History Main / BecameTheirOwnAntithesis

** Likewise, Fëanor -- the mightiest and most capable of all Noldor Elves. He rebels against the ''valar'' and becomes but a rogue chief, leading almost all Noldor into destruction.

* Morgoth in JRRTolkien 's legendarium. Initially ''Melkor'', "arising in the might", the mightiest and most able of the ''valar'', demi-gods, he descends into madness and becomes ''Morgoth'', "black enemy of the World".
** Likewise, Fëanor - the mightiest and most capable of all Noldor Elves. He rebels against the ''valar'' and becomes but a rogue chief, leading almost all Noldor into destruction.

** Coincidentally, it happens to anyone who has ever been turned in the whole history of the series, except Spike, who kept his capacity of altruism even though he behaved terribly in many occasions.

** When the inability to hide something stems from a trauma, the deduction is often that the trauma ''caused'' the change. This is how a Sociopath, a Narcissist, or a ConArtist can be spoted in periods of stress after lapses in judgement, lack of planing, and sudden and ill-advised outbursts of rage... or just considered to be having a hard time. Even unable to manipulate, the ManipulativeBastard can still outsmart everyone in the end.

* {{GIFT}} can consist of this, as it is wittily explained in [[http://www.foodbuzz.com/blogs/4934571-internet-personality-inversion-rate-index-not-food-related- this article]]. The reader is to jusge whether the purposed equation performs well or not in its prediction purpose.

See Also {{He Who Fights Monsters}}, {{Ascended Demon}}, {{Fallen Angel}}, {{Fallen Hero}} and {{Start of Darkness}}. Compare and contrast HourglassPlot, though it can sometimes overlap, when two opposite characters are becoming this trope.

* In ''Series/{{Merlin}}'', [[spoiler:Morgana]] was at first a confident, brave, and always compassionate young woman, who didn't judge any differences between magicians and non-magicians. After she discovers she has magical powers and who would thus be hunted by Uther and shunned in Camelot, she becomes insecure and paranoid. Her feelings of isolation and lack of self-worth make her more self-focused. She slowly begins seeing everyone in Camelot as an enemy and reinterprets her relationships with them. After a betrayal, she begins to feel justified in her fear and considers all non-magic users in Camelot as worthless and cruel enemies who deserve to die. She then uses her insight into their inner lives to trap them, manipulate their minds, [[ArsonMurderAndJaywalking and ruin their romantic plotlines]].
--> '''Arthur''': [[spoiler:What ''happened'' to you, Morgana? I thought we were friends.]]\\
[[spoiler:'''Morgana''': As did I.]]

* [[spoiler:[[IHatePastMe Emiya Shirou]]]] from ''VisualNovel/FateStayNight'' is a {{Wide Eyed Idealist}} who wants to be a Hero and protect everyone, [[IncorruptiblePurePureness and he only wants to do what seems to be right]]. His [[FutureMeScaresMe Future Self]] [[OtherMeAnnoysMe from another reality]] [[spoiler:[[AntiHero Archer]]]] on the other hand is a [[SillyRabbitIdealismIsforKids Cynic]] who hates being an Heroic Spirit, says it a [[CursedWithAwesome cur]][[BlessedWithSuck se]] and a goal [[spoiler: Shirou]] should not pursue, wants to kill him and is willing to use rather ambiguous methods to reach his [[GrandfatherParadox self-destructing goal]]...

* [[spoiler:[[IHatePastMe Emiya Shirou]]]] from ''VisualNovel/FateStayNight'' is a {{Wide Eyed Idealist}} who wants to be a Hero and protect everyone, [[IncorruptiblePurePureness and he only wants to do what seems to be right]]. His [[FutureMeScaresMe Future Self]] [[OtherMeAnnoysMe from another reality]] [[spoiler:[[AntiHero Archer]]]] on the other hand is a [[SillyRabbitIdealismIsforKids Cynic]] who being an Heroic Spirit, says it a [[CursedWithAwesome cur]][[BlessedWithSuck se]] and a goal [[spoiler: Shirou]] should not pursue, wants to kill him and is willing to use rather ambiguous methods to reach his [[GrandfatherParadox self-destructing goal]]...

