->'''Seth Green:''' How about letting us come aboard and help you with your whip-smart plots?\\
'''Ron Moore:''' Help? Why would I need help writing plots? I just throw a dart at the cast list, and...boom! They're a Cylon! Rinse, repeat, cash the f*cking check. Watch! Sh'boom! Sh'bong! Sh'bing! Cylon. Please help me! This is so hard!
-->-- ''WesternAnimation/RobotChicken''

This trope refers to creating a fictional subcategory that can be applied to any character and then applying it ad nauseam to most of the cast. Possibly as a method to create a MetaOrigin (it usually fails).

See also: FlockOfWolves. Compare EveryoneIsRelated, where the category is a family. Contrast TheyLookLikeUsNow.

'''Obviously, beware of spoilers!'''


[[folder: Anime and Manga ]]

* ''Manga/MahouSenseiNegima'' is a bit guilty of this. Although most of the cast was considered normal at the start of the series (excluding Sayo the ghost and Chachamaru the robot,) since then it has been revealed that [[spoiler:Yuuna, Misora, Konoka, Hakase, Takamichi, Chao, and the Headmaster]] were all involved in magic from the beginning, and [[spoiler:Evangeline, Mana, Zazie, and Setsuna]] are demonic. Asuna is practically her own category.


[[folder: Comic Books ]]

* Lampshaded in the ''ComicBook/GreatLakesAvengers'', where the team renamed themselves The Great Lakes ComicBook/XMen after it was revealed that the entire team was made up of mutants.
** This was also a parody of the then popularity of various "X-Titles".
** It's a justified trope in the Marvelverse, mind; all the other origins are one-in-a-billion freak occurrences, or inventions by 99.999999th-percentile geniuses [[ReedRichardsIsUseless who for some reason keep their potentially world-changing inventions to themselves]]. Mutants are a ''demographic.''
* By the finale of ''ComicBook/StrangersInParadise'', nearly every female character in the series except Francine turns out to be [[spoiler:a current or former Parker Girl]].
* In the ''ComicBook/DoctorWhoTitan'' story "The Twist", all of the human inhabitants of the Twist are not descended from the original colonists, who all died in an accident, but humans genetically reconstructed by the sentient descendants of the foxes also carried on the starship.


[[folder: Film ]]

* About two thirds into ''Film/{{Identity}}'', it's revealed that [[spoiler:every single character at the motel is a personality of Malcolm Rivers, and the whole movie was a plot to kill off his alternate identities, curing his Multiple Personality Disorder.]]
* In Creator/JohnCarpenter's ''Film/TheWard'', [[spoiler:the ghost, and the women she's trying to kill, turn out to be a result of one character's multiple personality disorder]].


[[folder: Literature ]]

* OlderThanRadio: ''Literature/TheManWhoWasThursday'' (1908) by G.K. Chesterton: The hero, who is an undercover policeman is drawn into the murky world of anarchists. He discovers that one of their number is also an undercover policeman. As the story continues, his attempts to apprehend anarchists force all of them to reveal that they are policemen, too.
* The Literature/{{Discworld}} novel ''Discworld/MonstrousRegiment'' is about a SweetPollyOliver going off to war. Gradually over the course of the story, [[spoiler:she discovers that more and more of her comrades are also women, some in more convincing disguises than others. All of them, in fact, including the troll. Even the bluff old SergeantRock, who also happens to be aware that a good third of the high command are women in disguise, along with Nuggan-knows how many of the troops. The country has been at war for so long that all the men have simply been killed off.]]
* In ''Literature/WitchWeek'' by Creator/DianaWynneJones, the protagonist is secretly a person with innate magical talent in a world where such "witches" are feared and hunted. He learns that one of the other students at the school he attends is also secretly a witch. Then another. And another. Also, some of the teachers. (The deputy principal isn't really a miser, he just has no money because he's a witch and the principal is blackmailing him with the threat of exposure. The principal, unbeknownst to him, is also a witch.) In the end it turns out that, as a result of a supernatural event in the 17th century, ''everybody in the world'' is a witch, but they're all hiding it from each other for fear of persecution.


