[[quoteright:260:[[VideoGame/NieR http://static.tvtropes.org/pmwiki/pub/images/tumblr_lxyyo5EcLh1qzykafo1_500_6765.jpg]]]]
[[caption-width-right:260: Oh no, not... Which one are you?]]

->''"I can't hear it... I can't hear my other heartbeat anymore!"''
-->-- '''Jr./Rubedo''', ''VideoGame/{{Xenosaga}} II''.

A [[TwinTropes pair of twins]] are introduced. They are portrayed as being [[SingleMindedTwins sufficiently alike]] that even people who have known them for a long time have trouble telling them apart. Often they serve as comic relief, enjoying [[TwinSwitch the confusion they might cause]] just as much as the audience. It is highly likely that one twin, and only one, will be killed off. Why?

# Since the twins are alike, [[StatusQuoIsGod less is lost to the story]] [[UniquenessValue than if a different character is lost]].
# If the character is being played by the same actor, it's a great opportunity to do a death scene and yet continue essentially the same role with character development, without [[{{Flanderization}} Flanderizing]] a 'serious drama' into DeathIsCheap territory.
# It provides an opportunity to create angst, sorrow, anger, etc. into the character of the surviving twin. The surviving twin [[TookALevelInBadass may even go]] from a character who never takes ''anything'' seriously to a genuine ActionHero.

In BackupTwin, a character is introduced and later killed off. Only after their death is it revealed they had a BackupTwin, who carries on in the deceased character's place as if nothing had happened. The original twin is often never mentioned again once the new twin explains that he is a twin (or clone, if science fiction) and not the original character brought back to life.

In this trope, either the twins are introduced at the same time or close to it, or else the surviving twin is introduced first, and the dead twin is then introduced in a flashback. The death of the twin must have a profound or at least significant effect on the survivor for it to be this trope. The victim doesn't always have to be an identical twin, provided they play that role.

If the death of the twin occured after the birth of both children or at early age, because of religion, superstition or popular beliefs, then it's OneTwinMustDie.

'''This being a DeathTrope, there be spoilers.'''



