Intercontinuity Crossover

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Considering that now Doctor Doom and Darth Vader are both owned by the same company...note 

Jigsaw: You wallow in hypocrisy, Angus. Your life has been dedicated to nonviolence, which you advance by jerry-rigged poisons and explosives, pretending that using one form of violence over another makes you better than others... Well, now it is time to see how far you're — did you just turn your manacles into laser beams?
MacGyver: Yep.
Jigsaw: ...Crap.
— Hypothetical MacGyver-Saw crossover.

Having a Crossover between two related shows is one thing — it's not inconceivable that some of the Cheers cast should turn up in Frasier, is it? Or that characters from JAG could turn up on NCIS. Or that the CSI team might help out the guys in CSI: NY every now and again.

What happens when Jay and Silent Bob turn up in Scream 3? Or Cliff and Norm from Cheers book into St. Elsewhere for medical attention? Or a police officer from the grittily realistic Homicide: Life on the Street arrests Fox Mulder of The X-Files? Or the CSI team finds a corpse in a hotel that isn't a corpse, just Angel? Well, then you've got yourself a different kettle of fish altogether. And to add insult to injury, the fish are probably from Finding Nemo and The Little Mermaid.

There are a few reasons why this happens. Sometimes it's because both series are owned by the same network or company, and it wants to improve the ratings on the one show by having the cast from the more popular show appear in it. Sometimes it's because both shows share writers or producers and they think it would be amusing to link the two. And sometimes it's just because someone somewhere thought it would be cool.

Most crossovers of this kind are between properties that are owned by the same company or person, which makes legal wrangling easier. But sometimes characters will cross over into another company's properties, like the occasional events from rival comic book firms DC Comics and Marvel Comics.

It makes quite a difference whether the crossover reveals that the characters have supposedly been sharing the same world the whole time; or if they're "just" from Another Dimension. While not as big a deal if both series are "relatively" realistic, such as Crime Dramas, if each show has its own version of fantastic events a la Fantasy or Science Fiction; then the implication is that these elements have been existing side by side the whole time, unaware of each other. It also makes for some great Fridge Logic. "Hey, Problem A for Cast B is no big deal, if Cast A and B are friends, why don't they just ask for help?" Of course, Superman Stays out of Gotham, and Reed Richards Is Useless as always.

For more information and examples, see Thom Holbrook's Crossovers and Spin Offs Master List, which documents all known crossovers between TV series, except for cartoons. With this information, the site has been able to identify no fewer than 38 contiguous TV "universes" (as of March 2008) which are home to widely disparate (and apparently unlikely) combinations of series from different eras and networks. For instance, see Holbrook's "Group 2"ninety-four series (as of March 2012) ranging from Six Feet Under and Everybody Loves Raymond to Law & Order and The X-Files, taking in M*A*S*H, Cop Rock, and Home Improvement along the way. Thanks to the baroque web of interconnections and crossovers, it is suggested that these shows all inhabit the same universe. (Holbrook also discovered the "Jean-Claude Van Damme is dead" plague that poses a grave threat to any future crossovers including Star Trek and other Group 10 shows.)

It has been noted on this and other sites that the web of crossovers connects many shows, directly or indirectly, to St. Elsewhere. Since that entire series was shown in its final episode to be the fantasy of an autistic mental patient, it has become a Stock Epileptic Tree that all of reality is All Just a Dream of an autistic mental patient. In the words of Dwayne McDuffie, one of the executive producers of Justice League, "The last five minutes of St. Elsewhere is the only television show, ever. Everything else is a daydream."

For the webcomic equivalent of the TV crossover list, see the Webcomic Crossover & Cameo Archive.

Some fanfics specialise in lobbing together lots of fandoms together in one big Mega Crossover. (And speaking of fanfics, if you're not sure if a crossover exists for a given pair of fandoms, remember that Rule 50 is in effect - it probably exists somewhere.)

When this trope happens with three or more series instead of two, it's a Massive Multiplayer Crossover. When the two settings are blended so as to be one unified setting that partakes of elements from both, that's a Fusion Fic.

When each others' works of fiction appear in-universe as fiction in a stable fictional loop, that's Mutually Fictional. When a work of fiction itself appears in its own story, that's Recursive Canon.

Compare Crossover, Fake Cross Over. See also Vegas Crossover, Transplant, Fully Absorbed Finale, Guest Fighter, and Ultimate Showdown of Ultimate Destiny.


