[[quoteright:350:[[Series/KaizokuSentaiGokaiger http://static.tvtropes.org/pmwiki/pub/images/OhbainGavan_2999.jpg]]]]
[[caption-width-right:350:Creator/KenjiOhba, Creator/KenjiOhba, and Creator/KenjiOhba.]]

->''"So," Chekov clapped his hands in eagerness, "who's the problem?" When Riker pointed down at the deck, he blinked and said, "Oh, there he is." He knelt down and rolled the still-senseless Bester over, checking him for weapons. "Rather a handsome devil, isn't he?"''\\
''"We hadn't noticed," Worf growled.''
-->-- '''[[Series/StarTrekTheOriginalSeries Pavel Chekov]]''' taking [[Series/BabylonFive Alfred Bester]] into custody, during the ''Fanfic/UndocumentedFeatures'' story [[http://www.eyrie.net/UF/ "A Day of Infamy"]].

Let's say you're a fanfic writer. Let's make another assumption and say that you like a particular actor and everything they've ever been in, because they were in it.

It's entirely possible that you may write a DoppelgangerCrossover, a story in which two characters played/voiced by the same actor meet each other. Or that they ''are'' each other. In other words, a crossover which is only happening because the two sources share an actor.

You may desperately want [[Series/StarTrekTheNextGeneration Riker]] to meet [[WesternAnimation/{{Gargoyles}} Xanatos]], or [[Manga/RanmaOneHalf Ranma Saotome]] to be a reincarnation of {{Inuyasha}}, or you might just want to see what happens when [[Series/{{Farscape}} John Crichton]] takes the place of [[Series/StargateSG1 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.

On occasion, this can be one part of a MassiveMultiplayerCrossover. Compare IWantYouToMeetAnOldFriendOfMine.

* Played straight in ''[[http://www.fanfiction.net/s/8532906/1/iFightCrimeWithVictorious iFight Crime With Victorious]]'' when two of Miranda Cosgrove's characters, [[ICarly Carly Shay]] and [[DrakeAndJosh Megan Parker]] meet thanks to Megan's precognitive power. This serves as a plot point since Megan thinks that [[spoiler:she is seeing herself in her visions of the future, but the person in them is actually Carly]]. When they meet, Megan [[LampshadeHanging comments on]] how much their personalities contrast despite their similar appearance.
* Actually ''inverted'' in the ''HogansHeroes'' story ''[[http://www.fanfiction.net/s/7222614/1/Return-of-the-Informer Return of the Informer]]'': the author takes one recurring actor playing seven different characters, and has these characters being one and only hapless guy (the aforementioned informer, now defected to the Allies and turned spy against his will). It's frequently hilarious (especially the "Oh no - him again!?" reactions of the main cast) and often quite touching.
* Lets just say that the relationships between [[Series/{{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.
* When ''Manga/RanmaOneHalf'' crosses over with ''Manga/AhMyGoddess'', it is inevitable that Belldandy and Kasumi (both sweet, innocent, domestic characters voiced by Creator/KikukoInoue) sit down to trade recipes, or better yet, collaborate on a meal.
** Subverted in Chris Davies' MegaCrossover ''Together Again 1996 Chapter'', where it's revealed that Kasumi is a reincarnated inhabitant of the [[Anime/SailorMoon Silver Millennium]] with some very strong, very negative opinions about "the monsters who call themselves gods" (to use her words from the story), and who is outright hostile to Belldandy. However, they seem to get along ''much'' better in another story in that series, ''Together Again 2937 Chapter''.
** There was also at least one ''Ranma'' fanfic crossing over with ''MagicKnightRayearth'', on the basis that Hikaru Shidou looks like Girl-type Ranma.
** Plenty of fanfic also involving [[{{Slayers}} Lina Inverse]] meeting up with female Ranma. Or the latter and [[Anime/NeonGenesisEvangelion Rei Ayanami]]. There was even one with [[Manga/VideoGirlAi Ai Amano]]. Blame MegumiHayashibara and her amazingly prolific career.
