Follow TV Tropes

Following

Doppelmerger

Go To

https://static.tvtropes.org/pmwiki/pub/images/rco030_2_8.jpg
It's time for a clash between titans and masters!
Usually a Fusion Dance is between two or more people who often don't have any connections other than romance or a familial relationship. However, there are instances where characters who are technically the same person merge together. This can involve clones, alternate universe selves, different variations from other timelines, or even someone who has been transformed into a doppelganger of another person.
Advertisement:

How this happens may vary:

  • Having two or more versions of the same person in one place causes them to merge against their will as a rule of the setting. This is usually a result of Never the Selves Shall Meet or Only One Me Allowed Right Now.
  • One of the variants wants to merge with one or more of their doppelgangers as part of some plan, perhaps an Assimilation Plot.
  • The doppelgangers all agree to fuse together to defeat a bigger threat.
  • A clone merges with their progenitor and/or other clones so they can become one being with their collective knowledge, powers and skills. This may be a way to avoid an Expendable Clone.
  • The individuals were originally one being who was split or reincarnated into more than one person and need to be reunited.

Depending on how it is used, this trope can be used to explore anything from loss of identity to achieving a sense of completeness with one self.

Advertisement:

Compare Split-Personality Merge, in which multiple personalities within one individual merge into one. This trope can also overlap with Sibling Fusion if the siblings turn out to be one single individual split into two. If the fusion is made up of different timeline variants, this may result in a version of Ripple-Effect-Proof Memory where a character is capable of simultaneously remembering multiple timelines that existed at some point. See also an Alliance of Alternates for alternates of the same person working together as a team. When this is done with multiple timelines or realities, this is called a Merged Reality.


Advertisement:

Examples:

    open/close all folders 

    Animation 

    Anime & Manga 
  • Blood Lad: Fuyumi's mother encounters Bell's demon mother, Neyn, who turns out to be her doppelganger from the demon realm. This meeting results in the two women unexpectedly merging together. Fuyumi's father Yagani decides to let Heads, the husband of Neyn's demon half, take her away from him for the sake of his daughter's safety and future since she wouldn't be able to have a normal life with a Human-Demon Hybrid mother and a half-sister with teleportation magic.
  • Digimon Adventure 02: Revenge of Diaboromon: Diaboromon creates multiple clones of himself in the form of his baby stage Kuramon and sends them out into the human world. When Omnimon, Angemon and Angewomon destroy Diaboromon in the internet, the Kuramon in the human world fuse into Armageddemon, an alternate, more powerful mega form of the Diaboromon line.
  • Dragon Ball:
    • Dragon Ball Z:
      • Piccolo and Kami were once one being before being split apart. During the Android Saga, the two become one again in the hopes that their combined power will be enough to deal with the Androids and Cell.
      • After expelling all the evil from his body, Majin Buu ends up fighting and losing his evil side who turns him into chocolate and eats him, giving way to Super Buu.
    • Dragon Ball GT: Super Android 17 is a fusion between the regular Android 17 and Hell Fighter 17, a robotic duplicate of the former created by Dr. Gero and Dr. Myuu.
    • Dragon Ball Super: Fused Zamasu is a Potara fusion between Future Zamasu and Goku Black, the latter being another version of Zamasu who stole Goku's body.
  • Naruto:
    • A unique quirk of Naruto's Shadow Clone technique is that when he dispels and reabsorbs his clones, he also gets any information they discovered that he couldn't see in his real body. His mentors decide to have him use hundreds of the Shadow Doppelgangers to practice the same techniques all at the same time and thus accelerate his training.
    • White Zetsu clones have shown the ability to merge into a more monstrous form.
  • One-Punch Man:
    • Black Sperm can split into countless copies and recombine again. The copies can also merge permanently to create a new and more powerful form, with only one of the copies' consciousnesses surviving.
    • When a version of Saitama from a Bad Future travels back in time and averts the events that led to his timeline, he and the past Saitama merge once he's done, forgetting everything that happened to the future Saitama in the process. Since the future Saitama is naked and the past Saitama is fully clothed, the merged Saitama ends up with Clothing Damage revealing his junk.
  • In Tenchi Muyo! Ryo-Ohki, Washu convinces Ryoko to absorb Zero Ryoko, allowing her to continue on in her. Ryoko agrees, but just can’t stand the fact that Zero Ryoko was so head over heels for Tenchi and wants the feeling to end soon.
  • Yu-Gi-Oh! ARC-V: Both Yuya and Yuzu end up fused with their respective three dimensional counterparts.

