History Main / SealedInsideAPersonShapedCan

* In ''Film/{{Malignant}}'', [[spoiler:[[BigBad Gabriel's]] revealed to be this. He was originally a parasitic twin who shared a brain with his sister Emily. He developed strange powers over electricity and could also alter his sister's perception of reality. Eventually, he grew so powerful that doctors made the decision to remove as much of him as possible, sealing him inside his sister's skull [[AndIMustScream alive and conscious for decades.]], though he could still exert control over her in the present day.]]

* ''VideoGame/TalesOfHearts'' has the BigBad's mind trapped in [[spoiler:the main character]]. TheDragon finds this out at the beginning of the game and spends the entire first half trying to get him possessed.

* The warrior Tapion and his little brother in one of the ''Anime/DragonBallZ'' movies had half of a beast each sealed inside them, and in turn they were sealed inside a magical music box, a wizard kills Tapion's little brother and frees the other half from Tapion himself, and Tapion is soon unsealed as well and ends up in Earth. In the end Goku manages to kill the beast ''without'' trapping it, which frees Tapion forever so he can live his life as he sees fit.

* Creator/{{Elvira|MistressOfTheDark}} for Elura in ''Elvira's Haunted Hills''.

* In ''LightNovel/ACertainMagicalIndex'', Touma's body contains... something ''that is more powerful than a guy who was more powerful than God''. Touma's right hand, [[AntiMagic Imagine]] [[PowerNullifier Breaker]] normally keeps it in check. Whenever his right hand is severed, the being escapes [[spoiler:but is resealed when the hand is reattached or, more commonly, regenerates on its own. Interestingly, it's implied that there may be more than one being inside Touma. On two occasions, a white dragon emerged, and on the second of these, it brought seven others with it as well. In all other cases, something invisible has emerged. The second one appears to fluctuate greatly in power, as it's [[TheWorfEffect been crushed easily by two different villains to demonstrate their power]]]].

* ''LightNovel/HighSchoolDXD'': Draig, the [[OurDragonsAreDifferent Welsh/Red Dragon]] is sealed inside the protagonist, Issei. Or rather Draig, and his counterpart Albion the Vanishing Dragon, were both sealed inside [[SealedBadassInACan 'cans']] called Sacred Gears, which pass on to a new host when the previous host dies. A case of Sealed Can in a Person Shaped Can. Draig and Albion are neither [[SealedGoodInACan Good]] or [[SealedEvilInACan Evil]], but their constant fighting with each other caused 3 separate warring factions to team up in order to seal them.
* In ''Manga/InuYasha'' ''[[Anime/InuYashaTheMovieTheCastleBeyondTheLookingGlass Second Movie: The Castle Beyond the Looking-Glass]]'', Kohaku is revealed to [[spoiler:have Naraku sealed within a scar on his back]].

* ''LightNovel/ShakuganNoShana'':

* ''LightNovel/{{Slayers}}'':

* Ghost Rider is treated as this in ''Film/GhostRider'' by Johnny Blaze, his human form.

A Subtrope of SealedEvilInACan, SealedGoodInACan, and SealedBadassInACan. Contrast GrandTheftMe and DemonicPossession. Compare LivingMacGuffin, ApocalypseMaiden, BarrierMaiden, and TreasureChestCavity, as well as CagedInsideAMonster, where someone is trapped within something else's body in a directly physical, rather than extradimensional or spiritual, sense. May be caused by SupernaturalSealing. See also RestrainingBolt. Evil beings sealed this way are almost always a LeakingCanOfEvil.

* The ''VideoGame/CastlevaniaChroniclesOfSorrow'' duology has [[spoiler:Dracula]] reincarnate as a voice inside [[spoiler:Soma Cruz]]'s head. In both Bad Endings, [[spoiler:Dracula is fully unleashed, and Soma ceases to be]].