** The some-odd Ranma[=/=]{{Inuyasha}} crossovers where Ranma invariably turns out to be Inuyasha's reincarnation. They're up in the article itself for a reason. In addition, the two actually encountered each other semi-officially in an animated promotion for ''It's A Rumic World''[[note]](A compilation of short works by Creator/RumikoTakahashi; the short used the main characters of her three most famous series: ''{{Inuyasha}}, Manga/RanmaOneHalf'', and ''UruseiYatsura''.)[[/note]], which once provided the page illustration. Inuyasha even [[LampshadeHanging lampshades this trope]] by demanding to know [[Creator/KappeiYamaguchi why Ranma has his voice]].
* HarrisonFord has such a career with fingers in the pies of so many fandoms that he is almost a too-obvious go-to person for this fanfic trope. What happens when Literature/JackRyan tries to rescue the president aboard Film/AirForceOne? What if [[Film/BladeRunner Lieutenant Deckard]] is chasing Film/TheFugitive? What if Film/IndianaJones found the wreckage of the ''[[StarWars Millenium Falcon]]'' in the Northwest United States while looking for Bigfoot? (That one is an ''official'', non-canon comic story, mind you.) And most importantly, [[UltimateShowdownOfUltimateDestiny who would win in a fight?]]
* There are umptynine ''Series/{{Life On Mars|2006}}'' fics that reveal that Sam Tyler is... in fact, [[Series/DoctorWho the Master.]]
* In ''Lost Ones'', a ''Ben10UltimateAlien'' crossover with the DC Universe, Gwen fights Slade, who remarks that [[WesternAnimation/TeenTitans "You remind me of someone I knew a long time ago, she was a lot like you. You Even sound like her too...let's just say that someone with the power of Geokinesis used to work for me."]] Considering the fact that AshleyJohnson plays both Gwen and Terra, it's pretty fun, though they haven't met each other yet.
* A target of frequent fic speculation is voice actress Creator/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 [[Anime/NeonGenesisEvangelion Misato Katsuragi]], [[Anime/DragonHalf Mink]], [[Anime/SailorMoon Usagi Tsukino]], [[Anime/ExcelSaga Excel Excel]], [[VideoGame/DeadOrAlive Christie]], [[Anime/GundamSeedDestiny Murrue Ramius]], [[Anime/KaleidoStar Cathy Taymor]], [[Manga/FullMetalAlchemist Gracia Hughes]], [[Manga/FruitsBasket Kagura Soma]], [[Anime/{{Noir}} Mireille Bouquet]], [[Anime/RevolutionaryGirlUtena Juri Arisugawa]], [[Anime/OruchubanEbichu Ebichu]] and [[Anime/BirdyTheMighty Birdy Cephon Altirra]] -- just to name a ''few''.
* ''VideoGame/SuperRobotWars'' parodies this anytime [[Anime/NeonGenesisEvangelion Misato Katsuragi]] and [[MobileSuitGundam Amuro Ray]] show up in the same game. Why? Because they're [[Anime/SailorMoon Sailor Moon and Tuxedo Kamen]]!
* The OfficialFanfictionUniversity of [[Fanfic/{{The OfficialFanfictionUniversity of Middle-Earth}} Middle-Earth]] contained a chapter where the "teachers" (read: cast of ''LordOfTheRings'') were all replaced by other characters played by the same actors. Wasn't that the fault of the original two ProtectorsOfThePlotContinuum, who were visiting? Or was that a different event?
* ''Series/StargateSG1'' and ''Series/MacGyver''. There are too many of these fics, far too many [=JackGuyvers=]. There are way too many Starscape fics. Also (but not so often) called Fargate.
* ''Series/BuffyTheVampireSlayer''/''Series/{{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 ''Series/{{Angel}}'' mistake Zoe for Jasmine or Jayne for Hamilton.
* There are a number of ''Series/{{Firefly}}''/''TheSarahConnorChronicles'' crossovers that usually feature Cameron being mistaken for River, often with Alliance soldiers getting curb stomped.
* Philip Akin appeared as a regular in the first season of ''[[Series.WarOfTheWorlds War of the Worlds]]'', Adrian Paul in the second. Since both actors also appeared in ''Series/{{Highlander}}: The Series'', crossovers make up a sizable proportion of ''War of the Worlds'' fanfic, either with Kincaid as a cover identity for [=Macleod=] or one being mistaken for the other.