    Card Games 
  • Yu-Gi-Oh!:
    • Blue-Eyes Ultimate Dragon is a fusion monster attained by fusing three copies of Blue Eyes White Dragon. Neo Blue-Eyes White Dragon can be fusion summoned the same way.
    • Twin-Headed Thunder Dragon is a fusion of two copies of Thunder Dragon.
    • Cyber Twin Dragon is fusion summoned with two copies of Cyber Dragon. Cyber End Dragon is fusion summoned using three copies of Cyber Dragon.

    Comic Books 
  • The DCU:
    • Batman (James Tynion IV): Issue #117 reveals that some time before Poison Ivy's last attack on Gotham, The Gardener, fearing Ivy would not survive, made a duplicate of Ivy containing all of Ivy's innocence and hid her away. Some villains tried to use this Ivy duplicate for their own ends but she was rescued by Catwoman and is brought to Ivy by Harley and The Gardener. The two Ivys merge back into one and Ivy finds herself feeling whole again.
    • Legion of Super-Heroes: Triplicate Girl/Duo Damsel has the power to split into multiple bodies. When she re-merges into one body, she gains the memories and knowledge that her divided selves obtained. She is also practiced in the art of "Tri-Jitsu", which involves attacking the enemy in a trifecta with marital arts while splitting and recombining.
    • Superman Reborn: The story's conclusion has the pre-Flashpoint versions of Superman and Lois merging with their respective New 52 counterparts into one being each.
    • Zero Hour: Crisis in Time!: The Post-Zero Hour version of Hawkman is a gestalt of Golden Age Hawkman and Hawkgirl, the Hawk-God and the modern age Hawkman.
  • Marvel Universe:
    • Cataclysm: The Ultimates' Last Stand: Gah Lak Tus fuses his 616 counterpart.
    • Champions: A complicated series of events leads to the presence of two Vivians — one, the original, who was stranded on an alien world and transformed from an android into an organic being, and a second who was built by their father before the first one returned to Earth. In the end, the new Vivian is rendered catatonic after being infected by a computer virus, and the original one ends up transferring her consciousness into her duplicate's body.
    • Guardians of the Galaxy: Moondragon meets another, more heroic version of herself from another universe whose Phyla is also alive. Feeling spiteful and jealous of her doppelganger, Moondragon confronts her and they fight. The heroic Moondragon is victorious, but upon seeing just how lonely and unhappy her counterpart is decides to merge with her. Unfortunately, this also causes the other Phyla to be hostile and resentful towards the 616 Moondragon.
    • X-Factor: Prior to the events of the series, Jamie Madrox spawned several duplicates and sent them across the world to acquire a variety of skills and knowledge, then reabsorb them to acquire what they learned. Throughout the series, Jamie encounters a few rogue duplicates which he also has to reabsorb. This trope gets played for tragedy when Jamie involuntarily reabsorbs his and Theresa's son as he qualifies as a duplicate of Jamie's.
    • X-Men: The End: It is revealed that Madelyene Pryor isn't just a clone of Jean Grey, but also the aspect of Jean that truly loved Scott, and her no longer being part of Jean is why her and Scott's marriage failed. Madelyene transforms into energy and fuses with Jean, resurrecting her yet again.
  • Scott Pilgrim vs. The World: Scott is accosted by Nega-Scott in the run-up to his final confrontation with Gideon. Nega-Scott represents his personal flaws, insecurities, and repressed memories about his failed love life, so when Scott is finally able to overcome his dark side, he doesn't do so by overpowering Nega-Scott; he does so by accepting his flaws as a part of who he is. This results in Nega-Scott merging with Scott, leaving him at peace and itching for his fight with Gideon.
  • Sonic the Hedgehog (Archie Comics): Issue #150 had Tails teaming up with all of his counterparts from across the multiverse to stop Master Mogul. They succeeded by merging into Titan Tails, a larger, more muscular version of Tails.

