Character Overlap

Characters in one series crossover to another series. A technique used to help define a 'Verse.


Examples:

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    Anime & Manga 
  • Characters from The Day of Revolution and Family Complex have roles of varying sizes in Princess Princess. All three are written by Mikiyo Tsuda.
  • Angel Links employees Valeria Vertone and Duuz Delax Rex appear in an episode of Outlaw Star. Similarly, Fred Luo, Clyde, and Iris all appear at various points in Angel Links.
  • Nasuverse. See below under Video Games.
  • The Raildex. Characters in A Certain Magical Index, A Certain Scientific Railgun, and A Certain Scientific Accelerator cross over frequently since most of the action takes place in Academy City.
  • Anything by CLAMP will have this. Tsubasa Reservoir Chronicle took this idea and went Up to Eleven.
    • Prior to Tsubasa the title characters of CLAMP School Detectives were probably the worst offenders. Two of them were also the lead characters of separate series (though one only lasted a single issue) and the third was a supporting character in Duklyon: CLAMP School Defenders. And this is before they put in a brief appearance in X1999.
  • Isaac and Miria, lovable robbers from Baccano!, make cameos as members of the Dollars in Durarara!!. Since they're immortal, having them be in Durarara's time period is easy.
  • Ken Akamatsu reused the one-shot character Mei from Love Hina in Mahou Sensei Negima!.
  • Eiji Ohtsuka's manga MPD Psycho and The Kurosagi Corpse Delivery Service both have a cop named Sasayama as a secondary character. Ohtsuka has confirmed that they are the same person and not just two people with a coincidental similarity of name.
  • Fruits Basket creator Natsuki Takaya specifically mentioned that one of her post-Fruba series would have minor cameos from some of the Fruba cast, just to make it clear they're set in the same universe.
  • The anime adaptation of Air contains a brief cameo of three of the primary girls from Kanon. Amusingly, both the Japanese and English dubs kept vocal continuity between the cameo and the show proper. Note that this cameo does not happen in the original visual novel.
  • Since most of Fujio Akatsuka's works take place in and around Akatsuka Ward, characters from his series would pop in and out of each others' stories every once in a while. While Osomatsu-kun's Matsuno brothers and Iyami were frequent targets of this, characters from Tensai Bakabon and Moretsu Ataro often made brief cameos as well.
    • The 1988 Osomatsu-kun series was this in spades, with characters like Bakabon's Policeman and Ataro's Nyarome being cast mainstays.

    Comic Books 
  • This is what helped define the official Marvel and DC Universes back in the 50s and 60s.
  • Obscure 1980s black-and-white comic Tales from the Aniverse featured a cat bounty hunter named Miss Chevious. Cartoonist Randy Zimmerman carried the character over into her own series, which runs in Flint Comix & Entertianment over 20 years later.
  • Buffy the Vampire Slayer:

