The Ancient Sleeping Magi of Life Giving]]
-->Voiced by Creator/DanaSnyder

* AnimateInanimateObject: He gives any inanimate objects life.
* DaddyIssues
* MommasBoy
* PsychoactivePowers

[[spoiler: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, [[spoiler: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 / {{Artificial Limb|s}}: Her parents trade her right arm for a laptop, and she's taught that it's a worthy trade. Bubblegum disagrees and 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 / [[spoiler:GhostlyGoals]]: The reason why [[spoiler:she haunts Finn's dreams]].
* 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[=/=]MythologyGag: [[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]].
* [[spoiler:OurGhostsAreDifferent: 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.
* [[spoiler:PastLifeMemories]]: [[spoiler:Most of what's known about her is from Finn's mental "Vault"]].
* [[spoiler:{{Reincarnation}}]]: [[spoiler:The most recent past life of Finn]].

-->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.]]
* [[spoiler:KilledOffForReal: 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
* [[spoiler:Really700YearsOld: 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.''

[[folder: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.
* EnergyBeing: It is an owl that is made out of yellowish cosmic energy.
* 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.
* VocalDissonance: One of the most ancient and powerful entities of the series, but it has a youthful, Southern drawl.

[[folder:Finn Mertens/[[spoiler:Ice King]]]]
Finn Mertens is Finn's counterpart in the "Farmworld" universe.
* AlternateSelf: Of Finn the Human. Duh.
* AntiHero: ClassicalAntiHero.
* [[spoiler:AntiVillain: As the new Ice King]].
* AnIcePerson: [[spoiler:After putting on the Ice King's crown]].
* ArtificialLimbs: Has a crude mechanical right arm.
* DoesNotLikeShoes: Never seen wearing shoes. Possibly also an example of BarefootPoverty.
* {{Gonk}}: Lampshaded by Jake:
-->'''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.
* [[spoiler:WithGreatPowerComesGreatInsanity: As Ice King.]]

[[folder:King of Ooo]]
Claims to be the king of Ooo. Legally able to perform marriages.

* AuthorityInNameOnly: He doesn't seem to wield any real power at all.
* 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''.
* {{Cult}}: It's implied that he runs one.
* [[EveryoneCallsHimBarkeep Everyone Calls Him the King of Ooo]]
* GodEmperor: Claims that the ''sun'' belongs to him.
* 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.
* WouldHurtAChild: Shows no hesitation in "taking care" of Sweet P when he finds out his plan.

[[folder:Betty Grof]]
-->Voiced by Lena Dunham

The fiancée of Simon Petrikov [[spoiler:aka the Ice King]]. She lived on Earth before the apocalypse [[spoiler:until TimeTravel brought her to the present day Land of Ooo.]]

* [[spoiler:ActionGirl]]
* AscendedExtra
* [[spoiler:ButNowIMustGo: After restoring the powers of the ice crown to keep Simon alive, she decides to leave the Ice King until she is able to find a way to safely free him.]]
* [[spoiler:DecompositeCharacter: A lot of her moves and mannerisms are the same as Fionna's. [[FridgeBrilliance Perhaps that's why the Ice King wanted Fionna to be real so much]]... not that he realized it.]]
* [[spoiler:{{Determinator}}: A trait she shares with her fiancée.]]
* [[spoiler:FieryRedhead]]
* [[spoiler:FishOutOfTemporalWater: Though she seems to take it well.]]
* HotScientist: She co-authored a book about space time portals. She's pretty adorable, too.
* TheLostLenore: [[spoiler:To Simon, although as the Ice King he's not really aware of it. It's ultimately subverted when Simon opens a PortalToThePast, intending to say goodbye to Betty... and she ''jumps through it'' to enter the present, meaning that she never really died after all.]]
* {{Meganekko}}
* [[spoiler:NotQuiteDead: It was heavily implied she died early in the Mushroom War, hence why Simon never saw her again. Turns out it was because she jumped through a time portal, traveling to the future]].
* OfficialCouple: [[spoiler:With Simon...kind of. It's complicated]].
* PosthumousCharacter: [[spoiler:Subverted.]]
* [[spoiler:StableTimeLoop: She left Simon when he became Ice King because the Simon from the future was saying good bye to her through a PortalToThePast; thus she jumped through it to be with him there.]]
* StarCrossedLovers: [[spoiler:Implied in "Holly Jolly Secrets", with Simon having come to believe that she met her end in the Great Mushroom War. In "Betty", it turns out she didn't die after all... and she makes it her goal to save Simon from his fate.]]
* [[spoiler:UndyingLoyalty: To Simon. We're initially lead to believe she left him after the crown started taking control of him. Turns out she slipped through a time portal to the current timeline, and has never faltered in her love for him.]]
* [[spoiler:{{Unfazed Every|man}}woman: After escaping to the future she doesn't appear visibly fazed by any of strange things around her. Kind of justified, as she had much more important things on her mind at that moment. But then given the title of the book she and Simon co-wrote, "Mystic Rituals And Their Space Time Applications", she was likely never "normal."]]
* WalkingSpoiler: Her role in [[spoiler:the Ice King's origins]] makes her this. [[spoiler:Her arrival in Ooo via time travel makes her all the more important.]]
* [[spoiler:WalkingTheEarth: After Simon is forced to wear the crown again to save his life. She begins traveling Ooo in the hopes of finding a way to cure him.]]