    Fan Works 
  • Infinity Train: Seeker of Crocus: Once Specter reunites with his partner Easter — essentially a copy of Specter himself made from a lightning bolt — their forgiveness and willing to try again makes a new fusion called Harmonious Storm.
  • Loud Heroes: Leni has the power to make clones of herself, which can then walk back into her body.
  • Pony POV Series: In the Dark World arc, Twilight meets Minty Pie and it is discovered that they are both reincarnations of G3 Minty note . When they make physical contact they start to involuntarily fuse together. Fortunately, they break apart in time to avoid anything permanent, and while shaken, they're fine afterwards.
  • Shattered Skies: The Morning Lights: The manga/Crystal and 90s anime versions of Rei Hino/Sailor Mars merge into one being when 90s!Rei is mortally injured in battle and Manga!Rei touches her hand. The resulting fusion has flaming eyes and red, smoking streaks in her hair. She also "flickers" in and out of existence when she's under stress, and manifests wings of fire as Sailor Mars.

    Films — Live-Action 
  • Les Visiteurs: Godefroy's ring forcibly and violently merges with its temporal duplicate.
  • MirrorMask: This is Neil Gaiman's interpretation of the ending. Helena escapes Anti-Helena's attempt to destroy the imaginary world and puts on the Mirrormask, which yanks Anti-Helena into a window portal and merges them together, giving both what they want. The White Queen awakens in the imaginary world, Helena gets her mother back, and Anti-Helena is able to "run away and join real life."
  • Time Cop and Timecop 2: The Berlin Decision: An encounter between an individual and their past self will cause the two to involuntarily fuse into a horrific melding of flesh.
  • Zathura: When Walter wishes for the Astronaut to have his little brother back, a duplicate of Danny appears. This is what reveals that the Astronaut is actually an adult Walter from an alternate timeline. After he thanks Walter for bringing back his own Danny, he dissolves into a cluster of stars that enters Danny, representing the two timelines becoming one again.

    Literature 
  • Animorphs #32: The Separation: Rachel is split into two individuals as a result of being cut in half after morphing into a starfish. Erek King figures that they can re-merge themselves by having them acquire and morph into each other while touching.
  • Kiln People: People in the story's setting can copy their brainwaves onto clay "dittoes" that only live about a day and put them to work. If the golem gets back to the original before expiring, or their head is put on ice quickly enough, they can merge back. The main character, a private investigator, usually merges his dittoes, and implants analog voice recorders in them in case they don't make it back in time. However most blue collar workers (and sex workers) don't bother merging with their dittoes.
  • Post Self: The uploaded can create copies called "forks", and forks can create their own forks. When a fork quits, their memories are merged back into any down-tree instances they have, though not to any of their own forks, and if they want to keep running they can create a new fork and immediately quit to send their memories down-tree. In the second book, the progenitor of the 100-strong and nearly 200-years old Ode clade calls all her surviving forks together to fork and merge their forks with her, and quits after receiving all their memories.
  • The Rifter: Kahlil arrives in a version of Basawar where his counterpart is dead. He finds and merges with the bones of said counterpart.
  • Skulduggery Pleasant: Magicians can animate their reflection using symbol magic if they need a stand in, and then later reabsorb the memories of the reflection back into themselves. Another example comes up later when Darquesse is split from Valkyrie, and tries to absorb her to become complete again. While not a straight example, she hijacks the body of their reflection in order to do it.
  • There Is No Epic Loot Here, Only Puns: Nina can split herself into multiple clones, each with a portion of her personality. Unfortunately, this means that the more she subdivides, the less of a complete person each clone is. Fortunately, the clones can absorb each other to reintegrate their personalities and memories — and doing so gives a pleasant buzz, so even if they have degraded into near-mindlessness, they'll instinctively recombine sooner or later.
  • Thief of Time: Due to the personification of Time getting (understandably) stressed out during labour, her son was born twice, resulting in twins (Lobsang Ludd and Jeremy Clockson) who were supposed to be just one person. When they first meet each other and touch hands, they fuse back together, retaining the memories and identity of both.
  • A Wizard of Earthsea: The creature Ged accidentally summons a creature that turns out to be his own dark doppelgänger, sharing his own True Name. Ged defeats it by merging with it.