[[folder: Live Action TV ]]

* The second ''Series/{{Battlestar Galactica|2003}}'' made nearly half the cast Cylons. Although there was plenty of evidence to suggest that [[spoiler:Tyrol]] was one, and even that [[spoiler:Tigh OR Ellen was one -- which necessitates the other]]. Not to mention precedent of sleeper agents. This was not planned out in advance however, but rather a hasty improvisation by the writers.
* ''Series/{{Heroes}}'' often had characters revealed to have powers.
* ''Series/BuffyTheVampireSlayer'': At the start of the show, only Buffy was anything other than a normal human, but by the end, several supernatural beings had joined their group, and almost everyone else had learned how to practice magic.
* ''Series/{{Dollhouse}}'': [[spoiler:Lubov]] is a doll! [[spoiler:Mellie]] is a doll! [[spoiler:Saunders]] is a doll! Season 2 brings even more.
* ''Series/TrueBlood'': The folks with powers will soon outnumber the normal people in Bon Temps.
* ''Series/{{V 2009}}'': Seems like every third character is secretly a V sleeper. [[spoiler:''Two'' of Erica's FBI partners were Visitors--not to mention her obstetrician.]]
* In the ''Series/DoctorWho'' story, "[[Recap/DoctorWhoS18E3FullCircle Full Circle]]", the inhabitants of the Starliner are not descendants of the original crew and passengers, but descendants of indigenous life-forms who massacred them and then took on their forms.
* In the ''Series/StarTrekDeepSpaceNine'' episode "Shadowplay", Odo and Dax beam down to a village and investigate the disappearance of a number of villagers. It turns out the village and its inhabitants are holograms - news which they take surprisingly well - and the device that powers them is wearing down. Dax is able to fix the device, but not before discovering that the village elder is a flesh and blood life form and the creator of everyone and everything around him. He doesn't want his fellow villagers to know he's different from them and responsible for their existence; Dax and Odo agree not to tell them.
* ''Series/TheGoodPlace'' is about what happens when someone who was a petty, selfish jerk on Earth is sent to Heaven after they die due to a mix-up. [[spoiler: Except that she actually is in Hell. And the other three humans there who think they're in Heaven are also in Hell. And everyone else is a demon. Except for the anthropomorphic computer program.]]


[[folder: Tabletop Games ]]

* Part of the point of ''TabletopGame/{{Paranoia}}'' is that player characters are dystopian special forces charged with exterminating mutants and secret society conspirators. The players, but not their characters, are fully aware that ''everyone'' in this dystopia is a conspirator and mutant.


[[folder: Video Games ]]

* From ''VideoGame/KingdomHeartsII'' onwards, almost every single mysterious character manages to be [[spoiler:a form of Sora]], no matter how illogical or unlikely it seems. The only ones who aren't are the ones who actually turn out to be [[spoiler:a form of Xehanort.]]
* Subtle one in ''VideoGame/SilentHill2'', all male models in game who aren't Eddie are [[spoiler:James]]. Pyramid Head, the corpses all over the place, the prisoners, the Lying Figures, all of them. Similarly, most female models are [[spoiler:Mary]].
* Right near the end of ''VideoGame/AssassinsCreed2'', you find out that every helpful adult not your mother or named Leonardo [=DiVinci=] is [[spoiler:an assassin that's been helping you become one of them.]]


[[folder: Web Comics ]]

* In ''Webcomic/ItsWalky'', several cast members are revealed to be former abductees.


[[folder: Real Life ]]

* By the late 1950s, the Communist Party USA was in heavy decline thanks to [[UsefulNotes/JosephMcCarthy McCarthyism]]. However, the FBI maintained a paranoid obsession with it, and dedicated huge resources to tracking it, to the extent that undercover FBI informants made up as much as 30% of the party, and were crucial to its continued finances. J. Edgar Hoover later admitted that ironically, the FBI's undercover membership bolstering and financing of the CPUSA probably enabled it to avoid collapse.
* For a day, everyone became Marco in the Animorphs discord. Ironically, the person who started this had Tomato as their username.