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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. After spending most of the series being possessed by The Lich, he was finally released when The Lich chose to Body Surf into Billy.
- Voiced by: Pendleton Ward
- Chekhov's Gunman
- Demonic Possession
- Evil Sounds Deep: At the end of "In Your Footsteps" the possessed snails speaks in a deep voice.
- Freeze-Frame Bonus
- Nice Job Breaking It, Hero: Releasing the Lich.
- Once an Episode: Because of this, he's actually appeared in more episodes than Princess Bubblegum or the Ice King.
- Orwellian Retcon: 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.
- Unwitting Instigator of Doom: 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 prison of amber and freeing him.
- Unwitting Pawn: See above.
StarchieAn 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.
- Butt Monkey: Bad things tend to happen to him, like getting thrown in the dungeon, attacked by zombies, or getting Freezer Burn Flu.
- Conspiracy Theorist: He takes calls from them on his radio show.
- The Cuckoolander Was Right: Turns out he was right about PB being replaced by a lizard imposter in "We Fixed A Truck".
- Faking the Dead: Faked his death and ran away to get away from Princess Bubblegum's intrusive surveillance. She then had him cloned.
- Felony Misdemeanor: 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.
- Gone Horribly Right: 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.
- I'm a Humanitarian: He can't help it. Flesh is delicious.
- Living Polyhedron: As you'd expect from a living tapioca pearl.
- Nice Hat: One of his distinguishing features.
- Third-Person Person: Always seems to refer to himself in the third person:[Upon being sent to the dungeon] If Starchie lives that long.
- Took a Level in Jerkass: While original Starchie was a kindly old man, his clone is a jerk.
Mr. CupcakeThe strongman of the Candy Kingdom, Mr. Cupcake is, as his name suggests, a giant cupcake.
- Voiced by: Dee Bradley Baker
- Badass Mustache: He sports a handlebar one.
- Feel No Pain: 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.
- Naked People Are Funny: In "Slumber Party Panic", while playing Truth or Dare, Chocoberry dares him to take off his wrapper.
- Sesquipedalian Loquaciousness: 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!"
- World's Strongest Man: He's supposedly the strongest of all the candy people.
ManfriedA talking pinata, Manfried serves as a PA for the Candy Kingdom.
- Voiced by: Maria Bamford
- Bearer of Bad News: Usually this for Princess Bubblegum
- Big "WHAT?!": 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.
- Cool Horse: Or in this case, a cool pinata.
Banana GuardThe Royal Guard of the Candy Kingdom, serving as both police and bodyguards to Princess Bubblegum.
- Voiced by: Pendleton Ward
- Blade on a Stick: They carry spears.
- Color-Coded for Your Convenience: The Banana Guards of the past that appear in "The Vault" are color green.
- Human Shield: They literally use themselves as barricades in "Princess Cookie". Though maybe it's more "Banana guard" shield.
- Nothing Exciting Ever Happens Here: 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".
- Police Are Useless: They rarely manage to acomplish their job protecting the kingdom. Princess Bubblegum is so dissapointed by it that she assigns Root Beer Guy in charge of the Banana Guard.
- Praetorian Guard: For Princess Bubblegum.
- You Are Number 6: In "The Thin Yellow Line", Finn meets one called Banana Guard 16, implying that the others are numbered as well.
Gumball GuardiansA 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 The Lich going on a rampage in the city. They are also the Guardians of the Royal Promise, punishing those who break Royal Promises. 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: Tom Kenny & Steve Little
- Felony Misdemeanor: When Princess Bubblegum pleads for Finn, they decide to give him a less hot trial: Math questions.
- Kill It with Fire: Their initial punishment for breaking a Royal Promise is to subject the promise-breaker to Trial by Fire.
- Time Stands Still: 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.
- Wave Motion Gun: Have a rather... impressive weapon that has only been seen once while being piloted by Finn's mind-control hat.
- The Worf Effect: If anything is strong or evil enough to get their attention (Like The Lich, or Gunther), they get beaten fairly quickly.
- Your Head Asplode: They suffer this when Finn gets the math question right.
Royal Tart ToterThe 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: Stephen Root
- Ax-Crazy: A non-villanous (or evil) example.
- Badass Mustache: Subverted, it was once badass, but then it got torn.
- MacGuffin Guardian: His job was to guard the Royal Tarts in their journey from the Candy Kingdom to the Sacred Backrubbing Ceremony.
- The Mentally Disturbed
- Mind Screw: 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 winand it can—then I'll still be here tomorrow to high-five you yesterday, my friend. Peace.
- Serious Business: 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.
- A God Am I: Not really a god, but the sentiment is there.
- Ambiguous Innocence: Sure, her endgame is evil, but there doesn't seem to be a smidgen of malice in her. Which only makes her creepier.
- Body Horror: Her third eye, which seems to unnaturally pop out of her forehead.
- Cain and Abel: Cain to Stormo's Abel.
- Complete Immortality: Implied by Princess Bubblegum, but we only know for sure she's The Ageless.
- Control Freak: After seeing how Jake treated the Candy children, she planned on treating the whole Candy Kingdom this way too.
- Corrupt the Cutie: Although it's implied that Goliad was unnaturally susceptible to it. Still, Jake was probably the worst person to leave in charge of her.
- Creepy Child: With an uncanny child-like voice coming from a huge monster and unstable psychic powers, she comes off as this.
- Gone Horribly Wrong: 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.
- Harmful to Minors: Some of the first things she sees are Jake getting violated by an entire preschool class, and his retribution.
- In the Blood: Probably inherited Bubblegum's single-mindedness.
- Lack of Empathy: She's a very young child, after all.
- Mind Rape: Tries it on Finn, who is able to hold his own for an admirable amount of time, before Stormo appears.
- Orifice Invasion: 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.
- People Puppets: Her main power is mind control.
- Physical Goddess: Has immense Psychic Powers 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.
- Psychic Powers: She can read people's minds and make them levitate.
- Sealed Evil in a Duel: Bubblegum states that she and Stormo are forever locked in a psychic stalemate.
- Sibling Yin-Yang To Stormo, and also to Lemongrab.
- Social Darwinist: "The weak bow to the strong, and such is harmony."
- The Evils of Free Will: 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.
- Unexplained Accent: Again as with Tree Trunks, her voice actor's British accent deviates from Ooo/Standard American for no in-universe reason.
- We Can Rule Together: She tries fervently to win Stormo over, but he isn't having it.
- With Great Power Comes Great Insanity: Due to Jake's improper tutoring she decides to take over the Candy Kingdom .
StormoYet 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.
- Big Damn Heroes: See Dynamic Entry.
- Body Horror: The third eye, which works the same as Goliad's.
- Cain and Abel: Abel to Goliad's Cain.
- Dynamic Entry: He rushes in just in time to save Finn and the Candy Kingdom from Goliad.
- Good Counterpart: Based on Finn's DNA rather than Bubblegum's.
- Heroic Sacrifice: Locks himself and Goliad in an eternally stale-mated psychic battle. Truly impressive in that he doesn't even hesitate to do so.
- In the Blood: Is every bit as noble and heroic as Finn. And also has his blonde hair.
- Psychic Powers: With the power of his third eye, he can manipulate objects and other beings, just like Goliad.
- Sibling Yin-Yang: It's unclear to what extent they are siblings, but they're as different as night and day.
- The addition of Finn's DNA into Stormo's primordial goop is the only noted difference between them.
- Telepathy: See Psychic Powers.
- The Unintelligible: Speaks entirely in birdlike screeching sounds, though Goliad seems to understand what he's saying.
Princess CookieA 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 he's really a dude named Baby-Snaps. Eventually grew up and held a convenience store full of candy people hostage. Currently resides in a candy people mental institute.
Voiced by: Donald Faison
- All of the Other Reindeer: Didn't really fit in with the other orphans.
- Driven to Suicide: But since he's a cookie, he just cracked apart. He got better, though.
- Gender-Blender Name: As mentioned above.
- Not Evil, Just Misunderstood: 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.
- Theme Naming: His chips, which can separate from him and act independently, all have names like Chipolina and Chipler.
BracoOne of Princess Bubblegums many suitors, Braco is the the third generation of his family to become a suitor after his father ascended. At the age of twenty one he was the yougest suitor by far, with the oldest being over three-hundred. He looks like a normal human except for his skin color and the crystal like candy on his head. His whole personality revolves around his intense infatuation with Bubblegum.
Voiced By: Johnny Pemberton
- Ambiguously Human: Looks like a normal human except for skin color and sugar crystals in his head.
- Body Horror: Ogdoads spell makes him into a hidious monster, but see below...
- Deal with the Devil: With the shadow creature Ogdoad
- Dogged Nice Guy: Deconstructed. His efforts are expressly against the princess's wishes and bring him nothing but pain.
- Even the Guys Want Him: The effects of Ogdoads spell causes everyone to love him.
- Too Dumb to Live: 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 Ogdoad's offer despite the demons warning.
Root Beer Guy / Dirt Beer GuyA 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. As it turns out, the kidnapping was all staged to test the Banana Guards, who not only horribly failed the case, but had Root Beer Guy handcuffed. As a result, Root Beer Guy was promoted to the head of the Banana Guards.
Voiced by: Jack Pendarvis
- A Day in the Limelight: "Root Beer Guy" is his.
- Came Back Strong: When he is resurrected as Dirt Beer Guy, he gains zombie super strength.
- Da Chief: At the end of the episode.
- Happily Married
- Hardboiled Detective: Wants to be this.
- Heroic Sacrifice: He's killed putting up a dome around Darren and Maja.
- Killed Off for Real: Dies while helping to seal Derwin in "Something Big". While some of the candy people are restored after Darren is killed, Root Beer Guy is the only one still dead.
- Jumped at the Call
- Only Sane Man: Becomes this to the Candy Kingdom police due to being made head of the Banana Guards.
- Our Zombies Are Different: Sort of a zombie; he was revived via a lightning bolt, and assimilated with the soil he was buried beneath.
Voiced by: Rainn WilsonA 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. 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.
- Badass Normal: Acquired his skills through centuries of constant training rather than just his programming.
- In the Hood: When he first fights Finn, as well as after Princess Bubblegum hires him as a secret night watch over the Candy Kingdom.
- Last of His Kind: Bubblegum crushed the rest and attempted to recall him as well.
- Lawyer-Friendly Cameo: He's a gumball machine on a Cartoon Network show who, like the employees of a certain other gumball machine on a Cartoon Network show, says the word "eggscelent".
- Master Swordsman
- Mecha-Mooks: He and the other Rattleballs were basically an army of candy-sized Gumball Guardians.
- Meaningful Name: See those gumballs? The ones where his testicles would normally be? They rattle.
- The Mentor: To Finn.
- Old Master
- Really 700 Years Old: 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.
- Sliding Scale of Robot Intelligence: Probably a Grade 3, but he makes up for it as a Badass Normal.
- Technical Pacifist / Martial Pacifist: 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.
- Three-Laws Compliant: He interprets the First Law loosely (see Technical Pacifist, above), plays the Third Law straight while the rest of his kind walk straight to the crusher, but...
JamesA Candy Person who accompanies Finn, Jake and Bubblegum on a mission
- Voiced by: Andy Merrill
- Chronic Hero Syndrome: He is more than willing to sacrifice himself to save Princess Bubblegum. Even if she's not actually in danger.
- Cloud Cuckoo Lander: His behavior is... strange, to say the least.
- Cloning Blues: Princess Bubblegum clones him every time he dies.
- The Exile: PB makes him leave the Candy Kingdom after the events of "James II." No one will miss him.
- Heroic Sacrifice: He lets himself be killed by the Ooze Monsters so that PB, Finn, and Jake can get away.
- Faking the Dead: He fakes his death twenty-five times to get medals.
- Fusion Dance: All of the clones fuse into one being at the end of "James II".
- Glory Hound: He fakes his death just to collect medals.
- I Just Want to Have Friends: The original reason that he starts faking his death- so that Bubblegum will clone him and he'll have a new friend to hang out with. After that, it just becomes about the medals.
- They Killed Kenny Again: He's died defending Bubblegum at least twenty-five times. Or so it seems.
- What Measure Is a Non-Human?: Bubblegum lets him sacrifice himself rather than let Finn do it, because he's made of candy and can be easily cloned, while Finn can't.
Colonel Candy CornAn retired officer in the Candy Kingdom military. Commands the Banana Guards after Root Beer Guy's death.