    Fan Works 
  • Zany To The Max has at least one crossover per season. All the crossovers are in this style (either the Warners enter into the other series, or characters from the other series enter the Animaniacs world).
    • Played for laughs in a parody of Monsters, Inc. when Sekoila searches for a cat who has entered the Animaniacs world and misunderstands the Warners when they keep telling her about "South Dakota" (which happens to be the name of the cat).
    Yakko: Excuse me, Sekoila, but have you seen South Dakota?
    Sekoila: No, I haven't, Yakko. I've never even been there!
    • Interestingly, the Monsters, Inc. parody is in the third season, which consists of entirely crossover episodes!
  • While it's all fanfiction, Jake Englishs Mysterious Theater Of Scientific Romance From The Year 3000 has guest stars from Dinosaur Comics, Final Fantasy XIII-2, The DCU, That Guy with the Glasses, My Little Pony: Friendship Is Magic and Pokémon. There's also an OC inspired by Cordless, and a Nasuverse OC.
    • This is very common in MSTs featuring an original team rather than the original Mystery Science Theater 3000 team. Members of the crew can and do come from virtually any medium. For more examples, see the Refia forum.
  • Red Fire, Red Planet and Bait and Switch overlap some characters with both each other and with the Star Trek canon.
    • Ba'woV, chief engineer of the IKS mupwI' in RFRP, is stated to have been an engineer on a freighter called the Shargrash when she first met her current husband Brokosh, a Lethean mercenary now in the employ of the Klingon Defense Force. The Shargrash was the freighter that the USS Bajor rescued from some Jem'Hadar in chapter five of B&S.
    • Ensign Kate McMillan, a Mauve Shirt on the USS Bajor in B&S, is one of the viewpoint characters of RFRP.
    • Will Riker and Deanna Troi from Star Trek: The Next Generation also appear. Will is now a fleet admiral working at Starfleet Command, while Deanna is the head of the Diplomatic Corps. She doesn't get any lines because she's still asleep in her only scene (it being three in the morning in San Francisco when Will was called in due to an imminent Klingon attack on Sol).
  • Superwomen of Eva 2: Lone Heir of Krypton: This story's Asuka — who is Power Girl and later Supergirl — has showed up in other stories of the same author. Similarly, original characters — and versions of the canon ones — of his other stories have showed up in this, creating a Broad Strokes Shared Universe.

    Films — Live-Action 
  • Jay and Silent Bob famously reappear in all six View Askewniverse films — and also pop up in Scream 3. And some characters from different films are actually related to each other.
  • Han from The Fast and the Furious films is also the very same Han from Better Luck Tomorrow according to Justin Lin.
  • In the first live-action Transformers movie directed by Michael Bay, Travis Van Winkle plays a Jerk Jock named Trent DeMarco. The 2009 reboot of Friday the 13th, also produced by Michael Bay, has Travis Van Winkle play a Jerk Jock named Trent DeMarco. According to Word of God, they're the same character.
  • Like the comics its based on, the Marvel Cinematic Universe has several overlapping characters. Many of these are Early-Bird Cameo teases for later films. Not counting minor cameos, or the Avengers movies (and Captain America: Civil War) that have crossing over as a main selling point:
    • Nearly every movie in Phase One has an appearance by either Nick Fury or Agent Coulson. The exception is The Incredible Hulk, where Tony Stark represents S.H.I.E.L.D. in their place.
    • Black Widow first debuts as a supporting character in Iron Man 2, then later becomes a supporting character in Captain America: The Winter Soldier. Minor character Senator Stern also appears in both films.
    • Howard Stark, introduced in the Iron Man films as Tony's late father, is a supporting character in the franchise's WWII-era adventures (Captain America and the Agent Carter One-Shot and series).
    • A major scene in Avengers: Age of Ultron involves the arms dealer Ulysses Klaue, who will later carry over into Black Panther. This was a whole year before Black Panther himself was introduced in Civil War, and almost three before the Black Panther movie itself.
    • Ant-Man includes a flashback scene with both Peggy Carter and Howard Stark, and Ant-Man gets in a fight with the Falcon. Viral videos promoting the film also featured Christine Everhart, the reporter from the first two Iron Man films.
    • While Captain America: Civil War is meant from the start to be a crossover movie, the appearance of Hulk character General (now Secretary) Ross is notable because it's been eight years since his last appearance and because he appears when the Hulk himself does not.
    • Thor: Ragnarok is going to have the Hulk as a guest star.

    Gamebooks 
  • Lone Wolf and its spin-off World of Lone Wolf:
    • Madin Rendalim, master Healer from Durenor, appears both in Grey Star the Wizard and Fire on the Water, thus being one of the rare people having met both Lone Wolf and Grey Star.
    • The Chaos-master is a villain both in Beyond the Nightmare Gate and The Prisoners of Time. Grey Star has to make an uncomfortable deal with him; Lone Wolf's encounter is much more straightforward.
    • Acarya, the High Wizard of the Shianti, sends Grey Star on his quest, and is the one to welcome the New Order Grand Master and take the Moonstone from him.

