History Characters / AdventureTimeOtherCharacters

[[quoteright:1000:https://static.tvtropes.org/pmwiki/pub/images/scrnli_09_10_2023_12_01_12.png]]
[[caption-width-right:1000:...But it still changes]]

* TookALevelInJerkass: He becomes a bitter, depressed drunk by the time of ''Fionna & Cake,'' and he pulls an especially cruel wish on Wyatt for seemingly no reason.

[[caption-width-right:713:”To live by the light of the Founders”]]

A group of human survivors who lived during the early aftermath of the Mushroom War nearly a thousand years prior to the beginning of the series. They would eventually leave the land which would eventually come to be known as Ooo, going on to establish the Islands and its society. They were led by Two Bread Tom, and were able to survive long enough to leave Ooo due in large part to Marceline. The Islands Graphic Novel expanded on their early settlement of Founder’s Island.

A group of human survivors who lived during the early aftermath of the Mushroom War nearly a thousand years prior to the beginning of the series. They would eventually leave the land which would eventually come to be known as Ooo, going on to establish the Islands and its society. They were led by Two Bread Tom, and were able to survive long enough to leave Ooo due in large part to Marceline. As shown in the Stakes mini-series. The Islands Graphic Novel expanded on their early settlement of Founder’s Island.

[[folder:Jo]]
[[quoteright:267:https://static.tvtropes.org/pmwiki/pub/images/bunny_girl.png]]
->'''Voiced by:''' Ava Acres

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

* HumanityIsAdvanced: Their level of technology far surpasses most of Ooo, with the possible expectation of Princess Bubblegum.

** Prismo's boss is represented by a golden cord phone with angel and devil wings and two stars on the back.

[[quoteright:374:https://static.tvtropes.org/pmwiki/pub/images/bossphone.png]]
[[caption-width-right:374:The Boss' phone]]

* HumanityIsAdvanced: Their level of technology far surpasses most of Ooo, with the possible expectation of the Princess Bubblegum.

* RacialRemnant: The only society of non-mutated humans known to still exist in modern times. [[spoiler: Both Finn and Martin originally came from the Islands. The only exceptions shown are those such as Simon, Marceline and Mo who all pre-date the Islands and survived so long via abnormal means.]]

* MyBelovedSmother: When she finds out Finn is alive and came to the Island, she insists he can't leave, even though he has a whole life outside.

* HiddenElfVillage: Highly isolationist and cut-off from the rest of the world since early in its foundation. To the point of creating Seekers and the Guardian to enforce this isolation by preventing any humans from leaving. []spoiler:They cease being this thanks to Finn; as they now allow people to leave and even establish a settlement in Ooo.]]

[[folder:Martin Mertens]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/martinrender.png]]
[[caption-width-right:350:Here comes the rascal!]]
->'''Voiced by:''' Creator/StephenRoot

