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:
Having a Cross Over
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
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"
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 Mc Duffie
, 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
For a fanfiction
equivalent, see Mega Crossover
and Rule 50
. (The map needs to add City of Villains
, but nobody's complaining really.)
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
, Fake Cross Over
. See also Vegas Crossover
, Fully Absorbed Finale
, Guest Fighter
, and Ultimate Showdown of Ultimate Destiny
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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.
- Super Milestone Wars and it's sequel, Super Milestone Wars 2
- Buffy the Vampire Slayer seems to be a bit of a crossover whore in fanfics. Crossovers include Halo, CSI, every Batman continuity, Stargate Verse, and plenty of others. A lot of the Halo crossovers are YAHFs ("Yet Another Halloween Fic", referencing the season 2 Halloween episode in which everyone got turned into their costumes) where Xander becomes John-117; these have an odd tendency to become Stargate SG-1 crossovers at the same time. There are even a couple Animorphs crossovers, despite Buffy being referenced as fictional in the Animorphs books. Merlin naturally has some, due to Anthony Head playing main roles in both series.
- The online Fan Film Haloid, a truly impressive Halo/Metroid crossover. Technically, also a Dead or Alive crossover.
- Anything by Ten-faced Paladin that isn't an Alternate Universe Fic is a crossover (sadly, a couple of them are Dead).
- There is actually a rather good one between Avatar: The Last Airbender and Harry Potter. here. He rationalizes the events as an influence for Zuko's Heel-Face Turn, and Malfoy's hesitation. And it's actually partially believable as well.
- There's a Sonic the Hedgehog/Mighty Ducks crossover (no, seriously) here which definitely qualifies, while also doubling as an Original Flavour story.
- There's a Harry Potter/The Princess Bride fanfic which features Harry as Inigo, Hermione as Buttercup, and Dumbledore as the omniscient dream narrator who breaks the fourth wall repeatedly.
- The epic Star Wars/Star Trek crossover fic Unity. For the record neither side really "wins," and for the whole second half the main character is the son of one Wars and one Trek character.
- ''Trek Wars: The Furry Conflict'' not only has one of the worst names in fiction, but is also one of the best and longest running Star Wars vs. Star Trek crossovers out there, having been started in 1996 and continuing to this day. Several things set TFC apart from the rest are that (a) all the characters are furries with few exceptions, (b) the ST universe turned out a lot better then canon while the SW universe took a decided turn for the worse, (c) the whole script is played out in a roleplay then transcribed to the net, and (d) none of the main characters from either franchise get more then a passing mention. In other words: it's a self-described Dramatic Parody that does a fairly good job of meshing the two universes, thanks to a big fat Negative Space Wedgie. It even has it's own wiki!
- An early Star Trek fanfic (created after Season 2) crossed over with The Muppet Show with the excuse that Doctor Bob (Rowlf) was the ship's new doctor. Read the resulting hilarity here.
- The fanfic The Chronicles of the Nine Kingdoms is essentially all the Nintendo Worlds (with a few other worlds that have appeared on Nintendo systems, like Dragon Warrior Monsters) crossed over together with the Mario world as a centerpiece for a quest against evil. The author even takes it farther by planning to cross his fanfic with a Metroid fanfiction written by his friend.
- Fuku Fic — Ranma ½-Sailor Moon crossovers are so common they merit their own trope.
- Both Syllables is a fairly well-known crossover between Invader Zim, Buzz Lightyear of Star Command, and Lilo & Stitch: The Series.
- An online fanfic crossover between Star Trek: The Next Generation and Babylon 5 contained a scene where Data tells Captain Picard that "techobabble will not work in this Universe, Captain. We are stuck with obeying the laws of Physics."
- There's been a few Zero no Tsukaima stories on fanfiction.net where Louise instead summons a different familiar from another series. So far we've had Edward Elric from Fullmetal Alchemist, Chrono Harlaown from Magical Girl Lyrical Nanoha and Grimlock from Transformers Generation 1.
- Since they are both looking for the Philosopher's Stone, there are a number of fanfics where Harry Potter and Edward Elric meet.
- There is an obscure X-Files and MST3k fanfic called The Project (link leads to a MST-ing of the fanfic). While the plot is rather generic for an X-Files fanfic, the real charm of it comes from the fact that the author seems to have seen about five minutes of MST3k, leading to Joel being emo, having people die from watching bad movies and Dr. Forrester Took a Level in Badass and kills Joel; it's absolutely hilarious.
