History Main / SplitPersonalityMerge

* ''ChangelingTheLost'' has an EnemyWithout variant with regards to the fetch, an impostor made from a fragment of the changeling's soul to fill their place after they're taken by [[TheFairFolk the Gentry]]. Most changelings are just content to kill their fetch - either in an attempt to reclaim their life or destroy one of "their" tools - but it's possible for a changeling and a fetch to come to a deep, intricate understanding of how each one reflects aspects of the other's personality and being. If that happens, the changeling and fetch merge into one being, with the changeling's [[SanityMeter Clarity]] going up a level. Keep in mind this is a long, difficult process, and odds are other changelings won't look on you so kindly for attempting it...

* [[{{Understatement}} It's not fully explained]], but this happens in the Dimensional Vortexes in the DS re-release of ChronoTrigger.

* The DoctorWho comic TheTenDoctors demonstrates a rare version of the trope. As the title suggests, the Doctor's [[TheNthDoctor regenerations 1 through 10]] all band together to save the universe. [[spoiler: At one point, Ten gets captured by the Daleks and is brainwashed into 'Dalek Tor'.]] In order to defeat the programming there is a BattleAtTheCentreOfTheMind where the Doctors all form one persona- an amalgam of his multiple personalities.

* Often overlooked, in ''{{Yu-Gi-Oh}}'', Yugi and the pharaoh usually combine their minds when dueling. The reason this is overlooked is because Yugi merged with the pharaoh looks pretty much exactly like the pharaoh all by himself.

[[PlayingWith/SplitPersonalityMerge The Playing With page]].

* The Green Goblin has undergone this after his 1996 comeback, the Goblin previously veering between being an outright SplitPersonality of Norman Osborn, a psychotic break from reality and the power fantasy of an unstable CorruptCorporateExecutive who just won the SuperpowerLottery. Naturally, the amalgation of a mentally ill white collar criminal with his homicidal maniac alternate persona did not exactly make things better- the new Norman Osborn was a MagnificentBastard CompleteMonster who developed particularly twisted views on his emnity with SpiderMan and graduated from millionare industrialist to head of SHIELD (because HumansAreMorons). Recently, the Goblin has shown signs of making a comeback, in the form of delusions and homicidal mania.

->"I want you to send a message, to your bosses, to the people who have my family, just three words..."We are Coming." Send it. Sign it, "Jekyll--and Hyde.""
-->-- '''Tom/Hyde''', ''{{Jekyll}}''

->"I'll be fine. I won't try to hide my weakness or jealousy anymore. I know I'm full of contradictions. But all things considered, I love myself and Misa. So I think I'll be fine."
-->-- '''Misao''', ''PrettySammy''

* ''KingdomHearts 2'', with Sora and [[spoiler: Roxas]]. To make things even messier, [[spoiler: Xion]] comes into the mix later.
** [[AnachronicOrder Earlier, technically]].
** [[spoiler: And in ''BirthBySleep'', it's revealed that Ven also merged his heart with Sora's heart and in fact had been in him throughout almost his entire life and all of the Kingdom Hearts games long before Roxas and Xion came into being. However it might not be the case here since Sora's really only holding his heart for safe keeping and isn't receiving anything from Ven. However, if what the endings of ''coded'' and ''Birth By Sleep'' seem to be implying are true, the merges are only temporary, and the plot of the upcoming games will most likely focus, in part, on giving Ven, Roxas and Xion their own bodies]]
*** [[spoiler: Keep in mind also that Ventus also merged with Vanitas, the [[MadeOfEvil personification of his heart's darkness]]. So Sora's about five different people at the end of KH2. Yeah, it's kind of a MindScrew.]]

*** [[spoiler: Keep in mind also that Ventus also merged with Vanitas, the [[MadeOfEvil personification of his heart's darkness]]. So Sora's about five different people at the end of KH2. Yeah, it's kind of a MindScrew.

* A major inversion in {{Homestuck}}. [[spoiler: Gamzee]] begins with the stable merged personality. Then it splits, and both of the resulting personalities are AxCrazy.

* Happens to [[spoiler: Sasha and Abby when Sasha dies while mentally linked with Abby]] in the Metamor City novel ''Making The Cut.''

* In {{Bleach}}, Ichigo's power manifested in the forms of Zangetsu, his Zanpakuto, and his Inner Hollow. In time, [[spoiler: he comes to dominate both of them, learning how to use their power for himself. He also tends to take on aspects of their personality and appearance when using their power, such as the coat he acquires in Bankai mode and the mask and personality changes that accompany his hollowfication]].

* Susannah in ''TheDarkTower''. She originally alternated between the personalities of Detta (kind of psycho and seriously badass) and Odetta (a wonderful person, but often completely useless). Forcing them to notice each other led to them merging into Susannah, who keeps Detta's ferocity and Odetta's kindliness and feelings for Eddie. Still, the merge isn't perfect; at one point, Susannah has to let Detta take over again because she learned a lesson Odetta never did.

* Piccolo and Kami of ''DragonBallZ'', who had become a LiteralSplitPersonality decades earlier. (With a little {{Reincarnation}} in between. It's complicated.) Not to be confused with the time [[FusionDance Piccolo fused with Nail]], a completely different and unrelated Namekian.

* Piccolo and Kami of ''DragonBallZ.'' Not to be confused with the time [[FusionDance he fused with Nail]], a completely different and unrelated Namekian.
* In ''{{Gundam00}}'', Allelujah Haptism temporarily merges with his violent SplitPersonality Hallelujah Baptism to becomes "the SuperSoldier" with the piloting skills of two men, or [[FanNickname as fans call him]], "Doublelujah".

* Doc Samson once pretended to have done this to the Hulk and Bruce Banner, via EpiphanyTherapy. But [[FailureIsTheOnlyOption eventually the change in premise became too much of a problem for the Hulk's title]], and the writers made use of the fact that Therapy Does Not Work That Way to establish that Samson had really just created a new, if more stable, alternate.

* Emil in ''TalesOfSymphonia [[TalesOfSymphoniaDawnOfTheNewWorld Dawn Of The New World]]'' might have done this.

* In ''{{Discworld}},'' the titular character from ''[[{{Discworld/ThiefOfTime}} Thief of Time]].''
** This one's a confusing case because the personalities involved, [[spoiler: Jeremy Clockson and Lobsang Ludd,]] are the half-human sons of the AnthopomorphicPersonification of Time itself, and due to a hiccup of sorts, is the same person born twice. Their experiences and upbringing from that point onward cause them to lead very different lives, but they do eventually merge into a single identity.
*** That's actually SplitAtBirth, a double personality should mean they're both in the same body.
* Similar to the ''Thief of Time'' example, the central characters of the book ''{{Doppleganger}}'' are one witch split into two bodies. Upon their merger, they possess "Void Magic" that no one else can use because witches typically killed these Dopplegangers at birth.

* Often overlooked, in ''{{Yu-Gi-Oh}}'', Yuugi and the Pharaoh usually combine their minds when dueling. The reason for the overlookage is probably because Yuugi merged with the Pharaoh looks pretty much exactly like the Pharaoh all by himself.