Last Episode, New Character

While most characters are introduced at the beginning of the series or the beginning of an arc, sometimes somebody doesn't get to show up until the end of the last episode; they may not even get to speak. This can be a not-so-subtle way for the team creating a series to ask for another season: obviously, the fans will want this character to actually be in some episodes. Or it could be done when the team knows that another season is planned, and they will be able to incorporate this character in the new season. Occasionally, it'll be a character from another medium that the writers weren't able to otherwise fit in.

If a sequel is not planned, the new character may provide a sort of living closure via Passing the Torch.

Compare with God Created Canon Foreigner, Eleventh Hour Ranger, Early-Bird Cameo under Continuity Cameo.


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     Anime and Manga  
  • A Certain Magical Index:
    • At the end of season 1 Laura Stuart appears.
    • Shiage Hamazura in II, which would be an Early-Bird Cameo, except he was actually introduced in that arc in the novel. This, presumably, is a tease for a third season of Index.
  • While the goddess Rind appears surprisingly early in the story, Urd's mother Hild only appears in the last episode credits of Ah! My Goddess. (She does get a larger role in the second season of the TV series, though.)
  • In the anime adaptation of Amatsuki, Kanzou appears for the first time in the ending credits. However, the identity of this mysterious man is hardly the only question viewers are left with after watching the last episode.
  • In the manga version of ARIA, Ai.
  • Ura Sakaki, Tamaki's major rival in the Bamboo Blade manga, only appears in the last few seconds of the anime as sort of a Sequel Hook (there is no second season, by the way.)
  • In the horrible sequel to Dangaioh, Great Dangaioh, in the last five or so minutes of the final episode, an entirely new hero in an entirely new robot shows up to save the day, while telling the current heroes that they aren't needed any more. While he did appear very briefly in earlier episodes, he only had one, maybe two lines (of no more than ten words total) and was always wearing a long coat and sunglasses before he made his true appearance.
  • In the last chapter of the Death Note manga, a new guy named Yamamoto is shown to have joined the National Police Agency. (Then again, Light was shown to have a classmate named Yamamoto, so it might be the same person.)
  • Pan, Uub and Bra in Dragon Ball Z, though Pan becomes a regular character in the anime-only sequel Dragon Ball GT. Uub goes from "Goku's hand-picked student" to "Overshadowed by Awesome" entirely off-screen, and Bra is basically a Living Prop who only really exists to affirm that Bulma and Vegeta (her parents) are still together.
  • The second Durarara!! OVA, the last part of the season, introduces Mairu and Kururi Orihara. They became full-fledged characters in the second season when it debuted five years later.
  • Ogiue is introduced at the end of the ending animation sequence of the last episode of Genshiken, and (obviously) has no lines; she then shows up in the OVA.
  • In the last episode of the anime version of Giant Killing there are lots of group shots. A couple of players who've never been seen before are in the crowd, acting like they've always been there. And logically they should have been seen, when the whole team was shown training. Of course, the original manga was months ahead with the story, by the time that last episode was made.
  • Gourmet Girl Graffiti: Yuki is introduced in the third-to-last episode of the anime and doesn't show up again. In the manga, she becomes the school librarian at Ryo, Kirin, and Shiina's new high school.
  • The Distant Finale of the Gunslinger Girl manga revolves around a character introduced in that chapter: Triela's daughter Speranza.
  • Due to time constraints, the Toei version of Kanon stuffed Mishio's entire story into the last episode of Makoto's arc, with no previous explanation.
  • Right before the end credits of the last episode of the anime version of Kemeko Deluxe! we see Kamishiro Yukina, miko and nanoball prototype, who appears in the manga a couple of chapters after the last anime episode.
  • A strange example occurred in Love Hina, where Naru and Kaolla's siblings appear in the television series but not the manga. However, Naru's sister was given a cameo in the final pages of the manga. The original manga also ended with an epilogue that that introduced a brand new character, Ema Maeda, who was a Distaff Counterpart of main protagonist Keitaro.
  • Hikaru Sakuraba only appeared in the last episode of the Lucky Star she featured more prominently in the manga though.
  • Maiho in Maburaho, who gets one speaking line.
  • Reinforce Zwei of Magical Girl Lyrical Nanoha, whose first appearance in the frachise was in the Distant Finale of the second season.
  • In Mai Hi ME Arika is literally the very last character visible on screen in the final episode, although she never says anything and plays no part in the action. She then appears in Mai-Otome as its lead. (Sunrise also created a fake "movie trailer" for Mai-HiME that had her being a villain and taking over the school.)