- A less serious take on the concept is S.O.L., which at least has less OOC on the MST3K side (The author even mentions The Project in their note).
- TypeMoon vs. Godzilla. Really. It's a fanfic Novel that may be in Japanese, but the art created for it is enough to tantalize everyone.
- The Doctor and the Enterprise, a Crossover Fan Fic that predates the Internet, was eventually published with the Star Trek and Doctor Who serial numbers filed off.
- The Sin City and Batman fanfic called A Dark Knight Over Sin City.
- A surprising number of Harry Potter and YuYu Hakusho crossovers are floating around on the Internet. The plot usually has the Yu Yu Hakusho cast infiltrate Hogwarts (with The Best Defense probably being the best one, and likely something of a precursor to the rest).
- Suikoden Fantasy, a crossover of Final Fantasy VI and Suikoden III.
- Kitsune on Campus manages to place Naruto in the Mahou Sensei Negima! universe.
- Goku/Anne Frank: Until the End of Time. If the notion of a Dragon Ball Z/Anne Frank crossover hasn't made your brain implode already, wait until you get to the part where Hitler becomes a Super Saiyan.
- When Wario Met Mrs. Cartman, which is, well, about Wario meeting Cartman's mom. It's also a brain-melting Mega Crossover.
- Heero Potter, where Heero Yuy is Harry's son, Duo Maxwell is Duo Weasley, Trowa Barton is Trowa Weasley, and Quatre Raberba Winner is Quatre Malfoy. I never knew the After Colony years started sometime soon after Harry Potter allegedly ended.
- Because of the popularity of a background character "Dr Hoof/Whooves", there are a swarm of crossovers between Doctor Who and My Little Pony: Friendship Is Magic. It is even the case that many fics that aren't an actual crossover will have the Doctor as a side character and more or less explicitly make clear that yes, he is the time-travelling alien beloved by fans; he just regenerated as a pony.
- In fact, due to the popularity of Friendship is Magic, and very prolific fanfic writers, My Little Pony: Friendship is Magic has crossed over with just about everything, from The Dresden Files to Stargate SG-1.
- Stars Above, a crossover between Lucky Star and Puella Magi Madoka Magica.
- Battlestar Galactica (Reimagined) and Battletech crossovers have a bit of popularity due to the similarity of their FTL systems.
- "Connecting the Dots.", an intercontinuity crossover between the Justice League and Naruto, along with a few thousand random cultural references. Think Superman fighting Naruto.
- Law and Bubbles, probably the only time you'll see The Powerpuff Girls meets Law & Order.
- Highlander attracts a lot of crossovers as well, mostly because there are many characters that it's easy to make immortals. Stargate SG-1 occasionally gets pulled in because of Peter Wingfield guest starring on SG-1. It also has been crossed with Buffy the Vampire Slayer due to both series having groups of Watchers.
- Animorphs is another series that's something of a crossover magnet because it's very easy to work in people who are controllers. It's been crossed with CSI, and Maximum Ride is a frequent crossover because of similarities between The Flock and Tobias. Buffy the Vampire Slayer and Roswell were both crossed with it despite both shows being referenced as fiction in the books.
- Several arcs of You Got HaruhiRolled! feature characters from other series interacting with the Haruhi Suzumiya characters. The pirate arc has, as its villains, the main characters of Lucky Star. Chapter 86 has a story in which Batman and the Joker fight it out at a baseball game Haruhi attends. But it is the court case arc which goes Up to Eleven, operating with the conceit that all characters from every work of fiction ever live together in a single city, thus allowing for a Mega Crossover where characters from countless fandoms take part in Haruhi's trial in one way or another.
- The Starlight Series attempts to seamlessly weave the Lilo & Stitch universe with Star Trek (in Starlight and Aftermath) and Cardcaptors (in A Trip To Japan). The former pits the gang up against the Borg.
- "Remembrance of the Fallen" is a crossover between two separate Star Trek Online fan work continuities: StarSword's Bait and Switch and the Shared Universe The War Of The Masters.
- 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.