- Voiced by: Keith Ferguson
- Badass Mustache
- Colonel Badass: Battles Darren's monster soldiers with a saber.
- Retired Badass: Until "Something Big" forces him out of retirement.
- Da Chief: Of the Banana Guards, after Root Beer Guy's death.
- The Generalissimo: Declares a military dictatorship in the Candy Kingdom when Princess Bubblegum is feared dead.
- May-December Romance: He's looking for one of these, hoping for a "young woman with an old soul".
- Old Soldier
- Tyrant Takes the Helm: Very briefly in "The Pajama War".
CrunchyA candy person.
- Voiced by: Tom Kenny
- Accidental Hero: He kills the Hierophant, an extremely dangerous vampire, by bumping into him.
- Back from the Dead: He explodes in fear in "Something Big", but a title card at the end reveals that he got put back together.
- The Dog Bites Back: He knocks the King of Ooo into a fireplace and melts him when he tires of the King's abuse.
- Hunting the Most Dangerous Game: The King of Ooo hunts him for sport during his reign as princess.
- The Starscream: Under Colonel Candy Corn's brief dictatorship.
- The Usurper: Twice. First from Colonel Candy Corn when Princess Bubblegum briefly disappears, and then from the King of Ooo when the Candy People turn against him.
- Vocal Dissonance: His voice is impressively deep and scratchy given his appearance.
NeddyA candy dragon who lives in the depths of the Candy Kingdom, suckling on the roots of the candy tree and secreting candy juice that the rest of the Candy Kingdom uses for bathing and healing. He's also Princess Bubblegum's brother.
- Voiced by: Andres Salaff
- Ambiguous Disorder: Despite being a huge candy dragon, Neddy is reclusive and has a crippling fear of everyone and anything who isn't his sister Princess Bubblegum. PB is well aware of how different Neddy is from most people:People are built different. We don't need to figure it out, we just need to respect it. Maybe he likes his own company better than I like mine.
- Immortal Immaturity: He's as old as PB, but he's extremely infantile in mentality, and he only takes comfort in suckling on the roots of the candy tree and being with his sister.
- Madwoman in the Attic: Played with; Princess Bubblegum keeps him hidden away not to forcefully keep him away from everyone, but to keep him safe since he's so sensitive and so terrified of everyone and everything. He really just wants to be left alone to suck on the candy tree roots, which lets him provide the Candy Kingdom with precious candy juice.
- Our Dragons Are Different: He's huge and made of gum, for one thing. He also has tiny wings, his eyes are below his mouth, and he secretes precious candy juice by suckling on the roots of the candy tree.
- Powered by a Forsaken Child: The whole kingdom runs on the juices he secretes.
Turtle PrincessThe 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.
- Eyes Always Shut: Her eyes only open a few times.
- Larynx Dissonance: She's voiced by a man, rather like her best friend LSP.
- Single Woman Seeks Good Man: 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.
- Turtle Power: A turtle who's a princess and a head librarian.
Slime PrincessThe Princess of the Slime Kingdom.
- Voiced by: Maria Bamford
- Distressed Damsel: Frequently needs rescuing by Finn and Jake.
- Mole Men: The Slime Kingdom is underground.
- One of the Kids: In "Loyalty to the King", Slime Princess is playing in a sandbox when she meets the "Nice King".
- Princesses Rule: is the ruler of the Slime Kingdom
Ghost Princess (formerly Warrior Princess)A dead Princess who is now a ghost.
- Voiced by: Maria Bamford
- Ascend to a Higher Plane of Existence: In the episode Ghost Princess, after learning how she died.
- Dating Catwoman: 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.
- Distressed Damsel: Like most of the princesses, Ghost Princess largely existed to be rescued before ascending to the 50th Dead World.
- Earn Your Happy Ending: "Ghost Princess" had a very sweet one, which required death and post-mortem trauma from a couple characters, but was rewarded with two lovers ascending to the next plane together.
- Ghost Amnesia: She doesn't remember her former life at first.
- Lady of War: As Warrior Princess.
Breakfast PrincessA princess of the Breakfast Kingdom.
- Voiced by: Grey DeLisle
- Alpha Bitch: Very stuck-up and condescending to LSP.
- Anthropomorphic Food: Made up of breakfast items, including little egg shoes.
- Distressed Damsel: Has gotten pretty used to it."Oh hey Finn, I've got another Ice King situation here."
- Planet of Hats: The Breakfast Kingdom, pretty much.
- Princesses Rule: Her and her sister, Toast Princess, appear to be the sole royalty of The Breakfast Kingdom as of "Princess Day", Breakfast Princess has lost the throne to her younger sister, Strudel Princess.
Wildberry Princess:The princess of the Wildberry Kingdom.
- Voiced by: Maria Bamford
- Anthropomorphic Food: Looks like a berry.
- Berserk Button: 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? Confiscating all of Jake and Finn's gold, melting it down and planning to execute them by pouring it over them.
- Beware the Nice Ones: Dear lord, don't let her timidness fool you. If she perceives herself as insulted, she will not take it well.
- Distressed Damsel:
- 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 Fragile Flower nature.
- In "Jake vs. Me-Mow," Wildberry Princess is the target of an assassin from the Guild of Assassins.
- Planet of Hats: The Wildberry Kingdom: a kingdom where everyone is a berry.
- Princesses Rule: Apparently the only ruler of the Wildberry Kingdom.
- Shrinking Violet: She speaks in a soft voice, and she's rather sensitive and easily prone to tears.
Hot Dog PrincessA princess who rules over the Hot Dog Knights.
- Voiced by: Maria Bamford
- Abhorrent Admirer: 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".
- Cloudcuckoolander's Minder: Instead of the knights protecting their ruler, most of the time it's the other way around.
- Distressed Damsel: She requires saving pretty regularly. Her knights are even worse.
- Princesses Rule: Apparently the only ruler of the Hot Dog Kingdom.
- Visual Pun: 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 PrincessA princess who controls sand. She was found inside a Bag of Holding.
- Art Initiates Life: Desert Princess's specialty is making animated sand sculptures.
- Canon Foreigner: Created for the comic book series.
- Cool Crown: Her crown is made of ice cream, with a cherry on top.
- Dishing Out Dirt: Can create objects from sand and then control them.
- Fusion Dance: The second issue implies that she is actually an amalgamation of various Candy citizens.
- Now or Never Kiss: When Desert Princess's sand clones are told to throw themselves in the giant hole they say they want a kiss from Finn first.
- Last Kiss: After they get their kiss they dissolve into lifelessness without any further objection.
- Princesses Rule: Claims to rule the Desert Kingdom.
Old Lady PrincessA princess that The Ice King gets engaged to.
- Voiced by Kerri Kenney-Silver
- Eye Scream: Her eyes get painfully huge."I'm not crying, Finn. My tear sac is broken."
- Mind-Control Eyes: 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.
- Open the Iris: The entirety of her eyes, white, iris, pupil and all get huge under mind-control.
- Hypnotize the Princess: The Ice King gets her to accept his engagement with a cursed engagement ring.
- Younger Than They Look: Old Ladies are their own race of people in Ooo, so Old Lady Princess may not actually be that old.
Grandmaster WizardThe ruler of Wizard City and judge of Wizard Battle.
Voiced by: Maurice LaMarche
- Cats Are Magic: He turns people into cats, and usually has cats crawling all over him.
- The Archmage: Appears to be the master of all wizards.
- Benevolent Mage Ruler: For the most part.
- Emerald Power: His eyes are emeralds.
- The Magocracy: Runs one in Wizard City, where only wizards are permitted.
- Wizard Beard: He appears to be nothing but beard.
AbracadanielA low-level wizard who can only perform rainbow-based magic.
Voiced by: Steve Little
- Ambiguously Gay: He's extremely effeminate, all of his magic is rainbow-based, and he acts disgusted at the idea of kissing Princess Bubblegum.
- And I Must Scream: The Ice King trapped him in a block of ice in "Friends Forever". He can only blink.
- Beware the Silly Ones: He seems goofy and harmless, but he once attempted to kill Princess Bubblegum in a knife fight.
- Inept Mage: All he can do is rainbow magic, and he can't do it very well.
- Odd Friendship: With the Ice King.
- Whatevermancy: His rainbow powers.
- What Kind of Lame Power Is Heart, Anyway?: His magic is completely useless.
Ron JamesThe owner of Ron James' Spell Palace in Wizard City.
Voiced by: Duncan Trussell
- Inept Mage: Not at the same level as Abracadaniel, but his potions have a tendency to fail.
- Made of Magic: Insists that his spells are this. Princess Bubblegum disagrees.
- Shop Keeper: Of a magic store.
- Snake Oil Salesman: Bubblegum's impression of him.
- Totally Radical: His way of speaking.
The Ancient Sleeping Magi of Life GivingA being with life-giving powers, found dwelling in a dungeon. The Ice King seeks him out in order to bring his fanfiction to life.
- Voiced by Dana Snyder
- Adorkable: "I brought tiny umbrellas!"
- Animate Inanimate Object: He gives any inanimate objects life.
- Daddy Issues: His mental trauma over his abusive father screws up his magic, making all of the things he animates become evil.
- Momma's Boy: But he can animate good things by thinking about his loving mother.
- Psychoactive Powers
The Secret SocietyA secretive magical order made up of Bufo the Tadpole Wizard, Forest Wizard, and Laser Wizard. Ice King sometimes sneaks into their meetings.
- The Archmage: Bufo runs the wizard academy in "Wizard."
- Badass Creed: Their oath.
- Druid: Forest Wizard's style of magic.
- Frickin' Laser Beams: Laser Wizard's power.
- Gone Horribly Wrong: Their plan to gain additional powers by awakening Bella Noche did not go as planned.
- Human Sacrifice: They planned to sacrifice Abracadaniel in some sort of mystic ritual.
- Mind Hive: Bufo isn't the toad. Bufo is the tadpoles inside the toad.
- Magical Society: One of many exclusive wizard societies in Wizard City.
- The Order
- Wizarding School: Bufo runs one of these.
Huntress WizardA female warrior wizard who lives a secluded life in nature.
- Action Girl: Of course. Why else would she have such a name?
- Animal Motif: An elk. She rides one, wears antlers, lives in the woods, and is stoic and dignified.
- Archer Archetype: She can shoot arrows without a bow, likely due to magic.
- Druid: She used to be one before getting involved in magic.
- Green Thumb: She has leaf-like hair and can even transform into things like trees.
- Promoted to Love Interest: Only for one episode (so far?), but it's still a definite step up from minor background figure with a cool design.
- Mind over Matter: Rather then carrying a bow, she controls her arrows via telekinesis.
- Not Distracted by the Sexy: She's very good at maintaining direct eye contact with Finn... when he's bathing.
- The Stoic: Seems to act the stoic as much as possible, because hard meat don't get eat.
- Involuntary Shapeshifting: She turns into a log when she sleeps. It's unclear if she does this deliberately, or is even aware that she does it.
The Lemongrab Earldom
Lemongrab 2Lemongrab's clone. Created by Princess Bubblegum for the purpose of giving Lemongrab a companion.
- Voiced by: Justin Roiland
- Butt Monkey: Not initially, but by "Too Old", he had become this to the original Lemongrab.
- Clones Are People Too
- Cloning Blues: Lemongrab 2 was created to be a companion to the first one, and, despite their obnoxious personalities, are actually both very happy together with their family until "Too Old".
- Color-Coded Characters: To differentiate between him and Lemongrab, one wears grey and the other wears white.
- Defector from Decadence: Lemongrab 2 in "Too Old" is rebelling against Lemongrab 1.
- Divergent Character Evolution: 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 levels in cruelty and insanity.
- Good Parents: As evidenced in "All Your Fault" (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", and especially Too Old, Lemongrab 2 is a loving father to his many children, starkly contrasting the direction Lemongrab 1 wound up going. This is most clearly (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.
- Hair-Trigger Temper: Though downplayed compared to his clone. In "Too Old" it's nearly nonexistent, presumably because he's very, very weak from hunger and from being sick.
- Handicapped Badass: 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/Jerk with a Heart of Gold: In his earliest appearances, he comes across as being mildly annoying, but unlike the originalLemongrab, that's the only problem he appears to have. The "jerk" part seems nonexistent by the time of "Too Old", as he's nothing but nice and generous throughout the entire episode.