    Literature 
  • Although the Discworld is technically one series, readers tend to group the books according to which recurring protagonist is the focus, and certain said protagonists cross over briefly into other books. (In particular, Pterry has noted that it's very hard to set a novel in Ankh-Morpork without the Watch taking an interest.)
    • One What Could Have Been moment: at one point Pterry considered that the various powers attending the Low King's coronation in Thud! would include the King and Queen of Lancre. We'd know they were Verence and Magrat, but to Vimes they'd just be a couple of royals he was briefly introduced to.
  • One of Bret Easton Ellis's signature techniques: Clay, the protagonist of Less Than Zero, is a minor character in The Rules of Attraction; Patrick Bateman, a minor character in The Rules of Attraction, is the protagonist of American Psycho, and so on.
  • Agatha Christie does this a fair bit. For example, Inspector Japp of the Poirot series appears in the first Tommy and Tuppence book. Poirot's secretary Miss Lemon and friend Ariadne Oliver are both old associates of Mr. Parker Pyne, and Ariadne Oliver appears in The Pale Horse, which also featured the vicar's wife from the Miss Marple novel The Moving Finger. In Three Act Tragedy, Poirot teams up with Mr. Satterthwaite. A mysterious character who is only referred to as Mr. Robinson appears with Poirot in Cat Among the Pigeons, Miss Marple in At Bertram's Hotel, and Tommy and Tuppence in Postern of Fate; he also appears in Passenger to Frankfurt, which does not feature any of Christie's series detectives.
  • Banjo Paterson's poem "The Man from Snowy River" namedrops the title character of another of his works, "Clancy of the Overflow." Clancy is also given a prominent role in the movie adaptation.
    • And "Harrison, who made his pile when Pardon won the cup" is presumably the narrator and placer of the victorious bet in Paterson's "Pardon, the Son of Reprieve".
  • Stephen King will often make brief references to characters and events from previous books, especially if those books took place in Castle Rock, Maine.
  • The character Hoid appears in all of the works of Brandon Sanderson set in the Cosmere (Mistborn, Elantris, The Stormlight Archive and Warbreaker) to serve various roles, such as a begger or a storyteller.
  • P. G. Wodehouse did this quite a bit, mostly by having characters in more than one series belong to the Drones Club or visit/make reference to Blandings Castle.
  • S.M. Stirling's Nantucket series is confirmed to be connected to the author's Emberverse series.
  • One of Thomas Disch's stories made a brief reference to the horrible fate of the main character in his story "The Roaches."
  • Several characters from L. Frank Baum's lesser-known books made appearances in Oz, most notably Cap'n Bill and his ward Trot, and a boy named Button-Bright who had a talent for ending up precisely where he wanted to be despite getting lost along the way.
  • Frequently occurs in the Tortall Universe by Tamora Pierce. In fact, it occurs in every sub-series. Alanna's crowd are significant characters in The Immortals, Daine is a friend of Keladry's in Protector of the Small, and Daughter of the Lioness is about, Alanna's daughter. The exception is Provost's Dog as it's a prequel; even then, the protagonist is an ancestor of Alanna's husband and meets one of Alanna's own ancestors.
  • Brother Zachariah from The Mortal Instruments, is Jem Carstairs, who appears the way he does due to being unable to complete the entrance rituals because of the yin fen in his body.
  • The Henry Huggins books and its Sequel Series, Ramona Quimby are set in the same neighbourhood, so they share a couple characters.