  • Tateo Mochizuki makes a cameo at the end of Majin Tantei Nougami Neuro, after the arc he appeared in was cut from the show.
  • Maria†Holic has Enjouji, the hot swimming instructor. Kanako lampshades this. Later subverted, when it's revealed that she's entirely in Kanako's dream.
  • In the last episode of Mazinger Z (and in the Mazinger vs Great General of Darkness movie), Kouji Kabuto and his friends were defeated, Mazinger-Z completely destroyed, and their base demolished. Before Kouji gets killed, though, showed up Tetsuya Tsurugi riding the newer and most powerful Great Mazinger, and easily defeated the new enemy. We were introduced to new characters, enemies and locations would star in the sequel, Great Mazinger.
  • Mobile Suit Gundam AGE introduces a new villain in the very last episode of entire series: Zera Gins, a clone of Lord Ezelcant who provides the final fight for Kio Asuno.
  • In the final chapter of Naruto, over 10 years have passed and most of the recurring cast are married with children. Stand-out characters include Naruto and Hinata's two children, along with Sasuke and Sakura's daughter.
  • In Penguin Musume Heart, the very last shot shows a girl who is perhaps Sakura's sister, looking just like her and also going by the same name, but acting a lot more dignified.
  • Pokémon:
    • Several Pokémon from later generations will often tend to appear toward the end of certain story arc of the anime, with the sole exception being Ho-oh, which appeared at the end of the show's first episode.
    • Giovanni's secretary appears in the final episode of Diamond and Pearl. She becomes a recurring character in Best Wishes, when Team Rocket gains more importance.
  • In the ending montage to Rozen Maiden: Träumend, a new character appears who may or may not be the resurrected version of another character; likely, it's actually the as yet unseen one that she had been impersonating.
  • Ranma ˝:
    • The last story arc introduced not just the Mt. Phoenix tribe (who, like the Musk Dynasty, work just as well as one-shot enemies,) but also the Jusenkyō Guide's daughter, Plum, an adventurous and smart little girl (smarter even than the teens and adults) who never really got much screentime.
    • The animated version did this by introducing Ranma's mother, Nodoka, as the final, two-episode story in the TV series.
  • In Saki Zenkoku-hen, Usuzan High School, one of Kiyosumi's opponents in the semifinals, is introduced after the quarterfinals that comprised most of the series have finished. The same episode also introduces a so far unnamed girl who is implied to play a large role in Saki and Teru's backstory.
  • Bontenmaru in Samurai Deeper Kyo, who gets no dialogue, despite being a major character in the manga.
  • Sgt. Frog: There were three of them in the last episode of the 7th season shown throughout all of Japan (257. 258 had an initial limited Tokyo-only run), two who probably will return later if the anime continues. The characters were the supremer commander of the Keronian army, an invasion AI called DK-666, and also Haru Hinata, Fuyuki's and Natsumi's absent father. The last one basically only had a cameo appearance though, and his face wasn't even shown.
  • Tsukiyo Ooba from Sketchbook has some inconspicuous cameo appearances throughout the series, but only gets a few lines in the last episode, which gets lampshaded by her vocal complaints about this treatment. There is also a glimpse of Soyogi-sensei, who doesn't get a speaking part whatsoever.
  • Subversion: Before airing, it was highly expected that Slayers Try would make use of Lina Inverse's mysterious sister, Luna. Once it aired, she merely made an appearance in the opening, with an accompanying humorous apology note to the fans. Click Here for image.
  • Tiger & Bunny has an in-series example. Barnaby decides to make his debut in the last episode of HeroTV's most recent season (in episode 1 of the actual anime) as a way of making a stellar impression on the in-show audience.
  • The manga version of Tokyo Mew Mew ends with a never-before-seen girl (later identified as Shirayuki Berii) looking through the window at the party inside the Cafe Mew Mew.
  • Konomi Yuzuhara's (from To Heart 2) appearance in the sixth Omake of To Heart:Remember My Memories may count as this.
  • Tsuritama has one in the form of Urara, the very same fish alien... person... who terrorized all of Enoshima for the last few episodes.
  • WORKING!! has Maya, the glasses-wearing girl who had been in shots sprinkled through the entire show, introduced and finally speak in the final episode. This also happens in the manga to a certain extent, since she's only properly introduced in Volume 5. This occurs in the second season as well.
  • Yama No Susume Second Season: Despite appearing in official promo art, Honoka, a quiet girl who likes taking photos, doesn't appear until the final arc of the anime, and returns for the last episode.
  • Yellow Dragon Zeno in the anime version of Yona of the Dawn. His introduction is adapted very faithfully from the manga and he dangles a few plot possibilities in front of the viewers, but with no second season...