    Live-Action TV 
  • Doctor Who: In "The Vanquishers", the Doctor gets split across three places, not fully in any place, but able to psychically communicate with her other selves in a limited way. The personification of Time pulls the three Doctors back together at the end of the episode, though it's more of an act of condescending pity than kindness.
  • The Flash: While trying to evade a missile fired at him by Nicholas Pike, the Flash is transported ten years into the future where Pike has taken over Central City. The Flash then goes back to the exact moment just before the missile launch to stop it, then merges with his past self to deal with Pike.
  • Red Dwarf: "Officer Rimmer" has Rimmer accidentally creating a Rimmer Monster, an amalgamation of Rimmer clones caused by a bio-printer paper-jam. On top of this, the goal of the Rimmer monster is to merge with every other Rimmer on board Red Dwarf, up to and including the original Rimmer.
  • Smallville: The show has two characters named Zod. One is a Kryptonian who became a disembodied spirit after being trapped in the Phantom Zone and the other is a clone of the original Zod. After the Zod clone is banished to the Phantom Zone, the two Zods meet and merge into one.
  • Star Trek: The Original Series: In one episode, a Teleporter Accident results in both Captain Kirk and a doglike alien getting turned into two individuals, one of whom has all of their negative traits. They eventually get fused back together in the transporter, and while the alien dies (ostensibly from too much fear), Kirk survives.
  • Supergirl: In the Season 3 finale, Kara comes into contact with Black Kryptonite, which creates a clone of her. The clone is found in Kaznia and raised as a a loyal communist soldier named Red Daughter. After some time as an antagonist in Season 4, Red Daughter sacrifices her life to save Supergirl and remerges with her.
  • Superman & Lois: Ally Alston, the Big Bad of Season 2, plans to fuse herself and everyone else with their counterparts from Bizarro Superman's Earth to create a Merged Reality. She succeeds in merging with her Bizarro Earth counterpart in episode 10, making her a Physical God powerful enough to drain Superman's powers.

    Roleplay 
  • Dino Attack RPG: The Chaos working with Kotua is revealed to be a synthetic copy created by ShadowTech, who manipulates Kotua into freeing the real Chaos from its Mayan prison. After the two Chaoses briefly work together, they willingly merge into a single entity known as Alpha Chaos.

    Tabletop Games 
  • Changeling: The Lost: A Changeling and their Fetch — the fae construct left to impersonate them when they were first kidnapped by The Fair Folk — can attempt to merge together. It is a long, difficult process of coming to understand each other, but it gives the Changeling the Fetch's memories and a boost on the Karma Meter.
  • Dungeons & Dragons: In 5th Edition's sourcebook Fizban's Treasury of Dragons, true dragons are have "echoes", alternate versions of themselves across the various iterations of the Material Plane who may be identical to them or vary in some characteristics. After reaching the apex of their natural growth, the only way for a dragon's power to increase further is to locate their echo and either fuse with or consume them. Dragons who successfully subsume multiple echoes in this manner grow to become great wyrms, beings of incredible power and the closest that most mortals will get to being gods.

