History EldritchAbomination / WesternAnimation

** [[Characters/GravityFallsBillCipher Bill Cipher]], a [[SinisterGeometry triangle-shaped]], [[PaperPeople two-dimensional]], [[RealityWarper reality-warping]] [[OurDemonsAreDifferent demon]] who interacts with the dimension Earth by [[DreamWalker appearing in people's dreams]]. [[spoiler:The 3-D form that he takes after breaking into the physical world in "[[Recap/GravityFallsS2E18Weirdmageddon Weirdmageddon]]" is an even better fit than his standard 2-D form.]]

** There's Hytherion, also known as the "Beast of Time", who is a hyper-dimensional creature of immense power and destructive potential, capable of traveling freely throughout the Multiverse. Composed of interdimensional matter, Hytherion's feeds on time itself, is known to have devoured entire universes,(apparently it's function is to consume weakened and damaged universes, preventing their chaos from spreading further into the multiverse) and ot is normally invisible and intangible to lower-dimensional beings snd it is prophesied that a version of Megatron will lead the creature to destroy Earth one day.

** The titular entity from "[[Recap/SupermanTheAnimatedSeriesS3E10Unity Unity]]" is a HiveMind alien blob thing that uses a creepy preacher as its primary avatar, turning [[spoiler:Smallville]] into a TownWithADarkSecret and nearly absorbing all of the townsfolk into itself.
** In the comics, Ian Karkull is a guy with shadow powers, but in this, it's like the writers didn't know if they wanted Cthulhu or Satan and so ''combined them''. A common hood gets his hand on a tablet and reads it aloud. ''Bad'' idea. He becomes the host to a shadowy tentacled ''something'' that wants to create HellOnEarth and basically overwrites the Daily Planet with his own unreality, everyone caught within, Lois and Jimmy included, becoming possessed and transformed by the demonic creatures that live there. There's a seemingly bottomless pit in the center. In the end, Superman has to chase the dropped tablet (ComicBook/DoctorFate needs the original tablet to undo it all) down this pit, and it turns out that if you go far enough, farther than the eye can see from the surface, the pit ''does'' have a bottom. The bottom ''has a mouth''. The bottom is also '''rising'''.

** The Lich, the closest thing the show has to a BigBad. He's a monstrous necromancer/''thing'' that looks like a rotting, horned corpse in its natural state and can possess mortals, wearing their corpses like suits. [[TimeAbyss He's existed for about a thousand years and doesn't appear to age in any manner]]. He is also an OmnicidalManiac who claims to be the personification of death and cannot feel empathy, seeking to destroy all life. What's most unsettling is that it's strongly implied that [[spoiler:he WasOnceAMan. Specifically, he was apparently a semi-normal person or creature who was hit by a magically enhanced warhead from the Great Mushroom War, which transformed him into the Lich]]. The Lich may very well have existed before even nothingness... but even if he didn't, he can provide some images of some horrible, horrific abominations from that not-time.

** Bill Cipher, a [[SinisterGeometry triangle-shaped]], [[PaperPeople two-dimensional]], [[RealityWarper reality-warping]] [[OurDemonsAreDifferent demon]] who interacts with the dimension Earth by [[DreamWalker appearing in people's dreams]]. [[spoiler:The 3-D form that he takes after breaking into the physical world in "[[Recap/GravityFallsS2E18Weirdmageddon Weirdmageddon]]" is an even better fit than his standard 2-D form.]]

** Discord is an [[GodOfChaos embodiment of chaos]] with [[MixAndMatchCritter parts from many animals]] who dwells in an EldritchLocation. His powers are completely uncontrollable by anyone less chaotic than him, and have once opened a portal to a live-action puppet dimension. His powers also allow him to, among other things: [[RealityWarper break the laws of reality]], MindRape the protagonists, bring villains back from the dead, and easily NoSell King Sombra's attacks.

* In the backstory of ''WesternAnimation/SamuraiJack'', the gods, Odin, Vishnu and Ra, hunted and defeated Evil itself, a [[OminousObsidianOoze black mass]] of pure ''nothing''. A single fragment survived and fell to Earth and eventually becoming another eldritch horror known as [[BigBad Aku]], a vaguely HumanoidAbomination of [[MadeOfEvil pure evil]] with [[VoluntaryShapeshifting shapeshifting powers]] and immunity against all conventional weaponry. The only thing that can truly hurt [[spoiler:and kill]] him is the [[CoolSword divine sword]] that's wielded by [[TheHero the titular hero]].