* In the ''Wiki/SCPFoundation'', SCP-231 plays this trope for extreme horror. They have to do [[NothingIsScarier SOMETHING]] [[FateWorseThanDeath horrific]] to this absurdly young girl a ''minimum'' of once a day to keep said evil inside. Each time one gets out (or the host dies) it's progressively worse, to the point that hers could mean [[TheEndOfTheWorldAsWeKnowIt Earth says adios]]. WordOfGod says it's ten times worse than whatever your guess is.

* ''Manga/{{Naruto}}'': The Jinchūriki are people who have tailed demons sealed inside them. They include the title character, Naruto, Gaara of the Desert, and Killer Bee (who contain the Nine-Tailed Fox, the One-Tailed Shukaku, and the Eight-Tailed Ox, respectively). Removing the tailed beast typically kills the host within minutes after the fact, and if the host dies with the beast still sealed inside it then it can take the beast some time to reform. As a result, the beasts grant their hosts supernatural power both to avoid pseudo-death and to weaken the seal. It's worth noting that being sealed in a human makes them ''more'' dangerous. Most Bijuu (Tailed Beast(s)) simply avoid humans and, due to their size and power, have little need for strategy. Jinchūriki can access their power and utilize years of training to focus it more effectively. Though, as the Eight-Tails and Nine-Tails have shown, they're quite capable of ''learning'' to use tactics. [[spoiler:And of acting like tag-team partners with their Jinchūriki.]]

* Jean Grey was the "can" for Dark Phoenix in the ''WesternAnimation/XMen'' animated series. Whether this is the case in [[ComicBook/XMen the original comics]] [[DependingOnTheWriter depends on which retcon is considered canon at the moment]].

* Ayanami Rei from ''Anime/NeonGenesisEvangelion'' is claimed (by one character) to be carrying the soul of an EldritchAbomination inside her. Her superpowers are similar to those of the species to which said eldritch abomination belongs, so it's probably true.
* ''Manga/{{Naruto}}'': The Jinchūriki are people who have tailed demons sealed inside them. They include the title character, Naruto, Gaara of the Desert, and Killer Bee (who contain the Nine-Tailed Fox, the One-Tailed Shukaku, and the Eight-Tailed Ox, respectively). Removing the tailed beast typically kills the host within minutes after the fact, and if the host dies with the beast still sealed inside it then it can take the beast some time to reform. As a result, the beasts grant their hosts supernatural power both to avoid pseudo-death and to weaken the seal. It's worth noting that being sealed in a human makes them ''more'' dangerous. Most Bijuu (Tailed Beast(s)) simply avoid humans and, due to their size and power, have little need for strategy. Jinchūriki can access their power and utilize years of training to focus it more effectively. Though, as the Eight-Tails and Nine-Tails have shown, they're quite capable of ''learning'' to use tactics. [[spoiler:And of acting like tag-team partners with their Jinchūriki.]]
* ''Manga/FairyTail''
** The main example of this trope is a gigantic spoiler - but here's the idea anyway: [[spoiler:The first-generation Dragon Slayers ''contain'' their dragon parents that disappeared! Specifically, they sealed themselves inside their children in order to create "antibodies" that would ensure they wouldn't become crazy and omnicidal dragons like [[BigBad Acnologia]] and to prolong their own lives after Acnologia fatally wounded them.]]
** It comes up again in ''Anime/FairyTailDragonCry'' [[spoiler:with [[BigBad Animus]] being revealed to be a dragon fatally injured by Acnologia that sealed himself inside of the dying Sonya to save himself, which also saved her life and extended her lifespan. Unlike the Dragon Slayers' parents, who could leave their children at any time thanks to them possessing Dragon Magic, Animus couldn't since Sonya wasn't a Slayer, and thus he needed to obtain [[MacGuffin the Dragon Cry]] to free himself and maintain his existence.]]