[[folder:Anime & Manga]]
* Averted at the end of the ''Manga/{{Trigun}} Maximum'' manga in that [[spoiler:we don't know if Knives is actually dead and never get to know how Vash feels about it, but from his creepy look when Knives is mentioned it's safe to assume part of him is relieved (if) he's dead]]. Can't blame him either. [[spoiler:Knives, on the other hand, would probably have gone even crazier and angstier if Vash had died.]]
* Sometimes this happens in ''VisualNovel/HigurashiWhenTheyCry'', what with {{Alternate Universe}}s. Sometimes it gets completely averted (failing to even mention the twin) and some of the unluckier times, [[CainAndAbel well... ]]
* ''Manga/VampireKnight'' turns this into a legend requiring one of the twins of hunters to "eat" the other. Usually, vampire hunter twins compete for nourishment in the womb and one is absorbed by the other, but in the rare occurrence that both are born, one will be fated to take the other's life and somehow absorb his energy. That's difficult to imagine until you take into consideration that Zero becomes a vampire in the story...and Ichiru does not.
* In ''Manga/{{Mars}}'', Rei is introduced as a lively {{Delinquent}} BadassBiker wasting his youth chasing girls and racing bikes. After he has a panic attack in response to a person committing suicide in a public place, the series spends the much of its plot revealing that his identical twin Sei [[spoiler:jumped to his death from the roof of a school, leaving Rei staring at a body that looked exactly like himself]].
* Suboshi in ''Manga/FushigiYuugi'', who is sufficiently broken by his twin's (perceived) death that he crosses the MoralEventHorizon in a big way to retaliate against the Suzaku warriors.
** And in a fairly horrible bit of irony, Amiboshi [[spoiler:not only wasn't really dead, he was the only one of the Seiryuu seven who survived to the end of the series.]]
* Mrs Skeener, of ''Manga/TheDreaming'' was the only student at Merriweathers Finishing School for Young Ladies (Greenwich's old name) that wasn't kidnapped by Quinkans. Her twin sister Mary, on the other hand...
* [[spoiler:Tatsuya Uesugi]] in ''Manga/{{Touch}}''
* Rai's death in ''Manga/JyuOhSei'' drives the plot because of the angst it causes his twin Thor.
* Though not an actual twin, Shiki Ryogi in ''LightNovel/KaraNoKyoukai'' goes through something like this after she loses "the other Shiki" after a car accident. "The other Shiki" is in fact a male SplitPersonality, and in his memory she begins using his masculine manner of speech.
* In ''VisualNovel/ChaosHead'', [[spoiler: [[{{Meganekko}} Yua Kusunoki]]'s twin sister [[ThemeTwinNaming Mia]] died in the "Group Dive," the ''first'' First Gen incident. Yua then launches her own investigation into [[ThemeTwinNaming Mia's]] death. She suspects Takumi Nishijou is involved in the First Gen murders, and attempts to gain his trust by acting as a girl otaku. When Takumi finds out her true intentions, Yua ... [[NotHerself doesn't]] [[ScaryShinyGlasses take]] [[DepartmentOfRedundancyDepartment it well]]. Turns out that it was actually Yua who died and not Mia. Mia essentially _became_ Yua after her twin's death.]]
* In ''Manga/{{Arago}}'', Ewan dies within the first few chapters. Arago ends up replacing him as a detective.In the middle of the story, it is revealed that [[spoiler: Ewan is revived by [[BigBad Patchman]] to contain the Brionac Patchman divided into two, and as Patchman's spare SoulJar. Ewan is finally KilledOffForReal in the last chapter when Ewan's consience finally resurface and he commits suicide by jumping off a high building, [[TakingYouWithMe taking Patchman's soul with him.]] ]]
* ''Inochi'' by Reiko Momochi invokes this trope as an important base for its plot, as early as within the first two chapters. It is given that the twins, Nobara and Kotori, are identical to the point where not even their mother can tell apart their TwinSwitch moments; [[spoiler: unfortunately for Nobara, their last switch ends up getting Kotori kidnapped, killed, and [[ILoveTheDead posthumously raped]]. As a result, Nobara, due to circumstances, must continue to pretend to act as Kotori without getting found out. Cue {{angst}}.]]
* Hiashi for his brother Hizashi in ''Manga/{{Naruto}}''. After Hiashi killed the Cloud Village emissary when he tried to kidnap Hinata, he offered himself as the murderer, but the clan elders and Hizashi decided to have Hizashi stand in for him, so that his Cursed Seal would protect the Byakugan. Seeing Hizashi's son Neji's skill and resentment toward the head family deeply affects Hiashi, and leads him to tell Neji the truth about his father's death.
** Possibly Kinkaku and Ginkaku. After his brother is defeated in battle, he is unhappy to say the least, as he rampages through the 1st division of the Shinobi Alliance. According to Kakuzu, this is the second time this has happened. So Kinkaku does not do well when his brother is taken from him.
** Sagi, the daimyo of the Land of Birds, assumed the persona of a ghostly warrior so he could hunt down the person who poisoned his twin sister. Ultimately it's revealed that [[spoiler:the BigBad had actually poisoned Sagi, and his sister Toki assumed her brother's identity to avoid succession issues]].
* Works by Creator/{{CLAMP}}:
** [[spoiler:Fay D Flourite]] from ''Manga/TsubasaReservoirChronicle''. All of [[spoiler: his]] motivations stem from the death of [[spoiler: his]] twin, [[spoiler: by that name, which he adopts in his brother's memory. His real name is Yuui]].
** Subaru Sumeragi in ''Manga/{{X1999}}'' after the death of his twin sister Hokuto.
* In the ''Manga/MagicKnightRayearth'' TV series, there's [[spoiler: Presea's twin younger sister Sierra.]]
* Double-subverted in ''Anime/AngelBeats'' with [[spoiler: Ayato Naoi]]. His twin brother, a pottery prodigy, died; his father forced the surviving twin to become a ReplacementGoldfish. But he got over it eventually, and was starting to like his new life...until his father got a terminal illness, and they had to shut down said pottery business. This gave him enough angst to quality for the "ruined childhood afterlife" and [[spoiler:turned him into a psychotic hypnotist who thinks he's God]].
* Played with in ''{{VisualNovel/Clannad}}''. Kyou and Ryou are non-obviously identical twins, differentiated by OnlySixFaces and their vastly different hairstyles. There's a literal BusCrash, and everyone thinks Ryou might have died, but it turns out she didn't take the bus that day at all. Kyou only panics momentarily. It's Kotomi--purple-haired girl #3--who experiences a FreakOut; she takes one look at the flipped bus and jumps to the conclusion that Ryou is dead and it's her fault, probably because [[spoiler:she still wrongly blames herself for causing her parents' deaths and destroying their life's work]].
* Happens very briefly in ''LightNovel/FullMetalPanic The Second Raid'', when Xia Yu Lan is killed and her corpse is used to goad her younger twin sister Xia Yu Fan into rage to attack their employer (who quickly offs her, too).
* In ''Manga/KingOfThorn'', twins Kasumi and Shizuku both contract the deadly disease [[TakenForGranite Medusa]], but only Kasumi is selected to into cryogenic sleep to wait for a cure, which upsets her greatly. [[spoiler:Matters are complicated however when it's revealed that Kasumi is a Medusa duplicate created by Shizuku in a bout of incredible grief, when the 'real' Kasumi accidentally died by falling off a cliff after trying to get Shizuku to perform a double-suicide with her around the start of the story.]]
* ''Anime/{{K}}'' has Adolf K. Weismann and his elder twin sister Klaudia, who is a PosthumousCharacter - her death is shown in a flashback. Her brother, now immortal, retreats to his airship and [[AllPowerfulBystander removes himself completely]] from the world for decades, until [[spoiler: he gets body swapped with an OrdinaryHighSchoolStudent and hit with [[AmnesiacGod amnesia]].]] He even says that even though he witnessed [[spoiler: the Colourless King murder someone,]] he's not interested enough to interfere.
* In ''LightNovel/MagicalGirlRaisingProject'', the Peaky Angel twins Minael and Yunael initially serve more as comic relief as they focus on being popular over helping people and complain about their leader. They do everything together and act the same. [[spoiler:When the fighting starts, Yunael is killed, leaving Minael mentally unhinged. She then employs ruthless pragmatism over fun when hunting her enemies until she's killed.]]
* In ''Anime/KurageNoShokudo'', Youtarou finds it difficult to accept his brother's death. In fact, he [[spoiler:attempted to kill himself, presumably to join his twin in death.]]
* This trope plays a role in [[spoiler: the single most foreshadowed and biggest spoiler]] in ''Manga/BlackButler'', [[IKnewIt unless you're one of the fans who guessed]] beforehand. [[spoiler: As in, "Ciel Phantomhive" as we know him is actually the [[WeakerTwinSavesTheDay younger, less-known, fragile]] Phantomhive twin, impersonating his brother Ciel for the past three-four years. As of yet, the audience doesn't even know the protagonist's real name.]]
* One story in ''Anime/{{Mushishi}}'' centers on a woman whose twin sister was stolen away by a ''mushi'' when they were children. She still tries to contact her sister despite everyone including Ginko telling her it's a lost cause.