- Killed Off for Real: 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.
- Morality Pet: Formally to Lemongrab. Grossly averted in "Too Old."
- Naked on Arrival: The first time we see Lemongrab 2, he's butt naked.
- 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.
- Papa Wolf: To the bitter end.
- Took a Level in Kindness: 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.
- Vocal Evolution: 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 Only Sane Lemon and selfless Papa Wolf.
LemonjonThe 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. 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
- Ambiguous Disorder: 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 cardiac arrest, which was only resolved when Finn and Jake punched his heart.
- Big Damn Heroes: Literally.
- Children Are Innocent: Oh yeah.
- Cloud Cuckoolander: Not to the same extent as the earls, but he is a pretty strange dude.
- Dark Is Not Evil: His appearance is disturbing and he's pretty damn ugly, but he's a downright wonderful guy.
- Final Speech: Gives a beautiful, eloquent, and heartbreaking one just before 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! The greater good demands but one course only! That I dissolve the bonds uniting me and become component to all!
- First Time Feeling: "Is this the rumored ache of feeling? The feeling of caring unknown to lemons?"
- Funny Afro: 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.
- Gag Nose: He has two. Why the Lemongrabs thought it was essential that Lemonjon have two noses has not been explained.
- Gentle Giant: Absolutely. He's one of the largest Candy People ever to exist, and he's also perhaps the most selfless.
- The Giant: He's as big as the whole castle, and is the castle, kind of.
- Giant Mook: The Lemongrabs attempted to use him as this.
- Heart Trauma: Finn and Jake punch his heart to attempt to kill him. Instead, this causes his heart to start beating, resulting in Lemonjon having an epiphany.
- Heel–Face Turn: While he was never a villain, he seemed neutral, yet still willing to attack the Candy Kingdom. But he eventually Took a Third Option which resulted in his own death.
- Heroic Sacrifice: To save his family and the Candy People.
- Killed Off for Real: The second important character to suffer the fate of permanent death- the first was Billy.
- Large Ham: " Mmmmmm... MENAGERIE! "
- Like Father, Like Son: "Three weeks dungeon." He seems to have inherited the pedantic speech of his fathers.
- Literal Change of Heart: His heart actually awakens when Finn and Jake punch it.
- Moral Dilemma: "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 but his own.
- The Needs of the Many: His reasoning for his Heroic Sacrifice.
- No Indoor Voice: 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.
- Take a Third Option: He 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.
- Too Good for This Sinful Earth: "Man... That Lemonjon was all right."
- Tortured Monster: Although the Lemongrabs view him as a child, they did attempt to use him as a weapon. And when he's slowly standing up, after months of literally being attached to the ground, he sounds like he's in pain.
- Wacky Parent, Serious Child: He seems much more down-to-earth and reasonable than his dads.
- What Is This Feeling?: Mentions this trope in his final speech.
- Younger Than He Looks: He's a giant and he has a low, booming voice. But the Lemongrabs say that Lemonjon is "young," and only a child. Which makes his untimely and sudden death all the more heartbreaking.
Lemon ChildrenThe strange-looking and eccentric, toddler-aged children of the Lemongrabs. They reside in Lemon Castle, and there seem to be dozens of the little pooters.
- Voiced by: Justin Roiland
- Affectionate Nickname: According to the screenshot of Lemongrab’s brain, the earls affectionately call their babies “little pooters.”
- Amazing Technicolor Wildlife: The Lemon Children are a strange combination of person, plant, animal, and fungi- and they’re all various shades of yellow, orange, and green.
- Ambiguous Disorder: They all seem pretty “off,” but it hasn’t been made clear if they’re as bonkers as their dads yet.
- Babies Make Everything Better: According to the Lemongrabs.
- Baby Talk: The only word we could hear them say was “hungry” and "candy." For the most part, they just babble and shriek.
- Big Screwed-Up Family: Oh, yeah.
- Body Horror: Some of the Lemon Children are rather grotesque- limbless, disfigured faces, lumpy and misshapen.
- Carnivore Confusion: 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.
- Children Are Innocent: Toyed with. They seem to mostly be toddlers, but they’re enthusiastic about their dads’ plan to take over the Candy Kingdom.
- Cloud Cuckoolander: Obviously, given who their progenitors are.
- Conjoined Twins: Some of them.
- Creepy Child: Finn and Jake seem to think this about some of the Lemon Children, especially the one whose face pealed back.
- Cute but Cacophonic: Many of the Lemon Children are rather adorable in appearance, but they have high-pitched, shrieking voices.
- Dysfunctional Family: Let's just say, they're about as functional as the Griffins if they were all three times as insane, and lemons.
- Eyeless Face: Some of them don't have eyes or faces. In fact, some of them are just lemons with wings attached.
- Gag Nose: 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.
- Green Eyes: The Lemon Child with the pealing face has green eyes.
- Grotesque Gallery: They're all twisted and lumpy.
- Has Two Daddies: They are Lemongrab and Lemongrab 2's children, weird considering they're brothers), but regardless, they're a big happy family.
- It Runs in the Family: Some of them seem pretty “special.”
- Last Minute Baby Naming: 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.”
- Let's Have Another Baby: The earls probably said this to each other at some point, and it just kept happening, over and over again…
- Like Father, Like Son: Many of them have the same eyes as their fathers, and many of them resemble lemons in some way.
- Massive Numbered Siblings: Well... there are over twenty of them.
- Nice Shoes: The multi-mouthed lemon child has a pair of little hot pink cowboy boots.
- Nipple and Dimed: Several of the Lemon Children have nipples and visible breasts (due to being chubby babies.)
- No Indoor Voice: 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.
- One-Gender Race: According to the Lemongrabs, all of their children are male.
- Petting Zoo People: They range from being strange-looking people to being anthropomorphic to looking like actual animals.
- Pint-Sized Kid: Some of them.
- Plant Person: Some of the Lemon Children resemble plants or mushrooms.
- Royally Screwed Up: Assuming the Lemongrabs are brothers.
- Shared Family Quirks: Their tendency to scream at random intervals. Apparently, the earls view the screams of their children as “piercing songs.”
- The Scream: They take after their fathers in this department. Seems to be a lemon trait.
- That Thing Is Not My Child!: 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.
- Too Many Babies: Or in this case, way too many.
- The Unintelligible: Because of their age, they can only communicate using one-word or monosyllabic sentences, strange noises, and shrieks.
- Vocal Dissonance: 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.
- Vomit Indiscretion Shot: Seed-Wad barfs all over himself after the Lemongrabs make him.
- Wave of Babies: The Lemon Children all mob Finn and Jake in a large herd, rubbing against them and attempting to chomp on them.
- What Measure Is a Non-Cute?: 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 Ugly Cute and strange of all them.
LemonhopeOne 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
- Book Dumb: 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.
- The Call Knows Where You Live: His attempts to run away from his debt to the Lemon People, failed because of his guilty conciense.
- A Day in the Limelight: Has his own two-part episode.
- Dark and Troubled Past
- 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.
- Has Two Daddies: Personality-wise, he's inherited traits from both.
- I Just Want to Be Free: 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.
- It's All About Me: 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
- Meaningful Name: He is believed by all the Lemon Children and Lemongrab 2 to one day bring hope to all of them.
- Messianic Archetype: For the Lemongrab Earldom.
- Only Known by Their Nickname: His given name is "BadLemonNoHope", but prefers "Lemonhope" and is only called that by Lemongrab.
- 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.
- Sociopathic Hero: 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.
- Shared Family Quirks: 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.
- The Unfavorite: Out of all their children, Lemonhope is Lemongrab's least favorite, to the point that he's kept locked in a bathroom.
- Ungrateful Bastard: Doesn't show concern with how Lemongrab is treating all his siblings as punishment for helping him escape.
- Walking the Earth: Does this for the next thousand years after freeing Castle Lemongrab.
The Flame Kingdom
FlamboA 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.
- And Your Reward Is Edible: Characters are shown feeding him charcoal as payment for his services.
- Baleful Polymorph: "Incendium" implies that he, and all flambits, were created from normal fire elementals by Flame Princess in one of her tantrums.
- Exact Words: "I know just the skirt! And she's way hot!
- The Gadfly: 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. Also I spat on ya's.
- The Informant: He helps Finn and Jake keep tabs on the Ice King.
- Instant Runes: When casting.
- Kill It with Water: In the video game Flambo's Hot Mess.
- Mundane Utility: 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."
- My Species Doth Protest Too Much: Flambo's fairly nice if mercenary, but supposedly everyone in the Fire Kingdom is evil.
- Playing with Fire: It may just be an extension of his natural body, but Flambo can keep things warm and set them on fire.
- Put on a Bus: Andy Ristaino has stated that Flambo is hard to get ahold of, explaining why he's not usually around to cast Flame Shield on Finn for his dates with Flame Princess.
- Screams Like a Little Girl: 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.
- Status Buff: The only magic ability he's shown so far was Flame Shield, which protects mortals from fire.
- Unexplained Accent: He may not be from the Bronx, but his accent sure is.
Flame KingThe former ruler of the Fire Kingdom and father of Flame Princess. He is evil, like everyone in the Fire Kingdom.
- Voiced by: Keith David
- Abusive Parent: 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 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.
- Bad Boss: Was fine with "Finn" killing his court jester and in Playing With Fire he chastised his cook for dinner being ready 10 minutes early.
- Cain and Abel: He extinguished his own brother to become King.
- Card-Carrying Villain: He may not be of the diabolical Laughing Mad variety, but he's still pretty open about the fact that he's evil.
- Evil Tropes: He, and all other people in the Fire Kingdom, are evil:
- Affably Evil: He's quite polite for an Evil Overlord.
- Even Evil Has Standards: 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.
- Evil Is Burning Hot: The Flame King, anyone?
- Evil Overlord: He rules over the Flame Kingdom.
- Evil Parents Want Good Kids: 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!
- Evil Sounds Deep: Comes with being voiced by Keith David.
- For the Evulz: Playing With Fire shows him terrorizing the citizens of the Flame Kingdom just because he can.
- Klingon Promotion: 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.
- Large and in Charge: He's a big dude, to say the least.
- Orcus on His Throne: 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.
- Sealed Evil in a Can: Usurped by his daughter and put inside the same lantern he put Flame Princess in.
Deities and Cosmic Beings
PrismoAn all-powerful being who resides in the center of the multiverse. He's close friends with the Cosmic Owl, and has the power to grant wishes (with a twist) to anyone who reaches him, and alter the course of time itself at will. He is the product of an old man's dream, who keeps Prismo alive as long as he's asleep. However, the Lich kills his corporeal body in "Wake Up," ultimately killing Prismo as well. This did not stop him for long as he used a time paradox to return.
- Voiced by: Kumail Nanjiani
- Adorkable: He's an extremely awkward, exceedingly nice guy.
- Always Someone Better: He has a "boss" who would be upset if the Space Time Continuum was destroyed. Given Prismo's power, this is someone very powerful indeed.
- Ambiguously Gay: Prismo's pink-colored, he talks with a slight lisp, and he's "friends" with the Cosmic Owl and Jake, two males.
- Back from the Dead: 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.
- Badass Adorable: He's unbelievably sweet, but he can alter reality and grant a potentially infinite number of wishes of any kind to anybody.
- Because You Were Nice to Me: 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.
- Benevolent Genie: He's nice to an almost absurd degree. How nice? He straight out tells Jake not to waste his one wish on something stupid, 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 "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.
- Celestial Bureaucracy: "Crossover" reveals he has boss.
- Cheated Angle: He's almost always in profile but that seems to be by choice. He can turn his head despite his one-dimensional appearance.
- Confirmed Bachelor: 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 Prismo seems more interested in Jake's company than anyone else's.
- Could Say It But: He stretches this trope about as far as it goes.
- The Cutie: GOOD LORD.
- Didn't Think This Through: 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.
- Dream Apocalypse: 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 Citadel.
- Heroic Sacrifice: He allows Finn and Jake to wake up his human form, thus destroying his Wishmaster form.
- Fatal Flaw: 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.
- Literal Genie: Played with. The wishes executed act like this in nature, but he admits that he doesn't do it deliberately because it is out of his control. Careful, specific wording can get around the Be Careful What You Wish For part, and although he granted 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.
- Living Dream: He is an entity born from the dreams of an elderly man.
- Nice Guy: Really nice. He seems like an all around great guy.