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

* AlliterativeName: '''M'''artin '''M'''ertens.
* ArchnemesisDad: He's the first person that Finn wanted {{Revenge}} against and got away with it. In result, [[ThePowerOfHate Finn's hatred for him burns so deep]] that Finn can easily sing [[LyricalDissonance a sweet, calming lullaby]] about [[IWillTearYourArmsOff ripping Martin's arm off]] without batting an eye. Eventually, though, Finn let go of the hatred toward his dad and is fairly neutral if not exasperated or confused by him.
* AscendedToAHigherPlaneOfExistence: Takes up the Catalyst Comet's offer to transform him into a "new mode of existence."
* BelievingTheirOwnLies: Martin seems to genuinely think himself a great person, once claiming a run of luck was "the Globs rewarding me for my heroism" when there was no one else around for him to deceive.
* BewareTheSillyOnes: Implied. He's incredibly cheery in his one appearance, and seems incredibly affable, and might even be likable if not for his actions during said first appearance... until you consider that he's in a cosmic prison full of incredible monsters up to and including The Lich, and a group of said monsters instantly accept him as their leader with no argument. And of those criminals, he was the ''only'' one not to be placed under the Lich's control. Whatever he is or however he got there, there's definitely more to him than it seems.
* BrokenPedestal: The apple falls far from the tree, to say the least.
* ConMan: He's been one his entire life and it ''shows''.
* ConsummateLiar: He lies constantly without breaking a sweat.
* CrouchingMoronHiddenBadass: He may be a DirtyCoward and ManChild, but he's just as agile and good at fighting as his son.
* DaddyHadAGoodReasonForAbandoningYou: Played with. [[spoiler:Back then in the Island, Martin didn't intentionally abandon Finn; he took Finn with him while running from people out for blood, planned to escape by circling around the Island in a boat, and was separated after they ran into the Colossus, with Martin still trying to stay with Finn despite FIGHTING the Colossus, and only finally relenting when his only option became fleeing. Still, the situation was caused by Martin's own actions coming back to haunt him.]]
* DarkAndTroubledPast: Implies this in "The Comet" when Finn calls him on his abandonment tendencies, saying that he keeps leaving because he has nothing to return for.
* DirtyCoward: His first instinct is always to save his own (worthless) skin, and only his.
* DisappearedDad: He abandoned Finn when he was a baby. In the Citadel he refuses to give him any real explanation, then abandons him again. He seems to be actively avoiding him for some reason. Turns out ''Islands'' clarifies that [[spoiler:said abandonment occurred in his attempt to save Finn.]]
* DissonantSerenity: Has a rather cheery disposition despite apparently being one of the most dangerous criminals in the universe. He talks in a very casual tone as he is being pursued by the prison guards at the Citadel, shows the barest minimum of pain at a serious injury dealt to his leg, walks up to bad guys (and becomes their new leader) and exchanges pleasantries with them like it was nothing, and gives two notable winks that disarm the people they're aimed at and get them to follow his orders.
* TheDragon: [[spoiler:He acts as an accomplice to [[CorruptCorporateExecutive Hugo's]] plan in "BMO".]]
* EvenEvilHasLovedOnes: Averted or at best Played with. While Martin isn't entirely without affection for his son, Finn, as shown by how the resemblance causes him to warm up to Martin 2, he is only willing to help him when it is convenient for himself. Also, see InLoveWithTheMark.
* FatBastard: He's overweight and a complete deadbeat that has zero desire to reunite with his son.
* FauxAffablyEvil: Despite his cheery disposition, his true motivations are unknown, he's apparently a cosmic criminal, and he'll screw over someone who just helped him out without a second thought.
* FlippingTheBird: On Martin's mugshot picture shown in Scarab's list of cosmic criminals, Martin is flipping both of his middle fingers at the camera.
* TheFogOfAges:
** Martin has memory issues, which he puts down to his incarceration in the Citadel as he had no way of keeping track of time so his recollections are skewed.
** In ''Islands'' [[spoiler: it's implied that ''most'' of Martin's negative traits in the present are due to a head injury he received ''saving'' Finn. In the human colony on the islands he was always a shiftless con man, but he never actually killed anyone. We see him falling in love with Finn's mom Minerva, a doctor, and they genuinely seemed to have a loving relationship in the first months of Finn's life. He apparently fell InLoveWithTheMark, and seems to have been genuinely interested in raising Finn with her. Then he had to bail when enemies from his shifty past caught up with him, and while escaping on a raft the islands' robo-guardian attacked. He bravely left the raft to fend it off while ''explicitly'' promising Finn he'd come back for him, but the resulting explosion knocked him into the sea. 15 odd years later, Martin can't even remember any of his former life very clearly. It's Simon Petrikov/Ice King all over again.]]
* {{Foil}}:
** He and Finn are opposite in personality and even wardrobe. They also have differing philosophies as of the season six finale. Finn grows to believe everything has a purpose while Martin sees the universe as having no purpose (it's unknown if this leans more toward StrawNihilist or AntiNihilist, but given his cheery state and his neutral stance, most likely the latter. See HiddenDepths below for more details.) [[spoiler: Flashbacks in the Islands miniseries furthers demonstrate their differences. Finn has his moments of selfishness while ultimately remaining a good person, while Martin demonstrates moments of heroism before relapsing into his typical ItsAllAboutMe behavior, though it's heavily implied that it was due to suffering brain damage and memory loss.]]
** To Simon. They were both father figures (Actual father in Martin's case) to mostly human people who found their way onto OOO. While Simon was a good person who ended up being turned into a crazed husk of his former self thanks to acts of protection for Marceline, Martin [[spoiler: had some development into a good person coming for him that got interrupted and discarded all together thanks to an act of protection for Finn.]] Their significant others were also central to their development, with Simon finding Evergreen's crown and incidentally starting his path to insanity because he wanted to show it to Betty, and [[spoiler: Minerva being the first person other than himself that Martin cared about and the key to his development into a better person.]] In current times, the Ice King is a powerful but mentally unstable wizard with blue skin and a blue robe, while Martin is a normal if amoral person with a red outfit, [[BlueOniRedOni ironically being the blue oni to Ice King's red oni]]. Also, while Ice King was a recurring enemy early on in the series who developed into an ally and friend to the heroes overtime, Martin [[spoiler: did actively look out for Finn prior to his head injury]], but didn't give Finn any paternal care in the present day, outright tearing his arm off by accident and never offering Finn an apology. [[spoiler: Their fates by the show's end are also opposed, with Martin choosing to become a being higher than mortality and Simon being reverted to his primal state as a normal human being thanks to GOLB.]]
* HateSink:
** Those who were expecting Finn's dad to be a cool guy will be disappointed. And unlike some of the show's other most despicable people who could at least appear cool, Martin is just a fantastical version of the self-absorbed deadbeat dad.
** Subverted in "Islands Part 5" where he's more of a LovableRogue instead of the deadbeat {{jerkass}} we know, and it shows that he genuinely cared about Finn when he was an infant, going as far as to attacking the Colossus to protect Finn and implying that his jerkass side was born out of this moment.
-->'''Martin''': I'll be back for ya.
* HeelFaceDoorSlam: [[spoiler: Martin seemed on his way to becoming a better person during his time with Minerva, even making an honest living as a barber, but after getting separated from Founder's Island and suffering a head injury, he seemed to go back to his old, dishonest ways.]]
* HiddenDepths: While it's not JerkWithAHeartOfGold levels, there is some part of Martin that does genuinely care about people, hence him saving Finn's life in "The Comet". He also was willing to sacrifice himself to offer Martin 2 a chance to escape, but when that didn't go as planned, was content to leave Martin 2 to his fate. He also admits to Finn that talking about Minerva stresses him out, implying that deep down he feels guilt for abandoning his family.
* InLoveWithTheMark:
** Possibly. It's left to audience interpretation whether [[spoiler:Martin fell in love with Minerva or was using her and Finn for free meals and a bed to sleep on.]]
** The name of the small ship he has is "The Minnie," indicating she at least held a place in his thoughts.
* {{Jerkass}}: He cares only for himself and his own immediate benefit, and doesn't even evince much awareness that he could be expected to care about his son or the other people he manipulates.
* JerkWithAHeartOfGold: It turns out there really was a positive side at one point, which he seemed to tragically lose from a couple of things that he actually ''didn't'' have a choice over. This could probably explain him being a KarmaHoudini.
* JerkWithAHeartOfJerk: Every time it seems he might be revealing a positive side to himself, it turns out to be some lie or trick to further benefit himself. He really is ''that'' much of a selfish asshole. Though later on, it's implied that he simply TookALevelInJerkass [[TheFogOfAges when his bad memory made him forget that]] [[LovableRogue he wasn't always like this]].
* KarmaHoudini: [[spoiler:After all he did, he gets to ascend to another mode of existence along with the Catalyst Comet. Though it's later implied to be an unintentional redemption as the kind of person he used to be.]]
* LackOfEmpathy: In "The Visitor", Martin tricks a village of tiny people into helping him (they actually aren't fooled and are just doing him a favor), nonchalantly talking about how taking advantages of them is driving them to starvation.
* ManChild: Finn thinks of him as a child stuck in an adult's body.
* ManipulativeBastard: In his first appearance alone, he cons Finn into helping him escape The Citadel without answering any of his questions. [[spoiler: He outright tells Minerva that [[WoundedGazelleGambit he'd try to look pathetic to get her to save him]] and may or may not have used that exact trick on her just a few minutes later.]]
* MajorInjuryUnderreaction: Martin gets the skin on his right leg sheered off by a laser, all the way down to the bone. Sure enough, he treats it like an injury that needs to be dealt with, but he shows the barest minimum reaction to it; at best saying "this really stings", rather than screaming bloody murder at how painful it is like most people would. Even taking into account the Guardian Blood, that he gets Finn to apply to his wounded leg, restoring the flesh to his bone, Martin's casual reaction to the wound is rather astounding.
* MysteriousPast: Very. For starters, as one of the last (pure bred, as many of the current inhabitants are implied to be the mutated descendants of humans) humans on Earth what group of survivors did he come from? Is that group still around? What kind of life did he lead prior to having Finn? Who was the mother of Finn and how did he meet her? Was he missing because he was sealed away, or did he abandon him before that? Is he truly a cosmic criminal or was it some kind of frameup or misunderstanding? How exactly did Billy know that Martin was Finn's dad? And how did he know that Martin was imprisoned on the Citadel? [[spoiler:Half of these are answered with the ''Islands'' mini-series.]]
* NoGoodDeedGoesUnpunished: [[spoiler:It's implied that his successful attempt to save Finn from the Island's Guardian is the event that led to him becoming a jerkass deadbeat father as a result of brain damage he took from it.]]
* NoodleIncident: Just how someone like Martin wound up in a cosmic prison that's designed for [[EldritchAbomination Eldritch Abominations]], including ''[[BigBad the Lich]]'', is never touched upon.
** Somehow, he became an interplanetary criminal before that, [[spoiler:even helping Hugo con the citizens of The Drift under the identity of Mr. M]].
** Early on it was going to be implied that Billy himself pushed Martin into the Citadel while being fully aware that Martin was Finn's father, but this also would've raised questions a lot.
* NeverMyFault:
** When Finn finally asks why he was left in the forest, Martin gets incredibly defensive and suggests that "maybe ''you'' abandoned ''me'', did you ever think of that?!" -- Finn was a toddler, and this seems to prove to him that Martin might not be such a good guy after all.
** That said, it's shown that his memory is utterly scrambled and the truth is that he in fact never intended to leave Finn even when he was pursued by his past enemies and only ended up unintentionally abandoning him when he fought off the Guardian and got knocked into the sea in the proccess while suffering brain damage.
* ScrewThisImOuttaHere: The moment he sees the Lich at the Citadel, he bails before things get real.
* TheSociopath: Martin shows some extremely sociopathic behavior: he has a false charm which his actions constantly betray. He lies, manipulates, and otherwise uses people to his own benefit without any concern or empathy toward them, and cares about only himself and nobody else. Through it all he still tries to justify his actions with the most blatantly trivial excuses.
* UngratefulBastard: He uses Finn to heal his leg and then completely ditches him for the Citadel inmates.
* UnreliableExpositor: What little details he's given about how he got separated from Finn should be taken with a grain of salt. He claims Finn was born on a banana boat and that he himself made some kind of choice to leave earth while they were on it. [[spoiler:He was right to some extent but it's implied that his injuries from the fight with the Island Guardian left his memory messed up enough that even he is unsure about what he's saying.]]
* WalkingSpoiler: He's Finn's ''father'', for crying out loud.
[[/folder]]