    Live-Action TV 
  • Boston Public, Ally McBeal and The Practice had a crossover.
  • Back when Jim Henson was alive and owned all of the The Muppets, Kermit the Frog provided this to the various Henson/Muppet productions. He was the main character on The Muppet Show, a major character on The Jim Henson Hour, a recurrer on Sesame Street, and host of specials such as Emmet Otter's Jug-Band Christmas . The various productions also had crossovers, though this doesn't happen as frequently now that the various parts of the former Muppet universe have been sold to different companies.
  • Beverly Hills 90210 begat Melrose Place which begat Models Inc. Characters like Jake from Melrose Place appeared on 90210 before Melrose Place began. Later Melrose Place characters appeared on Models Inc. (Amanda Woodward's mother and half-brother ran Models Inc.). Later, some of the original 90210 cast members returned for the reboot of 90210 and some of the original cast of Melrose Place returned for the reboot of that show as well.
  • Steve Urkel of Family Matters fame has appeared in both Full House and Step by Step.
  • Buffy the Vampire Slayer / Angel:
    • The characters in both shows inhabited the same universe and crossed-over regularly. Angel, Cordelia, Wesley, Spike, and Harmony all started on Buffy and then became main characters on Angel. It's worth noting that they are the ones who end up with the most character development; all of them except for Harmony end their time in the Buffyverse very different from when they first appeared.
    • Rumor has it, if Firefly had continued, at some point, the crew would have been passing a bar, one of the characters in a long black coat would have said, "Nothing ever bloody changes," before turning around to reveal himself as Spike.
    • The Fray comics take place in the Buffyverse in the distant future, in which Buffy and the new slayers are long dead. Melaka Fray herself crossed into the Buffy Season Eight comic book during one arc.
  • Hercules: The Legendary Journeys had a spin-off in Xena: Warrior Princess, so this inevitable. While the leads occasionally ran into each other, the two shows featured a number of the same recurring characters, including Autolycus, Salmoneus, Ares, Aphrodite, Hades, and Dahak.
    • Writers from both shows also experimented with this trope for minor villain Sisyphus. He first appears in "Death in Chains" (a Xena episode) and returns the following week in "Highway to Hades" (a Hercules episode). He dies in the latter episode, but returns in Xena's "Ten Little Warlords" (albeit played by a different actor this time).
    • Young Hercules was set years in the past, so it served to explain how Hercules met already established characters, like Iolaus, Jason, and various Olympians. After the show was established, Lilith made a couple appearances as her adult self on Hercules: The Legendary Journeys.
  • Characters from Cheers, including Norm, Cliff, Rebecca, and Frasier appeared on Wings, and later on the spin-off Frasier.
    • Carla, Norm and Cliff were also in an episode of St. Elsewhere titled, amusingly enough, "Cheers". Carla has also appeared on the short lived Cheers spin-off The Tortellis which revolved around her ex-husband Nick, their brood of children and Nick's new wife Loretta most of which were recurring characters on Cheers.
  • Dr. Roxanne Turner from St. Elsewhere showed up on an episode of Homicide: Life on the Street. Dr. Victor Ehrlich from St. Elsewhere appeared in the Homicide movie.
    • Speaking of St. Elsewhere, related to this trope is the "Tommy Westphall Universe", a theory which posits that nearly 90% of all American television exists in a shared universe, which exists entirely inside the mind of Tommy Westphall, an autistic child character on St. Elsewhere who, in the series finale, is revealed to be looking into a snow globe and imagining the events of the television show. St. Elsewhere crossed over with many different shows, which themselves crossed over with, and spun off, many different shows, which themselves crossed over, etc, creating an interweaving "universe" than encompasses a good majority of American television.
  • Richard Belzer has played Baltimore (later NY) PD detective John Munch on approximately a dozen different TV series.
    • In addition to Belzer's example, Law & Order: SVU had Angie Harmon from the parent series consulting in the first series before they got their own, dedicated prosecutor. Whoever was playing the District Attorney in the parent series would also occasionally have an appearance.
  • Characters from Stargate SG-1 and Stargate Atlantis regularly crossover.
    • Several characters from SG-1 have also appeared on Stargate Universe more than once.
    • McKay and Woolsey were both introduced as one-off antagonists in SG-1 before becoming regular characters on Stargate Atlantis. They both appeared in the Stargate Universe Season 2 episode "Seizure" to boot, making them the only Atlantis regulars bar Samantha Carter to appear in Universe.
  • Characters from Friends and Mad About You have crossed over. Mostly it's been Phoebe and Ursula Buffet, identical twins both played by Lisa Kudrow. Kudrow originally appeared as Ursula on Mad About You, and when she was cast as Phoebe on Friends, the two characters were made into twins to explain their identical appearance.
  • The Disney Channel did this with a triple crossover of some of their most popular shows, a mishmash called That's So Suite Life of Hannah Montana.
    • They performed another hodgepodge later, with Wizards on Deck With Hannah Montana.
  • Rare Panel Game example; before the final axing of its third part, Have I Got Buzzcocks All Over was an irregular Children in Need occurrence.
  • Jack Harkness debuted in Doctor Who then got spun off into his own show, Torchwood. Similarly, Sarah Jane Smith originated on Doctor Who back in the '70s, had a brief spinoff called K-9 and Company, then returned to the revived series in the mid '00s before receiving her own spin-off, The Sarah Jane Adventures, taking K-9 along with her. Both of them returned for the 2-part fourth series finale of Doctor Who which also brought along two other characters from their own shows (Mr. Smith and Luke from SJA and Gwen and Ianto from Torchwood). Earlier Martha Jones had appeared on Torchwood for a story arc and later the Tenth Doctor visited Sarah Jane on SJA. Both characters then later reappeared for the Tenth Doctor's last story along with several other characters who had appeared throughout his tenure. The Eleventh Doctor appeared on SJA bringing along Jo Grant who was a companion to the Third Doctor just before Sarah Jane. Meanwhile, an early version of K-9 that had been Put on a Bus back in 1978 was featured in a non-BBC spin-off, K9.