* ''LightNovel/{{Slayers}}'':
** [[spoiler:Rezo's eyes]] are a can for Shabranigdo.
** Gaav, the Demon Dragon King was sealed in a human. The seal leaked, and it might be said that it leaked both ways, since this is what caused Gaav to revolt against the other demon lords in the first place. A common fan theory goes that the gods knew HumanityIsInfectious, and chose to imprison defeated demons in familial lines of people specifically as a failsafe, so that the AlwaysChaoticEvil would be diluted out over the generations.
** In the series' backstory and novel series, [[spoiler:Lei Magnus and Luke]] are people-shaped cans for pieces of Shabranigdo. Since Shabby was split into seven pieces, we can assume that there are four others like them that we don't know about.
* ''Franchise/SailorMoon'':
** Prince Endymion tries to do this with Metaria near the end of ''Series/PrettyGuardianSailorMoon'' but [[spoiler:she ends up possessing him instead, causing Sailor Moon to have to kill him]].
** In ''Manga/SailorMoon'' proper, Sailor Galaxia sealed Chaos inside herself to protect the universe from it, but ended up turning evil from its influence instead. Note this only happened in the anime.
* ''LightNovel/ShakuganNoShana'':
** A major plot-point is that Artifacts of the Crimson World are often hidden inside 'Torches', who are sort of like temporary simulacra of people killed by Crimson Lords and placed to make their disappearance unnoticeable.
** The Flame Hazes, concerning their "masters". If they were to get out of their host, the Flame Haze [[spoiler:will explode and die.]]
* ''Manga/HellTeacherNube'' has a demon who tried to kill him in his childhood sealed into his left hand by his [[TheMentor mentor Minako]].
* In ''Manga/MyBalls'', there is a powerful demon sealed in the main character's left testicle.
* In ''Manga/SorcererHunters'', the main character Carrot [[spoiler:has the God of Destruction sealed within him]].
* In ''Manga/InuYasha'' ''[[Anime/InuYashaTheMovieTheCastleBeyondTheLookingGlass Second Movie: The Castle Beyond the Looking-Glass]]'', Kohaku is revealed to [[spoiler:have Naraku sealed within a scar on his back]].
* In the first season of ''Anime/{{K}}'', after the main character Yashiro Isana regains his memory of [[spoiler: being the Silver King and being body-snatched by the [[BodySurfer Colorless King]],( he is still in the body of a random high school boy that the Colorless King body-snatched before swapping with him),]] he decided to trap the [[spoiler: Colorless King]] inside of ''himself'' this way [[spoiler: or, more precisely, the body of the high school boy that the Colorless King body-snatched before him. He then steps in between the Red and Blue kings as they're fighting, and lets the Red King destroy his body to kill the Colorless King. [[FromASingleCell Good thing he's immortal]].]]
* ''{{Manga/Bleach}}'': Urahara didn't know how to destroy the Hougyoku so he placed it inside the soul of a spirit being (Rukia). By forcing Rukia to undergo a transformation into an ordinary, physical human, the Hougyoku would be forever sealed. It's strongly implied he actually did this to bait Aizen into revealing his true face since Aizen was forced into the open to recover the Hougyoku before Rukia fully transformed. [[spoiler:Aizen eventually fuses completely with the Hougyoku. There's no known way to separate them which makes Aizen almost unkillable. As a result, Aizen has been sealed for 20,000 years in Soul Society's most powerful prison.]]
* The warrior Tapion and his little brother in one of the ''Anime/DragonBallZ'' movies had half of a beast each sealed inside them, and in turn they were sealed inside a magical music box, a wizard kills Tapion's little brother and frees the other half from Tapion himself, and Tapion is soon unsealed as well and ends up in Earth. In the end Goku manages to kill the beast ''without'' trapping it, which frees Tapion forever so he can live his life as he sees fit.
* [[spoiler:Nia Teppelin]] from ''Anime/TengenToppaGurrenLagann'' is a sleeper for the anti-spiral.