    Video Games 
  • Bayonetta 3:
    • Lukaon fuses his soul and that of every other Luka in the multiverse into the body of the prime Luka, allowing the latter to gain control of his faerie powers.
    • In the final battle, the Bayonettas from the first and second games arrive to aid the main Bayonetta of this game. When it becomes clear they cannot beat Singularity individually, all three Bayonettas temporarily merge together.
  • Chrono Cross: To get the eponymous Villain-Beating Artifact, you have to combine the Dragon's Tear with a duplicate from the Alternate Universe you keep jumping to.
  • Final Fantasy XIV:
    • The Ascians' plan is to do this to every single living thing on the planet, their ultimate goal being to undo the Sundering that split their "perfect world" into the Source and its thirteen reflections. But to do this to entire worlds requires enormous planet-wide Calamities that will inevitably kill all life on the reflections as their aether is absorbed into the Source.
    • The Warrior of Light willingly merges with Ardbert, their counterpart on the First to oppose Emet-Selch in the climax of the 5.0 story. As the reincarnations of the sundered soul of Azem, their combined strength allows the Warrior to contain the Flood of Light within their body long enough to weaponize it into a Blade of Light powerful enough to kill Emet-Selch.
  • Inscryption: In Act 1, the Mycologist can merge duplicates of the same card, combining their stats and sigils.
  • Mortal Kombat:
    • Mortal Kombat: Armageddon:
      • In Noob Saibot's arcade ending, he has an encounter with his human incarnation Sub-Zero who intends to reclaim Noob's half of their divided soul. After a fight that ends in a draw, the two decide to merge into an entirely new being that is neither Sub-Zero nor Noob Saibot.
      • Mileena is a Kitana's half-Tarkataan clone. In her arcade ending, she temporarily merges with Kitana and when they separate, they discover they have switched features, with Mileena having Kitana's beautiful face while Kitana has Mileena's Tarkatan teeth. Mileena impersonates Kitana and has the real Kitana imprisoned.
    • Mortal Kombat 11: To defeat Kronika, Raiden uses his magic to fuse himself, the past human version of Liu Kang and the Revenant Liu Kang together, creating Fire God Liu Kang. Armed with Raiden's power, past Liu Kang's skill and Revenant Liu Kang's knowledge of Kronika's plan, Fire God Liu Kang becomes the ultimate weapon against the time goddess.
  • Onimusha 3: Demon Siege: Samanosuke goes back in time and finds the corpse of his alternate-timeline self who was killed by Nobunaga. When Samanosuke touches the other Samanosuke's Oni Gauntlet, the two are merged together and the combined power from the paradox enables Nobunaga's defeat.
  • Planescape: Torment:
    • During the finale, the main protagonist's personality is shattered and he has to convince the duplicates to merge back with him so that he can continue his quest. One is particularly persistent about making the protagonist merge with him.
    • The Paranoid Incarnation, who sounds just like what you'd expect, came to the conclusion that future incarnations (who were merely new personalities assumed through Amnesiac Dissonance) were actually evil spirits looking to steal his body. He therefore spent an inordinate amount of time laying traps for people who matched his physical description, which he would know to avoid but the future incarnations wouldn't. This in turn is a plot-point and also helps convince him to merge by speaking in a language only he and the player speak (if the correct quest for this is done) thus showing him the player is someone to trust because he and TPI are the same person.
  • Prince of Persia: Early into the game, the Prince has to break a Magic Mirror blocking his path. This inadvertently creates Shadow Man, an evil version of himself. Late into the game, the Prince confronts this doppelgänger, who can't be fought traditionally, due to their connection meaning the Prince takes damage and dies whenever Shadowman does. The solution to this is for the Prince to sheathe his sword, which makes Shadow Man do the same, and the two merge into one.
  • Shin Megami Tensei: Nocturne: During the first fight against Spectre, it will begin the fight by casting "Gathering" to summon 5 copies of itself. A few turns into the fight, it will merge with its copies to create a giant Spectre. The fused form can be made weaker by defeating some of the copies before it occurs.

    Webcomics 
  • The Adventures of Dr. McNinja: In college, Dr. McNinja cloned himself multiple times, and his clones scattered to different schools to get degrees in different fields. After graduating, all but one (who was late to the event) fused back together, forming one Doctor with all of their combined knowledge.
  • Flaky Pastry: Nitrine discovers how to create perfect duplicates of herself that have the ability to merge back together.
  • Gunnerkrigg Court: Loup screwing around with time results in two copies of Antimony Carver: one who returned to the Court immediately after a visit to Gillitie Wood, and one who tried to return immediately but instead arrived months later. After enough chapters for two Annies to become the new status quo, Zimmy uses her even-less-understood powers to abruptly fuse both Annies back together.
  • Grrl Power: Harem has the ability to split herself into up to five duplicates. By merging together, she increases her strength and durability to superhuman levels, but she dislikes doing this because her brain is set to process sensory input from multiple sources so she feels like she's half-blind if she doesn't have at least two of her active at once.
  • Kid Radd: Sheena ends up merging her code with that of her "sister"/sequel counterpart after the sequel ROM the former visited was destroyed. As a result, she can switch between her invincible NPC mode and battle mode at will. Sequel Sheena's spirit also occasionally makes herself known in situations where the two versions have a difference of opinion.
  • Problem Sleuth: Something like this finally happens to Ace Dick. Through a combination of Temporal Duplication and Alternate Self, there are three Ace Dicks running around. The original swallows Zombie Ace Dick and Fiesta Ace Dick to absorb their strength. He appears the same as ever.
  • Schlock Mercenary: Schlock's Bizarre Alien Biology causes him to involuntarily merge with his time clone.