[[folder:People of the Islands]]

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

!!Deities and Cosmic Beings
[[folder:General]]
* ArcSymbol:
** Red four-sided pyramids (or diamonds when viewed from the top) appear to have some sort of unspecified significance and show up most prominently on top of Golb's head, on the top and bottom of Grob, Gob, Glob, and Grod's helmet, and Scarab's mask.
** Prismo's boss is represented by a golden cord phone with angel and devil wings and two stars on the back.
* CelestialBureaucracy: An especially corrupt and dysfunctional one. Gods regularly neglect their duties or abandon their posts altogether, give special treatment to mortals they like, hold vendettas, engage in nepotism, and sometimes even try to overthrow each other. It is so bad that the system has to employ god auditors whose sole responsibility is keeping the other gods in line and even then the god auditors can also be just as corrupt like Scarab when he decides to shirk his duties to pursue Fionna, Cake and Simon in order to take Prismo's position as the wishmaster. The TopGod in charge of the whole system is Prismo's mysterious boss.
[[/folder]]


[[folder:King Man/Normal Man/Magic Man]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kingman_adventuretime.png]]
[[caption-width-right:200:[[labelnote:Click here to see him as Normal Man]]https://static.tvtropes.org/pmwiki/pub/images/normalman_at.png[[/labelnote]]]]
[[caption-width-right:200:[[labelnote:Click here to see him as Magic Man.]]https://static.tvtropes.org/pmwiki/pub/images/magic_man_4908.png[[/labelnote]]]]
->'''Voiced by:''' Creator/TomKenny

A mysterious alien from Mars. He was exiled after performing many magical pranks on the Martian people, in the hopes that he would learn how to care for others again, but instead spent two hundred years bumming around Earth being a jerk to everyone in Ooo. Fortunately, [[HeelFaceTurn he changes his ways]] after Betty steals his magic powers, and spends the rest of the show ruling wisely to atone for his crimes against Mars.