* From ''Manga/TheWorldGodOnlyKnows'', The Weiss [[spoiler:(who enter a gap in the host heart) and the Goddesses (who feed on ThePowerOfLove)]].
* ''Manga/RosarioPlusVampire'' both plays this trope straight and inverts it. [[SealedBadassInACan Inner Moka]] remains sealed by the rosary she wears, but [[spoiler:she's the original, and Outer Moka is an [[ArtificialHuman artificial personality]], so she's effectively sealed inside her own body.]]

* In ''Anime/SasamiMagicalGirlsClub'', [[spoiler:the "cauldron" holding all the witches' negative emotions]] turns out to be an actual person, as the negative emotions were too powerful to be held by anything other than a [[IncorruptiblePurePureness pure heart]].
* In ''Manga/TokyoMewMew'', [[spoiler:Masaya Aoyama]] was created specifically as a can for alien entity Deep Blue.
* In ''Manga/DeadmanWonderland'', the ''Red Man'' AKA the Bad Egg is sealed inside [[spoiler:Shiro]]. This isn't a case of [[DemonicPossession possession]] or [[SuperpoweredEvilSide split personality]] of any sort, though it initially ''looks'' this way and [[spoiler:Shiro]] intentionally makes it ''seem'' like that's what it is; [[spoiler:while it may seem like her [[TheDitz ditzy]] GenkiGirl persona is the "real" one, she's just [[ObfuscatingStupidity putting up a front]] and spending as much time with [[LivingEmotionalCrutch Ganta]] as she can before it all goes to hell]].
* ''LightNovel/HighSchoolDXD'': Draig, the [[OurDragonsAreDifferent Welsh/Red Dragon]] is sealed inside the protagonist, Issei. Or rather Draig, and his counterpart Albion the Vanishing Dragon, were both sealed inside [[SealedBadassInACan 'cans']] called Sacred Gears, which pass on to a new host when the previous host dies. A case of Sealed Can in a Person Shaped Can. Draig and Albion are neither [[SealedGoodInACan Good]] or [[SealedEvilInACan Evil]], but their constant fighting with each other caused 3 separate warring factions to team up in order to seal them.
* In ''Manga/YuYuHakusho'', the demon Kurama placed his soul into the body of a human fetus before it could get its own soul.
* In ''Manga/CardcaptorSakura'', [[spoiler:Yue, one of the two Guardians of the Clow Cards]] is sealed inside [[spoiler:Yukito Tsukishiro]], though it's more of a transformation rather than being sealed inside a different person.
* ''Manga/MissKobayashisDragonMaid'': [[spoiler:For a good chunk of the series, Kanna has a large amount of mana from a 'dragon ball' that she broke as a prank sealed inside her. She can't actually use it though, due to it being compressed (Kobayashi compares it to an unopened zip file).]]

* In ''ComicBook/JohnnyTheHomicidalManiac'', Johnny is revealed to be a "Waste-Lock", a human that serves as a form of receptacle for [[TheHeartless the spiritual negativity that humans generate by their very existence]]. This turns out to be the reason why Johnny [[SociopathicHero never ends up getting caught for any of the horrid things he does]] and also (partially) explains why he's so utterly messed up. [[spoiler:After the thing he was keeping locked up escaped during volume 5, he is freed from his duty once the universe is rebooted. It seems to do little to him except remove some of his compulsion to kill things and making people more aware of his existence.]]

