History Main / Doppelganger

* EvilCounterpart: A character (not related to the hero) who is very similar, but ForWantOfANail turned evil.

* MangledCatchPhrase: One person imitates another but screws up the first person's CatchPhrase.

* ReplicantSnatching: Or when a robot/alien peels off the original's skin and wears it.

* AlternatePersonalityPunishment — An alternate personality or clone of the perpetrator gets punished.
* AlternateSelf — It's the same person, but in a different timeline and leading a different life.
* AlternateSelfShipping — Shipping a character with their alternate personality or clone.
* AlternateUniverse — self-explanatory.

* ArtificialHuman — [[OurClonesAreIdentical Clones]] and [[OrganicTechnology bioroids]] are one common way of making duplicates.
* BodyDouble — A leader uses lookalikes to make assassination more difficult.
* BodySnatcher — Doppelgängers created by bodily possession.
* ChangelingTale — When TheFairFolk [[InvasionOfTheBabySnatchers abduct children]], they often [[RedHeadedStepchild leave behind]] a "changeling".
* CelebrityImpersonator — Somebody looks like and is mistaken for a famous person
* CloneByConversion — Being transformed into somebody else's doppelgänger.
* CostumeCopycat — When a hero is impersonated by someone in a nearly identical costume.
* CriminalDoppelganger — When the person's double is also coincidentally a wanted criminal.
* DeadPersonImpersonation — When one person takes over another's identity.
* DifferentlyDressedDuplicates — The person has been copied, but their clothes haven't.
* DoppelgangerAttack — When one person makes multiple physical copies of oneself for combat.
* DoppelgangerSpin — When one person makes multiple harmless copies and circle the target to distract them.

* EasyImpersonation — When a hero is impersonated by someone in a not-even-similar costume.
* EvilCounterpart — A character (not related to the hero) who is very similar, but ForWantOfANail turned evil.
* EvilDoppelganger — The MirrorUniverse counterpart of the hero.
* EvilKnockoff — when a robotic duplicate or clone is made of a hero with the purpose of destroying them.
* EvilBrunetteTwin — The Evil Twin has darker hair.
* EvilTwin — When a character has an evil sibling or alternate reality duplicate.
* FaceStealer — When a villain has to harm another character in some way to look like them.
* FreakyFridayFlip — When two people switch bodies, the result is remarkably doppelgänger-like.
* GenderBentAlternateUniverse — If said person is a gender-bent version of themselves.
* {{Humanshifting}} — A type of shapeshifter that turns into humans.
* IdenticalGrandson — SuperpowerfulGenetics is so strong, it can give you the original person back!
* IdenticalStranger — For some reason, the gene sequencing fairy took the day off and you have an unrelated twin.
* IdentityImpersonator — Creating a doppelgänger of the SecretIdentity to prove that our hero is not the superhero.
* InexplicablyIdenticalIndividuals — Not clones. Not related. They all just ''happen'' to look, talk, act, and think alike.
* JekyllAndHyde — When the person is their own doppelgänger.
* LegendaryImpostor — Con artist tries to copy a well-known SecretIdentity for profit or fun.
* LiteralSplitPersonality — A character's alter-egos are represented by multiple entities.
* MirrorSelf — The antithesis of the hero. Often wears black.
* MobileSuitHuman — When the robot duplicate is piloted by a tiny alien.
* MySiblingWillLiveThroughMe — When a sibling takes over a person's identity.
* OddballDoppelganger — A clone or a lookalike of a character looks just a bit... off.
* OppositeSexClone — A clone of the opposite sex of the original.
* OurClonesAreIdentical — An index of clone tropes.
* ReplicantSnatching — Or when a robot/alien peels off the original's skin and wears it.
* RobotMe — When the doppelgänger is a robot.
* SeparatedAtBirth — Two (often but not always identical) twins are, well, separated at birth.
* SplitAtBirth — A singular being separates into multiple entities at birth.
* SurgicalImpersonation — When the doppelgänger used MagicPlasticSurgery to impersonate someone.
* TemporalDuplication — Multiple versions of the same person at different points of time, around the same place.
* TwinSwitch — Twins momentarily impersonate each other.

