History Main / DoppelgangerCrossover

* One short fanfic had ''{{NCIS}}'''s medical examiner Dr. Donald Mallard, better known as Ducky, mistake {{Rizzoli and Isles}}'s medical examiner Dr. Maura Isles for his friend Kate (he was involved in a small accident). It can be assumed to be Kate Todd from the first two seasons because Kate just happens to be played by the same actress who plays one of the title characters from Rizzoli & Isles. Any guesses? http://www.fanfiction.net/s/6162024/1/A_Resemblance

* Ever wonder why [[http://www.fanfiction.net/Dharma_Greg_and_Criminal_Minds_Crossovers/1375/2362/ there's a ''CriminalMinds''/''DharmaAndGreg'' crossover section over at Fanfiction.net]]? Because Thomas Gibson was in both shows, inspiring fics where [[CriminalMinds Agent Hotchner (a.k.a. "Hotch")]] is actually [[DharmaAndGreg Greg]] in disguise and vice versa.
** This has also happened with [[{{Glee}} Sue Sylvester]], [[ICarly Sam's mother]], and [[CriminalMinds Reid's mother]] due to Jane Lynch playing all three characters.
* There is a [[http://www.getphpbb.com/phpbb/viewtopic.php?t=3676&mforum=sarmy fanfic]] on Sarmy, a [[{{Heroes}} Sylar]] and {{Zachary Quinto}} fansite, which crosses almost every role Zachary Quinto has ever played. [[{{Heroes}} Sylar]], [[StarTrek Spock]], Sasan, [[TwentyFour Adam Kaufner]], and tons of guest appearances feature in the fic.

** Plenty of fanfic also involving [[{{Slayers}} Lina Inverse]] meeting up with female Ranma. Or the latter and [[NeonGenesisEvangelion Rei Ayanami]]. There was even one with [[VideoGirlAi Ai Amano]]. Blame MegumiHayashibara and her amazingly prolific career.

* [[http://www.fanfiction.net/s/5531412/1/From_Prometheus_to_12 This fic, From Prometheus to 12]] plays with the concept that [[BattlestarGalactica Felix Gaeta]] and [[DeathNote L]] are the same person.

* In the Operations Manual for WestEndGames' GhostBusters: A Frightfully Cheerful Roleplaying Game, published in 1986, contains an adventured titled "The Couch Potato," in which (assuming the players are using the characters from the movie) Dr. Peter Venkman meets a character named Dr. Hunter Panama. The manual notes right away that Doctor Panama is based on Dr. Hunter Thompson and suggests watching the movie "Where the Buffalo Roam," in which he is played by Bill Murray (who, in case you can't guess, also played Dr. Venkman), to give you ideas on how to play the character.

** Bellatrix Lestrange, meet [[Film/SweeneyToddTheDemonBarberOfFleetStreet Mrs. Lovett]] and [[{{AliceInWonderland}} The Red Queen]].

--> -- [[StarTrekTheOriginalSeries Pavel Chekov]] taking [[Series/Babylon5 Alfred Bester]] into custody, during the ''Fanfic/UndocumentedFeatures'' story [[http://www.eyrie.net/UF/ "A Day of Infamy"]].

* Apart from the natural "Booth is a sanshued Angel" fics, there have been a couple of {{Bones}}/{{Angel}} fics where Angel somehow meets Booth.
* At least one Anthony Head doppelgänger ''{{Series/Merlin}}''/ Series/{{BuffyTheVampireSlayer}} fic exists with Uther and Giles meeting.

* One short fanfic had {{NCIS}}'s medical examiner Dr. Donald Mallard, better known as Ducky, mistake {{Rizzoli and Isles}}'s medical examiner Dr. Maura Isles for his friend Kate (he was involved in a small accident). It can be assumed to be Kate Todd from the first two seasons because Kate just happens to be played by the same actress who plays one of the title characters from Rizzoli & Isles. Any guesses? http://www.fanfiction.net/s/6162024/1/A_Resemblance

* Ever wonder why [[http://www.fanfiction.net/Dharma_Greg_and_Criminal_Minds_Crossovers/1375/2362/ there's a Criminal Minds/Dharma and Greg crossover section over at Fanfiction.net]]? Because Thomas Gibson was in both shows, inspiring fics where [[CriminalMinds Agent Hotchner (a.k.a. "Hotch")]] is actually [[DharmaAndGreg Greg]] in disguise and vice versa.