  • In the Cold Open of the episode "Seminar" from The Office (US), Michael Scott runs into David Brent, his counterpart from the original British series. David appears again in the season 7 finale "Search Committee" as one of the people auditioning to replace Michael as manager.
  • The character Director Leon Vance appears in both NCIS and, its spin-off, NCIS: Los Angeles, being that he is the director of the Naval Criminal Investigative Service in CBS's NCIS franchise.
    • A very subtle version happens in the first season of NCIS when Bud Roberts from JAG appears as to consult on an old case.
  • Kensi from NCIS: Los Angeles made a guest appearance on the revival of Hawaii Five-0. And then NCIS: Los Angeles and Hawaii Five-0 did a two-way crossover where Callen and Sam came to Hawaii to prevent a black-market bioweapons buy, then Danno and Chin Ho went to L.A. to stop one of the involved parties from unleashing the bioweapon in question.
  • The character Penelope Garcia is the technical analyst in both Criminal Minds and its spin-off, Criminal Minds: Suspect Behavior.
  • The second season finale of Cougar Town features appearances by Ted Buckland and Abed.
    • The second season finale of Community also features a brief blink and you miss it cameo of two characters from Cougar Town. Also, Abed references his being an extra on Cougar Town in Community.
    • Oddly enough, while some actors who have appeared in creator Bill Lawrence's earlier series Scrubs have also appeared in Cougar Town, Ted is the only character that appears in both shows, and the show Scrubs exists in that universe. He even noticed how weird it was that some of the characters in Cougar Town looked like people he knew.
  • Naturally, the different iterations of Star Trek feature cameos from different characters, and share recurring nemeses like Q and The Borg. Worf is particularly notable for being a main character on both Star Trek: The Next Generation and Star Trek: Deep Space Nine. O'Brien also counts; he started out as a nameless extra in TNG's pilot episode, becoming one of the most recurring characters on the show before being promoted to series regular on DS9.
    • He's also an identically-named Identical Grandson of Colonel Worf in the last original Star Trek movie, allowing Worf to sorta be in three series.
    • Every Star Trek series begins with a sendoff from someone from another (except the original, of course.) In Star Trek: The Next Generation McCoy visits the new Enterprise; in Star Trek: Deep Space Nine, Picard arrives at the station; in Voyager, we first meet Harry at Quark's bar. Of course, Star Trek: Enterprise is harder to do it with without Time Travel, but we do see a video of Zefram Cochrane, played by the same actor as in Star Trek: First Contact. And, Will Riker is actually in the holodeck playing out a historical recreation for the final episode (now considering this is a prequel series...)
      • Even the films follow this: Star Trek: Generations includes several original cast members in the beginning and Kirk via basically time-travel passes the torch to Picard. While, in the more recent reboot, Spock travels back in time and explains the origin of the villain.
  • Mr. Drucker appeared on both Green Acres and Petticoat Junction, as his grocery store was frequented by both show's characters. The two shows often had characters visit each other regularly in the early seasons.
  • Once Upon a Time and Once Upon a Time in Wonderland are set in the same 'verse and have had several one-way (OUAT-to-OUATW) crossovers. The crossover is set to happen the other was as ABC announced in April 2014 that at least one major character from the now-cancelled Wonderland is to join the regular cast of the parent series for the 2014-15 season.
  • Ray Barone and Doug Heffernan were shown to be friends and often appeared on each other's shows.
    • However, Kevin James originally played a completely different character (who also happened to be Ray's friend) on Everybody Loves Raymond.
  • Karen Sisco appears in Justified, but due to rights issues uses the surname Goodall with the explanation that she's since married. She's played by Carla Gugino, who played her in the character's short lived television series.
  • The TV branch of the Marvel Cinematic Universe has its own share of crossover characters:
    • Agents of S.H.I.E.L.D. stars Coulson, who was established in the movies, and has seen appearances of various sizes from throughout the MCU:
      • Nick Fury and Maria Hill make occasional appearances, as do Agent Sitwell (who appeared in various movies and One-Shot shorts) and Agent Blake (from the Item 47 One-Shot).
      • Peggy Carter and a couple of the Howling Commandos from the first Captain America film show up in a flashback.
      • Two episodes guest-star Thor's Lady Sif.
      • Between his two movie appearances (Captain America: The Winter Soldier's mid-credits scene and the opening of Avengers: Age of Ultron), high-ranking HYDRA scientist Dr. List appeared on Agents of S.H.I.E.L.D. as a major enemy; his boss Baron Strucker also got name-dropped regularly during that same period.
      • One of the World Security Council members from The Avengers is a major character in Season 3, and is revealed to be a leader of HYDRA. President Ellis from Iron Man 3 also makes recurring appearances in Season 3.
    • Various WWII-era Captain America characters have carried over to Agent Carter (both the TV series and the One-Shot short film that preceded it): Peggy Carter (of course), Howard Stark, Dum-Dum Dugan, and Arnim Zola. Anton Vanko from Iron Man 2 also briefly appears.
    • The Netflix shows share a number of characters among themselves, and The Defenders (2017) will be its Avengers equivalent bringing them all together:
      • Claire Temple serves a similar role that Coulson once did in the movies, appearing in a supporting role in all the various shows.
      • One of Daredevil's villains, Madame Gao, is strongly implied to be connected to Iron Fist's mythology.
      • Luke Cage appeared in Jessica Jones before he got a series of his own, and Jessica in turn appears in his show.
      • The Punisher was a major character in Season 2 of Daredevil before being spun off into his own show.
      • As of the second season of Daredevil, Marci has gotten a new job at the law firm from Jessica Jones, and Jeri Hogarth personally shows up later to hire Foggy as well.
      • Connecting to the wider MCU, Carl "Crusher" Creel plays notable parts in both Agents of S.H.I.E.L.D. and the backstory of Daredevil, though he doesn't appear onscreen in the latter. Daredevil also has the Dogs of Hell biker gang in Season 2, which originated in an episode of Agents.
  • George Jefferson, from All in the Family and The Jeffersons, made a few appearances in The Fresh Prince of Bel-Air, including a brief but important role in that show's series finale where he purchases the Banks' house when they decide to move out.

