History Main / DoppelgangerGetsSameSentiment

* In ''LightNovel/SwordArtOnline: Hollow Fragment'', the video game adaptation of the series, Kirito encounters a [[ArtificialIntelligence Hollow Data]] version of Sachi, his [[TheLostLenore deceased first love]] who [[MyGreatestFailure he failed to save]]. Although suspecting she's not real, Kirito is hellbent on protecting her at all costs so she won't die again. Eventually Sachi does reveal she is indeed not the real Sachi. She also remembers the words the real Sachi never got to say to Kirito, which leaves him distraught and shaken, but also giving him closure.
* In ''LightNovel/SwordArtOnline: Accel World VS Sword Art Online'', due to the [[TimeyWimeyBall time travel shenanigans]] of the game and the fact the game continuity is an AlternateTimeline to the canon continuity, Kirito ends up meeting a version of Eugeo from another timeline (who is implied to be the canon version). Upon seeing Kirito, Eugeo mistakes him for ''his'' Kirito and tries to get him to remember, only to be disappointed that this Kirito has no memories of their time together (as at this point [[HaveWeMetYet Kirito hadn't met Eugeo yet]] since the ''Alicization'' Arc hadn't happened). However after having a friendly duel with Kirito to test him, Eugeo realizes that while this is a different Kirito, it is still Kirito who fights the exact same way. He then takes up on Kirito's offer to hang out and party with him until he's able to return to his own timeline.

Compare HaveWeMetYet when you ''are'' meeting the ''same'' person, but ''they'' haven't met you from their perspective, so as far as they are concerned you're still a stranger.

** In ''Series/LegendsOfTomorrow'', the Earth-X version of Leonard Snart aka Captain Cold is an unrelenting do-gooder hero which is stomach turning for his Earth-1 partner in crime Mick. Mick keeps trying to regale Earth-X Leonard with tales of their criminal adventures and Leonard finally has to forcefully remind Mick that he's not Earth-1 Leonard and he's not interested in being a criminal.

* ''ComicBook/XMen'': ComicBook/{{X23}} was abused by her creator because of his grudge against Wolverine. X-23 is an OppositeSexClone of Wolverine and so made a good scapegoat for his frustrations with the other mutant.

* ''Manga/DetectiveConan'' has an extremely unusual example. In an attempt to frame [[GreatDetective Shinichi Kudo]], a criminal underwent plastic surgery to take on Shinichi's likeness and then put himself into a murder situation to get Shinichi convicted. However what gives away the culprit's identity; in his home a smashed mirror was found. The reason for it? He had taken on the face of a man he hated and seeing that same face in the mirror led him to smash it in anger. This guy treated the doppelganger the same way he would to the real person when said doppelganger was ''himself''.

* In ''[[Anime/YuGiOh Yu-Gi-Oh! ]]'', the "Dawn of the Duel" arc has Yami Yugi/The Pharaoh gets whisked into a world resembling his past life of Ancient Egypt. There he sees that his royal subjects are all past reincarnations of many people he knows in the present, and initially had trouble getting them any differently. For instance, his chief advisor is Shimon and the doppelganger of Yugi's grandfather, who the Pharaoh still sees as a father figure, while Priest Seto still ended up becoming a [[WorthyOpponent worthy]] [[TheRival rival]] to him of sorts.

** When Jake Sisko meets the MirrorUniverse counterpart of his deceased mother, he treats her just the same way.

** ''Series/StarTrekDeepSpaceNine'': {{Enforced}} in "[[Recap/StarTrekDeepSpaceNineS04E06Rejoined Rejoined]]" as an allegory to closeted homosexuality. The episode has Jadzia Dax work with Lenara Kahn, another joined Trill. The Dax and Kahn symbionts were married in previous lifetimes, and the two women find that they're still strongly attracted to one another despite "reassociation" being a taboo in Trill culture. [[spoiler:They ultimately do not stay together due to societal pressure.]]