[[folder:Comic Books]]
* Kate Kane, the post-Crisis ''ComicBook/{{Batwoman}}'', lost her twin sister Beth and her mother in a terrorist attack when she was 12 years old. [[spoiler:Or so she thought, since her first major villain, Alice, turned out be Beth, who was heavily implied to have undergone some serious MindRape.]]
* Pre-reboot ComicBook/LadyShiva. She and her twin sister Carolyn were excellent martial artists, which drew the attention of David Cain. Cain was looking for the perfect mother to bear a child whom he could mold into the ultimate assassin. He noticed that Shiva and her sister would always hold back against each other to avoid really hurting each other whenever they sparred. David then murdered Carolyn so nothing would hold back Shiva anymore. Years later, Lady Shiva would admit to [[ComicBook/Batgirl2000 her daughter Cassandra]] that she misses Carolyn every day.

[[folder: Fan Works]]
* [[PrinceCharming Prince James]] is one of these in the ''Series/OnceUponATime'' fanfiction ''FanFic/OnceUponATimeAndAgain'', as his elder twin brother David died before the beginning of the story. In canon, they had never met before James was called in as a BackupTwin and SpareToTheThrone.
* This is brought up by Tsunade in ''Fanfic/DreamingOfSunshine'' after [[spoiler:the Retrieval Arc - Ukon dies after trying to possess Naruto, leaving his twin brother Sakon to be brought back to the village for interrogation.]]
** Also, [[spoiler:Toki]] in the Land of Birds Arc.
** The fear of this trope is what drives some of the interpersonal conflict between Shikamaru and Shikako - with Shikako near constantly in danger, Shikamaru fears losing her.
* The ''VideoGame/TalesOfTheAbyss'' fanfic ''Fanfic/{{Reflections}}'' has this brought up or alluded to in regards to Asch and Luke [[spoiler: though they aren't twins but original and replica, functionally they have acted as such since Luke joined the family]] and the BigBad wants to invoke this to get Asch under his control.

* In the ''Franchise/StarWars'' franchise:
** ''WesternAnimation/StarWarsCloneWars'', since every clone with character development is potentially one of these.
** In ''Star Wars: Episode II -- Attack of the Clones'', Queen Amidala's lookalike handmaiden Corde.
* In ''Film/{{Constantine}}'' twin sisters Angela and Isabelle had the powers to see angels and demons. Angela denied her gift while Isabelle accepted it - Angela became a successful police officer while Isabelle ended up in an asylum, eventually killing herself and thus kicking off the plot.
* Hedy in ''Film/SingleWhiteFemale'' is revealed to be this, both from the story she tells Allie--that her twin was stillborn--and from waht we learn really happened--she drowned when they were seven and the guilt-ridden and lonely Hedy has been searching for a replacement ever since, hence her mimicking Allie's style and appearance.
* Opposite-sex example in ''Film/AvengersAgeOfUltron'' with [[spoiler: Wanda, who tells Ultron she felt like she too had "died" following Pietro's death.]]
* ''Film/DeadRingers'': At the end, Beverly kills his brother with surgical tools at the latter's request in a drug-fueled stupor. He doesn't outlive his brother for long, as he simply can't bear to live without him and instead chooses [[TogetherInDeath to die with Elliot]].
* At the beginning of ''Film/ThePrettyOne'', the audience is introduced to Laurel and Audrey, identical twins who are otherwise polar opposites. When Audrey dies in a car accident, Laurel tries to pick up Audrey's life, but is hampered by the fact that she's still grieving Audrey, in her mind the more successful of the two, and can't express it to anyone except the support group.
* The plot of ''[[Literature/IMissYouIMissYou I Miss You]]'' centers on this trope, as the movie follows 14 year old Tina whose identical twin Cilla is killed in a car accident.