     Comic Books  
  • The final issue of the DCU version of The Web introduced Fly Girl and War Eagle, who were part of The Mighty Crusaders in their mini series!
  • The final issue of Buffy the Vampire Slayer Season Eight introduces a new character: a young villain with round sunglasses which some speculate to be Ripper, Giles' persona during his rebellious youth. Of course Season Nine followed soon after.
  • The final issue of Flashpoint introduces Pandora, with no fanfare or explanation of who she was.
  • The final issue of Supreme Power introduces Shape, Inertia, and Emil Burbank, who would all become regular characters in the subsequent Squadron Supreme series.

     Fan Fiction 

  • Santa and the Ice Cream Bunny: The Ice Cream Bunny doesn't appear (or even get mentioned) until the climax.
  • A bit of an odd example: although the trailers seem to indicate otherwise, Venom doesn't show up until shortly before the last battle in Spider-Man 3, but Eddie Brock and the alien symbiote that make up Venom are both major players in the story as separate entities for most of the film.
  • Although the character is shown throughout the movie, it's not until the last act of The Dark Knight that Harvey Dent becomes Two Face.
  • The Dark Knight Rises introduces four new major characters in Bane, Catwoman, John Blake and Miranda Tate along with a slew of new minor characters.

  • In Book 40 of The Railway Series (which, then, was Christopher Awdry's final book) the final story features a new engine, who is named "Ivo Hugh" on the last page. Unfortunately, the publishers scuppered the plans to publish any more Railway Series books until recently, meaning that Ivo Hugh hasn't had his personality developed.
  • In the Warrior Cats series, Dovepaw and Ivypaw are born at the ending of Sunrise (the last book in the third series), with Jayfeather realizing that one of them is the third cat in the prophecy. Both of them are main characters in the fourth series.
  • City of Heavenly Fire, the last book of The Mortal Instruments introduces Emma Carstairs, hero of the sequel trilogy, The Dark Artifices.
  • Professor Moriarty, supposed to be THE nemesis for Sherlock Holmes is introduced only in The Final Problem, originally written by Sir Arthur Conan Doyle as the definitive series ending. Holmes got better, though.
  • Animorphs does this with The One, the mysterious entity that absorbs Ax and leads the others to the Bolivian Army Ending.
  • Harry Potter and the Deathly Hallows: Several characters who were born during the nineteen-year Time Skip between the climax and the epilogue.
  • Dying of the Light has Kirak Redsteel. A poet unconnected to any of the main players, he is oft-mentioned but never seen until the last chapter when a white-bearded old man strolls up to muse on some long dead Old Kavalar poetry. And he's even nice enough to arrange duels.
  • Theo Waitley was introduced into the Liaden Universe in the final chapter of what seemed like the final novel of the series, as part of an And the Adventure Continues ending. After a break of several years, the authors found a new publisher for a couple of novels about Theo, and the series has been going strong ever since.