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** In "The Zygon Invasion", the shape-shifting Zygons specifically use this against the humans. When a squad of soldiers surround a church full of Zygons, one Zygon comes out taking the form of one of the soldier's mother, constantly pleaing to him in a heartfelt way. The soldier cannot bring himself to kill what looks like his mother, and when other Zygons emerge as the loved ones of the other soldiers, they all agree to head into the church, what the Zygons promptly slaughter them. Furthermore, the Zygon commander, Bonnie, was impersonating Clara, which is implied to be one of the reasons why the Doctor was being very forgiving to her and wanted to help her pull a HeelFaceTurn.

*** 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.

** ''Series/StarTrekTheOriginalSeries'': 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.

* ''Series/CrisisOnEarthX'':
** The Earth-X Version of Prometheus is the doppelganger of Oliver's dead best friend, Tommy, who died while the two were still having a fallout over Oliver being a secret vigilante. Oliver deeply wants to believe in the capacity for someone with his friend's face to change, but Prometheus, who was raised an unrepentant Nazi, uses Oliver's nostalgia and love for his friend to mock and manipulate him before deploying a cyanide capsule that forces Oliver to helplessly watch his best friend die a second time.
** When the Earth-1 heroes get captured and sent to Earth-X for execution, Earth-X Quentin Lance expresses difficulty killing Oliver, the man with the face of the fuhrer. So he opts to have a bag put over Oliver's head to make the act easier for him.
* In ''Series/DoctorWho'',
** This is explored in the two-parter "The Rebel Flesh" and "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 experiments this using his 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 Zygon Invasion", the shape-shifting Zygons specifically use this against the humans. When a squad of soldiers surround a church full of Zygons, one Zygon comes out taking the form of one of the soldier's mother, constantly pleaing to him in a heartfelt way. The soldier cannot bring himself to kill what looks like his mother, and when other Zygons emerge as the loved ones of the other soldiers, they all agree to head into the church, what the Zygons promptly slaughter them. Furthermore, the Zygon commander, Bonnie, was impersonating Clara, which is implied to be one of the reasons why the Doctor was being very forgiving to her and wanted to help her pull a HeelFaceTurn.

* ''Series/{{Arrow}}'':
** Still grieving over the death of Laurel Lance, Oliver is greatly affected by the appearance of her EvilDoppelganger Black Siren. Despite his continual denial, it's apparent he sees her as the original Laurel and a second chance to save her.
** Detective Lance, Laurel's father, has a much stronger emotional reaction. In fact, he has an arc where he kidnaps her to try to convince her that she can be his daughter if they both believe hard enough.

* ''Series/TheFlash'':
** This is how Team Flash reacted when Harry Wells from Earth-2 first made his presence known. Being the AlternateSelf version of the man who the [[BigBad Eobard Thawne]] was [[DeadPersonImpersonation impersonating]] made it very difficult for Team Flash to trust him, despite Harry's constant reminders that he was not Thawne.
** Earth-3 Jay Garrick is the doppelganger of Barry Allen's father, Henry. Barry Allen is visibly emotionally overcome trying to deal with someone who looks just like his recently murdered father. Jay feels bad for Barry, but reminds him that he is not Henry and wouldn't make a very good ReplacementGoldfish.
** This also occurs with HR Wells from Earth-19, the third Wells to be a member of Team Flash. Despite the fact that he was incompetent and unintelligent compared to his predecessors, Team Flash still accepts him as a team member. As Cisco explains, the other Wells were geniuses who they depended on, while with HR it was the inverse. So after everything that Harrison Wells had done for them, Cisco wanted "to be there for Harrison Wells".
** In the Season 2 finale, [[BigBad Zoom]] was DraggedOffToHell where he was subjected to a FateWorseThanDeath, becoming Black Flash, a zombie-like speedster with [[LossOfIdentity no traces of the mind of his former self]]. However when Barry and Killer Frost encounter Black Flash they still call him by his old name, and in Barry's case is evidently still terrified of his former nemesis.
* In ''Series/LegendsOfTomorrow'', the Earth-X version of Leonard Snart aka Captain Cold is an unrelenting do-gooder hero which is stomach turning for his Earth-1 partner in crime Mick. Mick keeps trying to regale Earth-X Leonard with tales of their criminal adventures and Leonard finally has to forcefully remind Mick that he's not Earth-1 Leonard and he's not interested in being a criminal.
* ''Series/TheOuterLimits1995'', "Second Soul": A man's wife becomes a donor for an alien race that needs to possess dead humans to live. The alien is not happy about his persistent interest in her.