It is of course often closely related to ShadowArchetype and TheCorrupter (she or he delects in this, mostly when it is a case of CorruptTheCutie). It rarely prompts "WhatHaveIBecome" or "I Have Seen the Light", the change often being too brutal to be noticed before it is completed. Expect some surprising OutOfCharacterAlert. Also, this is sometimes tightly linked with MoralityDial and MirrorMoralityMachine for examples where an heel/face and face/heel transformation (along with this trope) are [[FaceMonsterTurn exerted by artificial means]] by a third party.

** This seems to have happened to [[spoiler:Tess Mercer]], who was seen in flashback as an innocent, soft, optimistic and vulnerable young woman when she met Oliver. Cue to her being a WellIntentionedExtremist, who can fight with almost everyone without superpowers, candidate to being the BigBad and fully believing that HumansAreBastards.

* In MyLittlePonyFriendshipIsMagic, it happened to [[TheCutie Fluttershy]] and [[DarkIsNotEvil Luna]] when they failed to (or felt that they failed to) use their special gifts. Cue to the Cutie Mark Failure theory amongst the fandom.

* In MyLittlePoneyFriendshipIsMagic, it happened to [[TheCutie Fluttershy]] and [[DarkIsNotEvil Luna]] when they failed to (or felt that they failed to) use their special gifts. Cue to the Cutie Mark Failure theory amongst the fandom.

* It is discussed in ''Kid Paddle''. The child hero imagines it can happen by surgery, turning his brain around. He becomes terrified at the idea that his sister and his father would do this to him. It is a nice metaphor of his impression that they do not like him, and that there is not a thing they accept in him. They actually care more, but it is made clear that he and them have almost nothing in common.

* In ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', a theory among the fandom is that whenever a character fails to use their talent for cuteness, their personality is somehow reversed.

[[caption-width-right:350:[[BadassDamsel Old Morgana]] says she "[[TheCaretaker will take care of it]]". [[DarkActionGirl New Morgana]] says she "''will take care of it''".]]

* The young Clark Kent from ''Series/{{Smallville}}'' became a shadow of himself whenever he was exposed to [[AppliedPhlebotinum red kryptonite]], or any product that could alter his personality. It was sometimes hinted by Martha, one of his mothers, to be a case of TrueSelf revealed, which would mean that Clark mainly spent the first four season of Smallville willing to blast Lex against a wall while cheating on the poor Lana, all while quite conspicuously ruining his reputation and throwing money by the windows.

* In ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', a theory among the fandom is that whenever a character fails to use their talent for cuteness, their personality is somehow reversed.

Examples:

* ''{{Fate Stay Night}}'' features an example listed in Litterature.

* Quite funnily, ''Kid Paddle'''s hero fears this will happen to him under the same circumstances, suspecting his father to want it. He fears he would be turned into a GlurgeAddict, a thought that apalls him.

* [[spoiler:[[IHatePastMe Emiya Shirou]]]] from ''{{Fate Stay Night}}'' is a {{Wide Eyed Idealist}} who wants to be a Hero and protect everyone, [[IncorruptiblePurePureness and he only wants to do what seems to be right]]. His [[FutureMeScaresMe Future Self]] [[OtherMeAnnoysMe from another reality]] [[spoiler:[[AntiHero Archer]]]] on the other hand is a [[SillyRabbitIdealismIsforKids Cynic]] who being an Heroic Spirit, says it a [[CursedWithAwesome cur]][[BlessedWithSuck se]] and a goal [[spoiler: Shirou]] should not pursue, wants to kill him and is willing to use rather ambiguous methods to reach his [[GrandfatherParadox self-destructing goal]]...

* In the ''HouseOfTheNight'' serie, [[spoiler: Stevie Rae]] became a more aggressive, impulsive, and slightly misanthropic [[spoiler: undead]] after being TheCutie for most of the series. Unlike most of the initially heroic examples, it however contributed to improve her character, after she healed from her new aggressive nature, and to make her an independent, always heroic and more self-controlled person.