* [[Series.TheSentinel Captain Simon Banks]] has been mistaken for the Immortal [[Series/{{Highlander}} Carl Robinson]]. Similarly, a certain [[Series/{{Highlander}} Really Old Guy]] either gets mistaken for or actually is [[Series.TheSentinel a certain serial killer]]. [[PeterWingfield Methos]] gets around a lot in general.
* ''Series/{{Andromeda}}'' all but canonized the notion that Dylan Hunt is the reincarnation of [[HerculesTheLegendaryJourneys Hercules]].
* Masi Oka portrayed lab-guy Franklin on ''{{Scrubs}}'' and now portrays Hiro Nakamura on ''Series/{{Heroes}}'', a fact picked up on in one or two fanworks.
* ''Series/BuffyTheVampireSlayer'' and ''Series/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]]'s identical twin and Mac dated [[{{Smallville}} The Flash]]. It's superhero central, guys.
* Done in reverse, with the official ''Comicbook/{{X-Men}}''/''Series/StarTrekTheNextGeneration'' crossover which featured Captain Picard meeting Professor Xavier, but came out before the first Film/{{X-Men}} movie. Made even funnier by a character remarking that both share a likeness.
* One can only speculate at just what the hell happened to [[Series/{{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 [[Series/BattlestarGalacticaReimagined President of the Colonies]], pretty impressive feat.
* The ''Film/HarryPotter'' and ''Literature/{{Twilight}}'' series both feature actor RobertPattinson in their respective film adaptations, although it would take some rather violent [[HandWave Hand Waving]] to make Cedric Diggory and Edward Cullen the same person. This has mostly been fodder for the [=MuggleNet=] CaptionContest. Cedric seems to have become a much more popular character in ''Harry Potter'' fanfiction since the first ''Twilight'' movie.
* Bellatrix Lestrange from ''Film/HarryPotter'', meet Mrs. Lovett of ''Film/SweeneyToddTheDemonBarberOfFleetStreet'' and The Red Queen ''Literature/AliceInWonderland''.
* The first "Echo is [[Series/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. Creator/AmyAcker getting cast didn't help.
* Aside from Xanatos and Riker, ''WesternAnimation/{{Gargoyles}}'' and ''Series/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.
* There seem to be quite a few ''Series/{{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.
* Interestingly subverted in a few ''Series/{{House}}'' fanfics that somehow add [[Series/JeevesAndWooster Jeeves to the mix instead of Bertie]].
* Played ''amazingly'' straight in [[http://community.livejournal.com/indeedsir/506390.html?thread=7493142#t7493142 Jeeves and the Evil Twin]], a ''Series/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.
* Bringing this trope to new extremes, there's ''[[http://www.amazon.com/Shatnerquake-Jeff-Burk/dp/1933929820 Shatnerquake]]'', where every single character that Creator/WilliamShatner has ever played comes along to whale on the man himself.
* ''BusouRenkin'' fanfic writers like to crossover with ''RurouniKenshin'', usually making Kazuki into Kenshin's son.
* A fanfic that crossed over ''Series/{{JAG}}'' with ''ThePretender'' had Lt. Cmdr. Rabb mistake Miss Parker for his former partner Lt. Caitlin Pike. Both Miss Parker and Lt. Pike were played by Andrea Parker.
* There are fics out there about Legolas meeting [[PiratesOfTheCaribbean Will Turner]] and/or [[Film/KingdomOfHeaven Balian]] and/or Orlando Bloom himself.
* [[ICarly Carly]] / [[DrakeAndJosh Megan]]. A few people go so far as to add Summer Hathaway, from ''Film/SchoolOfRock'', into a MirandaCosgrove Doppelganger OT3.
* There is a ''DrHorriblesSingAlongBlog''/''Series/HowIMetYourMother'' crossfic where Barney Stinson [[ScrewYourself seduces]] Dr. Horrible. There are also countless ''DrHorriblesSingAlongBlog''/''Series/HowIMetYourMother'' crossovers where Barney secretly is Dr Horrible... The fact the gang where looking for Doppelgängers was a subplot for a season or so helps.
