When a character leaves one show to join the cast of another (often because the original show has ended). Basically a permanent crossover.

Sometimes a character's Spin-Off gets canned. When this happens, they'll often transplant back to their show of origin, with some flimsy explanation; if this happens, the chances of a Fully Absorbed Finale go way up. See also Rogues-Gallery Transplant, a more specific variant of this trope where a villain from a superhero's Rogues Gallery shifts to fighting someone else. Compare Canon Immigrant. Not to be confused with the wiki operation that is also called a Trope Transplant.


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    Anime & Manga 
  • Manga example: Subaru from Tokyo Babylon becoming part of the cast of X1999. His Arch-Enemy, Sakurazuka Seishirou, joins the cast as his opposite while his twin sister makes cameos.
  • Katori Matou from Roman Club joins Amanchu! as scuba club advisor and Hikari's homeroom teacher.
  • Kaneda, one of the teachers, in Wandering Son was a character in Shiki no Juunin. The anime adaptation references this by showing Kaneda meeting a green haired man and a woman (the protagonists of the previous manga) in the final episode.
  • After Mahou Sensei Negima! ended, Evangeline, who now goes by Yukihime, moved on to the Stealth Sequel series UQ Holder!. Later on, Fate, one of the primary antagonists of Negima and other characters like Mana also show up.
  • In chapter 47 of My Hero Academia, Momo and Kendou got internship under Snake Heroine Uwabami. Her name and design is lifted straight from Uwabami from Oumagadoki Doubutsuen, one of the author's previous works. In Academia's universe, she is a human with superpowers rather than a snake with a human form. Other characters make cameos (Shishido and Toytoy to name a few), presumably running on the same principle as Uwabami.
  • In Dragon Ball Z: Resurrection F and later Dragon Ball Super, the Z Fighters are joined by Jaco the Galactic Patrolman, from another Akira Toriyama manga. This happens because Jaco was actually a Stealth Prequel to the entire Dragon Ball franchise and Bulma knew about him because her older sister Tights was one of the main characters in that series.

  • At the end of Ultimate Power, an Intercontinuity Crossover between Ultimate Marvel and the Supreme Power universe, Zarda and Nick Fury switched places. The latter was a major character in the post-Time Skip new Supreme Power series, while the former had some Destructo-Nookie with the Hulk. After Ultimatum, Nick Fury crossed back over.
  • Ultimate Spider-Man also had its share of transplanting. First Kitty Pryde left the X-Men and became Peter's girlfriend for a while, and then they returned the favor when this universe's Liz Allan was revealed as a mutant and went to train at Xavier's. And after a Wham Miniseries and subsequent Time Skip, the Parkers took in refugees from canceled series: Human Torch and Iceman.
  • Peter David's Sachs and Violens, of the mini-series of the same name, were transplanted ten years later to Fallen Angel.
  • Charity, the onetime Horror Host of 70s DC "Weird" horror title Forbidden Tales Of Dark Mansion, later shows up in the 1990s Starman series.
  • The entire roster of Quality, Fawcett, and Charlton Comics superheroes were transplanted into the DC Universe after DC bought them all.
  • The Sandman contains a number of horror host transplants: Cain and Abel are the most famous, but also Eve, the Three Witches, Destiny, Lucien and The Mad Mod Witch.
  • A lot of Deadpool's supporting cast and enemies are obscure characters who were carried over with Deadpool when he made the jump to being a standalone character rather than merely a supporting X-Men character. Domino, Taskmaster, ZERO, Dr. Bong, Sandi Brandenberg, Outlaw, and Deuce the Devil-Dog are just a few examples. Cable, while not fully transplanted from the X-Men, is more often remembered for his partnership with Deadpool than any of his other escapades.
  • Maggie Sawyer first appeared in Superman's comics as one of Metropolis' cops. Of course, ask any reader what they know about her, and they'll most likely say she's Batwoman's girlfriend. That's because, at the beginning of the New 52, Batwoman's previous love interest Renee Montoya was Ret Gone, so they had Maggie transfer from Metropolis to Gotham. And after Batman Eternal, Maggie became Commissioner Sawyer. Maggie was later made somewhat redundant when Renee was finally brough back into continuity, and as of DC Rebirth, she's been Put on a Bus back to the Superman books, where she's once again a Metropolis police officer.
  • Mary Jane, one of most famous supporting character of Spider-Man, became a main character in the 2015 Invincible Iron Man run replacing Pepper Potts role as new Tony's personal assistant.

    Fan Works 
  • In a Homestar Runner fan series called "The Homestar Runner Show," Weena from The Time Machine is a regular character, even having some cartoons where she is the main character!