- The officially published Star Trek: The Original Series tie-in novel Ishmael by Barbara Hambly is an extended crossover with the 1968-1970 ABC series Here Come The Brides, including several Mythology Gags spanning both series and a number of Shout Outs. Additionally, it features additional crossover elements from Have Gun — Will Travel, Doctor Who, Star Wars, Battlestar Galactica (Classic), Bonanza, and Maverick, making it also a Mega Crossover.
- A crossover introduced the crew of the USS Enterprise NCC-1701 to the X-Men:
(On encountering Gladiator in deep space)
Kirk: Did he just punch my ship?
Scotty: Aye, Captain. And he di' damage the shields a bit.
- And also
Doctor McCoy?! Beast and Bones: Yes?
- Diane Duane is a Doctor Who fan, and as a result the Doctor (in different incarnations) has appeared in both her Young Wizards series and in one of her Star Trek novels.
- Neil Gaiman won a Hugo Award for A Study in Emerald, his crossover between Sherlock Holmes and the Cthulhu Mythos. Deservedly — the story is awesome. It can be read here for free, in nifty newsprint format. Do so now.
- The basic concept of the Thursday Next books is that all novels are connected through the Bookworld, and Thursday can travel to them. For obvious reasons, the books Thursday enters are mostly public domain, but the cast of Enid Blyton's Shadow The Sheepdog, Beatrix Potter's Mrs Tiggywinkle and Kathy Reichs' Temperance Brennan have all appeared with permission. (Of the estates in the first two cases, obviously.)
- The Doctor Who character Iris Wildthyme (see here for character tropes) started out in a wildly unrelated series of non-genre novels. The author proceeded to use her in Doctor Who novels with no change whatsoever to her character. She then got her own Big Finish spinoff and a number of appearances in the comics. Unlike with other not-quite-canon Doctor Who companions, Big Finish makes no effort to prevent a Continuity Snarl with her, and Iris somehow being part of several different continuities all at once is considered part of her charm.
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.
- 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).
- On the other side of the Pacific, the world of the Samurai Sentai Shinkenger had an unexpected visitor in Kamen Rider Decade. The crossover is in continuity for both shows; in fact, the fact that the Shinkenger world is the only world in Decade that is the genuine, canonical universe of the show in question rather than an Alternate Universe (original worlds aside) is a plot point for the arc. note
- Ultraman vs. Kamen Rider is actually more of a team-up special than a fight with the protagonists being portrayed by Fake Shemps, but still awesome.
- Super Hero Wars: Kamen Rider vs. Super Sentai brings together 240 heroes across both franchises, and once again Decade is involved.
- Kamen Rider Gaim had a canonical, hour-long crossover with Ressha Sentai Tokkyuger. Unlike the previous examples, which were usually regulated to movies, this one actually aired on television as part of the series proper. Gaim was also involved in a later crossover with Kikaider.
- 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.
- Early Edition also featured several regular characters from Chicago Hope in one episode.
- 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.
- 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.
- 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 ThunderCats 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.
- 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 Leeroy, the actual Bruce Leeroy.
- 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 inimicable to the Consensus on Mars. So the NWO - having long 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 Technomancy 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.
- 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.
- 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.
- 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.
- Garry's Mod allows you to do all kinds of crossovers with the right mods. Want John-117 to team up with Gordon Freeman and fight Saren? Have fun.
- Mario & Sonic at the Olympic Games featured the first meeting of Mario and Sonic the Hedgehog. Since the pair were the mascots of former warring console makers Nintendo and Sega (respectively), this was something of a big deal for old-school gamers.
- Super Smash Bros. which features all of the first- and second-party Nintendo characters fighting, From Mario, to Link, to the Pokemon. And even some not from Nintendo, such as Sonic and Snake, Mega Man and Pac-Man.
- Mario Hoops 3-on-3 and Mario Sports Mix add Final Fantasy characters to the traditional cast of Mario sports games.
- The Fortune Street series eventually added Dragon Quest characters to the game. Sony installments of the series crossed them over with Final Fantasy characters, while the Wii and DS installments mixed them up with the Super Mario Bros. cast.
- Two games by Shounen Jump were made that put up some of their high-end mascots up against each other in the same vein as Super Smash Bros. The most popular and most varied is the Jump Super Stars game on the Nintendo DS. On the Gamecube, focusing on its most successful series, is Battle Stadium DON, with DON being an acronym for Dragon Ball, One Piece, and Naruto.
