History Main / DoppelgangerGetsSameSentiment

* In ''ComicBook/WhatIf'' #19, ''What if ComicBook/TheVision of ComicBook/TheAvengers Conquered the World?'', in scenario where Vision conquered the world by allying with supervillains, eventually becoming a GalacticConqueror leading an army of clones of the villains against the Shi'Ar Empire. As his forces are winning, clone of ComicBook/DoctorDoom promises Empress Lilandra to spare her people if she surrenders. She does, as she is aware that original Doom [[IGaveMyWord always kept his word]]. Once her army is disarmed, the clone says that was the first trait Vision had removed when he cloned Doom and kills her.

* Acknowledged to various degrees in ''ComicBook/{{Exiles}}'', which features various alternate heroes travelling through the multiverse; in their first mission as a team, they nearly failed in their mission because they assumed that the 'teacher' they had to help was the local Charles Xavier, only learning after they released him from prison that this version of Xavier was a villain. This twist led to the team's decision to make Blink- who originated from the ComicBook/AgeOfApocalypse reality- to be the team leader, as she would be less likely to fall victim to this as her reality was so distant from the realities of the other members that she would likely have less of an attachment to the counterparts of the heroes-turned-villains they might face.

* ''Franchise/TheFlash'': Invoked to a degree regarding Inertia, a clone of Bart Allen, the original Impulse, second Kid Flash and the fourth Flash. While Inertia's status as Bart's clone doesn't completely get him the same sentiment as the original, after Inertia killed Bart prior to Wally West's return from the Speed Force after ''ComicBook/InfiniteCrisis'', when Wally captured Thad in revenge, Wally acknowledges that, even though Inertia is "an irredeemable sociopath", the fact that he was a piece of Bart was the only thing that stopped Wally crossing the line and killing him outright.

** This is explored in the two-parter "[[Recap/DoctorWhoS32E5TheRebelFlesh The Rebel Flesh]]" and "[[Recap/DoctorWhoS32E6TheAlmostPeople The Almost People]]". The Doctor comes upon a factory where employers use "flesh avatars" for dangerous work, but trouble starts when the avatars or "gangers" [[CloneAngst become sentient and start protesting their individuality to their originals]]. The episodes explore [[WhatMeasureIsANonHuman if the gangers should be considered real or not]], with the Doctor insisting they are while the factory workers believe they are not. The Doctor exploits this using his own ganger, by switching his IdenticalTwinIDTag and seeing if Amy (who knows the Doctor better than anyone else) could notice the change. Turns out she couldn't, proving the ganger and the Doctor were one and the same person.

*** After the [=TARDIS=] lands in a parallel universe in "[[Recap/DoctorWhoS28E5RiseOfTheCybermen Rise of the Cybermen]]"/"[[Recap/DoctorWhoS28E6TheAgeOfSteel The Age of Steel]]", Rose desires to see her father Pete's counterpart -- who in the prime universe died when she was an infant, whereas his counterpart is still alive but never had any children. The Doctor pressingly insists, "That is not '''your''' Pete, that is '''a''' Pete" and tries to dissuade Rose (to little effect). Rose has to be dissuaded from going back to save "her mum" from death by the Doctor reminding her the doppelganger isn't her mother, and later she's horrified by [[spoiler:her mother's counterpart's [[UnwillingRoboticisation conversion into a Cyberman]]]] and afterwards needs to visit her real mother to get over it. Both the alternate versions of Rose's parents seem to [[InTheBlood subconsciously]] ''know'' of their relation when they interact with her, without having any conscious knowledge of who she is. Ultimately, Rose comes clean to the alternate Pete, but in contrast to his prime counterpart, he [[ThatThingIsNotMyChild rejects her]]. To be fair, he was childless and had just lost his Jackie in a horrific way, leaving her shaken.

** This is explored in the two-parter "[[Recap/DoctorWhoS32E5TheRebelFlesh The Rebel Flesh]]" and "[[Recap/DoctorWhoS32E6TheAlmostPeople The Almost People]]". The Doctor comes upon a factory where employers use "flesh avatars" for dangerous work, but trouble starts when the avatars or "gangers" [[CloneAngst become sentient and start protesting their individuality to their originals]]. The episodes explores [[WhatMeasureIsANonHuman if the gangers should be considered real or not]], with the Doctor insisting they are while the factory workers believe they are not. The Doctor exploits this using his own ganger, by switching his IdenticalTwinIDTag and seeing if Amy (who knows the Doctor better than anyone else) could notice the change. Turns out she couldn't, proving the ganger and the Doctor were one and the same person.

* ''ComicBook/BackToTheFuture'': Discussed in the "Who is Marty [=McFly=]?" arc. After realizing the truth about the alternate Martys [[spoiler: (that they're actually androids)]], Doc shoots them to protect his Marty. He reassures the teen that what he's doing is NotWhatItLooksLike, appealing to his trust that he wouldn't hurt him or any timeline's version of him. This accidentally helps clear up Marty's [[CloningBlues existential crisis]].

