So there is some cosmic being locked away so that it cannot interfere with the outside world. Some sort of powerful being... [[SealedGoodInACan Good]], [[SealedEvilInACan evil]], or [[SealedBadassInACan neither]], it doesn't matter. But this time, they didn't [[SealedEvilInACan lock away the being in a magical jar of some sort]]. Rather, they somehow managed to bind the thing into the body of a person. A person who may, or may not be aware that they are carrying around some dangerous being within them.

Unleashing the cosmic being usually results in the "can" either dying or being subsumed into it, or killing the "can" results in the destruction of the being. Occasionally causes a BattleInTheCenterOfTheMind. Occasionally results in a SuperpoweredEvilSide, for the evil, neutral and KnightTemplar examples. {{Reincarnation}} may be involved.

A Subtrope of SealedEvilInACan, SealedGoodInACan, and SealedBadassInACan. Contrast GrandTheftMe. Compare MacGuffinGirl and TreasureChestCavity. See also RestrainingBolt. Evil beings sealed this way are almost always a LeakingCanOfEvil.
----
!!Examples:

[[foldercontrol]]

[[folder: Anime And Manga ]]
* ''Manga/{{Naruto}}'': The Jinchūriki are a 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.]]
* Teito Klein, the protagonist of ''Manga/ZeroSevenGhost'', is Pandora's Box... and imprisoned inside Pandora's Box is the death god Verloren.
* The main premise of ''{{Manga/Bastard}}''
* ''{{LightNovel/Slayers}}''
** [[spoiler:Rezo]], whose [[spoiler:eyes]] are a can for Shabranigdo.
** Gaav, the Demon Dragon King was also 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 also 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.]]
** And 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.
* ''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 [[TheObiWan 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 TheMovie 2: The Castle Beyond the Looking-Glass'', Kohaku is revealed to [[spoiler:have Naraku sealed within a scar on his back]].
* ''{{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.]]
* Tapion and his little brother in the last ''Manga/DragonBall Z'' movie 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 brother and frees the other half from Tapion himself. In the end Goku manages to kill the beast without trapping it, which frees Tapion forever.
* [[spoiler:Nia]] from ''Anime/TengenToppaGurrenLagann'' is the evil variety, a sleeper for the anti-spiral.
* In ''LightNovel/ACertainMagicalIndex'', [[spoiler:Touma's body contains... something ''[[SerialEscalation 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. It escaped a few times, whenever an enemy severed Touma's hand, though Touma is able to reabsorb it through force of will and then regrow his arm.]]
* From ''Manga/TheWorldGodOnlyKnows'', The Weiss [[spoiler:(who enter a gap in the host heart) and the Goddesses (who feed on ThePowerOfLove)]].
* ''Manga/RosarioToVampire'' 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 ''Manga/DefenseDevil'', [[spoiler:Idamaria's body contains the goddess of Hell]].
* 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'' is sealed inside [[spoiler:Shiro]].
* ''LightNovel/HighSchoolDXD'': Draig, a [[OurDragonsAreDifferent Welsh dragon]] is sealed inside the protagonist, Issei.
* 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 should be noted that it's more of a transformation rather than being sealed inside [[spoiler:Yukito]] so the situation is more like Inner Moka's situation from Rosario Vampire.
[[/folder]]