    Pro Wrestling 
  • The National Wrestling Alliance wasn't the first, or even the second wrestling body to proclaim a World Heavyweight Championship, but it turned the world title belt into a powerful marketing tool by establishing a larger alliance of wrestling promotions around the world than ever before seen and sending the world champion through each of them to defeat local competitors and legitimize himself, each promotion having some say in who would hold the belt. The NWA has/had several other world champions to.
  • Bad Ass Translate Trading(BATT), the most visible sign of the All Japan\New Japan working agreement of 2000-02, as it was a Power Stable containing members of both promotion's locker rooms and thus was the most constant source of overlap.
  • Ring of Honor officially recognized SHIMMER's champions as its own "women of honor" and The World Wrestling Network established itself as such by having the Full Impact Pro Heavyweight Champion defend his belt at ROH events.
  • The Allied Independent Wrestling Federations each have their own separate title belts but all recognize a specific group of champions who represent them all. Even though Ring Wars Carolina is not an official member of the AIWF, they still did away with their own women's championship (in favor of a No Limitz belt anyone could challenge for) and hosted AIWF women's championship matches instead, including the match to decide the very first women's champion.
  • Pro Wrestling International, fearing the end of pro wrestling as we know it, got the idea to send its champions to independent promotions in Canada and Europe, to get them recognized by them and promote collaboration, realizing in the current climate, competition wasn't always necessary, or even best for business.
  • The World Wrestling League titles have been defended in promotions ranging from The Dominican Republic to Mexico to Bolivia and occasionally it works the other way around, with NRW LL, WWC and all around Puerto Rican star Glamour Boy Shane being acknowledged as such in TNA, despite being a lowly referee there or its talent's TNA exploits being openly referred to during their AAA or CMLL appearances.