Examples:

    open/close all folders 

    Anime & Manga 
  • Part of the Red Ribbon Army story arc on Dragon Ball had Goku chasing Captain Blue to Penguin Village, the setting of Akira Toriyama's earlier manga/anime, Dr. Slump, and featured appearances by Arale, Dr. Norimaki, and several other characters. This appeared in the manga and anime (since both shows were made by Toei and aired on Fuji TV); moreover, when Dr. Slump was animated again in 1997, a new Dragon Ball crossover was written in.
    • Toriyama already did that in Dr. Slump itself: there was one chapter where the characters traveled to Wonder Island, the set of the titular manga (and Toriyama's very first published work).
  • The Air/Kanon crossover manga. (Key/Visual Arts)
  • Apparently mostly because the author of Fairy Tail really liked Flunk Punk Rumble they made a crossover called Fairy Megane.
    • That the author of Flunk Punk Rumble's favorite author happens to be the author of Fairy Tail probably helped, as well a former assistant of his. What's most stunning of all is that despite being SERIOUSLY WTF, it actually ain't half bad.
    • Fairy Tail also had a crossover with the story Mashima wrote before it, Rave Master. The Jiggle Butt gang appeared in the anime as well.
  • The Fate/stay night X Magical Girl Lyrical Nanoha and Magical Girl Lyrical Nanoha X Fate/kaleid liner PRISMA☆ILLYA collaboration manga that both started in the March 2010 issue of Comp Ace magazine.
  • And then there's the Detective Conan/Lupin III crossover TV special...
    • This was because the anime adaptations of both series were produced by TMS Entertainment.
  • Dragon Ball and One Piece in Cross Epoch.
    • At one of the Jump Fiesta events they featured another crossover of Luffy and Goku going up against Eneru above the city of Tokyo. Other characters get short cameo and Ryotsu of Kochikame made an appearance (as seen here). They would later do this again only this time against Arlong and Astro Boy was thrown into the mix.
  • Slayers VS Orphen
  • Rodimus's backstory in Transformers Energon states that he left Cybertron with a band of Autobots and "traveled into the future", which reflects the ending of Transformers: The Headmasters, in which he ventures off into space to find/found a new home planet.
  • To promote the Jump Superstars game for the DS, a manga was included for those who preordered drawn by the people behind Eyeshield 21. A standard "sucked into a world to defeat the villain" affair but damn if its not cool seeing Naruto, Luffy, Goku, Toujou, and Bobobo work with Seta to kick Dr. Mashrito's butt. Check it out here.
  • It's not much, but in G Gundam, during the finale episode where all the world's Gundams had banded together to fight the Dark/Devil Gundam, you can see Gundams from other series in the mob. For example, both the standard RX-78-GP01 and the RX-78-GP01 Full Vernian, the Wing Gundam, RX-78-2, etc. They weren't kidding when the said they had all the Gundams!
  • In-universe example in Bakuman。: Crow and +Natural are two manga drawn by the same artist, the former about a crow-man (or something like that, the premise is never stated), while the latter is about a kid who finds he's psychic. Fast forward to a time where +Natural is doing poorly while Crow remains among the most popular of Jump, and you get the protagonist of Crow showing up in +Natural, saying he's also a psychic. (We only know so much about the Shows Within A Show, so we can't be sure that they're in different continuities, but given the plots and the characters' reactions, this seems to be the case.)
  • Boku wa Tomodachi ga Sukunai and Seitokai no Ichizon.
  • There's also the Minky Momo vs. Creamy Mami OVA.
  • This has become a recent trend with Shonen Jump manga, and the anime adapted from them.
    • Gintama and Sket Dance had a crossover chapter for each manga, and two corresponding crossover episodes.
    • Toriko and One Piece had two crossover episodes (one of which was adapted from a manga crossover).
    • And, most recently, One Piece, Toriko, and Dragon Ball Z'' had a crossover episode, though it obviously had no bearing on the continuity of any of the anime involved.