* ''Literature/TheSilmarillion'': In one version of the "burn the ships" incident, Amras, one of Fëanor's twins, is [[AccidentalMurder on the ships when his father burns them]]. His twin Amrod becomes this afterward. [[note]]This version doesn't appear in the published Silm, apparently because Tolkien changed his mind about it. Doesn't stop many fans accepting it as canon, though.[[/note]]
* In ''Literature/AmongOthers'' by Creator/JoWalton, Mori's twin dies shortly after the start of the book and she spends most of the book coping with her death. [[spoiler:Then she sees her twin's ghost who tries to get her to commit suicide so they can be together.]]
* In Creator/{{David Eddings}}'s ''[[Literature/TheBelgariad Belgariad]]'', the sorceress Polgara is this.
-->'''Belgarath''': "To this very day, if you're impolite enough to ask Polgara how old she is, she'll probably say something like, 'We're about three thousand--or so.' Beldaran's been gone for a long time, but she still looms very large in Polgara's conception of the world."
** In fact, just the mention of her name, such as [[spoiler: Garion naming his first daughter after her]] is enough to shake her.
** Either one of the surviving twins in his other novel, ''Regina's Song'' gets this. [[spoiler: [[CuteButPsycho Very]], [[SerialKiller very]] [[TheOphelia badly]].]]
* ''Literature/ThePowerOfFive'': Scott dies and Jamie lives.
* Wulfgar from ''{{Literature/Valhalla}}'' loses his brother to the protagonist in the first scene, setting up his quest for revenge.
* In [[Creator/IainBanks Iain M. Banks]]'s [[Literature/TheCulture Culture]] novel ''Look to Windward'', this is the {{backstory}} for [[spoiler:the AI Mind of the Masaq [[{{Ringworld}} Orbital]], formerly the GSV ''Lasting Damage'', which had been reunited with its BackupTwin and then lost it during the Idirian War. Culture Minds are titanic. Big mind, big angst.]]
* In the SF novel ''La Horde du Contrevent'' by Alain Damasio, one of the Dubka brothers dies and the other angsts about it until [[spoiler: he is replicated and the copy instantly assumes the identity of the dead brother, for reasons explained in the book.]]
* ''[[http://en.wikipedia.org/wiki/Lightning_%28novel%29 Lightning]]'' by Creator/DeanKoontz. The heroine meets a pair of identical twin orphans, Thelma and Ruth. Later on Ruth is killed accidentally when another orphan commits suicide, causing Thelma tremendous grief. She ends up helping the heroine in her adventures.
* "Nine Lives", a short story by Creator/UrsulaKLeGuin, takes this to an extreme when one of ten clones is the only survivor.
* This provides perhaps the most heart-wrenching scene in Frank [=McCourt=]'s memoir ''Literature/AngelasAshes'', when one of the young twins dies and the other one keeps pathetically saying his name, etc.
* Subverted in Creator/TimPowers' ''Literature/TheStressOfHerRegard''. Crawford's wife Julia -- who was murdered very early on in the book -- was survived by her twin sister Josephine. When Josephine was first introduced to Crawford before the wedding, it is clear that there is some physical similarity between the twins, but they are not confused with each other. In fact, Julia makes a point of mentioning that as a child, Josephine (TheUnfavorite) often pretended to be Julia, and that Julia eventually confronted and humiliated Josephine publicly to make her stop. After Julia's murder, Crawford is MistakenForMurderer and Josephine tracks him down.
* Both played straight and subverted in ''Literature/HarryPotter''. [[spoiler:George, the surviving Weasley twin, goes on without Fred to become super successful at Weasley's Wizard Wheezes, which was the dream the twins had pursued together]]. On the other hand [[spoiler:he married Fred's ex girlfriend Angelina, he named his own son Fred, and WordOfGod says that he never fully got over Fred's death]].
** The look on [[spoiler: George's face in the movie when he saw Fred's dead body shows just how deeply it affected him]].
** Meta-Example (sort of); the actor playing [[spoiler: George]] couldn't do more than a few takes of [[spoiler: pretending his brother was dead]] as it was too much for him.
* In ''Blade of Fire'' (the second volume of Stuart Hill's ''Literature/TheIcemarkChronicles'') Thirrin's son, Cerdic, is killed in battle, prompting his twin brother, Eodred, to enter a period of protracted mourning. In the end, it takes the insistance of his sister, Cressida, that he get on with life and his new-found friendship with a young werewolf to help Eodred recover.
* Jonah in Natalie Standiford's book ''How to Say Goodbye in Robot'': [[spoiler:Jonah's father actually lied to him about his twin's death in a car accident. He actually had him institutionalized because he didn't want to look after him.]]
* [[Franchise/StarWarsExpandedUniverse Alema Rar]] loses her twin sister to the Yuuzhan Vong in a particularly agonising and gruesome way; it sends her into a dangerous spiral of grief and vengeance [[spoiler:that culminates in her falling to the Dark Side, becoming steadily more insane and disfigured by injuries, and eventually dying.]]
* [[spoiler: Digby Geste]] from ''Literature/BeauGeste'' plays a bit with this; though he survives his twin [[spoiler: Michael and even helps in making a funeral pyre for him]], he feels a lack due to his twin's more dominant personality [[spoiler: and he dies on the way back to Lagos]].
* ''Literature/GalaxArena'': [[spoiler:Mariam, after Istar dies in the arena.]]
* This is the premise of ''Theatre/TwelfthNight,'' where Viola is devastated by the loss of her brother. However, as it turns out, Sebastian isn't dead -- and he's as heartbroken as Viola is.
