"I can't hear it... I can't hear my other heartbeat anymore!"A pair of twins are introduced. They are portrayed as being 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 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?
— Jr./Rubedo, Xenosaga II.
- Since the twins are alike, less is lost to the story 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 Flanderizing a 'serious drama' into Death Is Cheap territory.
- It provides an opportunity to create angst, sorrow, anger, etc. into the character of the surviving twin. The surviving twin may even go from a character who never takes anything seriously to a genuine Action Hero.
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Anime & Manga
- Averted at the end of the Trigun Maximum manga in that 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. Knives, on the other hand, would probably have gone even crazier and angstier if Vash had died.
- Sometimes this happens in Higurashi: When They Cry, what with Alternate Universes. Sometimes it gets completely averted (failing to even mention the twin) and some of the unluckier times, well...
- Vampire Knight 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 Mars, Rei is introduced as a lively Delinquent Badass Biker 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 jumped to his death from the roof of a school, leaving Rei staring at a body that looked exactly like himself.
- Suboshi in Fushigi Yuugi, who is sufficiently broken by his twin's (perceived) death that he crosses the Moral Event Horizon in a big way to retaliate against the Suzaku warriors.
- And in a fairly horrible bit of irony, Amiboshi 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 The Dreaming 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...
- Tatsuya Uesugi in Touch
- Rai's death in Jyu-Oh-Sei drives the plot because of the angst it causes his twin Thor.
- Though not an actual twin, Shiki Ryogi in Kara no Kyoukai goes through something like this after she loses "the other Shiki" after a car accident. "The other Shiki" is in fact a male Split Personality, and in his memory she begins using his masculine manner of speech.
- In Chaos;Head, Yua Kusunoki's twin sister Mia died in the "Group Dive," the first First Gen incident. Yua then launches her own investigation into 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 ... doesn't take it well. Turns out that it was actually Yua who died and not Mia. Mia essentially _became_ Yua after her twin's death.
- In AR∀GO: City of London Police's Special Crimes Investigator, 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 Ewan is revived by Patchman to contain the Brionac Patchman divided into two, and as Patchman's spare Soul Jar. Ewan is finally Killed Off for Real in the last chapter when Ewan's consience finally resurface and he commits suicide by jumping off a high building, 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 Twin Switch moments; unfortunately for Nobara, their last switch ends up getting Kotori kidnapped, killed, and 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 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 the Big Bad had actually poisoned Sagi, and his sister Toki assumed her brother's identity to avoid succession issues.
- Works by CLAMP:
- In the Magic Knight Rayearth TV series, there's Presea's twin younger sister Sierra.
- Double-subverted in Angel Beats! with Ayato Naoi. His twin brother, a pottery prodigy, died; his father forced the surviving twin to become a Replacement Goldfish. 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 turned him into a psychotic hypnotist who thinks he's God.
- Played with in CLANNAD. Kyou and Ryou are non-obviously identical twins, differentiated by Only Six Faces and their vastly different hairstyles. There's a literal Bus Crash, 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 Freak Out!; she takes one look at the flipped bus and jumps to the conclusion that Ryou is dead and it's her fault, probably because she still wrongly blames herself for causing her parents' deaths and destroying their life's work.
- Happens very briefly in Full Metal Panic! 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 King of Thorn, twins Kasumi and Shizuku both contract the deadly disease Medusa, but only Kasumi is selected to into cryogenic sleep to wait for a cure, which upsets her greatly. 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.
- K has Adolf K. Weismann and his elder twin sister Klaudia, who is a Posthumous Character - her death is shown in a flashback. Her brother, now immortal, retreats to his airship and removes himself completely from the world for decades, until he gets body swapped with an Ordinary High-School Student and hit with amnesia. He even says that even though he witnessed the Colourless King murder someone, he's not interested enough to interfere.
- In Magical Girl Raising Project, 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. 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 Kurage no Shokudo, Youtarou finds it difficult to accept his brother's death. In fact, he attempted to kill himself, presumably to join his twin in death.
- This trope plays a role in the single most foreshadowed and biggest spoiler in Black Butler, unless you're one of the fans who guessed beforehand. As in, "Ciel Phantomhive" as we know him is actually the 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 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.
- Kate Kane, the post-Crisis Batwoman, lost her twin sister Beth and her mother in a terrorist attack when she was 12 years old. Or so she thought, since her first major villain, Alice, turned out be Beth, who was heavily implied to have undergone some serious Mind Rape.
- Pre-reboot Lady Shiva. 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 her daughter Cassandra that she misses Carolyn every day.
- Prince James is one of these in the Once Upon a Time fanfiction Once Upon A Time And Again, 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 Backup Twin and Spare to the Throne.
- This is brought up by Tsunade in Dreaming of Sunshine after 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, 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 Tales of the Abyss fanfic Reflections has this brought up or alluded to in regards to Asch and Luke though they aren't twins but original and replica, functionally they have acted as such since Luke joined the family and the Big Bad wants to invoke this to get Asch under his control.