- Wario Blast: Featuring Bomberman! which is what the title says. (Except in Japan, where it was GB Bomberman and had nothing to do with Wario.)
- The Gilliam Yaeger who is the final boss of the Super Famicom game Hero Senki, and who appears in the Super Robot Wars initial continuity, and the Original Generation continuity are all the same character.
- For that matters, the Super Robot Wars series itself is built on the idea of Mazinger Z and Shinji Ikari teaming up to beat up Char Aznable.
- Also notable in Super Robot Wars OG Saga: Endless Frontier, Reji and Xiaomu from Namco X Capcom confirm that KOS-MOS from Xenosaga comes from their future (which was already established in the former's game).
- Mortal Kombat vs. DC Universe. And in Mortal Kombat 9 DLC, vs Freddy Krueger. The PS3 version had Kratos from God of War as a Guest Fighter.
- Though it's technically one series, each of the Final Fantasy games has its own world and continuity, which means Gilgamesh's appearances in various games (it's hinted he's the same character, moving through the alternate universes) count.
- And then there's Final Fantasy Tactics, where you can send out other characters on jobs, and they may return having found the Big Bad's palace from Final Fantasy II, or the phantom train from Final Fantasy VI, or the fake Excalibur from Final Fantasy V.
- The sidequest to get Cloud in your party. The PSP port of Tactics also included Balthier from Final Fantasy XII and Luso from Final Fantasy Tactics A2. In the case of Cloud too, it's suggested that his stint in Ivalice occurs when he fell into the lifestream, hinting that it's the actual Cloud from Final Fantasy VII. Less so with Balthier and Luso, who are more or less there with no explanation. Lampshaded by Balthier himself even, who mentions that his role in the game... "feels more like a cameo role".
- DJ Atomica, the (some would say) annoying announcer in Burnout Paradise, is the same guy who provided the commentary for SSX 3. In Paradise, he makes reference to SSX several times, suggesting it's supposed to be the same character.
- A couple of Yes! Pretty Cure 5GoGo! video games have incorporated characters from the previous universes. The story implications of the iDOLM@STER knockoff are probably not significant, but the DS game has a plot suggesting they all share a universe and simply never ran into each other before (which does happen in the Pretty Cure All Stars DX movie).
- Super Puzzle Fighter II Turbo has characters from Street Fighter, Darkstalkers, and Cyberbots. There's only one character from the latter, though.
- Capcom's "Vs. series" started life as such with X-Men vs. Street Fighter and Marvel Super Heroes vs. Street Fighter before stepping into Massive Multiplayer Crossover territory; it hasn't looked back since.
- Shin Megami Tensei III: Nocturne features a guest appearance by Dante from Devil May Cry. In exchange for this being done, series demon artist Kazuma Kaneko designed the Devil Trigger forms of the Sons of Sparda in Devil May Cry 3.
- One of the boons from finishing an Escape Velocity: Nova storyline is access to one of two known (very expensive) ships "found floating near a wormhole at the farthest end of known space". Scientists "theorize that these mystery ships somehow entered our galaxy from a parallel dimension." The ship is from the original Escape Velocity game, which has practically identical (albeit less developed) gameplay but a completely different universe.
- One of the earliest intercompany video game crossovers was Battletoads & Double Dragon: The Ultimate Team, a crossover between Rare's Battletoads and Technos Japan's Double Dragon franchises (natch) released in 1993 for various platforms. This was made possible by the fact that Tradewest published both series in America and Europe, although the game itself was really more of a Battletoads game with Double Dragon characters as guest stars ( some which were misnamed in the game).
- Kingdom Hearts is a crossover between Disney and Final Fantasy.
- "Disney" seems a bit unspecific, but that's because it's pretty much everything Disney owns.
- As of Dream Drop Distance, characters from The World Ends with You are showing up, so now it's "anything Disney and potentially anything Square-Enix owns".
- My World, My Way features two characters, the mysterious dungeon diggers Owen and Kate, who were the protagonists of a previous Atlus/Global A game entitled Master of the Monster Lair. Owen even carries around the magic shovel that he had in Monster Lair, and the dungeon layouts are similar in both games.
- So far, Link, Heihachi, Spawn, Kratos, Ezio Auditore, Darth Vader and Yoda, and Starkiller have all appeared in the Soul Series.