* When ''Manga/RanmaOneHalf'' crosses over with ''AhMyGoddess'', it is inevitable that Belldandy and Kasumi (both [[YamatoNadeshiko sweet, innocent, domestic characters]] voiced by KikukoInoue) sit down to trade recipes, or better yet, collaborate on a meal.

--> -- [[StarTrekTheOriginalSeries Pavel Chekov]] taking [[BabylonFive Alfred Bester]] into custody, during the ''Fanfic/UndocumentedFeatures'' story [[http://www.eyrie.net/UF/ "A Day of Infamy"]].

* A target of frequent fic speculation is voice actress KotonoMitsuishi, whose incredibly broad portfolio of roles offers a vast range of possibilities: imagine, if you will, an intersection of any two or more of [[NeonGenesisEvangelion Misato Katsuragi]], [[DragonHalf Mink]], [[SailorMoon Usagi Tsukino]], [[ExcelSaga Excel Excel]], [[DeadOrAlive Christie]], [[GundamSeedDestiny Murrue Ramius]], [[KaleidoStar Cathy Taymor]], [[FullMetalAlchemist Gracia Hughes]], [[FruitsBasket Kagura Soma]], [[{{Noir}} Mireille Bouquet]], [[RevolutionaryGirlUtena Juri Arisugawa]], [[OruchubanEbichu Ebichu]] and [[TetsuwanBirdy Birdy Cephon Altirra]] -- just to name a ''few''.

* ''BuffyTheVampireSlayer''/''{{Firefly}}'' crossovers have at least three special variations unique to them, one where Xander initially panics upon meeting Mal Reynolds because of the latter's resemblance to Caleb, and one where cast members from ''{{Angel}}'' mistake Zoe for Jasmine or Jayne for Hamilton.
* Related to above, there are a number of ''{{Firefly}}''/''TheSarahConnorChronicles'' crossovers that usually feature Cameron being mistaken for River, often with Alliance soldiers getting curb stomped.

* ''BuffyTheVampireSlayer'' and ''VeronicaMars'' share enough actors to make an arsenal of this, albeit most of them in minor roles in the latter. And that's without getting to the fact that Veronica dated [[Film/{{X-Men}} Iceman]] and Mac dated [[{{Smallville}} The Flash]]. It's superhero central, guys.

* One can only speculate at just what the hell happened to [[{{Firefly}} Badger]] once the crew left him to make him straighten up, learn the law and start ste-- no, wait, that one's already covered. Still, going from kinda-Cockney crime boss to [[BattlestarGalactica President of the Colonies]], pretty impressive feat.

* The first "Echo is [[BuffyTheVampireSlayer Faith]]" fics started showing up less than 24 hours after ''{{Dollhouse}}'' was announced -- i.e., more than a year before the first episode aired. AmyAcker getting cast didn't help.
* Aside from the above example of Xanatos and Riker, ''{{Gargoyles}}'' and ''StarTrekTheNextGeneration'' shared Marina Sirtis, Michael Dorn, Brent Spiner, Le Var Burton, and Colm Meaney. Cameos from other ''Star Trek'' series included Kate Mulgrew as fairy queen Titania (often disguised as a human scientist) and Nichelle Nichols as the female lead's mother. Crossovers milked this for all it was worth.

* Similar to the ''{{Buffy}}'' / ''{{Firefly}}'' example above, it's popular in fan-works to suggest that Richard {{Castle}} is either a distant ancestor of or is in some TimeyWimeyBall-way connected to Malcolm Reynolds.

* At least one Anthony Head doppelgänger ''{{Series/Merlin}}''/ {{BuffyTheVampireSlayer}} fic exists with Uther and Giles meeting.

* Speaking of Valve, they also played it straight in the canon works: they originally had an idea for a scientist called Greg to be playing off Cave Johnson in ''{{Portal 2}}'', but decided it was idiotic to hire a voice actor for just a few lines. Instead, they decided to use [=GLaDOS's=] voice actor for what we now know as Caroline, and the fact that [[spoiler:Caroline was eventually made into [=GLaDOS=]]] is history.

* There now exists an entire genre of {{Star Trek}} fiction where Bones is actually [[Doom John "Reaper" Grimm]], or at the very least, his something-great grandson.

* Lets just say that the relationships between [[{{Torchwood}} Captain John Hart]] and [[Series/BuffyTheVampireSlayer William The Bloody]] really run the gamut from being same person to being enemies, friends, lovers or basically anything else you can imagine.

* At least one Anthony Head doppelgänger ''Series/Merlin'' and {{BuffyTheVampireSlayer}} fic exists with Uther and Giles meeting.