    Card Games 

    Comic Books 

    Fan Works 

    Film 
  • Freddy vs. Jason.
  • Randolph and Mortimer Duke from Trading Places — reduced to homeless poverty by the events of that film — show up in Coming to America. They fail to notice Prince Akeem's uncanny resemblance to Billy Ray Valentine.
  • As a random gag in the third act of Wayne's World, Wayne gets pulled over by a cop on a motorcycle… who turns out to be the T-1000, looking for John Connor. He shows up again in Last Action Hero.
  • In Casper, the bad guys attempt to de-haunt the house using the services of Father Guido Sarducci, and Dr. Ray Stanz from Ghostbusters ("Who you gonna call? Someone else!") According to The Other Wiki there was also a scene filmed with Zelda Rubenstein (Tangina Barrons from Poltergeist) but it was cut.
  • In Little Nicky, when Nicky goes to Heaven he finds Chubbs, who had died in the earlier Adam Sandler film Happy Gilmore, as a dance instructor.
  • King Kong vs. Godzilla, in which the King of Monsters and King of Kong duke it out on Mount Fuji. It is epic.
  • George of the Jungle ends with George holding George Jr. over the very same rock where Simba was similarly held. It's all Disney. And George kicked some serious lion's ass, so it could be canon.
  • The comic book Star Wars Tales #19 has an alternate history story where Han and Chewie crash-land the Millennium Falcon on Earth, where it is found 126 years later by Indiana Jones. Later, Industrial Light & Magic was hired to do the effects for Star Trek: First Contact, and some wiseguy at ILM snuck the Falcon into the Battle of Sector 001 as a Freeze-Frame Bonus/Easter Egg.
  • Christopher Walken said that when he read the script for Click, he decided that Morty was the same character as Gabriel in The Prophecy and played him accordingly. This is especially noticeable if you watch the two films back-to-back: "It's time to come home".