** Lucubra, the main antagonist of the episode "The Creature From Beyond" [[spoiler:and one of the breed of monstrous minions to the BigBad of the season, Diagon]]. This extra-dimensional horror boasts SuperStrength, NighInvulnerability, [[EnergyWeapon Frickin' Laser Beams]], and the power to devour a person's thoughts with MindControl as a bonus.
** Dagon. It's held behind the same seal as Lucubra, but is ''much'' worse (Gwen says compared to Diagon, Lucubra is an ''insect!''). In the next episode, they're actually shown the Diagon, and while the audience doesn't see it ([[TrailersAlwaysSpoil though commercials very clearly show him]]), Gwen and Kevin react to seeing him as if they were ''in pain''. [[http://ben10.wikia.com/wiki/Diagon Just take a look.]] He comes from another dimension, is referred to as an "Old One" by Charmcaster, and has enough power to match and defeat a powered up Way Big (one of Ben's most powerful aliens, if not THE most powerful).

* ''WesternAnimation/{{Futurama}}'':
** Yivo from "[[Recap/FuturamaM2TheBeastWithABillionBacks The Beast with a Billion Backs]]", a genderless (it prefers to be referred as "shklee" or "shkler"/"shklim") GeniusLoci with one eye and thousands of tentacles the size of a very large planet that [[DidYouJustRomanceCthulhu attempts to romance with the entire universe]]. However, Yivo is a ''friendly'' cosmic horror that really only seeks to be in a relationship with somebody (or in this case, everybody). The friendly aspect may not be entirely true, due to the fact that it was using all of its tentacles to engage in a form of reproduction with everyone they were attached to. Which boils down to the fact that this creature borerline ''raped'' almost every living being in the universe.
--->'''Yivo''': [[NeverMyFault Your universe dresses provocatively]].
** [[GreaterScopeVillain The Brain Spawn]] could certainly count. These giant flying brains were born only a few miliseconds after the universe came into existence. They despise all other lifeforms and visit planets to drain everyone of their intelligence before destroying it. When not destroying other worlds, they collect information from them to be stored in a gigantic member of their kind, and then intend to [[OmnicidalManiac destroy the universe]] once it is done, so that no new information will exist.
** The eponymous SpaceWhale from "[[Recap/FuturamaS6E15MobiusDick Möbius Dick]]" could certainly count. It is an enormous leviathan that is actually native to the fourth dimension, but "breaches" into ours because it breathes the vacuum of space. It also has a Mobius colon and feeds on the obsessions of the space captains who hunt it, slowly absorbing them into its own mass.

** This also includes the creators of the Arachnitects, about whom nothing is really known.
** The Titans are a race of creatures created by the Arachnitects, but distorted by the Invictus, as a result of which they are trapped in the Final Space.

** The Elders Gods, a race of cold, alien, and evil intelligences that exist in the non-spacetime of swirling anti-matter "outside" our universe dwarfing even Unicron in terms of power, their limitless abilities are kept in check only by their inscrutable motivations and indifference to the affairs of lesser beings that exist in what we so arrogantly call "reality". Also, H.P. Lovecraft once encountered them, which inspired him to make them the basis of his novels.

** He does ''not'' [[PlanetEater eat planets]] for sustenance -- he gets ''that'' from [[AsLongAsThereIsEvil hatred and strife]], and will exist so long as these things do. No, he eats planets because he's offended by existence. All of it. So he's trying to eat it. All of it. Every dimension. He's already devoured approximately 20% of all known existence in the TheMultiverse and is eager to continue his binge. When he's done, ''space itself as we know it'' will be ''eaten''. He apparently [[ApocalypseHow once destroyed reality itself]], and the only reason that anything exists at all is because he missed a couple of fragments and fell asleep, allowing them to rebuild.

* ''WesternAnimation/TheGhostAndMollyMcGee'' has The Chairman as its [[BigBad Big Bad]], he is a mysterious entity who is the leader of the Ghost Council and ruler of the Ghost World who forces other ghosts to be miserable and scare living people, if a ghosts fails to do their job, they will be punished by being sent for an eternity to the [[FateWorseThanDeath Flow Of Failed Phantoms]]. [[spoiler: [[DidYouJustPunchOutCthulhu Molly defeats him at the end of season one by overriding his misery with her joy, disintegrating the undead abomination.]]]]

* ''WesternAnimation/TheGhostAndMollyMcGee'' has The Chairman as its [[BigBad Big Bad]], he is a mysterious entity who is the leader of the Ghost Council and ruler of the Ghost World who forces other ghosts to be miserable and scare living people, if a ghosts fails to do their job, they will be punished by being sent for an eternity to the [[FateWorseThanDeath Flow Of Failed Phantoms]]. [[spoiler: [[DidYouJustPunchOutCthulhu Molly defeats him at the end of season one by overriding his misery with her joy, disintegrating the undead abomination]].

** The OverLord is much worse, he is an ancient entity [[MadeOfEvil made from darkness]] who is behind most of the villains in the series, including The Great Devourer herself.