* Charlie in the novel of ''Literature/LemonadeMouth'' ([[{{Disneyfication}} but not the movie]]) -- his twin choked on his umbilical cord and was stillborn. The family's visited his grave on every birthday.
* The Literature/{{Redwall}} story ''Marlfox'' has a pair of otter twins that are part of the Sensational Wandering Noonvale Companions Troupe. One of the brothers, Elachim, dies in the first battle of the story, while his brother survives to the end.
* Gilead Lothain, the dispossessed elf protagonist of the Black Library novel Gilead's Blood (and the forthcoming Gilead's Curse), owes his grim, tragic and thoroughly disillusioned character to the death of his identical twin brother Galeth. Gilead and Galeth were often described as one soul in two bodies, such was the strength of their bond (extending to a kind of mild telepathic link), and Gilead speculates that their bond somehow survives Galeth's death, making him effectively two souls in one body. It is because of what happened to Galeth that Gilead lost all interest in his lands and noble birthright and became the shadowy wandering vigilante he is in the books.
* Thomas Didymus, after the crucifixion of Christ in ''Literature/DirgeForPresterJohn''.
* Isadora and Duncan Quagmire are Surviving ''Triplets'' in ''Literature/ASeriesOfUnfortunateEvents''. They insist on being referred to as triplets, not twins, because they were not born twins. [[spoiler: Later subverted when it turns out that Quigley survived.]]
* Type 3 is turned up to eleven in ''The Stranger House'' when one of the interchangeable Gowder twins dies in an accident and the survivor goes 100% AxeCrazy.
* The Literature/SweetValleyHigh book ''The Wakefields of Sweet Valley'' includes the story of Jessamyn, the great-great grandmother of the twins featured in the main series, who never really got over the death of her own twin Elisabeth in a riding accident. To a lesser extent, Amanda (the Wakefield's great-great-aunt whose twin Samantha dies in childbirth) and Sarah (the great-great-grandmother on the other side of the family whose twin brother James dies of pneumonia) might also qualify.
** Elizabeth herself, during a nightmare that she has in which Jessica is killed in a car accident following an argument in which Elizabeth has finally gotten fed up with Jessica's selfish behavior and outright told her "I wish I didn't HAVE a sister".
* ''[[Literature/TheCatWho The Cat Who Sniffed Glue]]'' features David Fitch who has to deal with not only the murder of his twin brother Harvey, but also their mother's fatal stroke and their father's suicide, both indirectly caused by the murder. His friends are all worried he may follow his father's example. [[spoiler: Subverted when we find out that David was DeadAllAlong and the surviving twin is actually Harvey, who killed David in order to take his place.]]
* In ''Literature/TheSecretLifeOfBees'', one of the Boatwright sisters, May, had a twin sister named April who died. According to sisters June and August, May was never the same after that, and will become upset and emotional over the littlest things.
* Carrie after Cory is killed by poison in ''Literature/FlowersInTheAttic''.
* This is the subject of "After Iris", by Natasha Farrant -- a video diary by a preteen girl set three years after her twin sister was killed in a traffic accident.
* The book ''Literature/IMissYouIMissYou'' opens with the character Tina telling the audience that her identical twin Cilla will soon die in a car accident and that this is not meant to be a surprising twist because the story is about Tina dealing with the loss of her sister.
** While the characters in the book are fictional they are based on real life twins Kinna and Jenny Gieth. Kinna, a teenager at the time, co-wrote the book with author Peter Pohl as a way of coping with the death of her twin.
* In ''Literature/TheBridgeOfSanLuisRey'', Esteban and Manuel are so close that they have [[TwinBanter their own language]] and TwinTelepathy. Esteban goes through a great deal of angst after the death of his twin brother from an infected cut. He essentially becomes a homeless person for a while, wandering around aimlessly, answering to his brother's name. It culminates in an InterruptedSuicide.
* In one of many possible interpetations, Colin Whisterfield in Creator/AlanGarner's ''Literature/{{Boneland}}'', in which an older surviving twin seeks to come to terms with the (presumed) death of his sister, in very strange circumstances, anything up to forty years before the present.
* In the ''Dick Simon'' duology, the [[MultiarmedAndDangerous four-armed]] Taya are almost always born with an identical twin. This has shaped their entire culture. Twins always marry other twins, even if they don't necessarily love their partner. Losing one's brother/sister, especially at an early age, is devastating, and can mean not being able to find a mate due to this. It happens to males more than females, as young males are expected to leave the peace of the villages and go to the lowland jungle to fight. The titular protagonist is a human, who was born on the human colony on Tayahat. When he was still a boy, his father sent him to a native friend to be educated in the ways of the Taya. While there, Dick fell in love with a Taya girl. Unfortunately, the girl had a twin sister, so they could never be together, and Dick was treated with the same kind of pity the Taya reserve for those, whose twin has died, despite the reminders that humans are different.
* ''Literature/WingsOfFire'': Peril is haunted by the fact she killed her twin while [[FetusTerrible still in their egg]]. It fuels her belief that [[EnfantTerrible she was hatched to kill others]], something [[TykeBomb enforced by her queen]]. [[spoiler:It turns out the story is a lie. Her MissingMom was forced to kill her brother not soon after they hatched.]]