* Puck of ''ComicBook/AlphaFlight'' (the original, Eugene Judd), once served as a walking prison for a demon whose life-draining power resulted in his original dwarfism.
* In Judge Death's first appearance in ''ComicBook/JudgeDredd'', Dredd seals Death in Judge Anderson's body by encasing her in Boing, a spray-on, clear, rubber-like substance that, despite totally enclosing the person's body, nevertheless allows the person to breathe normally for no explained reason. She's done this trick on several other occasions when facing the Dark Judges, but only temporarily: the evil killer ghost judge in her head isn't exactly passive with the arrangement.
* The ''Manga/{{Naruto}}'' parody ''Webcomic/{{Raruto}}'' pokes fun at this: the fourth Bigboss[[note]]Yep, that's Hokage[[/note]] meant to seal the Kyubi in an urn, but there wasn't any non-living container at hand's reach, so he used a baby.
* Mia of ''ComicBook/DeathVigil'' is a teenage-looking girl who was bound to a [[EldritchAbomination True Primordial]] from beyond the Veil in order to save her life. She can transform into the Primordial's monstrous form, though she is reluctant to do so without her father's guidance to keep her humanity intact.
* In ''Comicbook/BillyBatsonAndTheMagicOfShazam,'' after [[KidHero Billy]] seems to be slowly becoming [[NotHimself more nasty and violent]], it's revealed that [[spoiler:[[PsychicPowers Mr. Mind]] has been living in his subconscious since being defeated in the previous series]].
* ''{{ComicBook/Sleepwalker}}'' is a psychic alien from [[DreamLand the Mindscape]], a dimension that connects the minds of everything living in the physical world, who protects the minds of humans from demons and nightmares. When his demon ArchEnemy traps him in the mind of OrdinaryHighSchoolStudent Rick Sheridan, Sleepwalker is able to manifest in the physical world while Rick sleeps or is unconscious. He becomes a superhero protecting the humans' physical bodies and lives the way he protected their minds in the Mindscape.

* At the end of ''[[Fanfic/PoniesOfOlympus Rolling in Beaches]]'', the remnants of the Rainbow of Darkness are sealed inside [[spoiler: Spike]] after they use the Elements of Harmony to destroy it. The Princesses keep this to themselves, though Rodi is reluctant, as she sees this as a potential risk.

* In the backstory of ''Fanfic/ImperfectMetamorphosis'', [[spoiler:the Shadow Youkai]] proved too tough for Yukari and Co. to kill it outright, so they wiped its memories and {{De Power}}ed it into a more manageable form. Over the decades [[spoiler:Rumia]] developed her own personality, so when the former attempts to reemerge it has to fight the latter (and [[spoiler:Rin Satsuki]]) for control. Bonus points for including a BattleInTheCenterOfTheMind, [[spoiler:which didn't end well]].
* In the canon of ''FanFic/TheBridge'' we get an example of a villain container for an even worse villain with Monster X as the vessel for Kaizer Ghidorah. While Monster X is an AntiVillain with a sense of honor and is genuine friends with his teammates, Kaizer Ghidorah is a rampaging monstrosity that will kill anything around him. A big part of Monster X's [[VillainProtagonist story arc]] is both finding out about Kaizer's existence and keeping him contained.
* In ''VideoGame/{{Midnight Sun|FireEmblem}}'', the main character Faratrass is used as a seal to contain the Demon King and is taught magic to contain him. The TraumaCongaLine she goes through during the story ends up putting an emotional strain on her to the point where the seal begins to weaken.

* Creator/{{Elvira|MistressOfTheDark}} for Elura in ''Elvira's Haunted Hills''.
* Ghost Rider is treated as this in ''Film/GhostRider'' by Johnny Blaze, his human form.

* In ''[[Literature/YoungWizards A Wizard Abroad]]'', [[spoiler:Ronan]] has the latest incarnation of Lugh, The One's champion, sealed inside him. The Champion was previously sealed inside of [[spoiler:a parrot, Peach]].

* The first sub-series of ''Literature/DragonlanceTheNewAdventures'' involves an evil wizard using this as an attempt to access the power and knowledge of a particularly evil ancient sorceress. Sadly for him, it turns out that EvilIsNotAToy.
* At the end of ''The Last Dark'', the finale ''Literature/TheChroniclesOfThomasCovenant'' book, Covenant seals GodOfEvil Lord Foul inside [[spoiler:himself. He hopes that eventually he'll be able to change Foul's nature, but ends up withdrawing from the world in order to keep Foul from finding a way to hurt the people around him for the meantime]].
* In ''Literature/TheGirlFromTheWell'', the woman in black is sealed within Tark's body by five mystic tattoos, and must murder five people to free herself. [[spoiler:The miko Chiyo had also habitually used herself as a person-shaped can for evil spirits, and ended up becoming the woman in black when they overwhelmed her.]]