** In "The Zygon Invasion", the shape-shifting Zygons specifically use this against the humans. When a squad of soldiers surround a church full of Zygons, one Zygon comes out taking the form of one of the soldier's mother, constantly pleaing to him in a heartfelt way. The soldier cannot bring himself to kill what looks like his mother, and when other Zygons emerge as the loved ones of the other soldiers, they all agree to head into the church, what the Zygons promptly slaughter them.

* In ''[[Anime/YuGiOh Yu-Gi-Oh! ]]'', the "Dawn of the Duel" arc has the Yami Yugi/The Pharaoh gets whisked into a world resembling his past life of Ancient Egypt. There he sees that his royal subjects are all past reincarnations of many people he knows in the present, and initially had trouble getting them any differently. For instance, his chief advisor is Shimon and the doppelganger of Yugi's grandfather, who the Pharaoh still sees as a father figure, while Priest Seto still ended up becoming a [[WorthyOpponent worthy]] [[TheRival rival]] to him of sorts.
* In ''Anime/DragonBallSuper'', [[TheRival Vegeta]] seems to treat fighting [[EvilTwin Goku Black]] as another chance to beat on [[TheRival Kakarot]], always eagerly snatching the chance to pound his rival's doppelganger.

* In ''Series/DoctorWho'', this is explored in the two-parter "The Rebel Flesh" and "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 experiments this using his 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 ''Anime/DragonBallSuper'', [[TheRival Vegeta]] seems to treat fighting Goku Black as another chance to beat Kakarot, always eagerly snatching the chance to pound his rival's doppelganger.

* ''VideoGame/TheWitcher3'' features the doppelganger Du-Du who can take on the form of anyone he pleases. In a time where anything not 100% mundane can lead to being burned at the stake, Du-Du tends to mimic people who are either very esteemed or very feared. This nearly gets him killed when he chooses to shapeshift Whoreson jr, one of the city's underbosses. Ciri, a ridiculously overpowered half-elf, and her father-figure, protagonist and renowned witcher, Geralt, nearly murder him as Whoreson, Jr. tried to kill Ciri the last time the two crossed paths. Du-Du is forced to reveal his true form to avoid being murdered by his own friends.

* In ''Series/DoctorWho'' this is explored in the two-parter "The Rebel Flesh" and "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 experiments this using his 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.

** This is how Team Flash reacted when Harry Wells from Earth-2 first made his presence known. Being the AlternateSelf version of the man who the [[BigBad Reverse-Flash]] was [[DeadPersonImpersonation impersonating]] made it very difficult for Team Flash to trust him, despite Harry's constant reminders that he was not Thawne.

* ''VideoGame/TheWitcher3'' features the doppelganger Du-Du who can take on the form of anyone he pleases. In a time where anything not 100% mundane can lead to being burned at the stake, Du-Du tends to mimic people who are either very esteemed or very feared. This nearly gets him killed when he chooses to shapeshift Whoreson jr, one of the city's underbosses. Ciri, a ridiculously overpowered half-elf, and her father-figure, protagonist and Witcher Geralt, nearly murder him as he tried to kill Ciri the last time the two crossed paths. Du-Du is forced to reveal his true form to avoid being murdered by his own friends.

* ''VideoGame/TheWitcher3'' features the doppelganger Doo-doo who can't take on the form of anyone he pleases. In a time where anything not 100% mundane can lead to being burned at the stake, Doo-doo tends to mimic people who are either very esteemed or very feared. This nearly gets him killed when he chooses to shapeshift Whoreson jr, one of the city's underbosses. Ciri, a ridiculously overpowered half-elf, and her father-figure, protagonist and Witcher Geralt, nearly murder him as he tried to kill Ciri the last time the two crossed paths. Doo-doo is forced to reveal his true form to avoid being murdered by his friends.

** This is how Team Flash reacted when Harry Wells from Earth-2 first made his presence known. Being the AlternateSelf version of the man who the [[BigBad Reverse-Flash]] was [[DeadGuyImpersonation impersonating]] made it very difficult for Team Flash to trust him, despite Harry's constant reminders that he was not Thawne.

** **[[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.

Was BorrowedEmotionalReaction.