* ''HigurashiNoNakuKoroNi'' and ''MagicalGirlLyricalNanoha''? Since Rika and Nanoha share [[Creator/YukariTamura a voice actress]], there have been fan videos that involve the two.
* One short fanfic had ''Series/{{NCIS}}'''s medical examiner Dr. Donald Mallard, better known as Ducky, mistake RizzoliAndIsles'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. [[http://www.fanfiction.net/s/6162024/1/A_Resemblance Any guesses?]] Not the only thing involving Ducky Mallard, played by David [=McCallum=], there are fics out there of him either being related to or ''being'' Illya Kuryakin from TheManFromUNCLE, [=McCallum=]'s breakout role. Which is kinda weird since an ActorAllusion line early in the seris made reference to Ducky's resemblance to Illya.
* [[http://www.fanfiction.net/s/5531412/1/From_Prometheus_to_12 This fic, From Prometheus to 12]] plays with the concept that [[Series/BattlestarGalacticaReimagined Felix Gaeta]] and [[Manga/DeathNote L]] are the same person.
* Claude from ''Series/{{Heroes}}'' being secretly the [[Series/DoctorWho Ninth Doctor]] was a very popular idea for a time.
* Ever wonder why there's a ''Series/CriminalMinds''/''Series/DharmaAndGreg'' [[http://www.fanfiction.net/Dharma_Greg_and_Criminal_Minds_Crossovers/1375/2362/ crossover section over at Fanfiction.net]]? Because Thomas Gibson was in both shows, inspiring fics where [[Series/CriminalMinds Agent Hotchner (a.k.a. "Hotch")]] is actually [[Series/DharmaAndGreg Greg]] in disguise and vice versa.
* This has also happened with Sue Sylvester (''Series/{{Glee}}''), Sam's mother (''Series/ICarly ''), and Reid's mother (''Series/CriminalMinds'') 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 [[Series/{{Heroes}} Sylar]] and ZacharyQuinto fansite, which crosses almost every role Zachary Quinto has ever played. [[Series/{{Heroes}} Sylar]], [[Film/StarTrek Spock]], Sasan, [[Series/TwentyFour Adam Kaufner]], and tons of guest appearances feature in the fic.
* While [[FanFic/{{ITSMYLIFE}} TEEN FORTRESS 2]] isn't explicitly a Doppelganger Crossover, it does substitute [[EllenMcLain Principal GLaDOS for the Announcer.]] In said fic, Principal [=GLaDOS=] is actually Caroline's mother, and not the woman herself.
* 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 ''VideoGame/{{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.
* Popular in ''Series/DoctorWho'' fandom, especially ''Fanfic/ThisTimeRound''.
** In particular, the Minister of Chance from ''Death Comes To Time'' is secretly ''every'' character StephenFry has ever played, ''especially'' [[Radio/AbsolutePower Charles Prentiss]].
** John Elliott, who started this, also wrote "[[http://www.whofic.com/viewstory.php?sid=43267 All I Ask]]", in which [[Creator/TomBaker the Fourth Doctor]] is confronted by an incarnation of [[Series/{{Blackadder}} Captain Redbeard Rum]].
** The fic "[[http://www.whofic.com/viewstory.php?sid=5411 In the Cafe of Reasonable Comfort]]" has [[spoiler: Rowan Atkinson]] in his multiple roles.
** The events of "The Name Of The Doctor" mean that any character played by Creator/JennaLouiseColeman can be a fragment of Clara and [[FandomSpecificPlot save the Doctor's life in a crossover]].
* It's popular in fan-works to suggest that Richard Castle from ''Series/{{Castle}}'' is either a distant ancestor of or is in some TimeyWimeyBall-way connected to ''Series/{{Firefly}}'''s Malcolm Reynolds.
** Similarly to the ''Buffy / Firefly'' example above, fics where the characters from ''Buffy'' mistake the friendly and decent Castle for the psychotic Caleb and HilarityEnsues are pretty common.