    Web Videos 
  • The Spoony Experiment: This is the eventual result of a rather convoluted series of events. When Spoony is killed, Linkara creates a clone of him made from the original Spoony's remains. Eventually, the original Spoony returns to life and the clone uses the transporter of Linkara's ship to fuse with the original.
  • What if Gohan Trained After the Cell Games?: Part 3 looks at how the Future Trunks saga from Dragon Ball Super would play out with Gohan in place of Goku. After Future Zamasu and Gohan Black merge into Fused Zamasu, Gohan and Future Gohan merge into Ultimate Saiyaman to fight them.

    Western Animation 
  • Alphablocks: The main characters are letter-themed creatures who spell words. When they need more than one of a letter, the corresponding Alphablock will split into two and then become one when the copy is no longer needed.
  • American Dragon: Jake Long: "The Doppelganger Gang" has Jake use a magic potion to make copies of himself to balance his magical duties and his personal life. Unfortunately, he unintentionally creates an evil clone using the wrong potion. The clone then absorbs the other Jakes and attempts to do the same to the real Jake himself.
  • Danny Phantom:
    • Ghosts and ghost-human hybrids can duplicate themselves using their ectoplasmic energy. The clones gain all the characteristics, memories, and abilities of the original, but are self-thinking (and grow somewhat weakened the more copies they make). The original can re-absorb their clone when need, and clones will automatically be reabsorbed if they are significantly weakened or pushed together with enough force. Ghost-human hybrids in particular are able to do this in both forms
    • In "Identity Crisis", Danny uses the Fenton Ghost Catcher to split his human and ghost halves so he can better catch ghosts while having some free time. This results in a Literal Split Personality, where the human half is fun and lazy while the ghost half has major Chronic Hero Syndrome. When the two try to come back together the way Danny would normally do with his duplicates, however, it doesn't work, and going through the Ghost Catcher again just turns them into two lesser-powered halfas. It isn't until they go through the "Merge" side of the Ghost Catcher that they become one Danny again.
  • Oggy and the Cockroaches: When travelling to the past, characters merge with their past selves upon meeting to avoid this problem.
  • Sonic Boom: In "Multi-Tails", Tails uses a machine to split himself into five duplicates to lighten his work load. However, the process also divides Tails's intelligence by five among the clones. Tails's friends try to reverse it, only to create more Tails clones by mistake. It takes Eggman to point out they used the wrong setting and they reunite all the Tails clones into one.
  • Steven Universe:
    • Homeworld fusions are only allowed between the same gem-type. Rubies, a solider caste who look nearly identical to each other, often combine into one large Ruby to defeat their enemies.
    • In the Season 5 finale "Change Your Mind", Steven's gem is forcibly removed from his body by White Diamond, and it forms a pink Gem version of him. The two recombine back to the full Steven with a dance.
  • Super Robot Monkey Team Hyper Force Go: In "Versus Chiro", Mandarin creates numerous clones of Chiro, all of which are unstable due to lacking the Power Primate. Mandarin decides to fuse all of his remaining Chiro clones into a single monstrous blob and sets it loose on the heroes.
  • What If?: In "What If... Doctor Strange Lost His Heart Instead of His Hands?", Strange Supreme forcibly absorbs the Good Strange (created as a result of the Ancient One splitting Strange Supreme's resident alternate universe into two timelines) in order to restore his divided power so he can complete his goals.
  • Where on Earth Is Carmen Sandiego?: Time travelers have demonstrated the ability to fuse with their past selves if they come close enough.
  • W.I.T.C.H.: Astral Drops are a term for duplicates of the Guardians created using the Heart of Kandrakar, while Altermeres are Astral Drops who become sentient beings. In "H is for Hunted", Will creates an Astral Drop to do her chores for her, but it is turned into an Altermere by Nerissa. When the Altermere takes a blast from Narissa meant for Will, she re-absorbs her back into her body so her memories and experiences can live on. Unfortunately, these memories include the Altermere witnessing Will's mother kissing her teacher Professor Collins.

Top