- Poker Night at the Inventory features Tycho Brahe, Max, Heavy Weapons Guy, and Strong Bad, from Penny Arcade, Sam & Max: Freelance Police, Team Fortress 2, and Homestar Runner, respectively, all playing poker together, plus an assortment of characters milling around the background.
- Although it's all from the same company, this schtick is a favorite of Nippon Ichi. Characters tend to show up in each other's games with reckless abandon, ranging from minor cameos to secret characters to actual plot-relevance. Laharl ends up in a bottle in Phantom Brave and chews out Revya in Soul Nomad & the World Eaters for trying to take his title. Etna is a central secondary character in Disgaea 2. Lujei (from GrimGrimoire) is responsible for Endorph (who is really Walnut from Phantom Brave) appearing in Soul Nomad. Everyone of any importance shows up in Disgaea 3 as downloadable content. And to top it off, you have Asagi, the wandering protagonist without a game of her own, trying to usurp the hero role in almost every game.
- Interesting crossover here, in Devil May Cry. Dante receives the sword named Alastor, imbued with an electrical motif. Later on in Viewtiful Joe, a character named Alastor appears, complete with the electrical motif. The connection is later made in the PS2 port of Viewtiful Joe in which Dante guest stars and Alastor (revealed to be the spirit of Dante's sword) harbors some unfriendly feelings towards Dante (for leaving him behind in Devil May Cry 2).
- After this, the connection is pushed forward in Tatsunoko vs. Capcom in which Morrigan's win quote vs. Viewtiful Joe mentions that she was disappointed in him after talking to Alastor. Leading to an implication that Darkstalkers, Devil May Cry, and Viewtiful Joe are all part of the same universe.
- Done again in Marvel vs. Capcom 3, where Dante and Joe's unique intro quotes for each other show the two to be friendly acquaintances. This would be odd, as Dante never actually ran into Joe in his Viewtiful Joe story, but he was playable in the PSP version of Viewtiful Joe: Red Hot Rumble.
- Bayonetta, another Shinji Mikami creation, drops numerous hints that it exists in the same world as Devil May Cry. This is particularly done through the use of Enzo, who has the same name and personality traits of an information broker who was pals with Dante and mentioned as early as the instruction manual for Devil May Cry, but the lore for one of the unlockable accessories, the Bracelet of Time (which is visually similar and functionally identical to the Bangle of Time from DMC1 note ), notes that it was created by Eva (Dante's Missing Mom), "a truly extraordinary [Umbra] witch" who "entered into contract with a legendary dark knight" (i.e. her husband Sparda). Additionally, Luka's father is a world-famous journalist well versed in the supernatural who goes by the name Antonio Redgrave. Dante's preferred alias in the DMC1 novel and The Animated Series? Tony Redgrave. When asked about the connection, Kamiya answered on his Twitter account that Dante respected Antonio and his work, so took the name during his early days as a demon hunter. Luka also name drops Claire, Trish, Silvia, and Ammy as girls he's dated in the past, but that's presumably a fun little nod to Kamiya's past works.
- Free Flash game crossover: In Shift 3 you can unlock Fancy Pants Man as a Secret Character.
- Metal Gear Solid 3: Snake Eater featured a bonus minigame where Solid Snake is assigned capture a bunch of escaped monkeys from the Ape Escape series. In turn, Ape Escape 3 featured a bonus mini-game where the player controls a monkey named Pipo Snake who must rescue Solid Snake.
- Via "Fall of the Space Core, Volume 1", a mod collaboration for The Elder Scrolls V: Skyrim between Valve and Bethesda, the Space Core from Portal 2 crash-lands near Whiterun and gets picked up by the Dovahkiin. No word on where Wheatley ended up.
- Or as Valve put it, a patch to put Nolan North in Skyrim.
- Pokémon Conquest is this. It's Pokémon combined with the Nobunaga's Ambition franchise.
- Reality On The Norm, a Shared Universe Round Robin series, has had some games about character from other games entering the city of Reality, such as Commander Keen or Monty Mole. Then there's Shadows of RON, whose developer actually included the character from his own book series as the protagonist.