* Played in ''Literature/TheGirlWhoDrankTheMoon'' against the titular character Luna, who has reality-warper scale magic at age five but zero control. Her magic, her knowledge of magic, and her ability to learn about magic (effectively Luna's adult form) are all sealed until she reaches thirteen.
* In ''Literature/{{Pale}}'', the Hungry Choir, a Ritual Incarnate that preys upon the hungry or those hurt by hunger, is eventually sealed within Brie Callie, one of its victims. Brie gains the ability to temporarily summon aspects of the choir to defend herself, which take the form of CreepyChildrenSinging with bloody mouths and broken teeth.

* In ''VideoGame/RuneScape'', the demon Agrith-Naar is sealed into the human body Denath by priests to render him powerless. To get around this, he gathered a group of dark wizards to summon a fellow demon, Delrith; when the player slays Delrith, he tricks them into thinking that he is in the [[EldritchLocation Infernal Dimensions]], and the player tries to summon him into the mortal plane to kill him, [[NiceJobBreakingItHero but instead send him back to his home plane, making him far more powerful.]]
* In ''VideoGame/SonicTheHedgehog2006'', Princess Elise served as Iblis' "can", with her control over her sorrow being the lid -- if she cries, the can is opened and Iblis is unleashed upon the world once more.
* In ''VideoGame/{{Persona 3}}'', the "sealed evil" is Nyx, an EldritchAbomination and AnthropomorphicPersonification of death -- while the "can" just so happens to be [[spoiler:[[BodyHorror the main character]]]].
* At the start of ''VideoGame/SoulNomadAndTheWorldEaters'' [[OmnicidalManiac Gig]] is moved from the Onyx Blade to Revya.
* Gilvaroth, the EldritchAbomination BigBad of ''VideoGame/JeanneDArc'', is willingly put inside King Henry V's body to protect him from his political enemies by Duke Bedford, Henry V's own uncle. However, Gilvaroth cannot be destroyed AsLongAsThereIsEvil, and a new vessel must be found. Enter Roger, who had the Reaper [[SevenDeadlySins Ira]] sealed inside him earlier, and volunteers in order to atone. Things go awry as Gilles [[TakingTheBullet takes his place at the last second]]... with [[FridgeBrilliance horrible consequences]] according to RealLife history. Whew! Gilvaroth gets around.
* In ''VideoGame/DevilSurvivor'', it turns out Amane had a demon sealed inside of her when she was just a child. Unfortunately, said demon is one of the Bels... not the biggest of the problems caused by this, obviously, but considering the whole [[ThereCanBeOnlyOne fight for the Throne of Bel]]. Poor Amane ''also'' has a higher tier angel stuck in her to help balance out against the bel.
* ''VideoGame/HollowKnight'': The FinalBoss of the game, hidden away in the Black Egg Temple, is [[spoiler: the Hollow Knight, who like the PlayerCharacter was a "Vessel" created by the Pale King to contain the plague that destroyed Hallownest. In "The Hollow Knight" ending, the PC slays the Hollow Knight and takes his place as the one containing the infection.]]
* In ''VideoGame/{{Warcraft}}'' lore, Aegwynn was tricked into unwittingly becoming this for the spirit of Sargeras, the series' BigBad. After defeating his physical form, his spirit entered her body and was later passed to her son, Medivh, who under its influence opened the Dark Portal to allow the Horde to invade Azeroth. Killing Medivh banished Sargeras' spirit back to the Twisting Nether.