    Literature 

    Live Action TV 
  • The king of the intercontinuity crossover is undoubtedly Detective John Munch, played by Richard Belzer, who has appeared as of Summer 2007 on ten different programs. Originally a regular on Homicide: Life on the Street, during the course of that series he appeared in three crossovers with Law & Order. When Homicide finished he went on to become a regular in Law & Order: Special Victims Unit. Not only that, but he also made guest appearances in Law & Order: Trial by Jury, The Beat, Paris Enquêtes Criminelles, The X-Files, Arrested Development, and Sesame Street. And in August 2007, he filmed an episode for the fifth season of The Wire.
    • Interestingly, there's an episode of Homicide in which Munch refers to people "watching The X-Files." You could take this as a paradox, or you could figure that Munch — a hard-core conspiracy theorist — leaped at the chance to play himself in an X-Files episode. Which might explain why the interrogation room in that X-Files ep looked completely different from the interrogation room in Homicide.
    • There is uncertainty over whether Belzer appears as Munch on The Wire; the character was not named and received a generic billing. He mentioned that he used to own a bar, however, which he did in Homicide, so there's some evidence that it was intended to be Munch.
    • Taken even further with Luther, in which the titular character tells a subordinate to check out an American felon by sending their profiles to Munch in New York. Celebrity Paradox kicks in, considering that the London cop John Luther and Baltimore gangster Stringer Bell in The Wire are both played by Idris Elba.
  • MTM shows did this occasionally. Carla from Cheers talked about having given birth at St. Elegius, aka St. Elsewhere, and the doctors showed up at the Cheers bar once. Sam also once directed patrons to take an ailing man to St. Elegius. Similarly, Bob from The Bob Newhart Show made reference to St. Elegius, while Bob's secretary Carol showed up on Murphy Brown as a temp for Murphy, thereby enfolding it into the autistic daydream which ended St. Elsewhere. See above for more information.
  • The TARDIS, the Living Ship from Doctor Who, has appeared in the sitcoms Red Dwarf (set in the far future) and Chelmsford 123 (set in 123 AD).
    • The Doctor and Rose showed up for a panel of Buffy Season 8, which means that aliens and demons may (if it's canon) exist in the same universe.
    • The Doctor Who/EastEnders crossover (of very dubious quality, but it was for charity) Dimensions in Time could also be mentioned, although it's actually not in either of the shows' continuities (and indeed, since then they've both featured each other as fictional programmes).
    • The Kaldor City Doctor Who Expanded Universe audio dramas written by Chris Boucher and produced by Magic Bullet are set in the titular city from the Doctor Who story The Robots of Death (also by Boucher), but feature Scott Fredericks reprising the role of Psychostrategist Carnell from the Blake's 7 story "Weapon" (also by Boucher). The A History by Lance Parkin (an un-official history of the Whoniverse) makes a valiant attempt to claim that B7 may well be set in the Whoniverse, but really it's probably best to assume he's an Alternate Universe counterpart. Or just don't worry about it. (There's also a cynical manipulator played by Paul "Avon" Darrow, who knows more about Carnell's Federation background than the Kaldorians, but let's not even get started on that...)
    • Similarly, back in the heyday of Marvel Comics' British arm, there were several crossovers between the Doctor Who Expanded Universe (or at least the DWM comics branch of it) and the Marvel Universe. The first and most notable was the Special Executive, a Time Travelling Ragtag Bunch of Misfits created by Alan Moore. Originally introduced in DWM as Ancient Gallifrey's Special Ops, they later appeared in Moore's Captain Britain, where they were mercenaries.
    • Marvel also linked Doctor Who with Transformers, by way of bounty hunter (sorry, "freelance peacekeeping agent") Death's Head. This is a borderline case, however, as the linkage only occurred when Death's Head fell through a dimensional rift from the Marvel UK Transformers universe and ran into the Doctor as a result.
      • In a more solid (possibly) example, the obscure character Octus has been stated to have a Dalek altmode. He was never seen transformed, but Word of God says that's what he turned into.
    • Gallifrey itself... or rather what was left of it... shows up in the Power Rangers Lost Galaxy episode Green Courage with Coordinates to boot, This aired in 1999, six years before the new series, by the way.
  • In Action Force #17, "Meditations in Red", Shang-Chi is revealed to have trained Quick Kick of Action Force, Lee Ho Ito, a different character than MacArthur S. Ito, Quick Kick of G.I. Joe. Action Force and Transformers UK cross over in "Ancient Relics!", and archaeologist Susan Hoffman appears in two later Transformers UK stories.
  • It appears that the soap opera Passions has set itself up as a sequel of sorts to the classic Fantastic Comedy Bewitched. It features Juliet Mills as Tabitha Lennox, a genuine witch whose daughter is named Endora and whose parents are a mortal named Darrin and a witch named Samantha. Furthermore, Bernard Fox has made two appearances on the show as his Bewitched character, Dr. Bombay.
  • The Power Rangers in Space encountered the five Turtles from TMNT: The Next Mutation... but, uh, we don't like to talk about the latter group around here (and neither do Eastman and Laird).
  • The Friends episode "The One With Two Parts" introduces Phoebe's twin sister Ursula, who was a character on Mad About You. Both had been played by Lisa Kudrow, so it was an obvious choice (to the network, at least) to make the previously unrelated characters twins. That same episode had Jamie and Fran from Mad mistake Phoebe for Ursula.
    • One episode of Mad About You itself revealed that Paul's old apartment was being loaned to Kramer from Seinfeld.
      • And later it was revealed that the series Mad About You exists in the Seinfeld universe. Maybe it's a reality show?
    • Another Mad About You episode had Carl Reiner guest star as Alan Brady, his character from The Dick Van Dyke Show. This created a bit of a paradox, because in an episode of Friends (which would seem to be in the same "universe") the characters are shown watching ''The Dick Van Dyke Show."