* Apart from the natural "Booth is a sanshued Angel" fics, there have been a couple of fics where Angel somehow meets Booth.

You may desperately want [[StarTrek Riker]] to meet [[{{Gargoyles}} Xanatos]], or Manga/RanmaOneHalf to be a reincarnation of {{Inuyasha}}, or you might just want to see what happens when [[Series/{{Farscape}} John Crichton]] takes the place of [[{{Stargate}} Cameron Mitchell]], and don't even ''start'' on what would happen if [[StarWars Han Solo]] bumped into [[IndianaJones Henry Jones Jr.]]. The end result, however is the same. A Doppelganger Crossover.

* Lets just say that the relationships between [[{{Torchwood}} Captain John Hart]] and [[BuffyTheVampireSlayer William The Bloody]] really run the gamut from being same person to being enemies, friends, lovers or basically anything else you can imagine.

* Interestingly subverted in a few ''{{House}}'' fanfics that somehow add [[JeevesAndWooster Jeeves to the mix instead of Bertie]]. Guess which one was played by HughLaurie?
** [[spoiler: If you guessed "Bertie," you're right.]]
* Played ''amazingly'' straight in [[http://community.livejournal.com/indeedsir/506390.html?thread=7493142#t7493142 Jeeves and the Evil Twin]], a ''JeevesAndWooster'' fanfic in which Jeeves comes home from vacation to find that Jack Dalliard (one of StephenFry's recurring characters in ''ABitOfFryAndLaurie'') has been not only impersonating him but abusing and raping Bertie.

* There seem to be quite a few ''{{Supernatural}}'' and ''DarkAngel'' crossover fics. Their ubiquity isn't surprising, as Jensen's characters in ''Dark Angel'', the twins Ben and Alec, were genetically engineered, and thus could conceivably be clones of Dean. In light of that, and the TwinThreesomeFantasy trope, it was probably inevitable. However, ''Dark Angel'' is set TwentyMinutesIntoTheFuture. So, if Dean isn't going to be in his forties, time travel or alteration to canon is necessary. Or heck, they could be parallel universes. One form of fic which is surprisingly common despite messing '''heavily''' with the timeline is the story in which Alec left Seattle after "Freak Nation" and became Dean.

You may desperately want [[StarTrek Riker]] to meet [[{{Gargoyles}} Xanatos]], or [[RanmaOneHalf Ranma]] to be a reincarnation of [[InuYasha Inuyasha]], or you might just want to see what happens when [[Series/{{Farscape}} John Crichton]] takes the place of [[{{Stargate}} Cameron Mitchell]], and don't even ''start'' on what would happen if [[StarWars Han Solo]] bumped into [[IndianaJones Henry Jones Jr.]]. The end result, however is the same. A Doppelganger Crossover.

* When ''[[RanmaOneHalf Ranma 1/2]]'' crosses over with ''AhMyGoddess'', it is inevitable that Belldandy and Kasumi (both [[YamatoNadeshiko sweet, innocent, domestic characters]] voiced by KikukoInoue) sit down to trade recipes, or better yet, collaborate on a meal.

*** Yeah, the pic comes from advertising ''It's A Rumic World'', a compilation of short works by RumikoTakahashi, by using the main characters of her three most famous series: ''{{Inuyasha}}, [[RanmaOneHalf Ranma 1/2]]'', and ''UruseiYatsura''. Inuyasha even [[LampshadeHanging lampshades this trope]] by demanding to know [[KappeiYamaguchi why Ranma has his voice]].

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/Picture_5.png]]
[[caption-width-right:350:Seems a bit like [[TalkingToHimself talking to yourself]].]]

* Popular in ''Series/DoctorWho'' fandom, especially ''ThisTimeRound''. In particular, the Minister of Chance from ''Death Comes To Time'' is secretly ''every'' character StephenFry has ever played, ''especially'' [[AbsolutePower Charles Prentiss]].

* Popular in ''DoctorWho'' fandom, especially ''ThisTimeRound''. In particular, the Minister of Chance from ''Death Comes To Time'' is secretly ''every'' character StephenFry has ever played, ''especially'' [[AbsolutePower Charles Prentiss]].

* Popular in ''DoctorWho'' fandom, especially ''ThisTimeRound''. In particular, the Minister of Chance from ''Death Comes To Time'' is ''every'' character StephenFry has ever played, ''especially'' [[AbsolutePower Charles Prentiss]].