[[folder: Comic Books ]]
* In ''Comicbook/ElfQuest'', when BigBad Winnowill finally gets killed, her spirit would be free to prey on the other elves... except that Rayek, the one elf who truly loves her and hopes for her [[HeelFaceTurn redemption]], pulls her spirit into his own to prevent her doing more harm.
* In ''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]].
* {{Etrigan}} the Demon is sealed by Merlin inside Jason Blood.
* In ''[[Franchise/GreenLantern Green Lantern: Rebirth]]'', previous events involving Hal Jordan having gone kind of AxCrazy over the loss of his hometown, killed most of the Green Lantern Corps, renamed himself Parallax, and eventually ending up as the host for Comicbook/TheSpectre were {{retcon}}ned: according to the new telling, Parallax had always been an entity unto itself, and possessed Jordan to use his power and anger for its own purposes. The Spectre getting involved turned the whole situation into more of a person-shaped-can scenario, with Jordan as host for ''both'' of them but the Spectre serving to keep Parallax stuck within him and unable to escape or exert any real control.
* Creator/MarvelComics has legendary PlanetEater ComicBook/{{Galactus}}, who acts as the seal keeping the EldritchAbomination Abraxas imprisoned and not destroying the multiverse. He only needs to eat planets in the first place because the seal is powered by his metabolism.
* Both Fuji and Hellstrike from ''ComicBook/{{Stormwatch}}'' due to their transformations into energy beings.
* ''ComicBook/XMen'' [[https://marvel.com/digitalcomics/view.htm?iid=24530 Vol. 3 #15.1]] features a woman who had trapped several demons in her body.
* 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 Anderson's body by encasing her in Boing.
* The ''Manga/{{Naruto}}'' parody ''{{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.
[[/folder]]

[[folder: Fanfiction]]
* 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.
* ''FanFic/PonyPOVSeries''
** In the [[BadFuture Dark World]] timeline, this trope is attempted and subverted during the BossBattle with [[spoiler:[[OneWingedAngel Odyne!]][[TheDragon Cruelty]]]]. Rarity tries to remove [[spoiler:Cruelty]]'s soul from the body she's [[BodySurf possessing]] and using her Element of Desire to seal it inside herself, but [[spoiler:Cruelty]] fights her off.
** The Shining Armor Arc reveals that [[spoiler:Minuette is actually ''[[Series/DoctorWho the Master]]'' transformed into a pony with his consciousness sealed in a fob watch. And she refuses to become him again.]]
* 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.]]
[[/folder]]

[[folder: Film ]]
* In ''{{Film/Dogma}}'', Almighty God herself took a vacation in the form of a mortal man. When that shell was beaten into a coma and put on life support, God was trapped inside. To be released, the shell had to be taken off of life support, and thus killed.
* Calypso in ''Film/PiratesOfTheCaribbean'', sealed inside [[spoiler:Tia Dalma]]. She is fully aware of her true nature, however.
* In the ''Film/TalesFromTheDarksideTheMovie'' a man meets a woman after surviving a gargoyle attack. The Gargoyle doesn't kill him on the Promise not to tell anyone. Years later he tells the woman who is now happily his wife, with children. it's revealed [[spoiler:the woman ''is'' the Gargoyle who sadly kills him because he broke the promise, and takes their children also gargoyles to live in sadness.]]
* 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.
[[/folder]]

[[folder: Literature ]]
* ''Literature/{{Discworld}}''
** In the first few books, Rincewind has one of the Eight Spells of Creation hidden inside his head. It's described as trying to escape, and it has filled his head to the point of him being unable to learn any other spells.
** After ''Discworld/{{Snuff}}'' [[spoiler:Samuel Vimes has joined in on the fun, now having forced the Summoning Dark (basically the Dwarven AnthropomorphicPersonification of Revenge, [[EldritchAbomination sans anthropomorphism]]) to obey him rather than the other way around.]]
* 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.
* 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 a parrot, Peach]].
* [[spoiler:Angleton]] is a willing, self-aware case of this, as revealed in the third ''[[TheLaundrySeries Laundry Series]]'' book, ''The Fuller Memorandum''. [[spoiler:Bob Howard does this to ''himself'' to avoid being possessed by something worse.]]
* Invoked and played with as the main plot device in Fiona Patton's ''Literature/TalesOfTheBranionRealm'' series, in which a fire god, the Living Flame, essentially inhabits the [[GodEmperor ruler]] of an [[FantasyCounterpartCulture alternate Britain]], hopping to the next-in-line whenever one dies. However, they use the Flame's power for the good of the realm, letting it out while (theoretically) keeping it under control. Played straighter in the third book, when the royal family converts to a different faith which regards the Flame as a demon, and deliberately locks it within themselves. Its own followers set out to [[SaveYourDeity release it]] into the body of a believer by [[StalkerWithATestTube seducing]] its current vessel.
* One young adult ''{{Dragonlance}}'' novel involved 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'', GrandFinale of the ''Literature/ChroniclesOfThomasCovenant'', Covenant [[spoiler: deliberately seals GodOfEvil Lord Foul inside himself. He hopes that eventually he'll be able to change Foul's nature, but ends up withdrawing from the world at the very end of the book in order to keep Foul from finding a way to hurt the people around him for the meantime]].
[[/folder]]