      • Not as much as you might think: The actual DvD show ended with Rob Petrie trying to find a buyer for his life story, and Alan Brady hinting that he might want to turn it into a show, which is so meta it hurts. So, it's possible that, in the fictional world where Rob, Laura, and Alan Brady live or lived alongside the Mad and Friends characters, Alan Brady eventually settled on Dick Van Dyke to play Rob Petrie — brain exploding must stop...
    • Also, Chandler briefly appeared in a Caroline in the City episode, and Caroline briefly appeared in a Friends episode.
    • Ross appeared in an episode of The Single Guy, playing an old schoolmate of Jonathan's.
    • Daphne and Niles of Frasier were on an episode of Caroline In The City, too, so that links Frasier (and, by extension, Cheers) into this little sitcom world, too.
      • And since Cheers linked itself to St. Elsewhere, that drags all of 1990s Must See TV into the autistic kid's dream.
    • Some people Fan Wank Greg House into the series as the passenger that tells Rachel off on her flight to England due to neither caring about the feelings of a nearby person and both being played by Hugh Laurie.
  • Early Edition crossed over onto Martial Law.
  • Martial Law also had a crossover with Walker, Texas Ranger. The first episode takes place on Martial Law and begins with the characters standing in their station discussing a recent crime. Then a voice rings out from off-screen, saying "I hear you could use some help." And then the camera shifts to a pair of cowboy boots and slowly pans up to reveal Ranger Cordell Walker, illuminated by a bare lightbulb overhead like some pagan godling. Then he and Sammo team up to stop violent, genocidal white supremacist militia members attempting to steal chemical weapons to use to ethnically cleanse Los Angeles. This is followed by an episode of Walker, Texas Ranger where Sammo visits Texas to help finish up the case. Sammo's extra-sensory and clairvoyant Chinese Daoist powers are accepted by the Rangers without a word of doubt. As Walker's long-suffering partner Trivette explains, "Around here, we call that sort of thing "Cherokee."
  • The Pretender had crossovers in paired episodes with The Profiler, and the relationship between the two characters was kept in the continuity.
  • Despite concepts seemingly custom-made for crossovers, JAG and NCIS only crossed over for one two-parter. Though NCIS didn't exist as a separate show when the crossover happened. In other words, a Poorly Disguised Pilot.
    • JAG's Lt. Bud Roberts did appear in the first season NCIS episode Hung Out to Dry.
    • Meanwhile, Lt. Cmdr. Faith Coleman and a Navy SEAL played by Adam Baldwin appeared on both series.
  • It's not quite Archie Meets The Punisher bizarre, but the special Alice two-parter that featured a visit from Boss Hogg, Roscoe and Enos from The Dukes of Hazzard (Boss Hogg was Not-Flo Joleene's cousin) is up there.
  • ITV drama series Footballers' Wives briefly exported popular character Tanya Turner to Bad Girls (also produced by ITV) when Tanya was jailed during the plot.
  • The creators of Lost and Heroes have discussed the possibility of intertwining their shows, but are largely unable to do so because they are on different networks. However, small details have crossed over. Characters on both shows have sported identical brochures for the fictitious Gannon Car Rentals.
    • Lost has also featured a few shoutouts to Alias, though it's unlikely they exist in the same universe due to Terry O'Quinn's characters in both shows being completely unrelated.
      • Actually, they do exist in the same universe, as a CIA agent is shown listening to one-hit wonderDrive Shaft, "You All Everybody", on his workstation. Ergo, Charlie Pace (played by Dominic Monaghan) is part of the Aliasverse, meaning LOST is part of it as well.
      • Likewise, an Oceanic Airlines flight to Sydney was mentioned in passing on Alias.
      • An Oceanic Airlines ad also appeared during the pilot episode of Flash Forward.
      • The disappearance of Oceanic Flight 815 was mentioned in passing on Fringe.
      • This could be because Oceanic Airlines is a generic name that a lot of shows use. The Other Wiki has details.
    • Also, the big "cork" on the bottle of evil at the end of the show pretty closely resembles a Hellmouth. Probably not intentional, but wouldn't it explain everything?
  • Speaking of Lost, one of Chef Robert Irvine's missions on Dinner: Impossible was to cook for the cast of Lost. Though it was clear to everyone that Lost is only a television show, Nestor Carbonell did appear in character as Richard Alpert and Robert was given several Dharma food drops to work with, so it qualifies somewhat for this trope.
  • In an episode of Reba involving a court, the judge is obviously intended to be Philip Banks from The Fresh Prince of Bel-Air, and is played by the same actor, despite Reba taking place in Houston and Fresh Prince taking place in California.
  • Crossing Jordan and Las Vegas crossed over so often that it probably doesn't even qualify as intercontinuity crossover. They certainly take place far enough apart geographically that it's plausible that they're within the same continuity. I think that the Crossing Jordan characters made one more appearance in Las Vegas after their own show had been canceled, though both shows are now finished.
    • In one LV episode, Mary made a reference to booking a conference room for Dunder-Mifflin, and Heroes and the 2008 Knight Rider series have both made references. Linderman being involved would certainly explain the Montecito's high owner turnover rate. Don't combine it with the Lost bit above, though, or your head might explode.
  • When a mentally ill patient filed a paternity suit against Dr. Kiley on Marcus Welby, M.D., the trial was resolved by Owen Marshall: Counselor at Law.
  • Picket Fences crossed over into Chicago Hope (both shows created/executive produced/written by David E. Kelly and airing on CBS), when Fyvish Finkel's character Douglas Wambaugh checked into the hospital. They also poked at ER featuring a "commercial" for the hospital that parodied the opening credits of ER and later having one character say, "We don't like to talk about that other hospital."
  • Because both series were produced by William Dozier, it was practically foreordained that The Green Hornet and Kato would make an appearance in Batman, which they did in the episodes "A Piece of the Action"/"Batman's Satisfaction", which aired on March 1 and 2, 1967, as well as an appearance in a brief "window gag" in another episode. The styles of the two shows didn't really mesh, however.