     Live Action TV  
  • iCarly had Carly and Spencer's father appear near the end of the series finale. He had been away on an extended leave with the United States Air Force.
  • Little House on the Prairie:
    • The final two episodes of Season 9 introduced two new characters that were possibly intended to become regulars, with the hopes the show would have been renewed for a 10th season. Alas, that wasn't the case, and aside from appearances in the three follow-up movies (which comprised the unofficial "10th season"), there was virtually no time to flesh out and truly develop their characters. Those characters, by the way, were:
    • Rachel Brown, who marries Willie Olesen in the second-to-last original episode, "May I Have This Dance." Had the series been renewed, their stories would have revolved around her learning to get along with her mother-in-law (the dastardly Mrs. Olesen) and becoming part of the town. A "newlywed" story was dedicated to her and Willie in the finale, "Hello and Goodbye" (which aired the following week), but from there her appearances were fairly limited in the follow-up movies, as more time was spent on Albert and Charles (in the two non-Christmas movies), and on Laura and Almonzo (in the holiday flick).
    • Sherwood Montague, the eccentric Englishman who settles in Walnut Grove in the final 60-minute episode, "Hello and Goodbye." Undoubtedly, his plots would have involved the clashes of culture and adjusting to life in small-town Minnesota. His time is limited in "The Last Farewell," although he does make a sizable appearance in "Bless All the Dear Children" (a plot centering on his cynical attitude toward Christmas softening, thanks to little Jason Carter).
  • Jonathan Strange & Mr Norrell has the Raven King, John Uskglass show up in a non-speaking (but important) role in the final episode. A painting of him was scene in a previous episode and he was mentioned in nearly every episode but only showed up in person for the last.
  • Smallville: With its constant rumours of being cancelled, it has a lot of these. Covenant, last episode of season three, had Kara Zor-El who turned out to be a fake. Commencement (season 4) had Brainiac in the form of a black ship. Vessel (season 5) had General Zod. Phantom (season 6) had Bizarro. Doomsday (season 8) had Major Zod (long story). Prophecy (second to last episode of entire series) had several evil extras who do absolutely nothing just like Superman IV: The Quest for Peace: Solomon Grundy, Captain Cold, Black Manta.
  • Power Rangers:
  • In 24, the character of Morris (Chloe O'Brien's ex-husband) is introduced in the Episode 23 of Season 5.
  • Several of the Doctor's regenerations in Doctor Who take place at the end of a series. The ones to debut right at the end of a series are the Fourth, Fifth, Tenth, Eleventh and Twelfth Doctors. (The Second Doctor is sentenced to forced regeneration at the end of season 6, but we don't see the Third Doctor until the beginning of the following season in 1970) Although the new Doctor is technically the same individual, in terms of personality and actor he's fundamentally a new character.
    • Also, while she wouldn't become a regular for another couple of years, Donna first appeared at the end of the Season 2/28.
  • Ryan on Joan of Arcadia, who would have played a big role in the third season, had there been one.
  • On Angel, Gunn, Fred, and Connor were introduced in the last three to four episodes of the season before the one in which they were bumped to main character.
  • During the final episode of the Metal Heroes series Space Sheriff Gavan, the baddies are ganging up on Gavan and are about to win when a new Sheriff suddenly pops up to even the score. He turns out to be Sharivan, the new hero of the upcoming sequel show Space Sheriff Sharivan, which would start airing the next week. Also, surprisingly, he would turn out to be a character that had been featured before. A previous victim of the day who had been sent to the Sheriff planet for treatment several eps before and forgotten about.
  • On Lost:
    • Ana Lucia had a flashback cameo in the first season finale before returning in the second episode of the second season as a regular.
    • Jacob's appearance at the end of Season 5 also qualifies. Lost actually does this a lot during season finales, even with locations and situations rather than people, in part due to the disjointed order of the narrative.
  • The last two episodes of Season 1 of Desperate Housewives gave a glimpse of the Token Minority Applewhite family moving in, implying that they'd get more focus in Season 2 (sort of happened) and perhaps become permanent members of the cast (definitely didn't happen).
  • Kamen Rider Kiva: Wataru's son comes to interupt Nago and Megumi's wedding to warn them of the Neo-Fangire. Four Riders and three Monsters Kick ensue!
  • Molly Evans, aka Trudy's daughter in Monk.