-->Voiced by Maurice [=LaMarche=]

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.
* BishonenLine: His regular form is a massive face made out of moss while his "true" form is a beautiful, androgynous humanoid.
* [[spoiler: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.

-->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.]]

[[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.]]

* 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: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: [[spoiler: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.
* CoolSword
* 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: Originally, but Finn manages to keep it under his control.
* LivingWeapon: Definitely alive, and possessing some level of sapience.
* LostForever: After Breezie seemingly pollinates it, it grows into a tree around Finn's stump and restores his arm. The remains fall on Breezie and . . . that looks to be the end of it.
* 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.

-->Voice 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.
* 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:Martin Mertens]]
-->Voiced by: Stephen Root

Finn's father, trapped on the Citadel for unexplained reasons. He's freed during ''Escape from the Citadel''.

* ArchnemesisDad: He's the first person that Finn wanted {{Revenge}} against and got away with it. In result, [[ThePowerOfHate Finn's hatred for him burns so deep]] that Finn can easily sing [[LyricalDissonance a sweet, calming lullaby]] about [[IWillTearYourArmsOff violently tearing Martin's arm off]] without batting an eye.
* AmbiguouslyEvil: As noted in the mysterious past entry below, Martin's true nature is ambiguous as to whether he's a truly heinous criminal or just someone who got sent there under false pretenses. Even his distant behavior towards his own son Finn is arguably justified under the pretense of him being locked away for so long that he's become aloof and out of touch with other people; or given his mysterious past Martin may be trying to hide something he's ashamed of from his son Finn or trying to protect him by distancing himself. We honestly don't really know enough about the guy at this point to fully classify the man.
* BewareTheSillyOnes: Implied. He's incredibly cheery in his one appearance, and seems incredibly affable, and might even be likable if not for his actions during said first appearance... until you consider that he's in a cosmic prison full of incredible monsters up to and including The Lich, and a group of said monsters instantly accept him as their leader with no argument. And of those criminals, he was the ''only'' one not to be placed under the Lich's control. Whatever he is or however he got there, there's definitely more to him than it seems.
* BrokenPedestal: The apple falls far from the tree, to say the least.
* ConsummateLiar: He lies constantly without breaking a sweat.
* DirtyCoward: His first instinct is always to save his own (worthless) skin.
* DisappearedDad: He abandoned Finn when he was a baby. In the Citadel he refuses to give him any real explanation, then abandons him again. He seems to be actively avoiding him for some reason.
* DissonantSerenity: Has a rather cheery disposition despite apparently being one of the most dangerous criminals in the universe. He talks in a very casual tone as he is being pursued by the prison guards at the Citadel, shows the barest minimum of pain at a serious injury dealt to his leg, walks up to bad guys (and becomes their new leader) and exchanges pleasantries with them like it was nothing, and gives two notable winks that disarm the people they're aimed at and get them to follow his orders.
* EvilCounterpart: Basically the Anti-Finn. While Finn is decked out in all blue, he wears all red. While Finn has a giant mane of hair, Martin is bald and bearded. While Finn is selfless and heroic, Martin self-absorbed and manipulative, etc.
* FauxAffablyEvil: Despite his cheery disposition, his true motivations are unknown, he's apparently a cosmic criminal, and he'll screw over someone who just helped him out without a second thought.
* HateSink: Those who were expecting Finn's dad to be a cool guy will be disappointed. And unlike some of the show's other most despicable people, Martin doesn't even fall into EvilIsCool as much as he's just a fantastical version of the self-absorbed deadbeat dad.
* ItsAllAboutMe[=/=]NeverMyFault: When Finn finally asks why he was left in the forest, Martin gets incredibly defensive and suggests that "maybe ''you'' abandoned ''me'', did you ever think of that?!" -- Finn was a toddler, and this seems to prove to him that Martin might not be such a good guy after all.
* JerkAss: He cares only for himself and his own immediate benefit, and doesn't even evince much awareness that he could be expected to care about his son or the other people he manipulates.