** This is explored in the two-parter [[Recap/DoctorWhoS32E5TheRebelFlesh "The Rebel Flesh"]] and [[Recap/DoctorWhoS32E6TheAlmostPeople "The Almost People"]]. The Doctor comes upon a factory where employers use "flesh avatars" for dangerous work. But trouble starts when the avatars or "gangers" [[CloningBlues become sentient and start protesting their individuality to their originals]]. The episodes explores [[WhatMeasureIsANonHuman if the gangers should be considered real or not]], with the Doctor insisting they are while the factory workers believe they are not. The Doctor exploits this using his own ganger, by switching his IdenticalTwinIDTag and seeing if Amy (who knows the Doctor better than anyone else) could notice the change. Turns out she couldn't, proving the ganger and the Doctor were one and the same person.

* In the ''WesternAnimation/JusticeLeague'' episode "[[Recap/JusticeLeagueS2E11And12ABetterWorld A Better World]]", the [[KnightTemplar Justice Lord]] version of Batman panics [[SickCaptiveScam when Flash fakes flatlining by speeding up his heart rate]], because the Justice Lord universe's version of Flash was killed by ComicBook/LexLuthor, prompting the team's StartOfDarkness.

* In the online ''Franchise/DoctorWho'' audio story "[[https://www.youtube.com/watch?v=VSfOgnDhmRc Shadow of a Doubt]]", Benny Summerfield meets Sister of Mine, the CreepyChild with the balloon from the TV episodes "[[Recap/DoctorWhoS29E8HumanNature Human Nature]]" and "[[Recap/DoctorWhoS29E9TheFamilyOfBlood The Family of Blood]]", and blames her for the actions of Aphasia, the CreepyChild with the balloon from the ''Literature/DoctorWhoNewAdventures'' novel ''[[Recap/DoctorWhoNewAdventuresHumanNature Human Nature]]''. The story seems to imply she's not entirely wrong to do so.

* ''VideoGame/LegacyOfTheVoid'' brings back Fenix (who was KilledOffForReal in ''Brood War'') to the joy of Artanis, who fought alongside him then. Unfortunately, it turns out this is a robotic copy of Fenix from ''before'' the Brood War (taken via BrainUploading between his injuries and his return as a Dragoon in the original ''{{VideoGame/Starcraft}}''), meaning there's none of his CharacterDevelopment or OddFriendship with Raynor. Eventually the robot-Fenix takes on a new name to get out of his original's shadow and become his own character rather than what everyone expected of him.

[[folder:Web Comics]]

* In the ''WesternAnimation/DarkwingDuck'' episode "Life, the Negaverse, and Everything", Darkwing finds himself in an alternate universe. [[PapaWolf He immediately becomes as fiercely protective of Nega-Gosalyn as he is of his own.]]
* In ''WesternAnimation/JusticeLeague'', the [[KnightTemplar Justice Lord]] version of Batman panics [[SickCaptiveScam when Flash fakes flatlining by speeding up his heart rate]], because the Justice Lord universe's version of Flash was killed by ComicBook/LexLuthor, prompting the team's StartOfDarkness.

* ''Film/StarTrek2009'': When Spock Prime meets Kirk, he greets him with [[Film/StarTrekIITheWrathOfKhan "I have been, and always shall be, your friend."]]. Unfortunately, Kirk's confused since he and Spock aren't friends in this timeline ([[FireForgedFriends at least not yet]]).

* ''Film/StarTrek2009'': When Spock Prime meets Kirk, he greets him with [[Film/StarTrekIITheWrathOfKhan "I have been, and always shall be, your friend."]].

* In ''Film/GuardiansOfTheGalaxyVol3'', Quill alternates between insisting alternate-timeline Gamora is actually like the one he remembers ''really'', and blaming her for ''not'' being more like orignal-timeline Gamora. Since she barely knows him, and has been through precisely ''none'' of the experiences that shaped their relationship, she finds this irritating beyond belief.

* ''Film/DoctorStrangeAndTheMultiverseOfMadness:'' Doctor Strange is understandably wary to run into an alternate version of Mordo, since the Mordo he knows is a crazed villain. [[spoiler:This suspicion proves warranted when Mordo drugs his tea.]] He's also alarmed to run into an alternate version of Christine Palmer, who he has feelings for, but who has never met him. Strange is also on the receiving end when the Illuminati assume he'll act like the Strange they knew [[spoiler:and killed]], and act accordingly.

* Once Aquaman of ''WesternAnimation/YoungJustice'' learns the man who "thinks" he's the original Orm. Is in fact a clone of his brother, Aquaman continues to treat the clone as if they are brothers.

* In a DeletedScene in the ''Series/RedDwarf'' episode "Cassandra", when Rimmer wants Kryten to be killed in his place, Kryten appeals to all the adventures they've had together. Whether this would have worked on hologram Rimmer is debatable, but the resurrected version just points out "I've only known you a week. I don't give a stuff."

* ''Series/{{Arrowverse}}'':

** ''Series/{{The Flash|2014}}'':

'''Melissa:'''...I don't think that's the mayor.