    Video Games 
  • RPGs are well known for cameo characters making appearances in different games by the same developers, though these characters don't necessarily indicate that the games take place in the same universe, and are often a sort of internal Shout-Out.
  • Bleu/Deis appears in several Breath of Fire games. It's the same Deis in every game where she appears, not just a Shout-Out cameo, as she's an immortal goddess and the sister of the franchise Big Bad, Tyr/Myria.
  • Weak Warrior, Dragon Storm, and Kingdom Wars characters overlap.
  • MonTowers ~Legend of Summoners~ and MonTowers II characters overlap.
  • Anime Arcade, Cyanity, Anime Gacha! and Gacha World characters overlap.
  • Gabrielle Celeste and Ethereal Queen appear in all the Star Ocean and Valkyrie Profile games (made by tri-Ace). In addition, Lenneth and Freya from VP1 appear in Star Ocean: Till the End of Time; Puffy and Raddle the Traveler appear in all three Star Ocean games; Dirna Hamilton and Solon Solute from SO3 appear in VP2; Welch from SO3 appears in the remake of SO1.
  • There's only a few Nippon Ichi games that don't feature crossover cameo appearances, most of them being recruitable, and the list only continues to grow. In fact, Asagi, who debuted as an Early-Bird Cameo for a cancelled game, lives on solely as a cameo. She'd had a 100% attendance record every since.
  • The Shin Megami Tensei series has included many crossovers, from the main character from Shin Megami Tensei if...... appearing in Persona and Persona 2, and more recently Raidou appearing in the rerelease of Shin Megami Tensei: Nocturne (in place of Dante) included with the special edition of Raidou Kuzunoha 2.
  • Castle of Shikigami: Nigi Gorgeous Blue from Gunparade March appears in Castle of Shikigami II, and Reika from Time Gal appears in Castle of Shikigami III.
  • While the older Ace Combat games were unambiguously set in the same Constructed World, their storylines were so self-contained that they could have just as well been taking place in parallel universes. However, a few overlapping characters linked the storylines together.
  • The Monsta and Mighta enemies from Bubble Bobble also appeared in the earlier Taito game Chack'n Pop.
  • Sam Durkin first appeared in The Shivah, he has since gotten a more expanded role in The Blackwell Series.