[[folder: Live Action TV ]]
* ''Series/{{Angel}}'': Illyria.
--> '''Illyria:''' This fate is worse than death. Condemned to live out existence in a vessel incapable of sustaining my true glory. How am I to function with such limitation?
--> '''Lorne:''' Have you ever tried a Sea Breeze?
* The Hell-Goddess Glory, from ''Series/BuffyTheVampireSlayer'' was imprisoned inside a mortal man named Ben, and protected by an enchantment that made any human (vampires and demons were immune) who learned of their connection to forget it quickly. In the end, [[spoiler:[[BadassBookworm Rupert Giles]] [[ShootTheDog smothers Ben]] to put an end to Glory's threat forever.]]
* In the Finale of the Fourth Volume of ''Series/{{Heroes}}'', Sylar was trapped in Matt Parkman's head, while Sylar's body walks around thinking it's Nathan Petrelli, with all of Sylar's and Nathan's powers. [[SarcasmMode Yeah, that's gonna end well...]]
* The angel Anna from ''{{Series/Supernatural}}'' was reborn in a human body, and was completely oblivious to the fact that she had great power, even without her Grace.
* [[Series/KamenRiderBlade Hajime Aikawa]], aka Kamen Rider Chalice, is in reality the Joker Undead, a creature that serves as the ResetButton for the "Battle Fight", a battle royale among the Joker and 52 other Undead (each of which represents a different form of life) to determine what will become the dominant life form. The reset triggers with the sealing of all other Undead save Joker, and would result in the end of all life on the planet (at which all other 52 Undead would be unsealed and the Battle Fight would restart). Hajime keeps his SuperpoweredEvilSide sealed with the Change Mantis and Spirit Human cards.
* The ''TwinPeaks'' spirit BOB is somewhere between this and DemonicPossession.
[[/folder]]

[[folder:Tabletop Games]]
* ''TabletopGame/{{Warhammer 40000}}'' has [[DemonicPossession Daemonhosts]], [[TheHeartless daemons]] that hijack a person's body to manifest in our reality, which can also be done ''deliberately'', binding a daemon into a prepared body to bind it and [[KidWithTheLeash use it's power for themselves]]. This is of course [[EvilIsNotAToy horrifically dangerous]], as when it escapes the daemon will ''not'' be happy with whoever bound it. In ''Literature/{{Eisenhorn}}'' killing the host without simultaneously banishing the daemon simply allowed it to transfer to another host, and while official [[StateSec Inquisition]] policy is that the person is killed when their body is taken over, one daemon claims they still remain (not that daemons can be trusted).
[[/folder]]