** JerkWithAHeartOfJerk: Every time it seems he might be revealing a positive side to himself, it turns out to be some lie or trick to further benefit himself. He really is that much of a selfish asshole.
* LackOfEmpathy: In "The Visitor", Martin tricks a village of tiny people into helping him (they actually aren't fooled and are just doing him a favor), nonchalantly talking about how taking advantages of them is driving them to starvation.
* ManChild: Finn thinks of him as a child stuck in an adult's body.
* MajorInjuryUnderreaction: Martin gets the skin on his right leg sheered off by a laser, all the way down to the bone. Sure enough, he treats it like an injury that needs to be dealt with, but he shows the barest minimum reaction to it; at best saying "this really stings", rather than screaming bloody murder at how painful it is like most people would. Even taking into account the Guardian Blood, that he gets Finn to apply to his wounded leg, restoring the flesh to his bone, Martin's casual reaction to the wound is rather astounding.
* MysteriousPast: Very. For starters as one of the last (pure bred, as many of the current inhabitants are implied to be the mutated descendants of humans) humans on Earth what group of survivors did he come from? Is that group still around? What kind of life did he lead prior to having Finn? Who was the mother of Finn and how did he meet her? Was he missing because he was sealed away, or did he abandon him before that? Is he truly a cosmic criminal or was it some kind of frameup or misunderstanding?
** Additionally, how exactly did Billy know that Martin was Finn's dad? And how did he know that Martin was imprisoned on the Citadel?
* PlanetSpaceship: Currently piloting the Comet, which crashes into the Earth every 1000 years.
* ScrewThisImOuttaHere: The moment he sees the Lich at the Citadel, he bails before things get real.
* TheSociopath: Martin shows some extremely sociopathic behavior: he has a constant false charm which his actions constantly betray. He lies, manipulates, and otherwise uses people to his own benefit without any concern or empathy toward them. Through it all he still tries to justify his actions with the most trivial excuses.
* UngratefulBastard: He uses Finn to heal his leg and then completely ditches him for the Citadel inmates.
* UnreliableNarrator: What little details he's given about how he got separated from Finn should be taken with a grain of salt. He claims Finn was born on a banana boat and that he himself made some kind of choice to leave earth while they were on it.
* WalkingSpoiler: He's Finn's ''dad,'' for crying out loud.

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

An ancient two-headed psychic war elephant.

* BadAss: [[spoiler:Is the only thing that can face Darren the giant tree monster in a fight.]]
* PutOnABus: After his first appearance in "The Limit", he doesn't appear again until "Furniture & Meat".

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

* 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.

Millions of years ago, Earth was protected by four elemental guardians representing Ice, Flame, Candy and Slime. The strongest in their number was 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.
* [[spoiler:HeelRealization: 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.]]
* IronicName: "Evergreen" is the kind of name you'd expect someone with a GreenThumb to have, not ice powers.
** MeaningfulName: Evergreen trees thrive in cold, northern climates.
* 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.

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.

* [[spoiler:AnIcePerson: Becomes the original Ice King after making his wish on the crown]]
* HeroWorshipper / UndyingLoyalty: 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]].
* [[spoiler:MadnessMantra]]: After [[spoiler:wishing to become more like Evergreen]]. Gunther, no! Gunther, no! Gunther, no! Gunther, no...
* OneSteveLimit
* {{Reincarnation}}: Another of Finn's past lives, with Nina being his Jake.
* UpliftedAnimal: Gained intelligence and speech when Evergreen mutated him in the egg.
* [[spoiler:WithGreatPowerComesGreatInsanity: 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:Breezy the Bee]]
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.
* 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.

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 {{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.

[[folder:Rat King]]
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 {{Kirby}}.
* SwarmOfRats: His second form, which also means that He's NighInvulnerable to blows to his body.
* 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.

[[folder:Rat Wizard]]
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.

[[folder: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.

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

* TheStoic
* InstantAwesomeJustAddNinja: 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.