    • As for the styles of the shows not meshing, in the Hornet's "window gag" appearance (the earlier of the two appearances), Batman and Robin acknowledge his and Kato's status as heroes. In the later guest appearance, the episodes run with the standard "on police records a wanted criminal" plot device of the Green Hornet property, and entangle the Hornet/Kato and Batman/Robin in a Let's You and Him Fight standoff.
    • Later episodes would have Batman and Robin meet Colonel Klink from Hogan's Heroes or Lurch from The Addams Family. in the window gag.
  • USA Network does this on a regular basis in their ads. If you take, say, "Monk: A Tribute" as canon, Monk, Psych, Royal Pains, Law & Order: Criminal Intent, In Plain Sight, and Burn Notice all take place in one universe. Sooner or later, all of their major series end up there.
  • Disney took this to an extreme, theming two entire episodes specifically for the crossover: That's So Suite Life of Hannah Montana and Wizards On Deck with Hannah Montana.
    • They've taken it to an even further extreme and its most logical conclusion with practically every show on the network now existing in the same universe through a series of tie-ins or direct crossovers.
  • The Mythbusters appear in an episode of the original CSI (Vegas). From the way the segment is filmed its unclear whether they are intended to be fictional lab-techs, "themselves" visiting the lab, or a figment of Nick's imagination. However they later tested the same theory on Mythbusters, using clips from the CSI episode.
    • Speaking of CSI, that show once shared a rather odd crossover with the sitcom (and fellow CBS hit series) Two and a Half Men.
    • The franchise also crossed over with Cold Case and Without a Trace one time each. Some consider those two plus the three CSI series to be one big 'verse.
  • Fringe has a particularly interesting example of this trope. The Observer, or rather one of them, specifically September, whose task it is to police inter-dimensional travel and interferences with the timeline, has managed to crossover from the Fringe continuity... into the "real world". He appeared in the audience of American Idol and has been spotted in various stadiums during Fox sports broadcasts.
  • This one's a little older, but in an episode of The Jack Benny Program, Jack goes to court for supposedly murdering a rooster he owns. Who does he get as his lawyer? Perry Mason. Although it may not count officially, since it was All Just a Dream on Jack's part. Oh, and the true murderer? Perry Mason himself.
  • An episode of Warehouse 13 included Douglas Fargo of Eureka. An episode of Eureka included Claudia Donovan from Warehouse 13. This is an example of a Shared Universe, as both shows (as well as Alphas) are part of the "SyFy Verse".
  • R. Lee Ermey turned up in Season 1 Episode 4 of Pawn Stars in full Lock n' Load gear.
  • Ally McBeal and The Practice had a two-part crossover special that started on Ally McBeal on Fox and was resolved in the next hour on The Practice on ABC, with several characters from each show appearing on the other show. Both shows were produced by David E. Kelley.
  • Susan's niece was missing when her sister Chloe overdosed, and was found by the police in New York.
  • Comic Relief frequently features entirely non-canonical intercontinuity crossovers. Notable ones include:
    • 1997's Prime Cracker, in which Fitz and DCI Tennyson hook up and decide that now they have a relationship they don't care who the killer is.
    • 1997 also had BallykissDibley, in which Geraldine desperately tried to convince a visiting Father Peter that her parishioners were normal.
    • 2009's When Janet Met Michelle, which combined all BBC Three's sitcoms about twentysomethings, as the cast of Two Pints of Lager and a Packet of Crisps invited characters from Grownups and Coming of Age to their fundraiser party. The title refers to the characters played by Sheridan Smith in Two Pints and Grownups, who did indeed meet.
    • One between The Catherine Tate Show and Doctor Who (with a bit of Recursive Canon).
    • In 2013, a skit with the 1950s midwives from Call the Midwife inexplicably in a modern maternity ward got even more bizarre when the increasingly exasperated father called for a doctor, and the TARDIS materialised.
  • Similarly, 2010's Children in Need telethon included East Street, in which a bunch of characters from each soap arrive at the location of the other one, including Gail Platt and Denise Johnson competing to see who has the most tragic backstory. The cliffhanger ending was that Liz Macdonald is Kat Moon's mother, in a direct parody of the revelation that Kat is Zoe's mother. See also the Doctor Who entry above for an earlier Children in Need 'Stenders crossover.
  • Bryan Fuller likes to do this. Marianne Marie Beetle was a tenant of Jaye's trailer park in Wonderfalls, and then showed up at a competition in Pushing Daisies, despite the fact that Jaye's brother in Wonderfalls plays the main character, Ned, in Pushing Daisies, so they exist in the same universe, technically. And Jaye's mother is also Mother Superior in the second season of Pushing Daisies.
    • And Ned mentions the Happy Time Temp Agency by name, so Pushing Daisies and Dead Like Me exist in the same universe as Wonderfalls, which makes the Celebrity Paradox even more fun, because Jewel Staite plays a to-be-reaped record store employee in Dead Like Me, and then later played Jay's boyfriend's ex-wife in Wonderfalls.
    • Now Hannibal is part of the continuity. Gretchen Speck (she dropped the Horowitz in the divorce, apparently), from Wonderfalls, is in Hannibal, and played by the same actress. (And in Bryan Fuller fashion, Celebrity Paradox kicks in, because Caroline Dhavernas is in both.)
  • The Nick Verse includes several Dan Schneider productions like Zoey 101, iCarly, Victorious, Sam & Cat and Drake & Josh as the core of the Shared Universe. However:
  • Niecy and Hakeem from Moesha appeared together in an episode of Clueless after UPN picked up that series.
    • This became a trend when Niecy appeared on Girlfriends and Maya appeared on Moesha as the aunt of Dorian's stepsiblings.
      • The character Peaches from Girlfriends made an appearance on Eve. Taking all the connecting shows into account, Brandy has masqueraded as no less than four people in the UPN-verse: Moesha, herself, Chardonnay (The Game, spinoff of Girlfriends), and a mystery caller on Sabrina, the Teenage Witch (which crossed over with Clueless).
  • Angel: Illyria appeared in Fallen Angel: Reborn.