* ''WesternAnimation/TheGhostAndMollyMcGee'' has The Chairman as its [[BigBad Big Bad]] in its first season, he is a mysterious entity who is the leader of the Ghost Council and ruler of the Ghost World who forces other ghosts to be miserable and scare living people, if a ghosts fails to do their job, they will be punished by being sent for an eternity to the [[FateWorseThanDeath Flow Of Failed Phantoms]]. [[Spoiler: [[DidYouJustPunchOutCthulhu Molly defeats him at the end of season one by overriding his misery with her joy, disintegrating the abomination]].

** The OverLord

* ''WesternAnimation/RegularShow'' has one where Benson's boss, Mr. Maellard demotes him and introduces the new park manager who goes by the name of Susan. But after she fires Benson who proves to be an ever bigger slacker than Mordecai and Rigby, which he decides to get his job back after he discovers how bad it feels to be jobless, [[spoiler: he discovers that Susan has been commanding the Park Managers until they begin to [[BodyHorror look just like her]] and [[BadBoss follow her every command]]. And after they turn back to normal thanks to Benson, Susan's [[RageBreakingPoint breaking point has reached a limit]] and summons [[OneWingedAngel a giant version of herself]] to crush the employees into obedience. If it wasn't for [[EveryoneHasStandards Mr. Maellard discovering the horrible things Susan is doing that shouldn't be part of the business]], where he gives Benson his job back and his car keys and have Leon drive the limo to [[AttackItsWeakPoint break the heels off of Susan's shoes]] forcing Susan to fall in the hole where she is [[VisualPun literally fired]], then she would have [[KilledOffForReal killed off]] all the main characters of the show.]]

* ''WesternAnimation/RegularShow'' has one where Benson's boss, Mr. Maellard demotes him and introduces the new park manager who goes by the name of Susan. But after she fires Benson who proves to be an ever bigger slacker than Mordecai and Rigby, which he decides to get his job back after he discovers how bad it feels to be jobless, [[spoiler: he discovers that Susan has been commanding the Park Managers until they begin to [[BodyHorror look just like her]] and [[BadBoss follow her every command]]. And after they turn back to normal thanks to Benson, Susan's [[RageBreakingPoint breaking point has reached a limit]] and summons [[OneWingedAngel a giant version of herself]] to crush the employees into obedience. If it wasn't for [[EveryoneHasStandards Mr. Maellard discovering the horrible things Susan is doing that shouldn't be part of the business]], where he gives Benson old his job back and his car keys and have Leon drive the limo to [[AttackItsWeakPoint break the heels off of Susan's shoes]] forcing Susan to fall in the hole where she is [[VisualPun literally fired]], then she would have [[KilledOffForReal killed off]] all the main characters of the show.]]

* ''WesternAnimation/RegularShow'' has one where Benson's boss, Mr. Maellard demotes him and introduces the new park manager who goes by the name of Susan. But after she fires Benson who proves to be an ever bigger slacker than Mordecai and Rigby, which he decides to get his job back after he discovers how bad it feels to be jobless, [[spoiler: he discovers that Susan has been commanding the Park Managers until they begin to [[BodyHorror look just like her]] and [[BadBoss follow her every command]]. And after they turn back to normal thanks to Benson, Susan's [[RageBreakingPoint breaking point has reached a limit]] and summons [[OneWingedAngel a giant version of herself]] to crush the employees into obedience. If it wasn't for [[EveryoneHasStandards Mr. Maellard discovering the horrible things Susan is doing that shouldn't be part of the business]], give Benson his job back and Maellard's car keys and have Leon drive the limo to [[AttackItsWeakPoint break the heels off of Susan's shoes]] forcing Susan to fall in the hole where she is [[VisualPun literally fired]], then she would have [[KilledOffForReal killed off]] all the main characters of the show.]]

* ''WesternAnimation/RegularShow'' has one where Benson's boss, Mr. Maellard demotes him and introduces the new park manager who goes by the name of Susan. But after she fires Benson who proves to be an ever bigger slacker than Mordecai and Rigby, which he decides to get his job back after he discovers how bad it feels to be jobless, [[spoiler: he discovers that Susan has been commanding the Park Managers until they begin to [[BodyHorror look just like her]] and [[BadBoss follow her every command]]. And after they turn back to normal thanks to Benson, Susan's [[RageBreakingPoint breaking point has reached a limit]] and summons [[OneWingedAngel a giant version of herself]] to crush the employees into obedience. If it wasn't for [[EveryoneHasStandards Mr. Maellard discovering the horrible things Susan is doing that shouldn't be part of the business]], give Benson his job and car keys and have Leon drive the limo to [[AttackItsWeakPoint break the heels off of Susan's shoes]] forcing Susan to fall in the hole where she is [[VisualPun literally fired]], then she would have [[KilledOffForReal killed off]] all the main characters of the show.]]