* This is downplayed with [[spoiler: the antagonist]] in ''MansfieldPark''. [[spoiler: Mary Crawford]] starts in JaneAusten's ''MansfieldPark'' as a somewhat vain gold-digger, who is nonetheless a loyal friend and had some kind of elegance about her which prompted much DracoInLeatherPants, while the heroine Fanny Price starts the book as a passive and judgemental extreme doormat who lacks self-condidence, prompting much RonTheDeathEater. In the end, Mary Crawford shows what remains of her initial TrueColors, and borders StupidEvil, having become geniuely interested in Edmund and a FalseFriend to Fanny. This is, as often, mirrored by a HourglassPlot, as the initially defenseless Fanny shows more confident and useful traits, and [[spoiler: gets what Mary Crawford wanted]].
* In the StarWarsExpandedUniverse, it is downplayed with [[spoiler: Jacen Solo]], a compasive and self-doubting young Jedi, who seemed to be very generous to his family was turned into a Sith because he thought he could use the power of Siths without corruption. When his extremism got the better of him, he became a ruthless and inflexible Sith Lord, who killed his aunt, and only began to regain his previous characteristics when he feared for his daughter and questionned his lack of empathy, self-centred behavior, and uncontrolled outbursts of anger.

* Peter Parker, the {{Adorkable}}, awkward and relatively devoted suitor and hero from the first two SpiderMan movies briefly becomes a confident and manipulative egotist after fusing with an evil symbiote in ''SpiderMan3''.

* In ''BuffyTheVampireSlayer'', this happens to Willow when she becomes Dark Willow (from PluckyGirl and TheCutie to AccentuateTheNegative and TheBaroness). It also happened to her alternate vampire self.

* It happened to [[spoiler:[[KnightInShiningArmor Duncan]]]] after the dark Quickening, and to the warlord Darius after a light Quickening in the series ''{{Highlander}}''.

--> '''Arthur'''[[TearJerker :]] [[spoiler:What ''happened'' to you, Morgana ? I thought we were friends.]]\\
--> [[spoiler:'''Morgana''': As did I.]]

* The young Clark Kent from ''Series/{{Smallville}}'' became a shadow of himself whenever he was exposed to [[AppliedPhlebotinum red kryptonnite]], or any product that could alter his personality. It was sometimes hinted by Martha, one of his mothers, to be a case of TrueSelf revealed, which would mean that Clark mainly spent the first four season of Smallville willing to blast Lex against a wall while cheating on the poor Lana, all while quite conspicuously ruining his reputation and throwing money by the windows.

* It happens to [[spoiler:Boris]] in ''YoungDracula''. From TheCutie and TheComicallySerious with WellDoneSonGuy and RebelliousRebel tendancies to a HandsomeDevil and TheCharmer who becomes an AntagonisticOffspring. Bonus points for actually using [[MirrorMoralityMachine a mirror]].

* In ''Macbeth'', the eponymous character [[ProtagonistJourneyToVillain turns]] into TheCaligula, after being a loyal general who proved himself to be heroic and have qualms about his wife's plan to take power. He slowly loses all moral scruples, while his wife, who pushed him to ruthlessly betray his king, [[HeelRealization feels deep remorse]] [[RedemptionEqualsDeath and]] is DrivenToSuicide.

* This slowly happens to the prince in one of the sequels of ''PrinceOfPersia'', when the side effects of the sands of time corrupt him.
* In TheSims, this can happen if a Sim drinks the yellow potion of the potion-maker machine.
** In ''TheSims2'', it happens to a Sim resurrected with the Resurection machine with a sum of between 4128 § and 8512 §. You know this [[SuperOCD controlled]], [[ShrinkingViolet shy]], [[TheCutie kind]], [[{{determinator}} energetic]] and [[TheComicallySerious serious]] TeenGenius? Meet the [[{{Narcissist}} confident]], ObviouslyEvil [[FunPersonified party animal]] [[LazyBum who demonstrates as much laziness as a human being and a sloth ''combined'' normally could show in their life]] HighSchoolHustler version of him.
** This can be done via the personality transformation award in ''TheSims3''.