* Apart from the natural "Booth is a sanshued Angel" fics, there have been a couple of {{Bones}}[=/=]Series/{{Angel}} fics where Angel somehow meets Booth.
* At least one Anthony Head doppelgänger ''Series/{{Merlin}}''[=/=]''Series/BuffyTheVampireSlayer'' fic exists with Uther and Giles meeting.
* There now exists an entire genre of ''Film/StarTrek'' fiction where Bones is actually [[VideoGame/{{Doom}} John "Reaper" Grimm]], or at the very least, his something-great grandson.
* It can be rather difficult to watch ''MyLifeInFilm'' and not see Jones as ''Series/{{Sherlock}}'''s Jim Moriarty. Especially when he starts talking about burying people in back gardens.
* In the Operations Manual for West End Games' ''Film/{{Ghostbusters}}: A Frightfully Cheerful Roleplaying Game'', published in 1986, contains an adventure 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. The manual also remarks that two Bill Murray characters playing off each other appeals to their schizophrenia.
* There is at least one ''Manga/FullmetalAlchemist''[=/=]''OuranHighSchoolHostClub'' crossover fan fic which exists purely because the English dubs of both animes have the same voice cast.
* Can happen in canon. Creator/KenjiOhba has played a HenshinHero in ''Series/SpaceSheriffGavan'' and two Franchise/SuperSentai series, so naturally, when Gavan [[Film/KaizokuSentaiGokaigerVsSpaceSheriffGavanTheMovie crossed over]] with ''Series/KaizokuSentaiGokaiger'', [[Series/BattleFeverJ Battle Kenya]] and [[Series/DenshiSentaiDenziman Denji Blue]] were along for the ride. Only fanboy Gai can tell them apart (and considers the differences ''obvious''). Sadly, HiroshiMiyauchi has never gotten to do this in a TV series or movie: on the two occasions that ''Series/JAKQDengekitai'' and ''Series/HimitsuSentaiGoranger'' have wound up in the same place, Miyauchi only played his ''JAKQ'' character, Big One, with Aoranger being just one more suited stuntman doing chop-socky in the background. In the ''Let's Go Kamen Rider'' megacrossover, neither Series/KamenRiderV3 ''nor'' [[Series/KaiketsuZubat Zubat]] ever demorphed, though both were voiced by him. Still, in-universe, Miyauchi's characters have met a few times now, though only one at a time got what most consider a full appearance. The only time Miyauchi did get to meet himself was in [[http://www.youtube.com/watch?v=BmCKR3UiEJw an ad]] for the video game ''VideoGame/SuperHeroSakusenDaidaruNoYabou'', in which V3 and Zubat appeared in their civilian forms.
* Norman Reedus' two most famous characters are Murphy [=MacManus=] in ''Film/TheBoondockSaints'' and Daryl Dixon on ''Series/TheWalkingDead''. As of this writing, there are 44 ''Walking Dead''/''Boondock Saints'' [[http://www.fanfiction.net/Boondock-Saints_and_Walking-Dead_Crossovers/1954/7763/ crossover fics]] on Website/FanfictionDotNet, making it the most common crossover for either fandom.[[note]]There are also 30 ''Supernatural''/''Walking Dead'' crossovers and 23 ''Supernatural''/''Boondock Saints'' crossovers, but then again, ''Series/{{Supernatural}}'' crossovers are popular with just about ''every'' "genre" film or series.[[/note]] [[ContrivedCoincidence Coincidence?]]
* Has grown incredibly popular recently in the ''Series/{{Sherlock}}'' fandom, with actors Martin Freeman being in ''Film/TheHobbit'' and Benedict Cumberbatch acting in the newest ''Film/{{Star Trek|Into Darkness}}'' film.
** There are a ton of ''Sherlock'' crossovers with ''Radio/CabinPressure'', also starring Cumberbatch; his character Martin Crieff is often revealed to be a third Holmes brother.
** And now Cumberbatch has also voiced Smaug in the second ''Hobbit'' film. Now there's a proposal for an imagination exercise.