* ActuallyADoombot — When the person is revealed to be a robotic duplicate.
* AllegedLookalikes — Two characters are mistaken for another in-universe but show no physical similarities to the audience.
* AllianceOfAlternates — When multiple alternate selves ally with the main one.
* AmbiguousCloneEnding — Did the original kill the clone, or is the clone the survivor?
* BadImpressionists — Impressions done badly for laughs.
* BecomingTheMask — What happens to many doppelgängers.
* BodyDouble — When this trope is used to protect Very Important Persons.
* CaptureAndReplicate — Someone is kept alive while their captor impersonates them.
* ConfrontingYourImposter — When the real character and the faker come face to face.
* CounterpartCombatCoordination — Fighting your doppelgängers.
* CreepyChild — Often come in twos, or more.
* DifferentlyDressedDuplicates — Time travel duplicates dress differently.
* DistaffCounterpart — Very similar to the original character, just the opposite gender. Often a rival or villain.
* DoppelgangerCrossover — Fanfiction crossing over two works featuring the same actor in different roles.
* DoppelgangerGetsSameSentiment — The doppelgänger gets the same emotional reaction as the original.
* DoppelgangerReplacementLoveInterest — That LoveInterest that just died? They have a duplicate that wants to shack up with you.
* DuplicateDivergence - Doppelganger that started out identical, but differentiates over time.
* EmergencyImpersonation — An impersonator tries to fill in for someone else and HilarityEnsues.
* ExpendableClone — The tendency to see these doubles as highly expendable, if not abominations to be killed.
* FutureMeScaresMe — That's who I turn into?!
* GenderedOutfit — When an OppositeSexClone, DistaffCounterpart, or GenderBender wears an opposite-gender version of an established outfit.
* GlamourFailure — Not all doppelgängers can hide their tells.
* ImpostorExposingTest — A test to identify an alien or supernatural impostor.
* ImposterForgotOneDetail — An impersonator fails to to be convincing.
* InkSuitActor — Animated characters made to look very similar to the actors that play them.
* ISayWhatISay — Doppelgängers speaking in unison.
* KillAndReplace — A character murders another and takes their identity, usually by adapting their own appearance.
* KillingYourAlternateSelf — When doubles & alternates of characters meet. And then kill each other.
* MangledCatchPhrase — One person imitates another but screws up the first person's CatchPhrase.
* MesACrowd — When someone tries to clone themselves.
* MiniMe - A smaller version of an existing character. Can ''possibly'' fit into the above subcategory if the copy is sentient.
* MirrorMatch — When a character fights themselves (or a reasonably close match) in a video game.
* MirrorMoralityMachine — A character is made into their moral opposite thanks to {{Phlebotinum}}.
* MirrorUniverse — Home to many morality opposite versions of a cast.
* MistakenForAnImposter — Someone is mistaken for an imposter of themselves.
* NeverTheSelvesShallMeet — Encountering one's doppelgänger is bad news in and of itself.
* OpeningACanOfClones — A story with clones, especially when used to revive dead characters or undo plot, makes the events lose punch.
* OtherMeAnnoysMe — A character is irritated by an alternate version of themselves.
* PreferableImpersonator — People like the doppelgänger more than the original.
* PrinceAndPauper — Two people switch lives.
* ThePsychoRangers — An ''entire team'' of doppelgängers to the FiveManBand.
* ScrewYourself — Yes, there is PowerPerversionPotential to be had here (also RuleThirtyFour).
* ShapeshiftingFailure — {{Shapeshifting}} is sometimes imperfect or too short-lived.
* SpotTheImposter — When the friends of the impersonated have to figure out who the spy is.
* TeleporterAccident — One surefire way to create a duplicate, evil or otherwise.
* TreacherousSpiritChase — A malign entity poses as a dead loved one to lead the hero into peril.
* {{Twinmaker}} — A clone is made to replace a dead original.
* TwinTest — A character is tasked with differentiating between identical siblings by at least one of those siblings.
* VillainsBlendInBetter — Most villainous doppelgängers easily impersonate their target.
* YouAreWhoYouEat — A non-human shapeshifts into the form of the person they've eaten.

* AlternateSelfShipping -- Shipping a character with their alternate personality or clone.

* BodyDouble -- A leader uses lookalikes to make assassination more difficult.

* GenderBentAlternateUniverse - If said person is a gender-bent version of themselves.