* A [[RecycledScript very similar arrangement]] occurs in ''VideoGame/WorldOfWarcraft''. After Arthas is defeated in-game, the heroes realize that his willpower was the only thing preventing the Scourge from launching a frenzied, full-force attack that would annihilate all life on Azeroth. To prevent this from happening, there ''has'' to be a Lich King. [[spoiler:Highlord Bolvar, the former human faction leader]], agrees to take on the role of "Jailor of the Damned".
* ''VideoGame/WildArms2'' has two of these. The first is a demon sealed inside the protagonist early in the game, which is kept in check by a magic sword [[spoiler:that sealed the same evil in a more standard can hundreds of years ago]]. Since that worked out so well, the same thing is planned for the Kuiper Core, the main threat of the second disc. [[spoiler:Unfortunately, the Kuiper Core is a ''living universe'', so the can immediately goes from person-shaped to EldritchAbomination. [[DidYouJustPunchOutCthulhu At least you can stab it now.]]]]
* ''VideoGame/TalesOfHearts'' has the BigBad's mind trapped in [[spoiler:the main character]]. TheDragon finds this out at the beginning of the game and spends the entire first half trying to get him possessed.
* ''VideoGame/DragonAgeOrigins'' has a possible ending where the soul of the Archdemon, formerly Urthemiel, Dragon of Beauty, can end up inside [[spoiler:Morrigan's unborn, darkspawn-tainted fetus]]. If this option was taken, in ''VideoGame/DragonAgeInquisition'', you eventually meet this "can" in the form of [[spoiler: Morrigan's ten year old son, Kieran,]] who's a fairly nice boy despite being the host to an Old God--he does, however, make many cryptic remarks, and he appears to be much more ordinary if he was [[spoiler: conceived without the ritual taking place]]. Later in the game, [[spoiler: Flemeth takes the Old God soul out of him, leaving him relatively unharmed in a subversion of the usual trope]].
* The [=DomZ=], local Eldritch Abominations of ''VideoGame/BeyondGoodAndEvil'', consume the life-force of people harvested/kidnapped from the planets they attack. They've had to step up their eating habits and are attacking Hillis because [[spoiler:the spiritual energy of one of the most powerful [=DomZ=] beings has been locked inside Jade, the player character.]]
* The ''VideoGame/CastlevaniaChroniclesOfSorrow'' duology has [[spoiler:Dracula]] reincarnate as a voice inside [[spoiler:Soma Cruz]]'s head. In both Bad Endings, [[spoiler:Dracula is fully unleashed, and Soma ceases to be]].

* The [[UsefulNotes/JackTheRipper "Whytechurch Murderer"]] in ''VideoGame/ArcanumOfSteamworksAndMagickObscura'' is eventually revealed to be an ancient wizard who tried to banish a powerful demon, and ended up with the demon sharing his body.
* In the ''Franchise/KingdomHearts'' franchise, the hearts of many people take refuge, willingly or not, inside the main protagonist Sora for one reason or another, though for most of them he's not aware of it. The BigBad Xehanort also counts, except that he does the reverse [[GrandTheftMe deliberately subjugating others to his will for the sake of his schemes,]] though he ends up in this trope proper a couple of times as a result.
* In ''VideoGame/{{Bayonetta 2}}'', it turns out that [[spoiler:Father Balder, the villain from the previous game, was this for the evil half of the former God of Humankind, named Loptr. The overload of unadulterated evil was what turned him into a monster in the first place]].