  • In The Prisoner, two entirely new characters were introduced in the last episode to make the already Gainax Ending even more of a Mind Screw. They were played, however, by actors who'd already appeared on the show (in wildly different roles, and pretty much unrecognisably).
  • Bobby Singer was only introduced in the final episode of Supernatural season one, and proceeded to stick around forever.
  • Stargate SG-1's Jonas Quinn showed up in the last episode of season 5 and became a main character next season.
  • Teased, but ultimately averted (because Real Life Writes the Plot) in That '70s Show. Charly was introduced towards the end of the seventh season as a future Suspiciously Similar Substitute for Eric, but as the actor had landed another role before the season eight premiered, his character was unceremoniously killed off and was only seen in flashbacks in the season 8 premiere episode.
  • In Charmed, Chris was introduced in the final two-parter of the season five. He was a regular character during season six.
  • True Blood has done this in every season; in the last couple of episodes new characters and tiny bits of new storylines are introduced, this is of course a Cliffhanger in disguise as they know another season is coming. This often leads to rage from fans because, well, Waiting Sucks.
  • Percival was introduced in the last episode of season three of Merlin. And season four does it again, introducing Tristan and Isolde in the first part of the season finale. Tristan survives, but Isolde is killed in the second part's battle.
  • Zaf was introduced in the last episode of season three of Spooks and became a regular for the fourth series.
  • The third season finale of Holby City introduced the new ward sister, Chrissie Williams. She has been on the show more or less continuously ever since, making her the show's longest serving character.
  • The final episode of Ultraman introduced Zoffy, Ultraman's superior officer from Nebula M78. Zoffy goes on to become a key recurring character in subsequent Ultra shows and movies.
  • Mike gets introduced in the last episode of Breaking Bad's second season and becomes a regular in the next season.
  • Gossip Girl: Ivy Dickens was introduced as a guest character late in the show's fourth season and her true identity wasn't revealed until the final episode of the season. She would return as a regular the next season thanks to the departures of two other cast members.
  • The season two finale of The Neighbors introduces a new human family that moves into the neighborhood after all the Zabvronians except the Bird-Joyner Kershees have left, hinting at a change of format for the show. Unfortunately, the show wasn't picked up for a third season.
  • Grimm's Season 1 ended with the reveal of the identity of the huntress who was stalking Akira throughout the episode (and kicked his ass): Kelly Burkhardt, single mother and legendary Grimm:
    Kelly: Nick, NICK, NICK, CALM DOWN. It's me.
    Nick: Mom?!
  • 2point4 Children had the last episode of Series 7 introduce Declan, a homeless child whom the Porters foster after their daughter leaves for university.
  • The Season 2 fall finale of Gotham features a stinger in which we see an innocent man getting chased into an alley by an unknown assailant. Eventually, it's revealed that the man chasing him is none other than Mr. Freeze.
  • The Grand Finale of Downton Abbey introduced Bertie's mother Mrs Pelham as a last-minute obstacle to the match between him and Edith.
  • The final episode of The Wizard introduced H.E.N.R.I. VIII, a robot that Simon had created. Simon clears the robot of murder, and the last segment has H.E.N.R.I. talking about how he's going to cook, clean, and go on adventures with everyone. Had there been a second season, he would have been a regular character.
  • The last scene of the third season finale of The Big Bang Theory introduced us to Amy Farrah Fowler, who became a series regular in he following season.
  • How I Met Your Mother's titular mother, while mentioned throughout the show's run, does not make a proper appearance until the Season 8 finale. The Reveal of her name does not happen until a season later during the last minutes of the Grand Finale.
  • Game of Thrones:
    • Hot Pie and Lommy Greenhands make their debut in the Season 1 finale. Jaqen H'ghar also debuts here, though the one who will reappear later is implied to be a different character wearing the same face.
    • Ternesio Terys was introduced during the Season 4 finale.
  • Arrowverse:
  • The Walking Dead:
    • Michonne makes her debut in the Season 2 finale.
    • Gareth makes his debut in the Season 4 finale.
    • Negan makes his debut in the Season 6 finale.
  • One Tree Hill:
    • Peyton Sawyer's biological mother makes her debut in the Season 2 finale.
    • Jamie, Nathan and Haley's first son, makes his debut in the Season 4 finale.
    • Lucas and Peyton's daughter makes her only appearance in the Season 6 finale.
  • Jessica Jones: District Attorney Samantha Reyes makes her debut in the Marvel Netflix shows in the season finale of Jessica Jones before having a recurring role in season 2 of Daredevil.