    Pinball 

    Professional Wrestling 
  • New Japan Pro Wrestling has Jushin Liger, Tiger Mask, and Black Tiger, all of whom were manga and or anime characters before NJPW licensed their likenesses and created wrestlers out of them. It makes sense for Tiger Mask and Black Tiger, as the anime they originate from was about wrestling in the first place, but Jushin Liger was created for a Henshin series that takes place Twenty Minutes into the Future about a holy warrior with the power of the liger (half-lion, half-tiger) who battles evil aliens bent on destroying the world. Makes sense.
  • A running gag in Mexican wrestling, though it's been seen elsewhere too. CMLL had the Thunder Cats as one of its trios, for instance.
  • When Hulk Hogan's first movie, No Holds Barred, hit theaters, the WWF thought it'd be a good idea to bring in the villain of the film, Zeus, to battle Hulk in a WWF ring. They were never really clear on whether this was supposed to be the movie character come to life, or the actor assuming the character's persona to wreak havoc (in some promos, he'd lean one way, in others, the other), but one thing was absolutely clear throughout the entire angle: it was Wrestle Crap.
  • RoboCop (yes, RoboCop!) appeared at WCW's Capital Combat 1990 to rescue Sting from a cage he was placed in by the Four Horsemen.
  • Chucky (the Creepy Doll from Child's Play) interrupted a Rick Steiner promo. Sadly, he didn't take up Rick's challenge to meet him in the ring.
  • In 2011, Ice Ribbon came under attack from Kaori Hoshi and Big Devil from the television drama Muscle Girls during the first anniversary of their one of their own shows, 19 O'Clock.
  • Jimi Mayhem, who has a Shogun Of Harlem, gimmick, actually interrupted a showing of The Last Dragon, which is where his gimmick comes from, in New York. From there, Vendetta Pro would actually host a contest between "Shonuff" and Bruce Leroy, the actual Bruce Leroy.

