History Main / CharacterOverlap

* In [[{{Film/Transformers}} the first live-action Transformers movie]] directed by Michael Bay, Travis van Winkle plays a JerkJock named Trent. The [[{{Film/FridayThe13th2009}} 2009 reboot of Friday the 13th]], produced by Michael Bay, has Travis van Winkle play a JerkJock named Trent. According to WordOfGod, they're the same character.

** Black Widow first debuts as a supporting character in ''Iron Man 2'', then later becomes a supporting character in ''Captain America 2''.

** ''Iron Man 3'' includes [[spoiler:Bruce Banner]] in TheStinger as a gag.

*** Even the films follow this: ''StarTrekGenerations'' includes several original cast members in the beginning and [[spoiler:Kirk via basically time-travel]] passes the torch to Picard. While, in [[Film/StarTrek the more recent reboot]], [[spoiler:Spock travels back in time and explains the origin of the villain.]]

** Alan Shore form ''ThePractice'' went to join the law firm in ''Series/BostonLegal''.

* Naturally, the different iterations of ''Franchise/StarTrek'' 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 ''Series/StarTrekTheNextGeneration'' and ''Series/StarTrekDeepSpaceNine''. 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 pormoted to series regular on DSN.

* Jack Harkness debuted in ''Series/DoctorWho'' then got spun off into his own show, ''Series/{{Torchwood}}''. Similarly, Sarah Jane Smith originated on ''Doctor Who'' back in the '70s, had a brief spinoff called ''[[K9AndCompany]],'' then returned to the revived series in the mid '00s before receiving her own spin-off, ''Series/TheSarahJaneAdventures'', taking [[TeamPet 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.

* Jack Harkness debuted in ''Series/DoctorWho'' then got spun off into his own show, ''Series/{{Torchwood}}''. Similarly, Sarah Jane Smith originated on ''Doctor Who'' back in the '70s and then returned in the mid '00s before receiving her own spin-off, ''Series/TheSarahJaneAdventures'', taking [[TeamPet 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.

* Characters from ''TheDayOfRevolution'' and ''Family Complex'' have roles of varying sizes in ''PrincessPrincess.'' 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''.

** The characters in both shows inhabited the same universe and crossed-over regularly. Cordelia, Wesley and Spike are all characters who 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 ending thei time in the Buffyverse ''very'' different from when they first appeared.

* The characters in ''Series/{{Angel}}'' and ''Series/BuffyTheVampireSlayer'' inhabited the same universe and crossed-over regularly.

** Many of NipponIchi's games feature crossovers, such as [[{{Disgaea}} Etna]] and [[VideoGame/LaPucelle Priere]].

* Another Disney example -- WesternAnimation/KimPossible, Ron Stoppable, and Rufus the naked mole rat teamed up with Lilo in an episode of ''LiloAndStitchTheSeries''.

* The second season finale of ''CougarTown'' features appearances by [[{{Scrubs}} Ted Buckland]] and [[Series/{{Community}} Abed]].
** The second season finale of ''Series/{{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.

* The ''Franchise/ShinMegamiTensei'' series has included many crossovers, from the main character from ''ShinMegamiTenseiIf...'' appearing in ''VideoGame/{{Persona}}'' and ''{{Persona 2}}'', and more recently Raidou appearing in the rerelease of ''ShinMegamiTenseiNocturne'' (in place of [[VideoGame/DevilMayCry Dante]]) included with the special edition of ''Raidou Kuzunoha 2''.

** Every ''Franchise/StarTrek'' series begins with a sendoff from someone from another (except the original, of course.) In TNG [=McCoy=] visits the new Enterprise; in DS9, Picard arrives at the station; in Voyager, we first meet Harry at Quark's bar. Of course, ''Enterprise'' is harder to do it with without TimeTravel, but we do see a video of Zefram Cochrane, played by the same actor as in ''Film/StarTrekFirstContact.'' And, [[spoiler: 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: StarTrekGenerations includes several original cast members in the beginning and [[spoiler: Kirk via basically time-travel]] passes the torch to Picard. While, in [[Film/StarTrek the more recent reboot]], [[spoiler: Spock travels back in time and explains the origin of the villain.]]

** Every ''Franchise/StarTrek'' series begins with a sendoff from someone from another (except the original, of course.) In TNG McCoy visits the new Enterprise; in DS9, Picard arrives at the station; in Voyager, we first meet Harry at Quark's bar. Of course, ''Enterprise'' is harder to do it with without TimeTravel, but we do see a video of Zefram Cochrane, played by the same actor as in ''Film/StarTrekFirstContact.'' And, [[spoiler: Will Riker is actually in the holodeck playing out a historical recreation]] for the ''final'' episode (now considering this is a ''prequel'' series…)

* In the ColdOpen of the episode "Seminar" from ''TheOffice'' (US version), 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.

** Every ''Franchise/StarTrek'' series begins with a sendoff from someone from another (except the original, of course.) In TNG McCoy visits the new Enterprise; in DS9, Picard arrives at the station; in Voyager, we first meet Harry at Quark's bar. Of course, ''Enterprise'' is harder to do it with without TimeTravel, but we do see a video of Zefram Cochrane, played by the same actor as in ''Film/StarTrekFirstContact.''

* In [[{{Film/Transformers}} the first live-action Transformers movie]] directed by Michael Bay, Travis van Winkle plays a JerkJock named Trent. The [[{{Film/FridayThe13th2009}} 2009 reboot of Friday the 13th]], directed by Michael Bay, has Travis van Winkle play a JerkJock named Trent. According to WordOfGod, they're the same character.

* ''Fanwork/ZanyToTheMax'' 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 ''MonstersInc''

** The second season finale of ''Series/{{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.