    Professional Wrestling 
  • Estonian Thunder Frog, Latvian Proud Oak and Lithuanian Snow Troll: The Baltic Seige, whom only had one match in Chikara before it died. However, they played an important role in helping Icarus revive the promotion during the Ashes angle running through Wrestling Is.

     Video Games  
  • Although calling it the last "episode" is not quite accurate, in Super Smash Bros. Brawl's story mode, The Subspace Emissary, Sonic the Hedgehog makes his first appearance at the last possible second, showing up in the cutscene immediately preceding the final boss.
  • While he's briefly mentioned early on, King Mickey Mouse never actually turns up until the ending sequence of the first Kingdom Hearts. Also, Roxas's first appearances were in The Stingers for Kingdom Hearts and Kingdom Hearts: Chain of Memories. A similar thing happened with many of the new Kingdom Hearts: Birth by Sleep characters, first appearing in The Stinger for Kingdom Hearts II.
  • The iOS Games port of The World Ends with You adds an extra image after the credits showing a completely new character. Given that part of the game's staff worked on the aforementioned Kingdom Hearts, many think the new character will pop up in a sequel.
  • Jade Empire: Death's Hand can be recruited 5/6 of the way through the game if you are a Magnificent Bastard.
  • Super Mario World has a... pretty active Rom Hack community. With this said, one of them, "The Essence Star", near-unanimously considered to be one of the best, has been slightly criticized by one reviewer because it's a bit "anime-like". By "anime-like", the reviewer meant there are too many characters appearing late in the game... indirectly referencing this very trope.
  • Brave Young Layna shows up in Soul Nomad & the World Eaters for only a few maps (storyline ones at least, not counting the random dungeons) when Revya and co. arrive in Drazil.
  • Fire Emblem:
    • In Fire Emblem: Blazing Sword, the final character available doesn't appear until the final chapter.
    • In Radiant Dawn you get the Game Breaker Laguz Royals for the last part of the game and if you fulfil the requirements, you can get Sephiran for the final battle.
    • In Shadow Dragon, the final character available either joins in the last chapter or, if you fulfill certain conditions, the secret level right before it. (If the latter joins you, the former does not appear.)
  • In Mass Effect 3, The Catalyst plays this role, much to the irritation of the fanbase.
  • In the original Metal Gear Solid, Jim Houseman, the Secretary of Defense and the person who authorized Solid Snake's mission, only appears during a CODEC call prior to the game's final boss fight with Liquid Snake.
  • Five Nights at Freddy's 4:
    • Being the final game in the titular series, introduces Nightmare in Night 7. Some theorise, however, that he may be (an incarnation of) Shadow Freddy from the second game, but nothing outright confirms this.
    • Though the protagonist's really mean brother is seen in other cutscenes, his three friends don't appear until the cutscene if you survive Night 5.
  • The all-important Madeline Bergman doesn't make her first appearance in Metroid: Other M until right before you've beaten the final boss, and she doesn't tell the player who she is until after the boss is dead. At which point she unloads a whole truckload of new plot exposition and character motivations. This is considered by most to be one of Other M's bigger missteps in the story department.
  • The final chapter/episode of Harvest December ends with the introduction of the children of the two main heroines.
  • The very last scene of Liar Liar 2 introduces Nao. She is a childhood friend of Yukari's that reveals Yukari has always been Ax-Crazy and has killed everyones she's ever dated since elementary.