*** In "Shore Leave", Kirk knows the "[[LoveInterest Ruth]]" and "[[TheBully Finnegan]]" he meets cannot be the real deals (for one thing, Finnegan hasn't aged since the Academy) but he still enjoys indulging his emotions with each of the duplicates (having a romantic time with Ruth and whaling on Finnegan).
*** Implied in "Mirror, Mirror". Kirk shows more softness than one would expect toward the Mirror Spock, who (despite being better than Mirror Kirk) is as ruthless as one would expect from the Mirrorverse. This probably has something to do with [[HeterosexualLifePartners his close relationship]] to his own Spock. Kirk even comments on how alike they are.
*** Another example appeared in the script of "Mirror, Mirror" and the James Blish novelization but not the episode. In this version, Mirror Chekov hit on Uhura, not Mirror Sulu, and when Uhura got home, Chekov Prime suffered her displaced irritation, [[BewilderingPunishment much to his confusion]].
** ''Series/StarTrekTheNextGeneration'': In the episode "Parallels" (where Worf encounters many alternate universes) the Primeverse ''Enterprise'' briefly receives a transmission from an alternate-universe version of Riker, now in command after Picard died during the events of "The Best of Both Worlds". He expresses his happiness to see Picard, saying that it's been a while.

*** When Jake Sisko meets the MirrorUniverse counterpart of his deceased mother, he treats her as if she really were his mother. In return, she starts to view him as the son she never had.
*** When Bareil's MirrorUniverse counterpart comes to the main universe, people can't help but give him this treatment. Quark suggests exploiting this trope, which disgusts Mirror!Bareil because it makes him realize that he is so much more like Quark than his counterpart.
** ''Series/StarTrekVoyager'', episode "Deadlock". A NegativeSpaceWedgie splits the ''Voyager'' in two, which the two crews learn only much later. Until then, the actions aboard one ''Voyager'' create disastrous consequences on the other, resulting in the deaths of Harry Kim and the newborn Naomi Wildman. When Vidiians board the undamaged ''Voyager'', its Janeway tells Kim to take baby Naomi and cross over to the other ship before ordering self-destruct. Thus, the Harry and Naomi from then on aren't quite the same as everyone else on the ship, but no one treats them any differently.
** ''Series/StarTrekDiscovery'', episode "Terra Firma Part 1": Mirror Georgiou says that Michael isn't trying to save ''her'', but a woman who's already dead. Michael responds that Georgiou keeps pushing her away because of what happened with Mirror-Michael. Defied in Part 2, when Michael says "What I feel for you belongs to you. No-one else." before [[spoiler: Georgiou steps through the Guardian of Forever.]]

** [[spoiler:Jack's]] mother dies giving birth to him, so he's always felt something was missing, having been able to communicate telepathically with his mother in utero but never getting to meet her face to face. While working a case, he and the brothers encounter a shapeshifter who works as a bereavement counselor. She is able to use the brothers' memories of Kelly to take her form and give [[spoiler:Jack]] a chance to "speak" to the mother he was never able to meet. [[spoiler:Jack]] is thrilled to finally be able to hug her and thank her for protecting him.
* ''Series/{{The Umbrella Academy|2019}}'':

-->'''Leone'':' Picture this: the camera shows a gunman from the waist down pulling his gun and shooting a running child. The camera tilts up to the gunman's face and... it's Henry Fonda.

** When Erice Utsumi from ''LightNovel/FateRequiem'' shows up, she has a lot of trouble understanding that the Voyager in Chaldea is different from her Voyager, and keeps treating him as her beloved Servant. Likewise, she gets disturbed when Kijyo Koyo doesn't recognize her and has no idea who Karin is.

-->'''Garaku'':' My love is blind when it comes to Mei Hirasaka.

*** After the [=TARDIS=] lands in a parallel universe in "[[Recap/DoctorWhoS28E5RiseOfTheCybermen Rise of the Cybermen]]"/"[[Recap/DoctorWhoS28E6TheAgeOfSteel The Age of Steel]]", Rose desires to see her father Pete's counterpart -- who in the prime universe died when she was an infant, whereas his counterpart is still alive but never had any children. The Doctor pressingly insists, "That is not '''your''' Pete, that is '''a''' Pete" and tries to dissuade Rose (to little effect). Rose has to be dissuaded from going back to save "her mum" from death by the Doctor reminding her the doppelganger isn't her mother, and later she's horrified by [[spoiler:her mother's counterpart's [[UnwillingRoboticisation conversion into a Cyberman]]]] and afterwards needs to visit her real mother to get over it. Both the alternate versions of Rose's parents seem to [[InTheBlood subconsciously]] ''know'' of their relation when they interact with her, without having any conscious knowledge of who she is. Ultimately, Rose comes clean to the alternate Pete, but in contrast to his prime counterpart, he [[ThatThingIsNotMyChild rejects her]]. To be fair, he was childless and had just lost his Jackie in a horrific way), leaving her shaken.