  • L. Frank Baum wanted to move away from the Oz books and tried to start a new series with a new little girl protagonist, Trot. This series didn't do as well, and Trot ended up moving to Oz (in The Scarecrow of Oz) and getting immediately Demoted to Extra there.
  • Professor Chronotis in Dirk Gently's Holistic Detective Agency was originally a character created for the Development Hell Doctor Who episode "Shada" as a retired Time Lord and an Eccentric Mentor for the Doctor. Knowing this makes some of the weirder things about him - his casual mentions of being thousands of years old, having other faces, and having a Bigger on the Inside time machine - make an awful lot more sense.
  • Granny Weatherwax and Nanny Ogg are the primary main characters of Discworld's 'Witches' sub-series. However, later on Terry Pratchett decided to "retire" them, and they now tend to only make cameos in other books, most namely as mentors to Discworld to Tiffany Aching, who has her own series.
  • Jas, the Winged Humanoid from the Spelljammer comics by Jeff Grubb and Kate Novak, later joined Finder's Band in the same authors' Forgotten Realms novels.

    Live-Action TV 
  • Kenneth the Page, the Ensemble Dark Horse of 30 Rock, was originally a character on Late Night with Conan O'Brien. Strangely, even after the show was a success, he continued to appear on Late Night and even stayed with Conan when he moved to The Tonight Show.
  • There were quite a few of these in Angel. In fact, in the latter half of the first season, all three main characters were Transplants from Buffy the Vampire Slayer: Angel, Cordelia Chase, and Wesley Wyndam-Pryce. Then in the fifth season — after Buffy had ended — Spike was Transplanted to Angel as well. Also in the latter half of the fifth season, Harmony (a character who originated on Buffy and appeared in both series) was made a regular on Angel.
  • Detective Munch joining the cast of Law & Order: Special Victims Unit after Homicide: Life on the Street went off the air. Law and Order: Special Victims Unit has another character, Captain Cragen, from the early seasons of Law & Order. Det. Lennie Briscoe went from Law and Order to Law & Order: Trial by Jury, though only a few episodes were filmed with him prior to actor Jerry Orbach's death.
  • Chief Miles O'Brien was a main character on Star Trek: Deep Space Nine, having originated as a recurring guest character on Star Trek: The Next Generation. Later, TNG main character Worf was brought onto the main cast in the fourth season of Deep Space Nine following the conclusion of TNG and release of The Movie Generations.
    • They attempted to transplant Next Gen recurring character Ensign Ro Laren to a spinoff series twice, but each time actress Michelle Forbes refused due to reluctance to be tied to a six-year contract. Each time, the role planned to be Ro Laren was rewritten as an original character: for Deep Space Nine it became Major Kira Nerys, and for Star Trek: Voyager it became Lieutenant B'Elanna Torres.
    • Again, this almost happened in Voyager, with Nick Locarno (a guest character from the TNG episode "The First Duty") being planned to be brought back as a main character. When it became apparent they wouldn't be able to bring back the character due to rights issues, they hired the guy who'd played Locarno, wrote for him a new character who was basically the same guy with a few details changed, and named him Tom Paris.
      • The same thing probably happened with Taurik, a Vulcan engineer who was the focus of one episode of Star Trek: The Next Generation. The same actor later played a recurring Vulcan engineer named Vorik on Voyager.
    • Enterprise-D crewman Reginald Barclay also popped up on Star Trek: Voyager, actually making exactly the same number of appearances in both series.
  • The short-lived Stephen Bochco legal drama Civil Wars introduced two characters, Eli Levinson (Alan Rosenberg) and Denise Ianello (Debi Mazar), who, for whatever reason, found themselves as regular characters on L.A. Law after the cancellation of their series.
  • A relatively unimportant and yet much-beloved recurring character on Stargate SG-1, Dr. Rodney McKay, crossed over to Stargate Atlantis. Oddly enough, this wasn't planned: the same actor auditioned for the part of "Doctor Benjamin Ingram", and he impressed the creators such that they decided to rewrite Ingram as McKay.
    • While less prominent in both shows, Major Lorne also appeared in a few episodes of SG-1 before permanently relocating to Atlantis.
    • Followed by Samantha Carter after SG-1 was cancelled. Amanda Tapping was contracted for the never-produced season 11 of SG-1, so they brought her character to star in Atlantis for one season instead. After being in turn replaced as the leader of the Atlantis Expedition by IOA agent Richard Woolsey (yet another transplant from SG-1 who had recurring appearances in Atlantis before), Carter had a guest appearance in the Grand Finale, "Enemy at the Gate". She wasn't intended to only be in one season, but Amanda Tapping wanted to leave to pursue Sanctuary so they had to replace her.
    • O'Neill has now been transplanted to Stargate Universe.
  • Deputy Enos Strait returned to The Dukes of Hazzard when his Atlanta-based spinoff ended after one season.
  • Florence returned to The Jeffersons after her spin-off died a quick death.
  • Joanie Loves Chachi's power-couple returned to Happy Days.
  • The Lone Gunmen was a short-lived spin-off The X-Files. They returned for one episode In which they die heroically. However, Chris Carter has said that nobody really dies for good in that verse...
  • The popular couple Kevin and Lucy from the soap opera General Hospital was transplanted to to GH-spinoff Port Charles to attract GH's fanbase and anchor the new show to its parent show. When Port Charles was canceled six years later, Kevin and Lucy were nowhere to be found on the parent show despite maintaining plausible ties to the canvas. Then again, considering by that time GH was becoming a daytime romance novel version of The Sopranos and PC had become a daytime romance novel version of Buffy the Vampire Slayer with Lucy being revealed as a slayer and half the doctors (including one or two GH-legacy characters) becoming vampires, reintegrating the characters would have been tricky to say the least.
    • On the other hand, it was easier to transplant just about every character in the primetime spinoff Night Shift back to the mothership when it ended.
      • Some of them had never left GH in the first place; they were pulling double duty.
  • After The Golden Girls (and subsequently The Golden Palace) ended, Sophia joined Empty Nest.
  • Helen DuBois, who goes from Josh's boss from Drake & Josh to the principal of Hollywood Arts in Victorious.
  • Senator Edward Sheffield, played by Dean Stockwell, first appeared in the short-lived Donald P. Bellisario produced U.S. Supreme Court series First Monday before he went over to JAG and became the Secretary of the Navy.
  • E.L. "Tenspeed" Turner of 1980's Tenspeed And Brown Shoe turned up in 1987 as a supporting character on JJ Starbuck.
  • After the cancellation of Once Upon a Time in Wonderland, it was announced that Michael Socha's character Will Scarlet would be moved to the show's parent series.
  • When the first of the two Saved by the Bell spinoffs, The College Years, ended Screech was moved over to the other spinoff, The New Class, for the remainder of the show.
  • With the cancellation of the original CSI series, in addition to getting a TV movie to wrap the original show up it was also announced that D.B. Russell would be moved over to spinoff CSI: Cyber.
  • Power Rangers Lost Galaxy had Alpha 6, Bulk, Professor Phenomenus, and Karone as transplants from the "Zordon Era" of the Power Rangers timeline, as Lost Galaxy onwards would adapt Super Sentai's "standalone seasons" method.
  • Mrs. Edna Garrett, the housekeeper from Diff'rent Strokes, went on to become the house mother for the girls in The Facts of Life, although Diff'rent Strokes continued to run in the meantime.
  • The Arrowverse's third series titled Legends of Tomorrow will feature characters from its first two shows Arrow and The Flash (2014) as main characters, specifically; Sara Lance/White Canary, Ray Palmer/The Atom, Martin Stein/One Half of Forestorm, Leonard Snart/Captain Cold and Mick Rory/Heat Wave.