[[spoiler:He's later revealed to be the true creator of the Fionna and Cake universe, having stored it away in Ice King's mind for safekeeping due to it being "unauthorized". These actions would later come back to haunt Prismo during the events of ''WesternAnimation/AdventureTimeFionnaAndCake'' when Scarab, a God Auditor, threatens to use it to usurp him as Wishmaster upon finding out about it]].

[[spoiler:He's later revealed to be the true creator of the Fionna and Cake universe, having stored it away in Ice King's mind for safekeeping due to it being considered "unauthorized". These actions would later come back to haunt Prismo during the events of ''WesternAnimation/AdventureTimeFionnaAndCake'' when Scarab, a God Auditor, threatens to use it to usurp him as Wishmaster upon finding out about it]].

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

[[folder:The Multiverse]]
[[quoteright:340:https://static.tvtropes.org/pmwiki/pub/images/the_cosmic_imagiation.jpg]]

The sentient totality of all universes across existence.
----
For more information, see [[Characters/AdventureTimeMultiverse Multiverse Characters]]
[[/folder]]

[[folder:Elise ('''SPOILERS''')]]
[[quoteright:190:https://static.tvtropes.org/pmwiki/pub/images/marcelinesmomstakes.jpg]]
->'''Voiced by:''' Creator/RebeccaSugar ("Everything Stays"), Erica Luttrell ("Obsidian")

First seen in a flashback in "Everything Stays", she was a human woman who gave birth to Marceline right before the Mushroom War.

* AmbiguouslyBrown: She either has a dark tan or may have mixed blood in her family.
* BloodFromTheMouth: When her persistent cough worsened to the point that blood ended up on the palm of her hand, she fully realized that she didn't have long to live.
* CreatorCameo: Was initially voiced by Rebecca Sugar, an ex-storyboard artist responsible for much of Marceline's development. "Obsidian" replaces her with Erica Luttrell, who regularly appeared on ''WesternAnimation/StevenUniverse'', a show created by Sugar.
* DaddyHadAGoodReasonForAbandoningYou: Or rather "Mommy" in this case. Deconstructed and PlayedForDrama. As Marceline points out, while her mother did mean well (namely not letting her see her dying), this left Marcy with major abandonment issues and having a hard to deal and express negative emotions.
* DyingAlone: Invoked. She didn't want her daughter to see she was dying, so she sent her away with a lie.
* GoodParents: From the little that is seen, she certainly does a good job raising a half-human/half-demon child (presumably by herself mainly). Though ''Obsidian'' showed she was prone to make mistakes like any other parent.
* IncurableCoughOfDeath: In ''Obsidian'' she is very sick looking, and has a bad cough. When she starts coughing up blood she sends Marceline away, so her daughter wouldn't see her die. The very beginning of the special shows Elise and Marceline walking near a wrecked nuclear plant so its possible she has radiation poisoning.
* InnocentlyInsensitive: She reacted with fear when her Marceline used her demon soul sucking powers to save her. When Elise sends Marceline away shortly after, young Marcy thinks its because Elise is afraid of her.
* InterspeciesRomance: Had one with Hunson Abadeer at some point.
* NotSoDifferentRemark: To Simon (a.k.a The Ice King). Both of them are the only positive relationships Marceline had in her youth, and both of them abandoned her at one point for sympathetic reasons (her mother sent her away so she wouldn't watch her dying; Simon left her before the power of the Ice Crown finally made him go bonkers).
* ParentalAbandonment: Sent Marcie away at a young age so she wouldn't have to watch her die. Marceline grew up thinking her mother had grown frightened of her.
* ParentsAsPeople: She tried her best but hid a lot from her daughter, including the fact that ''she was dying''. This ended up causing Marcy herself to have abandonment issues and trouble expressing her emotions.
* PoorCommunicationKills: Elise refused to talk about anything even remotely bad or upsetting with Marcy, which included the fact that she was sick and dying. This led to Marcy herself having a hard time dealing with negative emotions.
* PosthumousCharacter: Confirmed to have died before the start of the series in "Obsidian".
* TheUnreveal: Just how she got into a relationship with Hudson Abadeer, especially considering this was before the return of magic. In fact, her first words heard was her finishing this story to a young Marceline:
--> ''Then he said fine. And that's the story of how I met your dad.''
* UnnamedParent: Until the credits of "Obsidian" identify her as Elise.