    Tabletop RPG 
  • Spelljammer fan campaign: Second Unhuman War as an extension of the Blood War — that is, between Elves corrupted and manipulated by Tanar'ri and Scro corrupted (if they need more) and manipulated by Baatezu.
  • Die, Vecna, Die was an intercontinuity adventure module, intertwining events in Greyhawk, Ravenloft, and Planescape.
    • Planescape, along with Spelljammer, had partly come to be to facilitate crossovers by connecting the various campaign settings — or, to put it another way, to render Die, Vecna, Die style campaign-setting crossovers into ordinary crossovers. On the other hand, Ravenloft was supposed to have a rather one-way connection to the rest of the multiverse (things could enter, but they couldn't leave), so something coming out of Ravenloft to have a crossover was rather unexpected...
  • Paranoia had one of these with Cyberpunk in 1989 with the adventure Alice Through the Mirrorshades. In true Paranoia fashion, every aspect of Cyberpunk was given a thorough mocking, from its gritty near-future setting to it's "style over substance" ethos to creator Mike Pondsmith himself.
  • Phil Masters's Mage: The Ascension setting Mage 2069: No Strings Attached, in which the Traditions destroyed The Computer and took control of the internet in 2025, and the Technocracy responded by downplaying the very idea of computers from the Consensus. By 2069 the Technocracy has won ... only the Void Engineers are still finding Umbrood in near space and the oceans. And the remains of the Sons of Ether keep creating mega-projects that Go Horribly Wrong, requiring an international rescue team of Iteration X agents to sort things out. And then there turns out to be something completely inimical to the Consensus on Mars. So the NWO - having long almost entirely abandoned the M.I.B. look - send their brightly-uniformed agents from a flying base to investigate. Astral Is Green...
  • On a not-very-similar note, Pyramid magazine once described a Mage: The Ascension scenario where a bunch of mages start using vulgar magic in the wake of a space station exploding, the Technocracy leaps on the "scientific" explanation secretly fed to them by the Traditions without noticing it opens cracks in the Consensus that would allow Sleepers to start manifesting "superpowers", and the next thing anyone knows, it's the Aberrant universe.

    Theme Parks 

    Toys 
  • Matt Trakker of M.A.S.K. re-emerged as an action figure in the G.I. Joe line, presumably because Kenner (M.A.S.K.'s manufacturer) merged with Hasbro (G.I. Joe's manufacturer) years ago.
    • SQUUEEEEEEEEEE-- Oh, excuse me!
    • G.I.Joe's original intercontinuity crossover character, WWF wrestler Sgt Slaughter.
    • Hasbro has also done G.I. Joe action figures for Rocky Balboa and William "The Refrigerator" Perry as team trainers.
    • And also G.I. Joe action figures for Street Fighter II. In fact, it was there when Ken got his last name, Masters, because they couldn't name an action figure "Ken" thanks to Barbie.
    • G.I. Joe and Transformers cross over in an unreleased Transformers: Generation 2 era transforming G.I. Joe Armored Personnel Carrier, an unreleased Baroness & Ravage statue, and the G.I. Joe and the Transformers San Diego Comic-Con exclusives, including the reappearance of Old Snake. The Transformers: Generations Combiner Wars Decepticon Viper transforms into a Cobra Rattler jet and has a combined Cobra/Decepticon insignia.
  • For a few years, Hasbro had a Transformers sub-line called Transformers Crossovers, including Star Wars and Marvel Comics characters. They are presented as the characters driving vehicles that transform into Humongous Mecha that look like they do, ranging from a Hulkbot turning into a tank to a moon-sized Darth Vader robot transforming to the Death Star. The Star Wars ones have an advantage in that they can use existing vehicles to turn into. The Marvel ones don't have existing vehicles (for the most part... but then again, try remembering the last time you saw Spider-Man's Spider-Mobile), but this is an advantage in its own way as they can be designed almost entirely around making the robot mode look right.
    • Before even those toys came along there was the Animorphs Transformers line, which unfortunately didn't do well, mainly due to Kibbles and Bits hitting the line hard; it also was tying in with the equally bad TV series at the time.
    • There's also the Disney Label ones, including "Mickey Prime" and a Bumblebee Donald Duck. Doesn't seem like these Disney crossovers will be coming to the US, though.
  • Sanrio once did a crossover with Care Bears in early 2014 in Japan called "Little Twin Stars X Care Bears". Complete with it's own exhibit and exclusive Care Bears and Little Twin Stars merchandise.

    Video Games 

    Web Comic 

    Web Original 

    Western Animation 

Alternative Title(s): Intercompany Crossover

http://tvtropes.org/pmwiki/pmwiki.php/Main/IntercontinuityCrossover