History ChuckCunninghamSyndrome / TheDCU

** In the 90s, ComicBook/LexLuthor had an infant daughter named Lena Luthor, who he loved very deeply but she nonetheless got roped into his life as a supervillain against his wishes. After 2004 though, his character was sent into a different direction. In the midst of it all, Lena just disappeared and it was never explained what happened to her or where she is now, leaving ComicBook/{{Superboy}} as Lex Luthor's only biological child. Her disappearance was eventually explained. As a result of the {{Cosmic Retcon}}s that took place during ''ComicBook/InfiniteCrisis'', Lena was {{Retcon}}ned back into being Lex's younger sister (which she had been Pre-[[ComicBook/CrisisOnInfiniteEarths COIE]]) rather than his child. Lena's daughter Lori subsequently became a prominent supporting character (and [[KissingCousins love interest]]) in ''ComicBook/{{Superboy}}'', at least until she was removed from existence in the ''next'' CosmicRetcon.

** In ''ComicBook/Superboy1994'', Kon had a dog named Krypto; it was a rebooted version of the Pre-Crisis Superboy's childhood pet, a superpowered Kryptonian dog sent by Jor-El before baby Kal-El was sent off in his rocket. Krypto the regular Earth dog was never seen again after Superboy brought him back from Hawaii to Cadmus headquarters. Not long after, Superman actually retrieved his childhood pet Krypto the Superdog from Krypton in a 2001 time-travel story, and early on in Geoff Johns' ''ComicBook/TeenTitans'' this dog was given to Superboy as a pet – somehow it never came up that he used to have another dog with the same name.

* ''ComicBook/Robin1993'': Dana Drake, the stepmother of Tim Drake. When Tim's father Jack was killed off in ''ComicBook/IdentityCrisis'', it was done so Tim could be tied more closely to Bruce, who would formally adopt him. The problem was, though, that Jack had been remarried to Dana, who had been a major supporting character all through Robin's own series. Dana had a mental breakdown over Jack's death and was sent to a sanitarium to recover... In Bludhaven, which would soon be completely destroyed in ''ComicBook/InfiniteCrisis''. One could assume Dana died along with everybody else in Bludhaven, but it was never explicitly stated that she did. Instead, she has simply never been mentioned again. Evidently, DC editors wanted to get rid of her, but realized that having Tim {{Angst}} over losing both his father and stepmother in [[DeusAngstMachina 2 close together yet completely isolated incidents]] (especially when his girlfriend and best friend has also just died) was too much. She would be a ForgottenFallenFriend, except that it was never confirmed she had fallen.

* Atlee (aka Terra III) after the writer/artist switch during ComicBook/PowerGirl's solo series. She appeared in one panel of the first issue after the switch and was then never seen again. Especially noticeable as she had basically been Peeg's {{sidekick}} and was well-liked by fans. She later made her return in the ComicBook/DCYou ComicBook/{{Starfire}} series, ''ComicBook/Starfire2015'', done by the same writing team that introduced her in the first place.