[[folder:People of the Islands]]

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

* DefectorFromDecadence: The "Hiders" are people who try to escape the Island.
* FantasticCasteSystem: The human society on the Islands seems to have a some sort of caste system, although notably not every member of the Island society seems to be part of a caste. The three currently known castes are Experimenters[[note]]Most likely the scientists or engineers of the Islands.[[/note]], Seekers[[note]]Seems to be a sort of soldier or guard caste tasked with preventing people from escaping the Islands[[/note]] and Helpers[[note]]They seem to be the doctors and medical professionals of the Islands.[[/note]]
* PoliceState: Their society has a group of elite solders who drag any one attempting to leave off to re-education. [[spoiler:Minerva replaces these with her fleet of robots, which initially seems to be even more controlling, [[ConspiracyRedemption but Finn convinces her to lighten off and allow people to leave]].]]

[[folder:Jo]]
[[quoteright:267:https://static.tvtropes.org/pmwiki/pub/images/bunny_girl.png]]
->'''Voiced by:''' Ava Acres

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

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

[[folder:Alva]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2017_03_06_10_39_04.png]]
->'''Voiced by:''' Helena Mattsson

A human woman of Swedish descent at a scientific outpost on the Weather Island.

* AllAnimalsAreDomesticated: She's able to communicate with many of the creatures on her island, including a bear. Possibly due to some sort of non-intrusive technology.
* MistakenIdentity: She thinks Finn is the one who drew the nice picture of Jake in his book, and is disappointed when he draws her badly.
* ShrinkingViolet: In the film she shows Finn, her younger self waves shyly at the camera, then blushes.
* SoleSurvivor: The other people at the base all died from the harsh climate and dangerous giant animals -- [[GoneHorriblyWrong which they caused in the first place.]]
* TheUnintelligible: She only speaks Swedish, though she does seem to start figuring out what Finn's saying, eventually.

[[folder:Frieda]]
[[quoteright:287:https://static.tvtropes.org/pmwiki/pub/images/frieda_current_8.png]]
->'''Voiced by:''' Jasika Nicole

A human "Experimenter" from the Islands.

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

[[folder:Minerva Campbell ('''SPOILERS''')]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/minerva_campbell.jpg]]
->'''Voiced by:''' Creator/SharonHorgan

Finn's mother, a human "Helper" from the Islands. She met Finn's father Martin after he was injured trying to escape. When Martin ran from attackers with Finn in tow, accidentally landing them both off the island, Minerva was so distraught that she rededicated herself to her work harder than ever. After a deadly virus outbreak leaves her terminally ill, Minerva uploaded herself into the Islands' computer, created an army of robotic version of herself to take care of everyone, and became the de facto ruler of the Islands.
----

[[Characters/AdventureTimeMain Main Characters]] ([[Characters/AdventureTimeFinn Finn]] | [[Characters/AdventureTimePrincessBubblegum Princess Bubblegum]] | [[Characters/AdventureTimeIceKing Ice King]]) | [[Characters/AdventureTimeAntagonistsAndEnemies Antagonists and Enemies]] ([[Characters/AdventureTimeTheLich The Lich]]) | [[Characters/AdventureTimeLandOfOoo Land of Ooo]] | '''Other Characters''' | [[Characters/AdventureTimeMultiverse Multiverse Characters]]-]]]]]

[[folder:Elise ('''SPOILERS''')]]
[[quoteright:190:https://static.tvtropes.org/pmwiki/pub/images/marcelinesmomstakes.jpg]]
->'''Voiced by:''' Creator/RebeccaSugar ("Everything Stays"), Erica Luttrell ("Obsidian")

First seen in a flashback in "Everything Stays", she was a human woman who gave birth to Marceline right before the Mushroom War.

[[folder:Prismo]]
[[quoteright:209:https://static.tvtropes.org/pmwiki/pub/images/prismohj_60.png]]
->'''Voiced by:''' Creator/KumailNanjiani (original series), Sean Rohani (''Adventure Time: Fionna and Cake'')

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