- Nonstandard Character Design:
- Our Genies Are Different: He grants wishes like genies would, but he's two-dimensional, is physically like a shadow and he lives at the center of the multiverse.
- Oh Crap!: 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.
- Reality Warper: He grants wishes that can alter the course of history.
- Time Master: Sort of. He uses wishes to allow people to navigate The Multiverse and stays in his own time-sealed room, but doesn't really ever leave it.
The Cosmic Owl
- Voiced by Jeremy Shada in What is Life, M. Emmet Walsh in all other appearances
- Animalistic Abomination: 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.
- Cosmic Entity: The exact details of his powers aren't clear, but the people of Ooo regard him as a being of great importance.
- Dream Walker: By entering people's dreams, he ensures that they come true, either literally or metaphorically.
- Energy Being: It is an owl that is made out of yellowish cosmic energy.
- Nice Job Breaking It, Hero: In Hoots, he accidentally is present while princess Bubblegum was dreaming about the Candy Kingdom's destruction, meaning he accidentally doomed the kingdom to an unknown catastrophe
- Ominous Owl: Subverted, it's less of a malevolent force and is more of a natural force with some hobbies.
- Only Friend: Prismo is his.
- Physical God: Easily one of the most powerful entities in the series, but it does not directly interfere in the plot.
- Reality Warper: To a certain extent. The way his powers work mean that, whatever the person is dreaming, as long as he is present, it will come true in the real world.
- Verbal Tic: He hoots whenever he says a word with an "oo" sound.
- Vocal Dissonance: One of the most ancient and powerful entities of the series, but it has a youthful, Southern drawl.
The King of Mars, and possibly the most powerful being in the Adventure Time universe, with the exception of Prismo.
Voiced by: Pendleton Ward
- Balancing Death's Books
- Early-Bird Cameo: Lincoln appeared as early as the 2008 short in a very... weird scene, and never came back until "Son of Mars" in 2012!
- Friendless Background: 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."
- God Emperor: He's the Martian King. He also appears to be a god.
- Heroic Sacrifice: In order to bring Jake back from the dead, he offers Death his own immortality.
- Large Ham: Ridiculously so.
- My God, What Have I Done?: Upon Jake's death, who he thought was the Magic Man.
- No Indoor Voice: Well, he's never really indoors.
- Nonstandard Character Design: Really the only character in the entire series drawn with vaguely realistic features.
- The Paragon: Finn refers to him as "the wisest, most honest superbeing of all time".
Grob Gob Glob GrodA 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)
- Badass: Took on Orgalorg, a being more powerful than the Lich, and beat him in a few sword strikes.
- Cain and Abel: The Abel to Magic Man's Cain.
- Cosmic Entity: But like the Cosmic Owl, the extent of his power isn't clear.
- God Is Dead: As of "Astral Plane."
- Heroic Sacrifice: Dies protecting the people of Mars from an incoming 'catalyst comet', which turns out to be Martin's spaceship
- Multiple Head Case: He has four faces, each of which is a distinct being.
- Physical God
- Pieces of God: His helmet fell down in You Forgot Your Floaties, Magic Man tried to use it and Betty's true human blood to take his power, but Betty took it instead. And Magic Man's
- Starfish Alien: Even by Adventure Time standards, he's one of the strangest-looking beings in the show.
Ruler of the Land of the Dead, and has power over the deceased, able to raise them whenever he wills it. Best friends with Peppermint Butler.
- Voiced by: Miguel Ferrer
- Deal with the Devil: In "Sons of Mars", Death agrees to resurrect Jake in exchange for Abraham Lincoln's immortality. It's also implied that he once revived someone for Lincoln in exchange for a penny.
- Dem Bones: He appears as an anthropomorphic skeletal equine.
- Don't Fear the Reaper: When we actually see him doing his job as opposed to dealing with people invading his territory and trying to resurrect people, Death is rather friendly. He prepares a special trip for Simon with music and everything and both he and his target consider it a Mercy Kill. When said target decides to let the attempt to save him go on anyways, Death steps back to see what happens.
- Intangible Man: Apparently you can't kick him if your brain is stupid.
- Kiss of Death: Subverted. A kiss from Death gives you your memory back.
- Light 'em Up: Lives in a castle of light. This doesn't affect his morality much.
- Man in White: Is decked out in all white clothing.
- Nice Hat: Rocks a cowboy hat.
- Rock Me, Asmodeus!: For a skeleton, he's quite skilled with a guitar.
- Serious Business: Musical battles.Death: Those the rules of the Land of the Dead; lose a music battle, lose your life.
- Stealth Pun: Plays Death Metal in a musical battle.
The personification of life. Death's girlfriend. Appears in the digital short "The Gift That Reaps Giving".
Voiced by: Hynden Walch
- Fertile Feet: Plants grow wherever she walks.
- Snake People: She has two intertwined snake heads, referencing the caduceus.
- Voice of the Legion: Her heads speak simultaneously, creating this effect.
GolbA mysterious, yet threatening, cosmic entity that bears a striking resemblance to Grob Gob Glob Grod.
- I Shall Return: Grob Gob Glob Grod believes he will attack Mars again, which Magic Man agrees with...at first.
- Overly Long Tongue: Its always hanging out of his mouth.
- Ret Gone: Presumably what he did to Margles, since not even Prismo could bring her back! When he tried to, all he conjured up was a wastebasket, and he says that something like that has never happened before. Its possible the same thing happened to Finn's life in 'Puhoy'.
The Catalyst CometThe otherworldly force that causes major, and often dangerous, changes in the world whenever it passes. In "The Comet", it is revealed to be sentient and actually rather benevolent.
- Alien Geometry: Its really a hollowed-out sphere with 3 eyes.
- Arc Villain: Sorta one for season 6. Subverted when its revealed to not really be evil.
- Ascended to a Higher Plane of Existence: Its offer to Finn, which he declines. Martin is eager to take it up, though.
- Comet of Doom: Causes catostrophic events whenever it passes. It turns out that it isn't a malevolent force, but rather just an agent of change.
- Long List: Tells Finn about the attributes and events in his life while bringing up its cosmic offer, and when Finn points out that its just droning on, the comet defensively states that its a long list.
- Purple Is Powerful: It can alter the course of reality itself!
- Walking Spoiler: Due to its sentience and intentions.
Jake and Lady Rainicorn's Puppies
Jake Jr.One of Jake and Lady Rainicorn's puppies. She has recently become a thief like her father was in his youth.
Voiced by: Kristen Schaal
- Eyeless Face: 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. Turns out her odd face may be inherited from her extra-dimensional "grandmother".
- Gender-Blender Name: She's a girl named Jake.
- Rapid Aging: 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.
- Voluntary Shapeshifting: Her hair can grow and be controlled in the same way her father controls his body.
- Wacky Parent, Serious Child: In "Another Five More Short Graybles".
- "Well Done, Daughter!" Girl: She wants Jake to be proud of her. He is...especially after she demonstrates what a skilled criminal she is.
- What Does She See in Him?: Believes her mother has strange taste in men.
- What The Funky Fresh, Honey?: Jake gives her one after she manipulated him to pull a heist.
T.V.Another of Jake and Lady's puppies. He still lives with his mother.
Voiced by: Dan Mintz
- Basement-Dweller: Lives with his mother and spends his time playing video games.
- Cannot Tell Fiction from Reality: He hallucinates that the events in BP's diary are happening to him.
- Geek Physiques: He's the chubbiest of his siblings.
- Hollywood Nerd
- Man Child: He's the same age as Kim Kil Whan, but acts like a teenager.
- Momma's Boy: In the sense that he still lives with Lady (and uses her shampoo), but he also seems the closest to her out of all the pups. At the end of "Lady Rainicorn of the Crystal Dimension", he tells her he wants to "learn to be cool, like you."
- Mr. Imagination: He imagines himself as part of BP's diary.
- Rapid Aging: Like the rest of the puppies, though he still acts the most childish.
Kim Kil WhanThe most responsible of Jake and Lady's puppies.
Voiced by: Marc Evan Jackson
- Aloof Big Brother: To his less responsible siblings.
- Beard of Evil: Though he's more amoral than evil, he has a classic pointy villain beard.
- Corrupt Corporate Executive: He buys out his father's treehouse and splits it into thirty-seven tiny apartments that he rents out.
- Foolish Sibling, Responsible Sibling: The responsible sibling to Jake Jr. and TV's foolish siblings.
- Interspecies Romance: He's married to a bear, and they have a daughter.
- Jerk with a Heart of Gold: He's not a bad guy, but he's very callous and cruel to his father in the course of trying to teach him responsibility.
- Landlord: Becomes this to Finn and Jake, buying their treehouse out from under them.
- Rapid Aging: Even more noticeable than his siblings. He has a beard by three days old.
- Rules Lawyer: Jake digs up a golden bone in his yard to buy back the treehouse. Kim Kil Whan reasons that since the yard is his property, the bone already belongs to him.
- Wacky Parent, Serious Child: He is extremely responsible, and resents his father's laid-back lifestyle.
ViolaAnother of Jake and Lady's puppies.
Voiced by: Paget Brewster
- Daddy's Girl: Thinks Jake is the best father in the world, despite hardly ever seeing him, and is the only one of Jake's kids who respects him after Rapid Aging.
- Proper Lady: She speaks in a very posh manner...
- Adorkable: Except around her dad.
- Rapid Aging
- The Dog Bites Back: At LSP.
CharlieThe last of Jake and Lady's puppies. Has yet to have any lines.
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)
- Action Girl: Margaret qualifies, as she accompanies her husband on his monster-hunting expeditions. She seems to favor a crossbow and shuriken.
- Pregnant Badass: Although her pregnancy prevents her from being as deadly as usual, she manages to defeat the monster who bit Joshua by herself.
- Bad Ass: Joshua routinely defeats powerful demons. Margaret herself is no slouch and loves fighting monsters with her husband.
- Battle Couple: Both of them work together in their monster hunting business.
- Cool Sword: Joshua was the original owner/creator of the Demon Blood Sword.
- Deceased Parents Are the Best: 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.
- Face Full of Alien Wing-Wong/Mr. Seahorse: Joshua is the one who gave birth to Jake, who popped out of his head after he got bitten by a monster.
- Good Parents: 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.
- Good Scars, Evil Scars: The reason why Joshua always wears a fedora is to hide a scar he got from giving birth to Jake through his head.
- Kleptomaniac Hero: As Jermaine reveals Joshua stole alot of stuff from demons....and the demons want their stuff back.
- Motor Mouth: Joshua tends to talk like this.
- Posthumous Characters: Both are dead by the time of the first episode, but they appear in flashbacks.
- Truly Single Parent: While Jermaine was created the "normal" way, Jake himself sprouted from Joshua's head, a la Athena.
- Would Hurt a Child: Double Subverted by Margaret: Upon realizing that the monster she needs to defeat in order to save her husband is a baby, she starts to apologize... then socks it in the face to take its venom.
- Voiced by: Tom Schlarpling
- Badass Normal: Despite not having powers, he holds his own when it comes to dealing with demons.
- Big Ol' Eyebrows: Pretty much the only thing that makes him visually distinct from Jake.
- Foolish Sibling, Responsible Sibling: The responsible one in the family.
- Green-Eyed Monster: Gets in a fight with Jake over his jealous that Jake was their father's favorite, while he was left to take care of their father's stuff.
- Middle Child Syndrome: Never explicitly stated, but adds up to the sibling birth order revealed in "Joshua and Margaret Investigations" and to Jermaine's issues towards his brothers (see The Resenter below).
- The Resenter: Has a lot of pent-up resentment towards his brothers.
- The Dutiful Son: Spends his life watching over their father Joshua's stuff, and is jealous of the adventurous life that Finn and Jake lead. Subverted, when Jake points out that he could have left any time he wanted, and Jermaine agrees that he "built his own cage".
Hunson AbadeerAlso 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
- Affably Evil: 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).
- Faux Affably Evil: Like Marceline, he's a playful troll. Unlike Marceline, he makes good on his threats and then some.
- Artifact of Doom: He owns an amulet made of concentrated Chaotic Evil, which gives the wearer a nice suit and transforms him or her into a ruthless Eldritch Abomination.
- Badass in a Nice Suit: Pilfers souls, while dressed in a snappy suit and tie.
- Card-Carrying Villain: He's described himself as "completely evil" with no shame.