[[folder:Live Action TV]]
* The ''Series/StarTrekDeepSpaceNine'' episode "Vortex" featured a pair of twins from a species in which twins are always born with a telepathic link. One twin died. The other twin went mad for revenge.
** The species in question are the Miradorn, who also appear in the novel continuity - one story in the ''Literature/StarfleetCorpsOfEngineers'' series is set on their homeworld. This story features another angsty surviving twin.
* This is Justine's prime motivation in ''Series/{{Angel}}''. Her twin sister Julia was killed by vampires.
* Patsy Parisi from ''Series/TheSopranos''. He angsts about it often enough to make the rest of the cast frustrated, and when he finds out that Tony had his brother killed for trash-talking him, Patsy gets drunk and pees in Tony's pool.
* Surviving twin Stephanie "Steffy" Forrester on''Series/{{The Bold and the Beautiful}}'' grown to become angsty. She dated her dead twin sister Phoebe's incestuous boyfriend Rick (who caused the car accident that killed Phoebe) and now for some reason she is going after Rick's mom, Brooke and her family the Logan's. Possibly because of Phoebe's death, though the show fails to recognize it.
** To add to this trope, Steffy is now going after married man Bill "Dollar Bill" Spencer, who is married to Brooke's sister, Katie.
* Lily experienced this on Series/AsTheWorldTurns after twin sister Rose was fatally poisoned, going so far as to assume Rose's identity in an effort to keep her alive.
* Adam Chandler on ''Series/AllMyChildren'' was this after both times his twin brother and MoralityPet Stuart was presumed dead, promptly engaging in self-destructive behavior that nearly ended ''his'' life as well.
* ''Series/{{Farscape}}'': The death of Talyn!John is very much played this way. The immediate expectation is that Moya!John would shrug it off pretty easily, especially since neither Crichton wanted the other around in the first place. To be fair, though, most of the surviving John's angst was because Aeryn wouldn't let him get close to her due to her angst over Talyn!Crichton's death.
* Cami from ''Series/TheOriginals'' moved to New Orleans prior to the pilot to research on the death of her twin brother Sean, who [[spoiler: massacred everyone on the church he worked for before commiting suicide (later revealed to be because he was hypnotized into doing that by Agnes).]]
* An episode of ''Series/{{Baywatch}}'' featured one of these, a woman who would act as both her her gorgeous, glamorous sister Maddie and her "plain" sister Gwen. (Maddie drowned when the two were little girls and the guilt-ridden Gwen not only assumed her identity in order to cope, she constantly verbally abused herself as punishment)
* Played for laughs in ''Series/CrazyExGirlfriend'', in which Rebecca casually mentions in passing that one of the reasons she's lonely at Thanksgiving is that "My dad bailed, my mom's a misery, I ate my twin in the womb."
-->'''Paula''': [''horrified''] You ''ate'' your ''twin''?
-->'''Rebecca''': [''rolls eyes''] I mean, medically speaking, I didn't "eat" it. I just metabolised its body parts for my own use.
* ''Series/DoctorWho'': After "[[Recap/DoctorWho50thASTheDayOfTheDoctor The Day of the Doctor]]", Osgood and the Zygon, who took her shape, grow closer and almost become TheDividual, refusing to tell anyone which one is which. They see themselves as the embodiment of the human-Zygon peace. So, when Missy murders one of them in "[[Recap/DoctorWhoS34E12DeathInHeaven Death in Heaven]]", the other is shown to be utterly devastated, and still refuses to reveal whether she's a human or a Zygon. This is demonstrated by the surviving Osgood's attitude. While she still fawns over the Doctor, she's now ''much'' more confident in her own abilities and has a hardness to her. She softens a little again, after [[spoiler:Bonnie becomes the second Osgood to maintain the peace]].
* ''Series/{{Riverdale}}'' begins with Cheryl and Jason, two very close {{Half Identical Twin}}s. While out on a boat ride, Jason goes mysteriously missing. Cheryl is [[MistakenForMurderer assumed]] [[SiblingMurder to have killed Jason]]. This is later [[spoiler:debunked]]. [[spoiler:Jason tried to [[FakingTheDead fake his death]] and [[TheRunaway run away]] from Riverdale, but somehow he really was killed.]] At first, it seems like Cheryl is faking her sadness over Jason's death. A few episodes in, the fact that her brother - who she believes was her soulmate - has died ''really'' hits Cheryl. It goes downhill from there, cultivating in [[spoiler:her [[DrivenToSuicide attempting suicide]] in the season finale]].