* In ''DextersLaboratory'', Dee Dee is turned into an InsufferableGenius for an episode.

* In ''MyLittlePonyFriendshipIsMagic'', a theory among the fandom is that whenever a character fails to use their talent for cuteness, their personality is somehow reversed.
* ''TotallySpies'' features a town in which rebellious teenagers are turned into docile, serious and polite young people via {{Brainwashing}}. When they are healed, Clover is ''displeased'' by the result on her LoveInterest, Todd, who goes from prim and proper KnightInShiningArmor to self-serving ''[[WhyDidItHaveToBeSnakes musician]]'' and HandsomeLech.

http://static.tvtropes.org/pmwiki/pub/images/Morgana_4_9690.jpg
[[caption-width:350: [[BadassDamsel Old]] [[TheCassandra Morgana]] says she "[[TheCaretaker will take care of it]]", [[DarkActionGirl New]] [[TheBaroness Morgana]] says she "'' will [[OhCrap take care of it]]''"]]

-->"It's funny. It seems like yesterday [[HeWhoFightsMonsters Arcturus]] was the [[WellIntentionedExtremist idealistic]] [[HeroWithBadPublicity rebel]] [[LaResistance crusader]]. [[FullCircleRevolution Now he's]] [[MeetTheNewBoss the]] [[EvilOverlord law]] and [[LaResistance we're]] [[HeroWithBadPublicity the criminals]]."
-->'''Jim Raynor''', ''{{StarCraft}}''

* In ''Series/{{Merlin}}'', [[spoiler:Morgana]] was at first a confident, brave, and always compasive young woman, who didn't make a difference between magicians and non-magicians. After she discovered she was born with a magical nature and would be hunted by Uther and shunned in Camelot, she became insecure and paranoid. Her feelings of isolation and lack of self-worth made her more self-focused. She slowly began seeing everyone in Camelot as an enemy and reinterpreting her relationghips with them. After a bertrayal, she began to feel justified and considered all non-magic users in Camelot as worthless and crual enemies who deserved to die. She then used her insight in their inner life to trap them, manipulate their minds, [[ArsonMurderAndJaywalking and ruin their romantic plotlines]].

[[spoiler:'''Morgana''': As did I.]]
** Though an unwilling example, [[spoiler:Sir Lancelot]] from ''Merlin'' first appeared as a generous and loyal knight with an unconspicuous but significant lack of self-confidence, but being brought back as a shade by Morgana and being forced to integrate the personality she wanted untill he would return in the Spirit World made him behave crually, act as a traitor, and finally, display overconfident HandsomeLech and ManipulativeBastard behaviors towards his NewOldFlame [[spoiler: Guinevere]].
** Speaking of which, one of the points of the show is to introduce us to an impulsive and clumsy teenage servant, a self-conscious ShrinkingViolet, the aforementionned straightforward lady who is a protagonist and a slightly immature prince, and to turn them into a wise [[TricksterMentor trickster mentor]], a [[TheHighQueen High Queen]] with a hint of {{Pride}}, a much more complex and doubtful villain, and a [[TheGoodKing Good King]].

---> '''Arthur'''[[TearJerker :]] [[spoiler:What ''happened'' to you, Morgana ? I thought we were friends.]]
---> [[spoiler:'''Morgana''': As did I.]]

It is of course often closely related to ShadowArchetype and TheCorrupter (she or he delects in this, mostly when it is a case of CorruptTheCutie). It rarely prompts "WhatHaveIBecome" or "I Have Seen the Light", the change often being too brutal to be noticed before it is completed. Expect some surprising OutOfCharacterAlert. Also, this is sometimes tightly linked with MoralityDial and MirrorMoralityMachine for examples where an heel/face and face/heel transformation (along with this trope) are exerted by artificial means by a third party.

---> '''Arthur'''[[TearJerker:]] [[spoiler:What ''happened'' to you, Morgana ? I thought we were friends.]]