    Visual Novels 
  • A handful of overlapping characters is all that holds the Type Moon multiverse together (the convoluted magic laws aside): Cool Old Guy Zelretch plays a large role in the backstory of Tsukihime and makes a cameo appearance in Fate/stay night. His unique True Magic allows him to travel through the multiverse, and to create devices allowing others to do the same. Cool Big Sis Touko Aozaki is a major character in Kara no Kyoukai, is mentioned briefly in Fate, and her sister Aoko appears in Tsukihime and is the protagonist of Mahou Tsukai No Yoru.
  • When Voltage Entertainment USA localized My Sweet Bodyguard into To Love & Protect, Japanese Prime Minister Hiraizumi was adapted into President Robertson and his bodyguards Daichi Katsuragi and Subaru Ichiyanagi into Secret Service agents Chadwick McGrew and Edgar Morton. Robertson subsequently appears in a major supporting role in the Voltage USA original game Queen's Gambit, with Chadwick and Edgar in minor roles. It's not clear if this is a case of shared continuity, alternate continuity, or simply recycling of convenient existing character assets.

    Web Comics 
  • The Midnight Crew appeared in the tenuously canonical Fan Donation section of Problem Sleuth before having an intermission to themselves in Homestuck, which was revealed at the end to have storyline relevance with the Crew being the Trolls' equivalent of WV, and the rival gang being led by the Bigger Bad.

    Web Video 

    Western Animation 
  • Probably the most famous practitioner of this in animation is Hanna-Barbera. During The '70s and into The '80s, H-B loved crossing over its own properties as much as possible.
    • Scooby-Doo was an absolute magnet for this. Characters from H-B's adventure series (original and licensed) showed up — including (but not limited to) Jeannie, Speed Buggy, Dynomutt, and Josie and the Pussycats.
      • An episode of Scooby-Doo! Mystery Incorporated poked fun at this tendency with the Gang going up against Captain Caveman, Jabberjaw, Speed Buggy, and so on.
      • Yet another Mystery Inc. episode featured an extended cameo of Blue Falcon and Dynomutt... only this time not Played for Laughs.
      • During Scooby-Doo's period of near-total inactivity (1991-1998), the gang crossed over with Johnny Bravo in "Bravo-Dooby-Doo".
    • At least three of H-B's Made-for-TV Movies crossed Yogi Bear over with characters from The Huckleberry Hound Show along with some of their other cartoon series with similar design aesthetics.
    • Similarly, a Space Ghost cliffhanger was resolved with the aid of the company's less-remembered Moby-Dick interpretation.
    • This is THE ENTIRE POINT of Harvey Birdman, Attorney at Law note 
    • The Jetsons Meet the Flintstones exists. Did we mention Hanna-Barbera LOVED this trope?
  • Another Disney example — Kim Possible, Ron Stoppable, and Rufus the naked mole rat teamed up with Lilo in an episode of Lilo & Stitch: The Series.
    • And again in another episode of the same show, this time with the titular character of American Dragon: Jake Long and his two best friends teaming up with Lilo and Stitch.
    • And double again with crossovers with Recess and The Proud Family.
  • One episode of the TV version of Disney's Hercules involved a crossover with the cast of Aladdin.
  • DuckTales and Darkwing Duck have Launchpad McQuack in common as a main character, and Gizmo-Duck as a notable recurring one. Darkwing also saw the occasional cameo from Flintheart Glomgold, the Beagle Boys, and Magica De Spell.
  • One episode of the Ace Ventura Animated Adaptation featured Stanley Ipkiss from the animated adaptation of The Mask.
  • Animaniacs:

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