* In ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', the Season 2 villain Discord is inspired by the RealityWarper Q from ''Series/StarTrekTheNextGeneration'', even being played by the same actor, John de Lancie. There have since been numerous works of fan art and fan fiction that show that Discord ''is'' Q, usually by way of the TNG Enterprise crew visiting Equestria.
* [[http://archiveofourown.org/works/100760 "Astra Major"]] is a short story written by [=FlirtyFroggy=], an avid Bamber Bunnny. The fic features Archie Kennedy from ''Series/{{Hornblower}}'' and "Apollo" Lee Adama from ''Series/BattlestarGalacticaReimagined'', both played by Creator/JamieBamber. His fans told him at one convention that they liked to live in a world where Archie didn't die and asked him about his theory on how Archie had survived. Mr Bamber replied: "When they carried his corpse away, aliens came down and resuscitated him, and now he's living on Astra Major in some other galaxy. And maybe Lee Adama will come across him, and asks: 'What the hell is going on with you, Arch?'" This answer inspired the author to write her story.
* There are quite a few fan fics featuring Midshipman (Lieutenant) Archie Kennedy from ''Series/HoratioHornblower'' and Lord Tony Dewhurst from ''Series/TheScarletPimpernel'', both portrayed by then-25-year-old Creator/JamieBamber. It seems to be a particularly good fit because both series (first episodes) are set in 1793. Several stories make those two [[TheCutie Cuties]] cousins and their identical looks are explained as uncanny family resemblance. WordOfGod has it that Archie is the third son of a Scottish Lord, so it all fits together. The stories tend to be FixFic because the pattern of ChronicallyKilledActor started to appear. [[http://archieology101.tripod.com/backgrounds.htm#cousins Here]] is a list of cousin stories from ''Archieology 101''. [[note]]For instance, see [[http://www.hhfic.com/castle.html "Castle Out Of Check"]] by Jan Lindner (GenFic, FixFic). [[http://web.archive.org/web/20061017130124/http://www.io.com/~cortese/stories/show.cgi?fandom=hornblower&filename=doppel.txt "Doppelgänger"]] by Janis Cortese (SlashFic, explicit, bitter-sweet) subverts the expectations because in this story, Horatio meets Tony when Archie is lost and presumed dead, and he's shattered by the resemblance.[[/note]]
* ''VideoGame/SuperRobotWars''
** ''VideoGame/{{Super Robot Wars Z}}2: Saisei-Hen'' has Ribbons Almark (''Anime/MobileSuitGundam00'') and Amuro Ray (''Anime/MobileSuitGundam'') interacting and eventually fighting each other.
--->'''Amuro:''' Ribbons! I am nothing like you!\\
'''Ribbons:''' This is the difference between my power and yours.
** Full Frontal and Char Aznable ''VideoGame/{{Super Robot Wars Z}}3: Jigoku-Hen''. In fact, Full Frontal even works for Char [[spoiler: until the Axis colony drop. Full Frontal is the one who caused it.]]
* An ad for ''VideoGame/DisneyInfinity'' features the game's versions of [[Film/PiratesoftheCaribbean Jack Sparrow]] and [[Film/TheLoneRanger Tonto]] meeting each other, the non-computer generated versions of both characters played by Johnny Depp.
* Crossing ''Film/BillAndTed'' with ''Franchise/TheMatrix'' due to Creator/KeanuReeves being in both isn't unheard of. In particular is [[http://www.billandted.org/stories/masakochan/matrixend.html ''An Alternate Ending to Matrix Revolutions'']], with a side of MindScrew.
* It's not uncommon for fans of ''Series/{{EUReKA}}'' and ''Series/{{Warehouse 13}}'' to say that Carl Carlson and Artie Nielsen are the same person. It helps that both shows are canonically in the same SharedUniverse.
* For ''Series/{{Community}}'' fics that fancy bringing the angst and Hurt/Comfort on, one option is to imagine that Britta, played by Gillian Jacobs, is the same character that Jacobs plays in the movie ''Gardens of the Night'', a dark drama about a young woman who is kidnapped as a child and forced into prostitution. It helps that Britta is implied at times to have had a rough childhood with possible molestation involved, albeit usually played for BlackComedy instead of drama.