- In chapter 56 of Kyon: Big Damn Hero, Tsuruya's Ninja Maid Shinobu tells Kyon how she used to be a women's rights activist in her youth who made powerful enemies that killed her sister in a Revenge by Proxy. Said sister was Tsuruya's mother.
- In the Star Wars franchise:
- Star Wars: Clone Wars, 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 Star Wars: Episode VIII — The Last Jedi, Rose Tico is introduced mourning the death of her twin sister. Leia becomes an angsty surviving twin if fraternals count.
- In 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 Single White Female is revealed to be this, both from the story she tells Allie—that her twin was stillborn—and from what 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 Avengers: Age of Ultron with Wanda, who tells Ultron she felt like she too had "died" following Pietro's death.
- Dead Ringers: 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 to die with Elliot.
- At the beginning of The Pretty One, 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 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.
- The Silmarillion: In one version of the "burn the ships" incident, Amras, one of Fëanor's twins, is on the ships when his father burns them. His twin Amrod becomes this afterward. note
- In Among Others by Jo Walton, Mori's twin dies shortly after the start of the book and she spends most of the book coping with her death. Then she sees her twin's ghost who tries to get her to commit suicide so they can be together.
- In David Eddings's 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."
- The Power of Five: Scott dies and Jamie lives.
- Wulfgar from Valhalla loses his brother to the protagonist in the first scene, setting up his quest for revenge.
- In Iain M. Banks's Culture novel Look to Windward, this is the backstory for the AI Mind of the Masaq Orbital, formerly the GSV Lasting Damage, which had been reunited with its Backup Twin 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 he is replicated and the copy instantly assumes the identity of the dead brother, for reasons explained in the book.
- Lightning by Dean Koontz. 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 Ursula K. Le Guin, 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 Angela's Ashes, when one of the young twins dies and the other one keeps pathetically saying his name, etc.
- Subverted in Tim Powers' The Stress of Her Regard. 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 (The Unfavorite) often pretended to be Julia, and that Julia eventually confronted and humiliated Josephine publicly to make her stop. After Julia's murder, Crawford is Mistaken for Murderer and Josephine tracks him down.
- Both played straight and subverted in Harry Potter. 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 he married Fred's ex girlfriend Angelina, he named his own son Fred, and Word of God says that he never fully got over Fred's death.
- The look on 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 George couldn't do more than a few takes of pretending his brother was dead as it was too much for him.
- In Blade of Fire (the second volume of Stuart Hill's The Icemark Chronicles) 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: 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.
- 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 that culminates in her falling to the Dark Side, becoming steadily more insane and disfigured by injuries, and eventually dying.
- Digby Geste from Beau Geste plays a bit with this; though he survives his twin Michael and even helps in making a funeral pyre for him, he feels a lack due to his twin's more dominant personality and he dies on the way back to Lagos.
- Galax-Arena: Mariam, after Istar dies in the arena.
- This is the premise of Twelfth Night, 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 Lemonade Mouth (but not the movie) — his twin choked on his umbilical cord and was stillborn. The family's visited his grave on every birthday.
- The 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 Dirge for Prester John.
- Isadora and Duncan Quagmire are Surviving Triplets in A Series of Unfortunate Events. They insist on being referred to as triplets, not twins, because they were not born twins. 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% Axe-Crazy.
- The Sweet Valley High 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".
- 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. Subverted when we find out that David was Dead All Along and the surviving twin is actually Harvey, who killed David in order to take his place.
- In The Secret Life of Bees, 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 Flowers in the Attic.
- 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 I Miss You I Miss You 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 The Bridge of San Luis Rey, Esteban and Manuel are so close that they have their own language and Twin Telepathy. 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 Interrupted Suicide.
- In one of many possible interpetations, Colin Whisterfield in Alan Garner's 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 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.
- Wings of Fire: Peril is haunted by the fact she killed her twin while still in their egg. It fuels her belief that she was hatched to kill others, something enforced by her queen. It turns out the story is a lie. Her Missing Mom was forced to kill her brother not soon after they hatched.
Live Action TV
- The Star Trek: Deep Space Nine 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 Starfleet Corps of Engineers series is set on their homeworld. This story features another angsty surviving twin.
- This is Justine's prime motivation in Angel. Her twin sister Julia was killed by vampires.
- Patsy Parisi from The Sopranos. 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 onThe 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 As the World Turns 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 All My Children was this after both times his twin brother and Morality Pet Stuart was presumed dead, promptly engaging in self-destructive behavior that nearly ended his life as well.
- 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 The Originals moved to New Orleans prior to the pilot to research on the death of her twin brother Sean, who 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 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 Crazy Ex-Girlfriend, 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.
- Doctor Who: After "The Day of the Doctor", Osgood and the Zygon, who took her shape, grow closer and almost become The Dividual, 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 "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 Bonnie becomes the second Osgood to maintain the peace.
- Riverdale begins with Cheryl and Jason, two very close Half Identical Twins. While out on a boat ride, Jason goes mysteriously missing. Cheryl is assumed to have killed Jason. This is later debunked. Jason tried to fake his death and 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 her attempting suicide in the season finale.