- More interesting hints at Capcom's IPs existing in the same universe: in the first Dino Crisis, certain crates can been seen sporting the Umbrella Corporation logo. The game's setting (the Borginian Republic) in reused in the Ace Attorney series (as the Republic of Borginia). And speaking of Resident Evil, many RE4 players remember a dog in a bear trap encountered early in the game that, if rescued, will come to your aid during the El Gigante boss fight. That dog is Hewie of fellow Capcom horror title Haunting Ground. Additionally, Tricell's emblem can be seen on billboards in Ascension City from the 2009 Bionic Commando sequel. Throw in the explicit fact that Street Fighter, Final Fight, Saturday Night Slam Masters, Captain Commando, and (maybe) Rival Schools are part of a singular timeline, some possible inter-series cameos in Ken's Street Fighter Alpha 2 stage, and the suggestion from Namco X Capcom that the various series are part of one greater world merely separated by time and space, and the implication is that these series all share some degree of cohesive continuity but Capcom doesn't really bother to go further in-depth outside of the Vs. series (and sometimes not even then).
- This is the entire premise of Warriors Orochi, being a crossover between Samurai Warriors and Dynasty Warriors. Though, that hasn't stopped them from adding guests from other titles, including Dead or Alive, Ninja Gaiden and even Soul Calibur.
- The sequel to Transformers: Fall of Cybertron, Rise of the Dark Spark, crosses over the War for Cybertron universe with Michael Bay's live-action universe, during the events of Transformers: Age of Extinction.
- The Crossoverlord. (Yes, that's the name of the comic and the no space is intentional.)
- Unwinder of Unwinders Tall Comics adopted Marmaduke. Then, in the Watchmen parody comic, the big dog dies à la Jon Osterman. According to the author, "It's not Tall Comics canon, but it IS Marmaduke canon."
- In a guest strip for PvP, Kris Straub proposed that his comic Starslip takes place in the same universe, just thousands of years later, and his characters are descendants of those in PvP. Scott Kurtz said it's canon, though maybe he was joking.
- Cross Time Cafe: Characters from at least five different webcomics are regular cast members - though half the cast appears more here than in their own comics (the main exceptions being Florence, Jack and Jenny.
- Something Positive is practically some sort of Massive Multiplayer Crossover nexus of webcomics. (See that article for more.)
- The Cartoon Chronicles Of Conroy Cat has the story take place in Cartoon Land, and has cartoon characters from different series making appearances.''
- Powerpuff Girls Doujinshi starts with The Powerpuff Girls and Dexter's Laboratory, but also brings in Justice League, Men In Black, Megas XLR..and well pretty any series that catches Bleedman's fancy.
- A storyline running through both Kevin & Kell and General Protection Fault had Nick and Ki "crossing over" to Domain.
- Hello Cthulhu
- Star Wreck: In The Pirkinning, a Finnish Babylon 5/Star Trek crossover movie that took seven years to make. So good, it's apparently the most-watched Finnish film, and Universal Studios are distributing an updated version.
- How It Should Have Ended gives their take on how the Terminator series should end. With an unexpected crossover.
- I'm a Marvel... and I'm a DC has Marvel and DC characters (and occasionally characters from other continuities, such as Hellboy) arguing with each other about whose comics and movies are best. Then there's the "After Hours" series which has actual storylines involving characters from both continuities, in the same vein as the official Marvel/DC crossovers.
- Ghost Nappa has been in a duel, Atlantis and Lanipator and Kaiser Neko's hotel room.
- And seeing as he had a Poke Ball prior to his death, perhaps he also, at some point, visited another continuity.
- He's also been spotted in Death City.
- There was a competition between most of the major Fantasy series - based on popular opinion, not on what makes any sense. For example, The Dragon Reborn, Harry Dresden, Kovthe all lost to muggles. Each one had a written description of the battle - and despite the implausibility, it was awesome.
- Dead Fantasy, a Machinima series which pits Dead or Alive heroines and Final Fantasy heroines against each other. And it is glorious.
- Code MENT and None Piece cross over in episode 14.5/6. It's even more incoherent than usual.
- According to the special The Grim Adventures of the Kids Next Door, The Grim Adventures of Billy & Mandy, Codename: Kids Next Door, Ed, Edd n Eddy, and The Powerpuff Girls all take place in the same universe.
- Since Dexter, Boy Genius has been sighted in Townsville, we can add his show to this list as well.