[[folder: Video Games ]]
* In ''{{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.
* 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.
* In ''{{VideoGame/Diablo}}'' lore, it is customary for the [[BigBad Prime Evils]] to spend time inside human hosts -- either as a safety measure, or chained there against their will. When the [[EveryoneCallsHimBarkeep Wanderer]] was tricked into using Diablo's soulstone on himself, he became the unwitting host of the Lord of Terror, and at some unknown point in time lost his will for good. In the distant past, a monk by the name of Tal Rasha decided to [[HeroicSacrifice bind himself to Baal]] to imprison the Lord of Destruction forever and ever. [[DoomedMoralVictor It didn't go so well]].
* 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 [[spoiler:the BigBad's mind trapped in the main character. TheDragon finds this out at the beginning of the game and spends the entire first half trying to get Shing possessed]].
* ''VideoGame/DragonAgeOrigins'' has a possible ending where [[spoiler:the soul of the Archdemon, formerly Urthemiel, Dragon of Beauty, can end up inside Morrigan's unborn, darkspawn-tainted fetus]].
* The [=DomZ=], local Eldritch Abominations of ''VideoGame/BeyondGoodAndEvil'', consume the life-force of people harvested/kidnapped from the planets they attack. [[spoiler:It is revealed that they've had to step up their eating habits because the spiritual energy of one of the most powerful [=DomZ=] beings has been locked inside Jade, the player]].
* In ''VideoGame/{{Disgaea 2|CursedMemories}}'', [[spoiler:through the "reincarnation" option, Rozalin is Overlord Zenon and still has Zenon's original personality buried deep beneath her own personality. Laharl learns the hard way that unleashing it is a really, really bad idea.]]
* In ''[[HeroesOfMightAndMagic Might and Magic: Heroes VI]]'', Kiril, the protaganist of the [[FireAndBrimstoneHell Inferno]] campaign, ends up sharing his body with Azkaal, a demon prince of destruction.
* In ''PhantasyStarIV'', the third incarnation of Dark Force is sealed up inside Seth, who joins your party. Creepier than most, in that it's never made clear whether Seth was ever really human, or if he was just a human form. On the one hand, he seems genuinely terrified when he starts to change; on the other, his skill list is 100% dark servitor.
* The [[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 Series/KingdomHearts series, 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.
[[/folder]]

[[folder:Web Original]]
* In ''Roleplay/TheGamersAlliance'', Laverna, the Goddess of Thieves, is trapped inside the body of Haruko Mizushima who is at first unaware of the predicament although she realizes it later on when the goddess talks to her while she's asleep.
* Michael Waite, famed horror writer in the Literature/WhateleyUniverse, turned out to be one of these. Locked inside him is The Kellith, a [[EldritchAbomination Great Old One]] foretold to wipe humanity off the planet and repopulate it with her spawn. Then he 'died' and changed into what everyone assumes is a vampiric girl mutant codenamed Carmilla. [[spoiler:Kellith did a pretty good job of being not-evil... or at least, not destroying-all-existence evil.]]
* In ''WebVideo/{{Kickassia}}'', [[spoiler:Doctor Insano]] is presented as one of these to [[spoiler:Spoony]]. His inevitable release is a [[Awesome/{{Kickassia}} Crowning Moment of Awesome]] yet still vaguely disturbing.
* 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 every few days 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.
* Ancient Egyptian sorcerers in the ''GlobalGuardiansPBEMUniverse'' irreversibly bound Nephthys, Goddess of Chaos and wife of the Jackal-God Set, in the body of a twelve-year-old girl and sealed her into a Pharaoh's tomb, to be imprisoned for all time. Little did they suspect that the goddess would find such treatment to only be a temporary inconvenience.
* Played strangely in ''Webcomic/{{Digger}}''. The eventual BigBad is [[spoiler: a demon... sealed in a ''god''. Which has in turn been sealed beneath the earth.]]
[[/folder]]

[[folder: Western Animation ]]
* Jean Grey was the "can" for Dark Phoenix in the ''WesternAnimation/{{X-Men}}'' animated series. Whether this is the case in [[ComicBook/{{X-Men}} the original comics]] [[DependingOnTheWriter depends on which retcon is considered canon at the moment]].
* In ''WesternAnimation/KungFuPandaLegendsOfAwesomeness'', the mighty demon Ke-Pa has been imprisoned for a hundred years by the power of the Peach Tree of Heavenly Wisdom in the body of a pig. When the tree dies, Ke-Pa breaks free and assumes his [[OneWingedAngel true form]]: a giant dragon.
* ''WesternAnimation/TheLegendOfKorra'' revealed that the origin of the Avatar was the Spirit of Light, Rava, getting bound to Wan, who became the first Avatar.
[[/folder]]
----