* In the ''[[Franchise/EvilliousChronicles Evillious]]'' series of Music/{{Vocaloid}} songs, it takes the sacrifice and death of Allen, Riliane's twin brother and the one person who truly loved her, for Riliane to finally realize (and tearfully regret) [[GodSaveUsFromTheQueen her tyranny as a queen and the unforgivable atrocities she had once committed]]. Music/{{mothy}} , being [[TrueArtIsAngsty Mothy]], is aware of the impact of this trope to the fandom and subsequent materials continue to milk the improbability of Allen ever seeing Riliane again for all the feels it's worth.
* The song "Run For Your Life" by Music/TheFray is about a girl whose twin sister has died; the singer tries to convince her not to give up on life afterward.

* In ''Theatre/TheStrangeCaseOfDrJekyllAndMrHyde'', Helen's twin sister died the year before the play's events, leaving her feeling as if half of herself had died. She has a mark on her neck that appeared after her sister's death, which is suggested to be a psychosomatic expression of her grief.

[[folder:Video Games]]
* ''VideoGame/{{Mother 3}}'' has Lucas, who loses his mother and twin brother, Claus, within a day of each other in the game's first chapter. [[TearJerker Almost all of his screentime after that point is of him grieving]]. His SilentProtagonist status after the timeskip leaves much to interpretation, but if nothing else he's melancholic and not particularly talkative.
* In ''VideoGame/GoldenAxe'', the dwarf Gilius Thunderhead was planning to avenge his twin brother by defeating Death Adder, then committing suicide to join him in death. And [[{{Wangst}} whine and be angsty about it]].
* In ''VideoGame/{{Xenosaga}}'', even though Jr. (Rubedo) has spent the better part of two games trying to kill his AxeCrazy twin Albedo, he can't stop himself from breaking down crying after he finally goes through with it.
** He never really seemed to want to kill Albedo. Even before the last fight, he was talking like he planned on stopping him without killing him. Which only makes it worse, since it wasn't even the outcome he was looking for.
* Orlha in ''VideoGame/ChronoCross''.
* Aegina in ''VideoGame/BlazeUnion'', during her route.
* In ''FatalFrame II'' there's a ritual that, by default, produces these, since one twin must kill the other to appease the Hellish Abyss. Let's count the ways they produced Angsty Surviving Twins:
** Itsuki: to the point where he [[spoiler:helps Yae and Sae escape so as to not suffer his and his brother's fate, and then commits suicide once he thinks they've escaped.]]
** [[spoiler: Yae: so traumatized by losing her sister (and the entire village) to the Repentance that she lost all her memories of them.]] A rare example that doesn't directly involve the ritual.
** [[spoiler: Mio: in the canon ending, so traumatized by the death of Mayu]] it leads directly into the 3rd game's plot, which deals with survivor guilt.
** Akane: so traumatized by her twin sister's death that her father made a doll that looked like Azami [[spoiler: which ended up possessed by a malevolent spirit and led to her own possession and death.]]
** The only surviving twin that ''isn't'' angsty is Ryokan, and that's likely because it was years since his twin's death, so he's likely come to terms with it by now.
** From IV: Kageri Sendou. After her twin sister's death, she "coped" with it by creating a life-sized doll in the image of said sister (which she named "Watashi"), treating it as if it were her sister for the rest of her life.
* Mona Sax in ''VideoGame/MaxPayne'', whose identical twin sister Lisa was murdered during the events of the first game. In the seconed game, Max [[PurpleProse waxes]] [[Series/{{Firefly}} all poetical]] about how it must have been for Mona in his [[PrivateEyeMonologue voice-over narration]].
* In the ''Franchise/{{Halo}}'' series, [[GiantMook Hunters]] tend to come as identical twin brothers, as the worm colony that makes up a Hunter will split into two when it grows too large. These twins have an extremely close bond and when you kill one the other will [[TurnsRed go absolutely apeshit on you]].
* As shown in the above picture, in ''VideoGame/NieR'' after [[spoiler:Devola]] is killed midway through the boss battle, [[spoiler:Popola]] goes through a massive VillainousBreakdown where she's driven mad by grief. She rejects Nier's plea to give up, screaming at him that [[MadnessMantra No One Stops]].
** In ''Videogame/NierAutomata'', the same thing happens with [[spoiler:Eve]] after the death of [[spoiler:Adam]], which leads him to be the final boss of Ending A/B.
* In ''VideoGame/HeavyRain'', [[spoiler:Scott Shelby]] never gets over [[spoiler:his]] twin's death.
* We don't really see Viola [=DeWinter=] angsting over the death of her twin sister Kiki's death in ''VideoGame/SaintsRowTheThird'', but she is obviously shaken to the core by it in that scene, and runs over to the Saints almost immediately, abandoning her old gang to avenge Kiki.
* In the second ''VideoGame/InazumaEleven'' game, we're introduced to [[spoiler:Fubuki Shirou]] whose younger twin [[spoiler:Atsuya died in an avalanche along with their parents. The trauma resulted in Shirou developing a split personality based on Atsuya]].
* [[CreepyChild Wendy]]'s special ability in ''VideoGame/DontStarve'' is to summon the ghost of her dead twin, Abigail, to defend her. Reflecting this trope, Wendy takes reduced [[SanityMeter Sanity]] loss from darkness and monsters (due to [[DisabilityImmunity already being]] [[BrokenBird mentally traumatised]]) and her quotes in general are suitably depressed and [[StrawNihilist nihilistic]].
* Occurs in ''VideoGame/DragonAgeII'', as [[PlayerCharacter Hawke's]] two younger siblings are twins, and one of them, which one depends on Hawke's class, ''will'' die in the prologue. Carver reacts more immediately, lashing out and trying to blame Hawke for it, which is [[BerserkButton probably the closest the two of them ever got to coming to blows]]. Bethany's reaction is more delayed; she's sad of course in the first act, but she gets more and more depressed over it as time passes. At the end of the game, seven years after Carver died, Bethany says her biggest regret is that she didn't knock Carver on his "stupid ass" before he could charge that ogre.