- Transformers and G.I. Joe have a long history of crossovers, which includes Inhumanoids and Jem through the shared character of sensationalist TV reporter Hector Ramirez (a Geraldo Rivera parody). The original comic books had a special crossover miniseries, and recent comics have revisited the crossover in various ways. The eighties cartoons, meanwhile, shared a reality: in the futuristic third season of Transformers, major character Marissa Faireborn was the daughter of G.I. Joe character Flint, and one episode featured a washed-up Cobra Commander doing business under the pseudonym "Old Snake." Inhumanoids also implied that one member of the Earth Corps, Sabre Jet, was previously Ace of G.I. Joe (both of them had the name Brad J. Armbruster).
- Nickelodeon's shows The Fairly OddParents and The Adventures of Jimmy Neutron: Boy Genius had three cross-over Made For TV Movies: "The Jimmy Timmy Power Hour", "Jimmy-Timmy II: When Nerds Collide", and "Jimmy-Timmy III: Jerkinators". Also Rugrats Go Wild!
- Disney Channel took this to another extreme with Lilo & Stitch: The Series, doing several specials that crossed it over with a bunch of the other shows on Disney Channel. This fits with the movie's initial marketing push, showing Stitch crossing over with various Disney movies, wrecking the place, and being told to get his own movie.
- And, as a result, aliens are now canon in Recess and The Proud Family... Which seems kinda odd, considering how relatively realistic their premises were. Though it does somewhat fit with The Proud Family's usual weirdness. Penny's great-aunt canonically has telekinetic powers.
- And the fact that, by extension, American Dragon Jake Long is set in the same universe as Lilo & Stitch, Kim Possible, and Recess has lots of strange implications...
- It's very confusing with Recess, as it's made explicitly clear in the series that it takes place over the course of the Fall of 1997 until the Summer of 1998 (and then Fall 1998 for Recess: Taking the Fifth Grade), even for the episodes made in the 2000s (this is firmly established in Recess: School's Out)
- Made even worse when you realize that Lilo and Stitch were originally from the Disney Animated Canon, which means that all of the Disney Channel cartoons take place in the same universe as all of the Disney animated features... EEK!
- In one episode of Duck Dodgers, Dodgers gets his dry cleaning mixed up with Hal Jordan's and ends up as the newest Green Lantern when he finds the power ring in Jordan's uniform pocket.
- The episode name, for the curious, is The Green Loontern. And in another episode (Samurai Quack) Dodgers takes the place of Samurai Jack. Complete with Achoo, voiced by Mako himself.
- The Simpsons
- Greg Weisman has written a Gargoyles/ Spectacular Spider-Man crossover radio play, although it is unofficial and non-canon.
- There were also plans to do a crossover when it seemed there would be a series version of Atlantis The Lost Empire, called Team Atlantis. Set in the '20's, it would have involved the Atlantis cast getting involved in a battle between Demona and a former Hunter.
- However, that hunter has reappeared in the comics, and Demona was seen grabbing something out of the remains of the Praying Gargoyle an Atlantean crystal.
- In an ad for Metalocalypse, Eddie Riggs apparently served a stint as a roadie for Dethklok.
- The Mask and Ace Ventura met for two episodes that could have been awesome. Both shows kept their respective styles of animation in each other's universe (Ace & Spike, for example, kept their more cartoony look in the Mask's more realistic world and vice versa).
- Due to both characters being from Man of Action Studios to begin with, Generator Rex had a special episode named Ben 10 Generator Rex Heroes United, involving Rex meeting Ben Tennyson (the Ultimate Alien incarnation). A rare canon example, as it reveals more about Rex's backstory and provided Ben with a new alien form that actually made it to the next sequel series.
- Freakazoid! gave us this little scene.
- Also, the Warners had a brief cameo in the segment "Freakazoid And Friends".
- Scooby Doo Wrestlemania Mystery. While Scooby and the gang have teamed up with celebrities before, this is the first time Kane has chokeslammed Shaggy.
- In the Rick and Morty episode "Close Rick-Counters of the Rick Kind" when the alternate Ricks arrive in the dodo dimension a pen, a notepad and a coffee mug fly out of one of the decoy portals Rick made. The same pen, notepad and coffee mug that get sucked into Grunkle Stan's portal in the Gravity Falls episode "Society of the Blind Eye".