- Chaotic Evil: Invoked. He grew up with it.
- Does This Remind You of Anything?: In his One-Winged Angel form, his face is large and round, with a vertical slit for a mouth.
- Embarrassing Real Name: Jake seems to think so, as he scoffs when he first hears it.
- Even Evil Has Loved Ones: He really does love his daughter, even if he doesn't show it that much.
- Everyone Calls Him Marceline's Dad: Until "Return to the Nightosphere"
- Follow in My Footsteps: Very much wants this for Marceline, to the point where he fools her into taking his Artifact of Doom 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.
- Humanoid Abomination/Eldritch Abomination: His default form looks human, but is really a deathless, soul sucking demonic entity. His One-Winged Angel form falls firmly in Eldritch Abomination turf.
- Immortality: According to Marceline, he's "deathless" and can't die.
- Interspecies Romance: Had one with a human woman, and together they had a daughter, Marceline.
- Living Forever Is Awesome: He's more like "meh" about it but he doesn't share any of his daughter's angst.
- Marionette Motion: Apparently a function of the amulet, as he moved normally when he wasn't wearing it.
- Names to Run Away from Really Fast: It's not mentioned in the episode, but his title is the Lord of Evil.
- No Name Given: Until "Return to the Nightosphere"
- Our Demons Are Different: Described by Word of God as more demonic than a vampire.
- One-Winged Angel: Like his daughter, he can turn into a giant monster. Though his is much more monstrous. Apparently he requires an object of power to do so. She does not.
- Parental Neglect: 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.
- Pet the Dog: 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.
- Sealed Evil in a Can: Escaped from the Nightosphere in "It came from The Nightosphere" thanks to Finn, but is banished back by episodes end.
- Unreliable Narrator: While he wrote the 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).
- Unknown Rival: Claims to be the Lich's rival in the Adventure Time Encyclopedia. While he is likely one of the only characters with power comparable to him, the Lich doesn't appear to be threatened by him enough to try to kill him like he did with all of his other enemies.
- "Well Done, Dad" Guy: Cares a lot for Marceline's approval, even though he tends to go about it all wrong.
- Your Soul Is Mine: His MO.
First appearing as a ghost in third season episode, "The Creeps", Shoko was a one-armed vagabond and mercenary with a tiger companion when she was still alive, and stole a powerful amulet from Princess Bubblegum in the time of the Candy Kingdom's founding. She dies in the attempt by falling into a radioactive river, but as "the Ghost Lady," she haunts the vault of Finn's mind, yearning for atonement. Finn is actually her reincarnation.
- Voiced by: Isabelle Fuhrman
- Action Girl
- Action Pet: Her tiger, who is also her mount.
- Ambiguously Human: Even though she has a name and upbringing from a distinctly human ethnicity, it's not quite certain what kind of humanoid she is.
- An Arm and a Leg / Artificial Limb: 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 build the Gumball Guardians.
- Ascended Extra: Originally part of a one-off Gainax Ending gag in "The Creeps".
- The Atoner / Ghostly Goals: The reason why she haunts Finn's dreams.
- Body Horror: Falling into a moat of radioactive Mutagenic Goo turned her into a weird worm-like creature. On the plus side, her right arm grew back.
- Chekhov's Gunman: Turned out to be a lot more important than she first appears...
- Continuity Nod/Mythology Gag: 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, as do all alternate universe versions of Finn. As of "Escape From the Citadel", Main!Finn is finally missing one too.
- Handicapped Badass
- Hilariously Abusive Childhood: 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.
- Nuclear Nasty: She emerges from the radioactive river as one, but quickly dies. She then haunts Finn in that form.
- Our Ghosts Are Different: 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.
- Parental Abandonment: Left at a dojo by her parents.
- Past-Life Memories: Most of what's known about her is from Finn's mental "Vault".
- Reincarnation: The most recent past life of Finn.
An odd figure from the future, and narrator of stories he calls Graybles.
- Voiced by: Emo Phillips
- Fluent In Gibberish: Peppers his sentences with nonsensical words. For example.Cuber: I'll see you crimpy glimmers on triode flimpin' the diode.
- Greek Chorus: Acts as one for his Graybles.
- No Fourth Wall: He routinely speaks directly to the viewers.
- Trickster Mentor: Sorta acts like this to the viewers because some of his Graybles are designed to mislead the audience.
A pig who used to eat people for the mob. Now married to Tree Trunks, and the adoptive father of the Lich.
- Voiced by: Ron Lynch
- Apologetic Attacker: "Uh, I'm sorry y'all. They're making me do this. I'll try to make it quick."
- Cannot Spit It Out: He has some trouble admitting his love to Tree Trunks.
- Happily Married: To Tree Trunks, though "Escape From the Citadel" implies that this may not be entirely the case.
- Fed to Pigs: His job was to be one of these pigs, until Finn and Jake rescued him.
- Interspecies Romance: With Tree Trunks.
- Good Parents: To the infant Lich. Whether this will actually do any good remains to be seen.
- Sickening Sweethearts: With Tree Trunks, to the point that everyone in Ooo is disgusted by them.
- Super Senses: He has super-sensitive hearing, which is something that pigs actually have.
- Talking Animal: One of the many that populate Ooo.
A member of Jake's old gang of criminals. Desperately wants to be friends with Jake again.
- Voiced by: Vincenzo Rauso (Season 1), Collin Dean (Season 5 & 6)
- Arch-Enemy: He considers Finn to be his.
- Ax-Crazy: Finn can't even get Tiffany to stop trying to stab him long enough for them both to fight giant worms.
- The Bus Came Back: He's used for a one-off joke in "My Two Favorite People", and doesn't return again until "One Last Job", where he gets a much larger role.
- Crazy Jealous Guy: He wants to be Jake's best friend again, and he will let nothing stop him.
- Delusions of Eloquence: He makes a lot of long, flowery speeches, but they're entirely meaningless and he has to write them down on his arm so he doesn't forget the words.
- Enemy Mine: He and Finn have to work together in "Dentist".
- Evil Counterpart: Finn's.
- Gender-Blender Name: He's a boy.
- Ice-Cream Koan: Tends to make meaningless cryptic speeches.
- I'll Kill You!: He makes no secret of his murderous intentions towards Finn.
- Jabba Table Manners: Eats like this after losing his teeth.
- Murder the Hypotenuse: He plans to murder Finn so as to have Jake all to himself.
- Never Found the Body: He gets eaten by a giant worm in "Dentist", but it's implied that he's still alive.
- Perma Stubble: Played for Laughs, as his stubble is simply pubescent peach fuzz.
- The Rival: To Finn.
- Stalker Shrine: He has one of these devoted to Jake.
- The Tooth Hurts: He lost all of his teeth biting into the Baker's Shard.
- Vague Age: Looks and sounds about Finn's age and is a bit shorter than him, but apparently ran with Jake back when he was criminal, which is implied to have been a while ago.
- Vocal Dissonance: He's a conniving, murderous criminal with a penchant for villainous monologuing, but he has the voice of a little kid.
A member of an underground dwelling group of humans. The "humans" she lives with are eventually revealed to be hyoo-mans, a strange race of Fish People living in the ruins of human civilization. Susan herself is the only true human amongst them.
- Voiced by: Jackie Buscarino
- Ambiguously Human: Turns out she is, although she may also be...
- Cyborg: Implied by the strange implant seen on her head.
- Badass: That muscular build isn't just for looks.
- Cowardly Lion: Better than the rest of her people, certainly.
- Expy/Shout-Out: Of Tarzan, much like Finn. In Susan's case it's a lot more obvious, since she's Raised by Wolves that don't act civilized but live as a group which she leads, and she doesn't speak fluent English.
- Green Eyes: Not that they really indicate anything though.
- Huge Schoolgirl: Big in every way. There is pretty much no physical indication of youth, leading to her Vague Age.
- Sweet Tooth: She, along with the rest of her tribe, actually tries to eat the entire Candy Kingdom.
- Took a Level in Badass: 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.
- The Unreveal: We never find out if she's a fish person like the others, or a real human.
- At the end of 'Beautopia' 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 Character Development imply that she is human.
- Though her eyes did 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": she IS a human, but may also be a cyborg.
- Vague Age: She and Finn have more than a little chemistry, and Hulk Speak and Naďve Newcomer aside they seem to be on the same intellectual level. However, Susan's body type is very much that of an adult woman.
- You No Take Candle: 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".
An anthropomorphized goose with extremely wobbly neck and limbs who speaks mostly in rhyme and sells all kinds of adventuring gear. Choose Goose sometimes teases Finn to manipulate him into buying his wares, but is mostly on good terms with him and Jake.
Voiced by Jeff Bennett
- Alternate Self: A human version of Choose Goose, named "Choose Bruce", appears in the alternate "Farmworld" universe.
- Meek Townsman: 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.
- No Celebrities Were Harmed: His voice is based on famous actor/comedian Ed Wynn.
- Rhymes on a Dime: Not always, but usually.
- Shop Keeper: In the Dungeons & Dragons mold, selling magic items.
- Species Surname: Choose Goose.
A... well, a Banana Man who is probably the best engineer in Ooo. According to an apparent "croak dream," he will be present at Jake's death, though the dream is later fulfilled and Banana Man actually saves Jake from his apparent death.
Voiced by: "Weird Al" Yankovic
- Big Damn Heroes: He shows up just in time to save Finn and Jake from the depths of space in "The Comet".
- The Chew Toy: In his first appearance, Finn and Jake destroy his home and his rocket ship. In his second, he helps save the Candy Kingdom but gets arrested for public nudity (though it's implied that he also hooks up with a female Banana Guard).
- The Engineer: Helps Finn and Jake fix up an old truck.
- Gadgeteer Genius: He can build a functioning rocket ship, the technology for which was lost after the Great Mushroom War.
- I Just Want to Have Friends: He agrees to help out Finn and Jake just because he wants to hang out with them.
- Mr. Fixit: He can fix a truck that's been broken-down for over one thousand years.
- Nice Guy: He's even willing to forgive Finn and Jake for destroying his rocket.
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: George Takei
- And Now You Must Marry Me: In 'Lady and Peebles", he tells Princess Bubblegum that he wants to be "united as man and wife" with her.
- Art Evolution: Compare his appearance◊ in season 1's "Ricardio the Heart Guy" to his return◊ in season 4's "Lady and Peebles".
- Ax-Crazy: And how, he is much more crazy and deranged than the Ice King.
- Beat Still, My Heart: His existence in a nutshell.
- Big Ol' Eyebrows: Has these despite being an internal organ.
- Break the Haughty: In "Lady and Peebles".
- Evil Is Visceral: He's a living heart, for starters.
- Evil Sounds Deep: Given who's he's voiced by, it's to be expected.
- Eviler Than Thou: He's eviler than the Ice King. Which isn't that hard, but he's still pretty scary.
- Faux Affably Evil: Puts up a charming front, but is anything but.
- Feigning Intelligence:
- 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 "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!
- He's not as smart as he likes to think. This is pointed out by Princess Bubblegum when he holds her hostage:
- Glass Cannon: His new body is strong enough to tie Lady Rainicorn in a knot, but his soft spots were still exposed.
- Gross-Up Close-Up: A particularly memorable example of this trope when he reveals his plans:Ricardio: Now I'm going to cut out Princess Bubblegum's heart [close up◊] and make out with it.
- Happens again in "Lady & Peebles". Might want to change your pants afterward◊.
- Nonstandard Character Design: Has a more detailed face than other characters.
- Punny Name: Get it? Cardio.
- Smug Snake: See Feigning Intelligence.
- Villain with Good Publicity: In his debut episode.
- We Will Meet Again: And he made good on his word.
- Wrong Genre Savvy: When building his new body, he failed to realize a major flaw: leaving the heart exposed.
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
- Art Evolution: Her second appearances gave more details to her eyes rather then the black dots she had before. This allowed for better expressions.
- Ax-Crazy: She randomly starts attacking her own familiar when she was in a good mood. Really says something when Marcie's not foolhardy enough to confront Maja on her own and asks Bubblegum to help her.
- Bad Boss: Sends her familiar to keep Marcie distracted which resulted in him getting beat up. 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.
- Chekhov's Gunman: She was the witch that Ash mentioned selling Hambo to.