     Web Original 
  • The Most Popular Girls in School: A mysterious new character named Jenna is introduced in the final scene of the second season finale. Intended to be the villain of the third season.
  • RWBY does this extensively to build hype for the next season.
    • In Season 1, Penny and Sun Wukong both debut in the final two episodes, while The Stinger reveals two new villains, Emerald and Mercury, and shows Cinder properly for the first time.
    • In Season 2, Velvet's team-mates Coco, Fox and Yatsuhashi show up for the first time in the finale. While Adam appeared in Blake's trailer, and had been mentioned previously, he makes his first true appearance at the very end, while The Stinger reveals the identity of the character who'd saved Yang's life in the penultimate episode: Raven Branwen.
    • In Season 3, Yang's father Taiyang makes his first true appearance in the finale, as does Weiss' father in a brief cameo. Keeping up the series' tradition, the end of the episode reveals the identity of the narrator from the very first episode: Salem, the Bigger Bad of the series.
  • Nyan~ Neko Sugar Girls has a Minimalist Cast of three major characters with two re-occuring ones. The finale randomly introduces Raku's old friends from college for no real reason.

     Western Animation  
  • Batman: The Brave and the Bold's finale features Ambush Bug as the guest hero, despite him never having appeared in the show before.
  • Ben 10:
    • Cooper from the original series. Presumably didn't have a greater role than one guest appearance in the sequel series because he was generally disliked by the fandom.
    • Since "Secret of the Omnitrix" is technically the real Grand Finale of the first series, Azmuth also qualifies.
    • The final episodes of Alien Force and Ben 10: Ultimate Alien introduced Ultimate Swampfire and Ultimate Way Big. Ultimate Alien plays this straight, as Ben receives a new Omnitrix at the end of the episode that (According to Word of God) does not possess the evolution function, meaning Ultimate Way Big will never be seen again.
  • In Chowder, there is his apprentice, Scraps.
  • Averted in the finale of the Nickelodeon run of Doug. While the main character spends most of the episode trying to finally see what his principal, Mr. Butsavage, looks like, by the end of the episode, he barely misses seeing the principal give a speech, but stops worrying about it and finally starts celebrating the fact that he's graduating.
  • In Ed, Edd 'n' Eddy, Eddy's brother shows up in the climax of The Movie. Up until then, he was only mentioned by other characters.
  • In Transformers: Beast Wars:, Tigerhawk shows up in the episode before the two-part series finale. He doesn't make it to the sequel series, Beast Machines, having died going toe-to-toe with a warship. He might not really count given his being a fusion of Tigatron and Airrazor though.
  • The multitude of new characters appearing in the three-part series finale of The Transformers. Of course, it turns out that it was going to be the premiere of a fourth season, but reworked into a series finale when the plug was pulled on the show at the last second. Similarly, the Constructicons first appeared in the final episode of the first season, "Heavy Metal War", and the Throttlebots in the two-part finale of the third season, "The Return of Optimus Prime".
  • Transformers Prime has Darksteel and Skylynx, two Predacons created just before the finale.
  • Young Justice was Screwed by the Network and Left Hanging, which is why the series ends with the appearance of Darkseid.
    • Averted with the revival of season three, which places a heavier focus on Darkseid and The New Gods.
  • Wolverine and the X-Men suffered a similar fate, which is why the series ends with the appearance of Apocalypse.
  • The Grand Finale of Kim Possible has Warhok, a Darth Vader Clone and the greatest threat Kim and Ron ever faced.
  • The final two episodes of Timothy Goes to School were all about a new cat-girl in Hilltop School named Juanita. While she did recur a bit in some of the picture books, this introduction was all that was seen of her on the television series, which was canceled after its second season.
  • The final episode of The Wuzzles sees a new Wuzzle named Tycoon moving in and befriending the main characters. While the series didn't make it to a second season, Tycoon did live on in the toy line, getting his own plush toy and storybook.
  • The Series Finale and Halloween Episode of The Grim Adventuresof Billy And Mandy, Underfist: Halloween Bash, we are introduce to the evil marshmallow bunny Bun-Bun. Given one of the title cards at the end, he might have made a return of some sort, had the special become a series like it was supposed to.