* Franchise/{{Superman}}'s post-''[[ComicBook/CrisisOnInfiniteEarths Crisis]]'' supporting cast is notable because they were built up over such a long stretch of time, and then summarily jettisoned in 1999 when the Dan Jurgens/Louise Simonson era ended. Perry White's family, Bibbo and the other characters from Suicide Slum and the Bottle City characters introduced during the '90s all vanished abruptly. Other characters, like Emil Hamilton and Maggie Sawyer, got thrust deep into the background overnight (Maggie soon [[ComicBook/GothamCentral moved to Gotham]]).
* ComicBook/{{Supergirl}}'s supporting cast and RoguesGallery is often jettisoned and replaced every time a new creative team takes over. Dick Malverne, her foster parents Fred and Edna, some of her enemies such as Lesla-Lar, 'Nasty' Luthor and Black Flame were all never seen again after the ''ComicBook/CrisisOnInfiniteEarths'' in 1987. Post-Crisis Linda Danvers' supporting, characters and Rogue's Gallery vanished after ''ComicBook/ManyHappyReturns''.
* One of the most popular features of Bill Messner-Loebs' run on ''Franchise/TheFlash'' was the large supporting cast -- they even carried the book ''without Wally'' for a couple of issues. When Mark Waid took over, all of these characters except Linda Park and Piper faded into the distant background as Waid proceeded to assemble a new "Flash family". Waid's run was [[MyRealDaddy wildly successful]], but longtime readers still regret the loss of those characters.
** Chunk later returned as part of the "Anti-Eclipso" task force in that villain's book but avoided being subsequently murdered along with several other mostly forgotten characters, like the female Wildcat. He'd later show up at the beginning of Geoff Johns' Flash run targeted by Amnuet Black.
* In the 90s, ComicBook/LexLuthor was a prominent businessman, who was ruthless but maintained occasional PetTheDog moments. Among these was the fact that he had an infant daughter named Lena Luthor, who he loved very deeply but she nonetheless got roped into his life as a supervillain against his wishes. After 2004 though, Luthor became a MadScientist for a little while and with Dan Didio and Geoff Johns at the helm of the DC Universe, his character was sent into a different direction. In the midst of it all, Lena just disappeared and it was never explained what happened to her or where she is now, leaving ComicBook/{{Superboy}} as Lex Luthor's only biological child until ''ComicBook/{{Flashpoint}}''.
** Her disappearance was eventually explained. As a result of the {{Cosmic Retcon}}s that took place during ''ComicBook/InfiniteCrisis'', Lena was {{Retcon}}ned into being Lex's younger sister (which she had been Pre-[[ComicBook/CrisisOnInfiniteEarths COIE]]) rather than his child. Lena's daughter Lori subsequently became a prominent supporting character (and [[KissingCousins love interest]]) in ''ComicBook/{{Superboy}}'', at least until she was removed from existence in the ''next'' CosmicRetcon .
* Dana Drake, the stepmother of Tim Drake, ComicBook/{{Robin|Series}} III, is a particularly {{JustForFun/egregious}} example. When Tim's father Jack was killed off in ''ComicBook/IdentityCrisis'', it was done so Tim could be tied more closely to Bruce, who would formally adopt him. The problem was, though, that Jack had been remarried to Dana, who had been a major supporting character all through Robin's own series. Dana had a mental breakdown over Jack's death and was sent to a sanitarium to recover... In Bludhaven, which would soon be completely destroyed in ''ComicBook/InfiniteCrisis''. One could assume Dana died along with everybody else in Bludhaven, but it was never explicitly stated that she did. Instead, she has simply never been mentioned again. Evidently, DC editors wanted to get rid of her, but realized that having Tim {{Angst}} over losing both his father and stepmother in [[DeusAngstMachina 2 close together yet completely isolated incidents]] (especially when his girlfriend and best friend has also just died) was too much [[EvenEvilHasStandards even for DC.]] She would be a ForgottenFallenFriend, except that it was never confirmed she had fallen. So instead, she is this trope.

* Franchise/WonderWoman:

* The New 52 introduced a new version of ComicBook/TheQuestion who was a faceless immortal who had his memory of his past erased due to committing some crime. After appearing in the "Trinity of Sin" miniseries, the character vanished and was never seen again. A few years later, the original Vic Sage Question ''and'' the Renee Montoya Question were brought back while the New 52 Question is still MIA.
* In ''ComicBook/Superboy1994'', Kon had a dog named Krypto; it was a rebooted version of the Pre-Crisis Superboy's childhood pet, a superpowered Kryptonian dog sent by Jor-El before baby Kal-El was sent off in his rocket. Krypto the regular Earth dog was never seen again after Superboy brought him back from Hawaii to Cadmus headquarters. Not long after, Superman actually retrieved his childhood pet Krypto the Superdog from Krypton in a time-travel story, and early on in Geoff Johns' ''ComicBook/TeenTitans'' this dog was given to Superboy as a pet – somehow it never came up that he used to have another dog with the same name.