- Dark Lord on Life Support: She's rendered comatose from the battle in "Something Big", and the Ancient Psychic Tandem War Elephant decides to take care of her. They both reappear in "Flute Spell", probably more than a year later, and Maja hasn't woken up; the Elephant states she may be like that for the rest of her life.
- Eldritch Location: Her home doesn't obey conventional rules of space.
- Emotion Eater: Her magic runs on sentimental value and caring. Thus she to takes over the Candy Kingdom for this purpose.
- Even Evil Has Standards: When summoning Darren, she tries to reign him back on outright destroying the Candy Kingdom since she needs Bubblegum for her plans. He doesn't listen and nearly killed Peebo, and Maja actually looked quite horrified he was about to go through with it.
- Evil Is Hammy: Big time.
- Jerkass Has a Point: 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 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.
- Knight of Cerebus: Next to The Lich and Ice Queen, she's one of the few threats on the show taken completely seriously. Marceline wasn't willing to confront her without Bubblegum's help and her attack on the Candy Kingdom put the whole kingdom on the defensive, even claiming the life of Root Beer Guy.
- Manipulative Bastard: 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!"
- Not Quite Dead: Gets knocked into a tree after being blasted by the Tandem War Elephant which knocks her into a coma. Ironically said war elephant is the one who helps her later.
- Prim and Proper Bun: Oddly enough.
- Psycho Electro: Abusing her familiar with electricity for little to no reason.
- Voice of the Legion: Constantly talks in reverberating, demonic like tone.
- Weather Manipulation: She's able to generate wind and lightning.
- Wicked Witch: Is she ever, and she did it all to get a shirt.
Ancient Psychic Tandem War Elephant
- Voiced by: Steve Agee
- A Head at Each End
- Desperately Looking for a Purpose in Life: After the events of "Something Big".
- Bad Ass: Is the only thing that can face Darren the giant tree monster in a fight.
- Psychic Powers
- Put on a Bus: After his first appearance in "The Limit", he doesn't appear again until "Furniture & Meat".
- Time Abyss: It's been around for as long as Darren.
King of Ooo
Claims to be the king of Ooo. Legally able to perform marriages. Deposed at the end of "The Dark Cloud".
- Voiced by: Andy Daly
- Authority in Name Only: He doesn't seem to wield any real power at all. Until he manages to usurp Princess Bubblegum's place in "Hot Diggity Doom".
- 100% Adoration Rating: Seems to be the sole reason why people recognize his authority. He says he rules Ooo, and they all believe him. One of Bubblegum's goals is to prove that this is total bullshit.
- Bizarre Alien Biology: According to Word of God, he's made entirely out of earwax.
- Confirmed in "The Dark Cloud", when Crunchy throws him into the fireplace and he melts into a yellow-brown glob.
- The Caligula: When he's become ruler of the Candy Kingdom via an election/coup the whole kingdom goes into chaos because of his total incompetence/inaction of being a ruler. The giant comet in the sky certainly sped things along, but there were signs of dissent even before the comet showed up.
- Crossdresser: After replacing Bubblegum as the Candy Kingdom ruler, he starts calling himself the "One True Princess", and not only wears dresses and feminine clothes, but also wears Bubblegum's old clothes.
- Cult: It's implied that he runs one.
- Everyone Calls Him "Barkeep": Everyone Calls Him the King of Ooo
- God Emperor: Claims that the sun belongs to him.
- Large Ham
- Laser-Guided Karma: At the end of "Stakes" the Candy People finally turn against him for being a horrible ruler. The Banana Guards rebel against him and then Crunchy throws him into a fire place.
- Mugging the Monster: 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 his mind exposed to nightmarish Things Man Was Not Meant to Know.
- Screw This, I'm Outta Here!: 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.
- She Is the King: Inverted; at the end of season 6, he becomes the new princess of the Candy Kingdom.
- The Sociopath: While not as noticed by fans like other examples, he fulfills pretty much all of the requirements to count as one. He shows a Lack of Empathy (willing to enslave, or apparently even kill a baby), and Imperviousness to Shame (well, he thought he may be a bad ruler for a moment, but a moment later decided it's all Bubblegum's fault); he's a Consummate Liar and Manipulator; has a Grandiose Sense of Self-Worth, apparently genuinely believing he should indeed rule all of Ooo.
- Tyrant Takes the Helm: When he becomes princess of the Candy Kingdom in Bubblegum's place, he makes everyone miss PB.
- Villain with Good Publicity: He's a conman and fraud who only cares about himself and yet everyone in Ooo seems to think he should be in charge, much to PB's chagrin.
- Would Hurt a Child: Shows no hesitation in "taking care" of Sweet P when he finds out his plan.
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.
- Absurdly Sharp Blade: Sharp enough to slice through metal, and incredibly precise.
- Adaptive Ability: 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.
- Ambiguously Evil: 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.
- Audible Sharpness: Rings like a bell when swung.
- Cool Sword: A tachi made of grass that's supernaturally sharp and deft.
- Empathic Weapon: It responds to Finn's will, retracting to wrap around his arm when not in use. It also seems to possess some concern for Finn's safety, slapping him awake when he's unconscious in the ocean. It also destroys the Fear Feaster as he antagonizes Finn.
- Evil Weapon: Implicitly, but Finn manages to keep it under his control.
- Improbable Fencing Skills: Remarkably agile and the blade itself is flexible. It tends to carve solid objects into busts of Finn's head that themselves fall into separate pieces (i.e. the face and eyeholes slide out).
- Living Weapon: Definitely alive, and possessing some level of sapience.
- Only Mostly Dead: In the season six premier, it's reduced to a flower on Finn's arm. A few episodes later, it regrows Finn's arm and is reduced to a thorn in the process. In the season finale, it grows back again, fusing with his regrown arm.
- Stealth Pun: Hardly "stealth" since it's the name of its introductory episode, but it's literally a blade of grass.
- Talk to the Fist: Or blade, rather. It manages to slice through the Fear Feaster, much to his surprise, possibly without Finn commanding it to.
A tiny cat-like assassin that attempts to kill Wildberry Princess in "Jake vs. Me-Mow". She reappears much later in "Angel Face", having become a Bounty Hunter and grown much larger.
Voiced by: Kyla Rae Kowalewski
- Badass Adorable: Don't let her size fool you; she's quite deadly.
- Bounty Hunter: Resorts to hunting bounties after getting kicked out of the assassin guild.
- Cats Are Mean: Given that she's an assassin, she qualifies.
- Character Aged with the Actor: Me-Mow's ridiculous growth-spurt was probably inspired by her voice actress growing from about 10 to 14 between appearances.
- Cute Is Evil: She's rather ruthless for someone so small.
- Fan-Art: How she started out.
- Hazy Feel Turn: Goes from a Professional Killer to a Bounty Hunter. Despite the latter not being inherently illegal, she's still plenty evil, and wants revenge against Finn and Jake.
- I Got Bigger: She was originally shorter than Finn's knee. When she finally appeared again in "Angel Face", she's taller than Finn.
- Killer Rabbit: Hard to believe that this little critter is a coldblooded assassin.
- Master Poisoner: Relied on on poison when she was an assassin, because that's nearly the only way she could kill anyone.
- Manipulative Bastard: Forces Jake into killing Wildberry Princess for her under pain of death.
- Not Quite Dead: Appeared to have fallen to her death, but was shown to have survived.
- Orifice Invasion: She was small enough to crawl inside people's bodies and attack from the inside.
- Poison-and-Cure Gambit: Tries this on Jake (see Manipulative Bastard).
- Prehensile Tail: She's more than able to hold onto a branch with just her tail, or use it as another fist.
- Professional Killer: She was a second-class member of the assassins' guild, but was kicked out when she failed her full membership test.
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
- Affectionate Nickname: He calls Marceline "Mar-mar".
- Cute Little Fangs: They're a bit more rounded than most examples, though.
- Does Not Like Shoes: Goes barefoot.
- Domestic Abuser: Of the emotional variety. He treats Marcie more like an object that should be his rather then a person.
- Eye Scream: Goes blind while he is beat up as he says "Ohh...I can't see...".
- Fantastic Racism: He hates Marceline hanging out with "mere mortals".
- Giant Foot of Stomping: Is the victim of one, eventually.
- Squashed Flat: At the end of his introduction episode.
- Groin Attack: Also gets one of these.
- Hoist by His Own Petard: 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.
- Kick the Son of a Bitch: In Betty 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.
- Lack of Empathy: Doesn't care about how his actions hurt Marceline, despite it being blatantly obvious they do.
- Large Ham: Just listen to him describing the sandwich he wants.
- Manipulative Bastard: Tricks Finn and Jake into going into Marcie's mind and getting the bad memory of him just to claim Marcie as his own.
- Magical Incantation: His flight spell."Ashicus Flyicus"
- Never My Fault: Never thinks that Marceline breaking up with him might have been his fault for selling her most prized possession.
- No-Holds-Barred Beatdown: Gets one at the end of his episode and it was richly deserved.
- Small Name, Big Ego: If the whole "You're not a Genius" bit is anything to go by.
- Stay in the Kitchen: His demanding that Marceline make him a sandwich is what finally pushes her to retaliate against him.
- Straw Misogynist: Darn near parody levels of this. See directly above.
The off kilter leader of the Destiny Gang, a group of criminals in Finn's alternate wished universe.
- Voiced by: James Kyson
- Bad Boss: It's obvious that his henchmen are pretty terrified by him.
- Jerkass: Big time.
- Large Ham: He's pretty bombastic.
- Offscreen Teleportation: Used and lampshaded."Yeah! How did I even get here, son?"
- Sinister Shades: Those evil-looking sunglasses should be a pretty big giveaway that Big Destiny's not a good guy.
- The Social Darwinist: 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.
- Zettai Ryouiki: Rare Male Example. He appears to be sporting a Grade B.
The Duke of Nuts
The Duke of NutsThe 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.
- Chuck Cunningham Syndrome: Hasn't appeared or been referred to since the first season. Probably because he's just too nice a guy to be that interesting, and because Princess Bubblegum having an irrational and emotional grudge against him shows her to be flawed in a very different way to the one which they would later explore.
- Happily Married: His wife quickly jumps to his defense in the pudding case. Also, he 'lies with her' often.
- Nice Guy: Ridiculously nice. Almost obscenely nice. Hell, he was willing to take the fall for Finn even though he was totally innocent.
- Poke the Poodle: About the only thing he's ever done wrong is eat all of Bubblegum's pudding.
- Quirky Household: 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.
- Sitcom Arch-Nemesis: To Princess Bubblegum, who despises him solely because he ate all of her pudding once.
- Sweet Tooth: He loves him some pudding.
- Trademark Favorite Food: Pudding.
A talented horse named James Baxter which is all that he can say. He spreads joy throughout the land.
- Voiced by: James Baxter
- Animation Bump: James Baxter moves more fluidly than the other characters, courtesy of guest animator James Baxter.
- Creator Cameo: James Baxter is the name of a guest animator in his episode "James Baxter the Horse", and he also provides the voice.
- Fun Personified: He spends his time performing for other people (read: running around balancing on top of an inflatable ball), taking their worries away.
- Pokémon Speak: All he can say is his own name.
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: Riki Lindhome
- Ambiguously Brown: Might be Latina, judging by the lyrics to her song.
- Genius Loci: She's a living island.
- Nice Girl: She provides a place for Ice King to stay and sings for him.
- Platonic Life Partners: While the Ice King lives with her. One of his few genuine friendships.
- Weak-Willed: She can't bring herself to break up with the Party God even though she really wants him gone.
- You Are Better Than You Think You Are: 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.
Moseph "Moe" Maestro GiovanniThe 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
- Cool Old Guy: We're talking about the guy who built BMO!
- Genius Cripple: Can't use his legs and requires his robots to carry him and for life support.
- Killed Off for Real
- Nice Guy
- Transhuman: When asked by Finn if he was human, he answered "My skin is human," implying that he has survived since the Great Mushroom War as a Cyborg.
Voiced by: Erik EstradaA giant worm that absorbs one's life force through their dreams.
- A Glitch in the Matrix: Has a great power into putting people in their dreams, but said dreams tend to be very off to keep his target prisoner.
- Dream Weaver: His bread and butter.
- Early-Bird Cameo: Showed up at the end of Evicted in the first season before getting his own episode in season 4.
- Lotus-Eater Machine: He is one. He tries to put his victims into a nice or normal setting while he sucks their life energy.
- Poke the Poodle: In his first appearance, he hypnotizes Finn and Jake to hug him.