[[folder:Visual Novels]]
* As mentioned above this sometimes happens to Shion and Mion in ''VisualNovel/HigurashiWhenTheyCry''.
* In ''VisualNovel/{{Shuffle}}!'', [[spoiler:Lisianthus had a twin named Kikyou who died before childbirth. As a result, Sia made a pact with Kikyou and ends up hosting her spirit within her body, giving her a SplitPersonality. In Sia's route, this is a major plot point]].
* In ''VisualNovel/DaCapoII Plus Communication'', [[spoiler:Akane had a twin named Ai who died before the main storyline began. In her grief, she made a wish on the sakura tree to revive Ai, which ended up with her sharing her body with Ai's spirit. When the sakura tree gets withered, the wish is cancelled.]]
* Itsuki, from ''VisualNovel/{{Suika}}''. [[spoiler:But not really. She was DeadAllAlong and her sister was in [[ConvenientComa coma]], making ''Sayo'' the true example, though she doesn't angst much.]]

* In ''Webcomic/{{Drowtales}}'', the ruling Sharen clan has an odd tradition of "hiring" (purchasing) infants of lowly birth as "protector twins" so their own children can know the experience of having a twin. Perhaps not surprisingly, the life expectancy of a protector twin is often relatively short, as the two usually end up in conflict that leaves one of them dead. Which is how it usually goes for other drow twins as well.
** As of chapter 46, [[spoiler:Kau, Sil'lice's son]], has become this thanks to the death of his natural twin sister [[spoiler:Shala]].

[[folder:Web Original]]
* In the ''Machinima/RedVsBlue'' mini-series "Recovery One", Agent South is introduced as one of these, with her brother North having died just as we meet her. [[spoiler:It turns out that she [[strike:killed him]] put him in a position to be killed, showing her to be angsty from the get go.]]
* In ''TroperWorks/LoversOath'', Bevel is shown to be one of these, though... [[spoiler: He doesn't realize his twin is still alive. The twin doesn't know Bevel's alive either.]]
* In ''Literature/{{Twig}}'', the twin sisters of the [[TheCaligula Baron Richmond]] are introduced serving as TheDragon to him, his bastard half-siblings. After the Lambsbridge Gang kill all but one, the sole survivor is struck by the lack of care her brother shows for their lives, and, after making a final attempt to kill the Lambs, crosses a DespairEventHorizon and gives up.
* In ''Podcast/TheAdventureZoneBalance'', [[spoiler:Taako]] is an angsty surviving twin, although the situation is complicated by [[spoiler:[[LaserGuidedAmnesia Lucretia using the Voidfish to erase the others' memories of Lup.]]]]

[[folder:Western Animation]]
* In ''WesternAnimation/TransformersPrime'', after [[TheBrute Skyquake]] gets killed by the Autobots, his twin [[NobleDemon Dreadwing]] comes to Earth to get revenge. Everything else comes second, including his loyalty to Megatron and the Decepticons. [[spoiler:This comes to a head when he finds out Starscream was the one responsible and later [[CameBackWrong raised Skyquake as a Terrorcon]], which causes him to go on a rampage and attempt to kill Starscream despite Megatron ordering him to stand down. He refuses, and he gets a hole through his spark for it.]]
* ''WesternAnimation/GravityFalls'': [[spoiler: Stanley Pines is one to his brother Stanford, doubly so considering he was (or at least considers himself) responsible for the accident that resulted in Stanford being sent to another dimension. Although he puts on a brave face and appears to be the wacky, money-hungry "Grunkle Stan" for most of the series, there are signs throughout the first season that Stanley was deeply affected by the loss of his twin, and he has in fact spent the last thirty years of his life trying to bring Stanford back (and he's eventually successful).]]
''WesternAnimation/Ducktales2017'': Donald Duck. It's unknown what exactly happened to his twin sister Della apart from the fact that [[spoiler: it involved something called the "Spear of Selene"]], but Donald is left raising her kids Huey, Dewey and Louie, and the incident caused Donald to cut ties with Scrooge. In addition, he becomes an OverprotectiveDad to the boys because of the incident.

[[folder:Real Life]]
* June Gibbons (of the notorious arsonist-novelist [[http://en.wikipedia.org/wiki/June_and_Jennifer_Gibbons Silent Twins]] of Wales) subverts this all to heck. In interviews, she misses Jennifer, who died the day they were released from prison, but seems cheerful enough.
** More than that: it's said the twins felt that one of them [[ThereCanBeOnlyOne had to die]] in order for the other other to be free and that Jennifer agreed to be the sacrifice so that June could have a happy life. Oh, but it wasn't suicide or murder or anything though. [[CreepyTwins She just died.]]
* ElvisPresley and Creator/PhilipKDick both had twin siblings (a brother, Jesse, in Elvis' case; a sister, Jane, in Dick's) who died as infants.
* Music/MichaelJackson had twin brothers Marlon and Brandon, the latter of whom died shortly after birth. Upon Michael's death, Marlon asked Michael to give Brandon a hug.
* There are a number of support groups and resources for "twinless twins," as this is definitely a truth in television for many.
* Among the many new specials trotted out for the 10th anniversary of the 9/11 attacks was a feature on the 46 people who lost their twin in the disaster.