- In the Evillious series of 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) her tyranny as a queen and the unforgivable atrocities she had once committed. mothy , being 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 The Fray is about a girl whose twin sister has died; the singer tries to convince her not to give up on life afterward.
- In The Strange Case of Dr. Jekyll and Mr. Hyde, 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.
- Subverted in Twelfth Night, which opens with Viola having washed up from a shipwreck that she assumes claimed the life of her Half-Identical Twin Sebastian. After angsting for a bit, she disguises herself as a boy, very similar to him, which causes all sorts of confusion when he turns out not to be dead at all.
- MOTHER 3 has Lucas, who loses his mother and twin brother, Claus, within a day of each other in the game's first chapter. Almost all of his screentime after that point is of him grieving. His Silent Protagonist status after the timeskip leaves much to interpretation, but if nothing else he's melancholic and not particularly talkative.
- In Golden Axe, the dwarf Gilius Thunderhead was planning to avenge his twin brother by defeating Death Adder, then committing suicide to join him in death.
- In Xenosaga, even though Jr. (Rubedo) has spent the better part of two games trying to kill his Axe-Crazy 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 Chrono Cross.
- Aegina in Blaze Union, during her route.
- Fatal Frame:
- In Fatal Frame II: Crimson Butterfly 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 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.
- 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.
- 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 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.
- Fatal Frame IV: Mask of the Lunar Eclipse: 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.
- In Fatal Frame II: Crimson Butterfly 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:
- Mona Sax in Max Payne, whose identical twin sister Lisa was murdered during the events of the first game. In the seconed game, Max waxes all poetical about how it must have been for Mona in his voice-over narration.
- In the Halo series, 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 go absolutely apeshit on you.
- As shown in the above picture, in NieR after Devola is killed midway through the boss battle, Popola goes through a massive Villainous Breakdown where she's driven mad by grief. She rejects Nier's plea to give up, screaming at him that No One Stops. In NieR: Automata, the same thing happens with Eve after the death of Adam, which leads him to be the final boss of Ending A/B.
- In Heavy Rain, Scott Shelby never gets over his twin's death.
- We don't really see Viola DeWinter angsting over the death of her twin sister Kiki's death in Saints Row: The Third, 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 Inazuma Eleven game, we're introduced to Fubuki Shirou whose younger twin Atsuya died in an avalanche along with their parents. The trauma resulted in Shirou developing a split personality based on Atsuya.
- Wendy's special ability in Don't Starve is to summon the ghost of her dead twin, Abigail, to defend her. Reflecting this trope, Wendy takes reduced Sanity loss from darkness and monsters (due to already being mentally traumatised) and her quotes in general are suitably depressed and nihilistic.
- Occurs in Dragon Age II, as 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 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.
- As mentioned above this sometimes happens to Shion and Mion in Higurashi: When They Cry.
- In SHUFFLE!!, 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 Split Personality. In Sia's route, this is a major plot point.
- In Da Capo II Plus Communication, 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 Suika. But not really. She was Dead All Along and her sister was in coma, making Sayo the true example, though she doesn't angst much.
- The Player Character of the otome game Shall We Date?: Ninja Shadow is Saori, a Bifauxnen Action Survivor whose girly-looking twin brother Kaname was murdered in front of her in the game's Downer Beginning. She takes up his place in a Vigilante Man group he was supposed to join to both help their village and avenge his death, with her levels of inner angst depending heavily on which romance route the player chooses for her.
- In 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, Kau, Sil'lice's son, has become this thanks to the death of his natural twin sister Shala.
- In the Red vs. Blue mini-series "Recovery One", Agent South is introduced as one of these, with her brother North having died just as we meet her. It turns out that she
killed himput him in a position to be killed, showing her to be angsty from the get go.
- In Lovers Oath, Bevel is shown to be one of these, though... He doesn't realize his twin is still alive. The twin doesn't know Bevel's alive either.
- In Twig, the twin sisters of the Baron Richmond are introduced serving as The Dragon 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 Despair Event Horizon and gives up.
- In The Adventure Zone: Balance, Taako is an angsty surviving twin, although the situation is complicated by Lucretia using the Voidfish to erase the others' memories of Lup.
- In Transformers Prime, after Skyquake gets killed by the Autobots, his twin Dreadwing comes to Earth to get revenge. Everything else comes second, including his loyalty to Megatron and the Decepticons. This comes to a head when he finds out Starscream was the one responsible and later 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.
- Gravity Falls: 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).
- Ducktales 2017: Donald Duck. It's unknown what exactly happened to his twin sister Della apart from the fact that 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 Overprotective Dad to the boys because of the incident.
- June Gibbons (of the notorious arsonist-novelist 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.
- Elvis Presley and Philip K. Dick both had twin siblings (a brother, Jesse, in Elvis' case; a sister, Jane, in Dick's) who died as infants.
- Michael Jackson 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.