- Your Worst Nightmare: Imagining them is the key to defeating him.
A serious hitman with powers over fire.
- Assassin Outclassin': 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 Powered Armor, leaving the small guy inside to run away in fear.
- Expy: Possibly one of Combustion Man, what with the whole "stoic voiceless fire based assassin" thing.
- Fireball Eyeballs: When he gets mad.
- Foil: Hyper-competent fire elemental to counter Ice King's inept ice magic.
- Just Following Orders: Implied, though maybe he just likes to kill
- Knight of Cerebus: 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 Straight Man to Ice King, who treats him as if he's an old friend of his.
- Playing with Fire: Obviously.
- Professional Killer: He is a hitman.
- Red Eyes, Take Warning: Red eyes, meaning he has fire power.
- Super Smoke: He has the ability to turn into a black smoke.
- The Voiceless: He never talks.
- Voiced by: Noah Nelson
- Blood Magic: His power comes from his blood and the blood he drains from others. Finn uses this to trick him into killing himself.
- Hoist by His Own Petard: Finn kills him by exploiting his method of Blood Magic to trick him into inhaling blessed grape juice.
- Holy Burns Evil: Is injured and weakened by holy water. Finn kills him by tricking him into absorbing blessed grape juice.
- Killed Off for Real: At the end of "The Pit" he's gone for good. He wasn't sealed into anything this time..
- Oh Crap!: Upon realizing that he just inhaled blessed grape juice.
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, and they're still around, awoken by PB, Finn, Jake and James.
- Always Chaotic Evil: Their presence is evil enough to cause the Gumball Guardians to awaken.
- Body Horror: 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.
- Nuclear Nasty
- Really 700 Years Old: They've survived to the present day, and many have escaped from the crater they were buried in.
- Sickly Green Glow: Their ooze.
- Was Once a Man: They appear to be mutated humans, given their presence in the city.
- The appearance of James-like ooze monster seems to confirm this.
- Zombie Apocalypse: They appear to spread their affliction to those they attack. Including Candy People.
- Not Using the Z Word: They are never once referred as zombies. Understandable, since the show has already introduced a totally different kind of zombie in Slumber Party Panic.
Farmworld Finn/Ice Finn
Finn's counterpart in the "Farmworld" universe created from a wish made to attempt to stop the Lich.
- Voiced by: Jeremy Shada
- Alternate Self: Of Finn the Human. Duh.
- Anti-Villain: He becomes the new Ice King and starts freezing everyone on Earth because he thinks that's protecting them.
- An Ice Person: He puts on the Ice King's crown and uses its power.
- Artificial Limbs: Has a crude mechanical right arm.
- Classical Anti-Hero: Compared to main world Finn, he's a lot less respected, and his initial goals are mostly on protecting his family.
- The Bus Came Back: "Cross Over" reveals that the Farmwold was not erased by Jake's wish, it continued to exist in parallel with other realities. Our Finn, with Prismo's help, travels to the alternate timeline and exorcises both the Lich and the ice crown.
- Does Not Like Shoes: Never seen wearing shoes. Possibly also an example of Barefoot Poverty.
- Gonk:Jake: Man, Alternate Wish-World Finn is mad uglies!
- The Noseless: Inverted. His most significant feature from the regular Finn is that Finn's nose, like most of Ooo's, isn't visible.
- Unwitting Pawn: The Lich of his world tricks him into a plan to destroy every timeline, which Ice Finn falls for because he's too insane to see how Obviously Evil he is.
- With Great Power Comes Great Insanity: Ice King's crown drives him very crazy, very fast.
- Voiced by Maurice LaMarche
- Anti-Magic: A being purely composed of it.
- Bilingual Bonus: His name is a mix of "Bella" italian for "beautiful", and "Noche", spanish for "night". Strangely, despite being male, the feminne "Bella" is used rather than the masculine "Bello"
- Bishonen Line: His regular form is a massive face made out of moss while his "true" form is a beautiful, androgynous humanoid.
- Crippling Overspecialization: His Anti-Magic powers mean that no wizard can hope to harm him. However, he doesn't have any other abilities, so a normal human like Betty can just cold-cock him with little effort.
- Power Nullifier: He can strip magical beings and objects of their power.
- Sinister Geometry: A massive black cube surrounds him. A failed attempt to destroy it makes it grow into more complex shapes.
- Voiced by Mark Proksch
- Voiced by Creed Bratton
- Cool Old Guy: 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.
- Order Versus Chaos: 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.
- Red Oni, Blue Oni: 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.
- Theme Initials: Compare "Phlannel Boxingday" with "Princess Bubblegum".
- Voiced by Ako Castuera
- Action Girl: She was a partner in some of Billy's adventures.
- Battle Couple: This is pretty much how she described her relationship with Billy.
- Biker Babe: 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.
- Green-Skinned Space Babe: Well, green-ish. With pointed ears for extra alien-ness.
- Manic Pixie Dream Girl: The "pixie" part is debateable, given her size, but there are indications that she was this to Billy. And maybe, momentarily, for Finn.
- Mayfly-December Romance: In her flashbacks, Billy looks much younger, but Canyon hasn't visibly aged at all.
- Statuesque Stunner: She's 20 feet tall and gorgeous.
A strange monster that Joshua and Margaret encounter during one of their investigations. Has only appeared in "Joshua and Margaret Investigates" so far.
- Aliens Are Bastards: Threatens a pregnant lady, 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.
- Alien Blood: It bleeds bright green blood after Margaret pricks it with a pin.
- Disappeared Dad / Missing Mom: Assuming gender even applies, it's one of these to its child 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.
- Eldritch Abomination/Starfish Aliens: Which one is unclear because we can't quite tell if its origins are extraterrestrial or extra-dimensional. Regardless, assuming the last form it takes◊ in the episode is its true form, it's one of the most bizarre beings in the series.
- Face Full of Alien Wing-Wong: Inflicted this on Joshua, with Jake being the result.
- Superpowerful Genetics: Passed on its powers and some of its physical traits to its son Jake and his children.
- Voluntary Shapeshifter: 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.
- Walking Spoiler: It's Jake's parent.
- Wounded Gazelle Gambit: Took on the form of a baby when Margaret had it cornered. Margaret (apologetically) punched it out anyway.
A man who hunts monsters and is very paranoid about dark magic.
Voiced by: Rainn Wilson
- Arch-Enemy: To Peppermint Butler.
- Butt Monkey: When it comes to his own children, he really has it rough. Taken to unfunny levels once he loses to Peppermint Butler, and is still being hunted as a felon by Princess Bubblegum
- Cool Hat: Just look at that thing! It's even a...
- Bag of Holding: His hat is a portal to a flesh-destroying void dimension. It very nearly gets rid of Peppermint Butler
- Overprotective Dad: He is very concerned about his childrens fascination with magic, blaming said fascination on his paranoia of dark magic.
- Voiced by Tom Kenny
- An Ice Person: The original one on Earth/Ooo
- Elemental Embodiment: He is the elemental of ice.
- Good Is Not Nice: Despite being an arrogant, weapons-grade Jerk Ass and extremist, he is genuinely trying to save the world from mass destruction.
- Heel Realization: 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.
- Ironic Name: "Evergreen" is the kind of name you'd expect someone with a Green Thumb to have, not ice powers.
- Meaningful Name: Evergreen trees thrive in cold, northern climates.
- Jerk Ass: 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.
- Voiced by Pamela Adlon
- An Ice Person: Becomes the original Ice King after making his wish on the crown
- Ghost in the Machine: His mind lives on inside of the crown, along with everyone else who's ever worn it, including Simon and the original Santa Claus.
- Hero-Worshipper / Undying Loyalty: 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 it overpowers his desire to save the world, turning him into the first Ice King and allowing the comet to destroy all life.
- Madness Mantra: After wishing to become more like Evergreen. Gunther, no! Gunther, no! Gunther, no! Gunther, no...
- One Steve Limit
- Uplifted Animal: Gained intelligence and speech when Evergreen mutated him in the egg.
- With Great Power Comes Great Insanity: 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.
Breezy the Bee
- Voiced by Ashly Burch
- Action Girl: Post transformation.
- Adorkable: Seems to share many aspects with Finn, including getting very nervous when in a more emotional situation.
- Interspecies Romance: 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. 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.
- Jerk with a Heart of Gold: Only wants to help Finn to keep the flower alive, but grows out it as she spends more time with Finn.
- The Power of Love: 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.
- Psychic Powers: In her Queen Bee form, though it isn't certain whether this only extends to other bees or not.
- Rebellious Princess: 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. She eventually gets over this for Finn's sake.
- She's Got Legs: In her Queen form, she has a shapely waist and legs after getting her new body. Justified in that, much like real bees she has pollen sacs in her legs (though hers look more like belt pockets.
- Transformation Sequence: 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.
- Walking Spoiler: Wouldn't expect that out of a simple bee would you?
- Wingman: What she becomes to Finn after they first meet.
- Voiced by: Thurop Van Orman
- Chaste Hero: 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.
- Does This Remind You of Anything?: 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.
- The Hero: to the little people living in the tree.
- Maybe Magic, Maybe Mundane: 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.
- Sorting Algorithm of Mortality: Lampshades that he has no real sense of mortality, and slides between areas 1 and 2 of the scale.
- Troll/Troubling Unchildlike Behavior: 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.
- Voiced by: James Urbaniak
- Creepy Monotone: A high, but eerily calm and soothing tone...it almost never breaks unless he's attacking or being directly hit.
- Karma Houdini: 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.
- My Species Doth Protest Too Much: 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.
- Nothing Is Scarier: 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.
- Power Parasite: He seems to have gotten his power from leeching off the Tree House itself, judging by his first scene.
- Red Eyes, Take Warning
- Shout-Out: His Head-on-a-Cape form is similar to Nightmare, just like Kert is to Kirby.
- Swarm of Rats: His second form, which also means that He's Nigh Invulnerable to blows to his body.
- Truth in Television: Rat Kings are a real kind of monster from Medieval times (mostly around the time of the infamous Black Death epidemic, and becoming less frequently reported as time went on) created when poo managed to fuse groups of Rats into a knotty clump by the tail. They were considered horrible omens, and real-life examples of them can be found in British Museums.
- We Can Rule Together: offers this to Kent, who of course refuses.
- The Worm That Walks: his second form, which for added creepiness, is usually encased in shadow unless some form of light is brought directly to it.
- You Dirty Rat: a more menacing version than most though.
- Black Cloak
- Just a Stupid Accent: Has an Indian accent.
- Mineral Macguffin: The "unbreakable ore" which in reality is just a bottle cap.
- Secret Test of Character: Offers The crystals in his room to Kent offering him the chance to live out his days in comfort, he's briefly entranced, but states that he didn't resist greed so much as he doesn't care about money. Rat Wizard thinks its weird but gives him the Ore anyway.
Rat KnightA 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.
- Just a Stupid Accent: British accented
- Knight in Shining Armor: Doesn't fight Kent because at the time Kent had no sword to fight with, and instead does his Secret Test of Character.
- Totally Radical: says "Yo' Holmes that's Cold" when Kent states he doesn't care about love.
- Secret Test of Character: offers the hand of one of his daughters to Kent as his.
Ninja RatA mysterious and to-the-point Rat wearing Ninja garb. he protects the Sacred Flame (a blue firefly).
- The Stoic
- Gratuitous Ninja: possibly, seeing as the other two guardians are more classical in tone (a wizard and a knight)
- One Of These Things Is Not Like The Others: 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.
- Maybe Magic, Maybe Mundane: 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.
A traveling puppeteer, who it turns out isn't really using puppets, but a couple of imps who have possessed his ears.
- The Barnum: He's not looking for customers to scam money out of, but rather, an unwitting patsy to pass off his curse to via moon ritual.
- My God, What Have I Done?: He realizes how much he misses Chips and Ice Cream after being free of them for a day and running into them. He tries to secretly redo the ritual from outside the window of Finn and Jake's house, except that it was all a Batman Gambit on BMO's part to free the two imps.
Chips and Ice Cream
- Voiced by Kate Micucci (Chips) and Riki Lindhome (Ice Cream)
- Curse: They possess the ears of the cursed human. The only known way to undo the curse is to pass it on via moonlight ritual in the presence of the intended target.
- Curse Escape Clause: Intercepting the imps while in the transportation phase of the ritual and capturing them in a container, then setting them free.