** Chunk later returned as part of the "Anti-Eclipso" task force in that villain's book but avoided being subsequently murdered along with several other mostly forgotten characters, like the female Wildcat. He would later show up at the beginning of Geoff Johns' Flash run targeted by Amnuet Black.

* In the 90s, ComicBook/LexLuthor was a prominent businessman, who was ruthless but maintained occasional PetTheDog moments. Among these was the fact that he had an infant daughter named Lena Luthor, who he loved very deeply but she nonetheless got roped into his life as a supervillain against his wishes. After 2004 though, Luthor became a MadScientist for a little while and with Dan Didio and Geoff Johns at the helm of the DC, his character was sent into a different direction. In the midst of it all, Lena just disappeared and it was never explained what happened to her or where she is now, leaving ComicBook/{{Superboy}} as Lex Luthor's only biological child until ''ComicBook/{{Flashpoint}}''.

** Chunk later returned as part of the "Anti-Eclipso" task force in that villain's book but avoided being subsequently murdered along with several other mostly forgotten characters, like the female Wildcat. He'd later show up at the beginning of Geoff Johns' Flash run targeted by Amnuet Black.

* In the 70s ''ComicBook/{{Batman}}'' comics, Lucius Fox had a delinquent son named Tim. The character disappeared very quickly, even though his sister Tiffany continued to show up. ComicBook/PostCrisis, Tim only ever made ''one'' appearance (a cameo in an issue of ''Gotham Knights''), and continued to be forgotten about after subsequent writers introduced two [[RememberTheNewGuy new Fox children]]: Tam and Luke (the latter of whom became the second ComicBook/{{Batwing}}). The character's continued, coupled with nobody ever even ''mentioning'' the poor kid, caused some fans to speculate that ''ComicBook/{{Flashpoint}}'' had wiped Tim from continuity altogether, with Luke retroactively replacing him as Lucius' only son. 18 years after his last canonical appearance, Tim was finally mentioned in a ''ComicBook/TheJokerWar'' Batwing story, confirming that he still exists, but is estranged from his parents and siblings.

* One of the most popular features of Bill Messner-Loebs' run on ''Franchise/TheFlash'' was the large supporting cast -- they even carried the book ''without Wally'' for a couple of issues. When Mark Waid took over, all of these characters, except Linda Park, faded into the distant background. Piper showed up sometimes, and Chunk got the occasional cameo, but the new "Flash family" that Waid proceeded to assemble replaced everyone else (including Wally's ''real'' family). Waid's run was [[MyRealDaddy wildly successful]], but longtime readers still regret the loss of those characters.

* The New 52 introduced a new version of ComicBook/TheQuestion who was a faceless immortal who had his memory of his past erased due to committing some crime. After appearing in the "Trinity of Sin" miniseries, the character vanished and was never seen again. A few years later, the original Vic Sage Question ''and'' the Renee Montoya Question were brought back while the New 52 Question is still MIA.

** [[ComicBook/WonderWoman1987 Post-Crisis]] Wonder Woman entered a business partnership with her friend a Boston based PI Micah Rains, then without a single word as to what happened to their partnership and the offices she rented for them she moved to the other side of the country and he was never mentioned again, despite her returning to Boston on several occasions.

* Atlee (aka Terra III) after the writer/artist switch during ComicBook/PowerGirl's solo series. She appeared in one panel of the first issue after the switch and was then never seen again. Especially noticeable as she had basically been Peeg's {{sidekick}} and was well liked by fans. She later made her return in the ComicBook/DCYou ''ComicBook/{{Starfire}}'' series, done by the same writing team that introduced her in the first place.