* ''VideoGame/FiveNightsAtFreddys3'' has a disturbing example [[spoiler:with The Purple Guy, his undead corpse sealed inside a rotting springlock suit of Spring Bonnie, hence his now name...]] Springtrap.
* In ''Franchise/MortalKombat'', thousands of souls; including [[spoiler:the souls of King Jerrod, Kitana's father; & starting from ''VideoGame/MortalKombatX'', [[BigBad Shao Kahn]] himself]]; are sealed inside Ermac.
* In ''Franchise/TheElderScrolls'' series backstory, before recorded history, Jyggalag, the [[OurGodsAreDifferent Daedric Prince]] of [[ControlFreak Order]], grew powerful. The other ([[OrderVersusChaos chaotic-leaning]]) Daedric Princes grew fearful and jealous of his growing power, so they came together and [[IronicHell cursed him]] into [[BecameTheirOwnAntithesis becoming his own antithesis]] - Sheogorath, the Daedric Prince of [[MadGod Madness]]. However, at the end of every Era, Jyggalag is allowed to return to his true form in an [[EternalRecurrence event known as the Greymarch]]. During this time, he retakes and destroys the Shivering Isles (Sheogorath's and formerly his own [[EldritchLocation Daedric realm]]), only to return to the form of Sheogorath at the end. The main plot of the ''Shivering Isles'' expansion to ''[[VideoGame/TheElderScrollsIVOblivion Oblivion]]'' is Jyggalag attempting to break this ViciousCycle once and for all. [[spoiler:He succeeds in a LiteralSplitPersonalities fashion, freeing himself by [[AGodIsYou passing the mantle]] of Sheogorath onto the [[PlayerCharacter Champion of Cyrodiil]]]].

* In ''Podcast/TheChroniclesOfOz'', [[spoiler: unlike the source material in which Tip is just Princess Ozma under a spell that turned her into a boy, Ozma is instead sealed inside Tip, who was created by magic, and unleashing Ozma means Tip gets to cease to exist. And of course, this becomes the only way to save Oz.]]
* ''WebAnimation/{{Dreamscape}}'': [[spoiler: Melinda's final fate as Ghost Melinda is being encased in an orb of energy created by Eleenin, Kai, and Melissa, which is trapped within the pocket dimension contained within Keedran's chest.]]

* Ayanami Rei from Anime/NeonGenesisEvangelion is claimed (by one character) to be carrying the soul of an EldritchAbomination inside her. Her superpowers are similar to those of the species to which said eldritch abomination belongs, so it's probably true.

* ''VideoGame/WildARMs2'' has two of these. The first is a demon sealed inside the protagonist early in the game, which is kept in check by a magic sword [[spoiler:that sealed the same evil in a more standard can hundreds of years ago]]. Since that worked out so well, the same thing is planned for the Kuiper Core, the main threat of the second disc. [[spoiler:Unfortunately, the Kuiper Core is a ''living universe'', so the can immediately goes from person-shaped to EldritchAbomination. [[DidYouJustPunchOutCthulhu At least you can stab it now.]]]]

* Both Fuji and Hellstrike from ''ComicBook/{{Stormwatch}}'' due to their transformations into energy beings.

* ''WesternAnimation/TheFairlyOddParents'': When Timmy wishes Vicky was good, her evil is shown to be the result of a bug that possesses humans [[{{Squick}} by crawling up their butts.]] Its ultimate goal is to destroy humanity by infecting someone of high enough influence to make this possible. Timmy is unable to capture the bug and in desperation tells good Vicky, who willingly sacrifices herself to it save humanity from being nuked. The bug is thus unable to possess anyone else [[StatusQuoIsGod and Vicky returns to evil.]]

* Literature/FelixCastor has a friend that suffers from this. The friend made the mistake of calling up what couldn't be put down, and Felix tried to exorcise it best he knew how -- only to find the thing had gotten tetherhooks into his friend's soul, meaning a proper exorcism would kill him. So he did the best he could and knitted them together.

* ''Webcomic/{{Drowtales}}'': In the final chapter, what is left of [[spoilerSnadhya'rune]]'s demonic spirit is trapped inside [[spoiler:Demon!Laele]].

* The main premise of ''{{Manga/Bastard}}'': a boy named Rushe Renren contains within him the spirit of one of the most powerful sorcerers of all time, the infamous Exploder Wizard... Dark Schneider!