- Humble Goal: As hinted by the play and revealed in the end, to be free and encounter a bird.
- I Just Want to Be Free: They both want to roam free.
- Pokémon Speak: They communicate purely via intonation, only being able to say their own names.
- Voiced by: Rebecca Sugar
- Ambiguously Brown
- Creator Cameo: Voiced by Rebecca Sugar, an ex-storyboard artist responsible for much of Marceline's development.
- Interspecies Romance: Had one with Hunson Abadeer at some point.
- No Name Given: We're never told her name, and we only know that she's Marceline's mother from the conversation she was having with her.
- Posthumous Character: Likely dead due to how far off into the future the series is. She only shows up briefly in a flashback.
- The Unreveal: "And that's the story of how I met your dad." are the first words we hear from her on the subject, and to date, the only ones.
The main antagonists of the "Stakes" mini series. Sometime after the Mushroom Wars they preyed upon the last of the human survivors. Marceline opposed them to protect her newfound friends. Though in the process due to her soul sucking powers, gained their abilities as a result after killing them. In the final battle against the king, he bit her and changed her into part vampire to ensure his kind live on.
- Divided We Fall: When they were revived, Empress, Hierophant and Moon disagreed with the Vampire King on how to continue their kingdom and went their separate ways.
- Last of His Kind: Marceline had all but wiped them out so in in turn, the vampire king turned her into a vampire to make sure his kind still lived on.
- Our Vampires Are Different: Each have their own unique abilities and features.
- Sealed Inside a Person-Shaped Can: All of their vampire essence is contained within Marceline after she defeated them. So when Bubblegum used her machine to turn her back into a regular half-human demon, the black goop that was her vampire essence allowed them to escape and revive, kicking off the mini-series.
- Tarot Motifs: Their names reference four of the Major Arcana. They're all meaningful in some way to their characterization and their respective cards' inverted positions can be related to their downfall.
- The Empress represents beauty, femininity and abundance; she is the most traditionally feminine of the group, the most irate about the decadent standards they used to have and is regarded as highly beautiful by Ice King. Inverted it represents a dependence on others, something exemplified by her MO of enthralling people to serve her. Ultimately she is defeated when the I Work Alone Marceline receives some much needed assistance from her friends after the Empress abandons Ice King.
- The Fool represents innocence, spontaneity, and free-spiritedness; The Fool himself acts like an incautious, carefree child. The reverse position can reference a disregard to obvious dangers, befitting the Fool's Too Dumb to Live personality. Marceline herself acts very fooldhardy when she elects to go after all the vampires by herself, starting with the Vampire King first before being distracted with the threat of the Empress against Ice King.
- The Hierophant represents institutional wisdom, religious teaching, and traditional belief systems; this one is the most traditional vampire, beholden to the old ways such as Vampire Invitation. Jake meanwhile completely relapses into his intense vampire phobia. In a reversed position it indicates a downfall by an inability to adapt, with the Hierophant being very slow and irate about technology and ultimately destroyed by his upholding to old vampire standards.
- The Moon represents dreams, deception, and illusions; she is found sleeping, looking deceptively harmless with some ambiguity regarding how much of her abilities are being deceptively hidden, poetically described or literally explained. There is a lot of dreaming by Marceline in her episode. Reversed it represents confusion, regarding the Poor Communication Kills that also occurs in her episode, and everyone's baffled fear regarding her.
- You Kill It, You Bought It: Sort of, when Marcy killed them she sucked in their souls which granted her their abilities. Though it's implied if she didn't, they would reform eventually. In a more straightforward manner, killing the Vampire King is what made her the Vampire Queen.
The Vampire King
Voiced by: Billy Brown
- Arch-Enemy: To Marceline, even called such in the episode description.
- Berserk Button: The only time he really gets mad is when the Hierophant suggests they go back to the old-fashioned way. He almost crushes him with telekinesis as he points out their old way of doing things lead to their extinction.
- Defector from Decadence: Part of the reason he lets his group disband. Their old way of doing things as a horde lead to their extinction. He's partially irritated at the Empress' suggestion they get back to their old standards like blood with gold-flecks in it, as it didn't add any flavor.
- Humble Goal: Before coming Back from the Dead he just seems concerned with making sure his species would continue to exist. He was fine with dying so long as Marceline would be the last vampire in his place.
- King of Beasts: A lion and Vampire Monarch.
- Large and in Charge: Largest vampire in the group.
- Man of Wealth and Taste: Wears a fine looking white suit.
- Mind over Matter: Demonstrates telekinetic abilities.
- Mix-and-Match Critters: A large vampire with the head of a lion, lizard-like claws for hands, and bird talons for feet.
- Not So Above It All: Despite being a stoic and imposing Vampire Monarch who everyone sees as the Big Bad, he has a few silly moments such as his unflinching Helium Speech after being kicked in the groin and when his grand speech leads to him splashing around in water wearing only briefs. In the case of the latter, he becomes so consumed Chewing the Scenery that Marceline has to shout at him and remind him what they were talking about beforehand.
- Odd Name Out: The Vampire King is the only vampire not directly named after a Tarot card, though his name is analogous to The Emperor, while his slightly more monstrous design and desire to escape the chains of fate and the endless cycle of fighting, death and rebirth that comes from being a vampire evokes The Devil card. His grandiose speech also name drops Wheel of Fortune and The Chariot.
- Pocket Dimension: Through unknown means created an invisible space that filters out sunlight.
- Raising the Steaks: He is a lion that was turned into a vampire.
- Reasonable Authority Figure: Unlike most vampire villains he's a very calm and reasonable person. He spends his fights with Marceline trying to sincerely reason with her and exhibits none of the sadism typical of vampire big bads. He isn't even a Bad Boss, simply letting his group disband on their own separate ways when their differences prove irreconcilable.
- Token Good Teammate: The Vampire King is the only vampire before Marceline who is, if not outright good, at least very thoughtful and pragmatic. He only considers drinking blood as a means of subsistence, not something to indulge in, and doesn't speak condescendingly of their victims. Once he discovers there's a way to stop being a vampire, he decides to use it.
- Uplifted Animal: He was apparently a non-sapient animal before becoming a vampire. And appears to go back when he stops being one.
- Vampire Monarch: The Vampire King
- Vegetarian Vampire: After resurrection, he elects to eat only animals like everyone else.
- Villain Teleportation: Disappears and reappears elsewhere.
Voiced by: Rebecca Romijn
- All-Encompassing Mantle: Has a veil covers her eyes until she needs to hypnotize someone.
- Hypnotic Eyes: Has these when she pulls pack her hair.
- Invisibility: One of the powers she possesses and the main power Marceline gains from her when she's defeated.
- Of Corsets Sexy: Uses a golden snake as a corset.
- You Have Failed Me: Once she realizes Ice King wasn't really controlled by her powers, she pretty much disowned him as she found he was too stupid for a servant.
Voiced by: Ron Funches
- Does Not Like Shoes: Completely barefoot.
- Flight: His main power and what Marceline gains from him when he's defeated. He spends all his time off the ground.
- The Imp: He's practically non-malicious. All he does is float around cracking jokes, treating everything like a game.
- Too Dumb to Live: Not exactly one for self preservation. Both times, he's the first one to get staked because he doesn't bother to protect himself.
- Undying Loyalty: The only one not to abandon the Vampire King when the others disbanded.
Voiced by: Paul Williams
- The Dragon: Although he defects from the Vampire King, he is ostensibly the most dangerous vampire aside from him and is the second-to-last vampire Marceline fought in her flashback. His One-Winged Angel form also nearly killed Marceline with its scorpion venom.
- Full-Boar Action: He changes into a vicious-looking wild boar more than once.
- Good Old Ways: Hierophant left the Vampire King because he refused to go back to the old ways of vampirisim. Although he still follows Adventure Time rules, taking this attitude to silly extremes ("What is all this tacky plastic rubbish?!") and peppering his speech with odd bits of slang despite being "old-fashioned".
- Hoist by His Own Petard: He's incredibly proud about following the Good Old Ways...and ends up disintegrating when he's accidentally knocked into a house-shaped Jake without being invited in.
- Horned Humanoid: Has flesh-colored horns in his default form.
- Magic Pants: Can completely shift his clothes around as well with the specific exception of his boots.
- Morphic Resonance: He can't lose his mustache...or boots, for whatever reason.
- Must Be Invited: The only example of this among the vampires, for some reason. Pep But calls him an "old-timey Revenant", implying that there are different subspecies of vampires with different rules.
- One-Winged Angel: Turns into a horrifying amalgam of animal parts when fighting the crew.
- The Starscream: After all the vampires go their separate ways, Hierophant is the only one to actually plot against the Vampire King.
- Voluntary Shapeshifting: His main power and what Marceline gains from him when he's defeated. He mostly uses it for weapons if not disguising himself.
Voiced by: Beau Billingslea
- Evil Sounds Deep: When she finally does speak, it's a very deep demonic voice.
- Lunacy: Her name aside she implies that her power is connected to the moon but it's ambiguous if she was being literal or poetic. There is some credence to in vampire lore (the title character of The Vampyre was another Daywalking Vampire who was simply stronger in moonlight) but it's pretty obscure.
- Nigh-Invulnerability: Completely hard to kill, Finn and Jake stake her several times while she's sleeping and even drag her out into the sunlight. Nothing works. She only goes down because Peppermint Butler manages to incapacitate her with a tree trunk-sized stake to the back; Marceline actually absorbs her while she's still alive.
- Good Thing You Can Heal: Her main power and what Marceline gains from her when she's defeated, she has very strong healing. The Fool refers to her as a "reverse-egg" because a simple crash on the head completely caves it in before her healing restores her. Even dragging her into the sunlight doesn't do anything.
- Just Toying with Them: Finn notices when she's chasing after Jake and him that she doesn't really seem to be picking up speed and comes to the conclusion she's just messing with them.
- Refuge in Audacity: Unlocks a safe just by repeatedly yelling the word "pigs".
- Stringy-Haired Ghost Girl: A dead ringer for one, except with a dark tunic instead of a white kimono.
- The Quiet One: Rarely utters a word while with her company. It's isn't until she's chasing Finn and Jake that she finally speaks.
- Unusual Ears: A single bat-like one in the middle of her forehead. Marceline described her as having "a head like a garden trowel".
- Who's on First?: PB instructs them to "[guys] take her back" to Peppermint Butler's poison lab but they mishear it as "stake her back" which is completely ineffectual. Turns out that Peppermint Butler staking her back with a large enough stake was enough to immobilize so Marceline could suck up her essence.
A group of mysterious children with black eyes.
The prototype to BMO, who was designed to receive love rather than give it.
- Bottomless Magazines: Equipped himself with a weapon that materializes cannonballs out of thin air.
- Disney Villain Death: Knocked off a cliff from the recoil of his weapon when BMO grabbed it.
- Killer Robot: Essentially what he became.
- Psycho Prototype: He was a MO designed with a complex motive of love before BMO, but he became a Yandere.
- Yandere: Oh big time.
An ancient being of destruction awakened by Maja in "Something Big"
- Attack Its Weak Point: "His weakness is his brain seed!"
- Attack of the 50-Foot Whatever: He is easily one of the largest creatures in the show.
- Beneath the Earth
- Blood Knight: In his own words, he only understands destruction, and only fights to the death.
- Death Seeker: His last words are to thank Finn when Finn strikes the blow that kills him.
- Fish Out of Temporal Water: He has no idea what landmarks like the Candy Kingdom are and notes how different the world is since he has been asleep.
- Flunky Boss: He can summon flesh-colored regenerating humanoids from a portal that hatch from eggs.
- Friendly Enemy: He's pleased to see the Psychic Tandem War Elephant, although perhaps only because it's good to see a familiar face in a strange world. That familiarity doesn't get in the way of Darren trying to kill the Elephant at all either.
- When Trees Attack: His mouth even resembles a pine tree.
A gigantic...well, moth that provided milk for the koala people before Martin hijacked it.
The leader of the koala people that Martin takes a liking to.
- Morality Pet: Averted. While Martin seems fond of him, even giving him a nickname, he leaves Martin 2 high and dry when it turns out he was the one the guards were after the whole time.
- Older Than They Look: He turns out to be an old man, which we don't find out until a Gross-Up Close-Up of him.
- Pintsize Powerhouse: He is able to hold his own against several guards many times his size.