     Newspaper Comics 
  • Patina Welding originated in the comic On The Fastrack as the main character's daughter, but occasionally cameoed in the Shared Universe comic Safe Havens. She eventually made the full transition to Transplant when she decided to go to college at Havens University, where main character of Safe Havens (and former babysitter) Samantha works at.

    Video Games 

  • After a couple of crossovers, Kestrel from webcomic Queen of Wands joined Something*Positive when Queen of Wands finished, and still appears there. It's worth mentioning however that Something Positive fooled just about everyone into thinking this wouldn't happen, after they had Kestrel apparently crushed by a hit and run driver.
    • Explanation: The original appearance was a joke. Something Positive only got full rights shortly before Kestrel's 'real' appearance.
  • Gavin from Nukees joined Schlock Mercenary. En masse, as it happens.
  • The Midnight Crew in MS Paint Adventures first appeared as comical antagonists against Team Sleuth in non-canon, donation-driven strips. In Homestuck, all four members of the Midnight Crew appear to show up again, this time as real adversaries, with someone who eerily resembles Spades Slick acting as The Starscream. This fact is lampshaded in his formal introduction when the narrator tries to name him Spades Slick.

    Western Animation 
  • Donald Duck began as a one-off character in the Silly Symphonies short "The Wise Little Hen", and like so many other Silly Symphonies characters before him the duck was expected to remain a one-off character. But director Burt Gillett liked the duck so much that he brought him back for the Mickey Mouse short "Orphan's Benefit", and the response that Disney got about Donald following the short's debut was overwhelmingly positive. Immediately afterwards the duck was made a major character in the Mickey Mouse series, and the rest is history.
  • General Reginald Skarr from Evil Con Carne moved into the title characters' neighborhood on The Grim Adventures of Billy & Mandy after his show was canceled.
  • Launchpad McQuack was transplanted to Darkwing Duck (initially planned for TaleSpin) after DuckTales ended. Fenton Crackshell/Gizmoduck also popped up from time to time.
  • A fairly obscure example is Goat of Megas XLR, who originated in a short-lived MTV show called Downtown. He's based on a friend of the creators, who also provides the character's voice and is occasionally credited as "Goat" or "Himself".
    • Goat later showed up on Metalocalypse, too. He sure gets around, doesn't he?
  • Figaro from Pinocchio has appeared in several Classic Disney Shorts and House of Mouse as Minnie Mouse's pet.
  • The Red Guy from Cow and Chicken eventually became the antagonist of I Am Weasel as well.
  • A cross-medium transplant occurred from Squee! to Invader Zim, the former being a comic and the latter being an animated show. Squee's teacher was named Ms. Bitters and became the teacher of Zim's class, and the horned aliens from issue one of Squee became the Vortian race and showed up much more frequently on Zim. Conversly, the wheelchair-bound aliens—which had shown up a good deal in Squee—only appear in one episode of Zim.
  • Upon the cancellation of The Cleveland Show, the title character and his family move back to Quahog.