History AscendedExtra / AnimeAndManga

Franchises with their own pages:

** Kaiba himself becomes one in the anime version of the Memory World Arc. In the manga after Battle City he's PutOnABus (or in his case, a jet) and only makes a brief cameo in the very last chapter. On the other hand, in the anime he'd already been upgraded from a major supporting character as he was in the manga into the deuteragonist on the show next to Yugi (or tritagonist if you count Yugi and Yami as two characters) and was already greatly involved in just about every filler arc in the series, so the writers probably felt it would be weird if he missed out on the finale. Thus, not only does he wind up dueling Bakura at the beginning of the storyline but eventually he winds up following Yugi and the others into the past as well, ultimately helping [[spoiler: Atem]] take on Zorc and getting a BigDamnHeroes moment by the end.

* ''Anime/GundamBuildFightersTry'' has Yuuma Kousaka, who went from being briefly mentioned as China Kousaka's younger brother in Anime/GundamBuildFighters to being one of the 3 main characters in the sequel.
** There's also Kaoruko "Gyanko" Suzaku, who only had a brief appearance at the very end of ''Build Fighters'' admiring her older brother's newest Gyan Gunpla, only to become a major character in the next season. Time will only tell if her younger brother will show up next series.
* Simply because of the nature of the series, this happens a lot in ''Webcomic/HetaliaAxisPowers''. Examples may include the Nordics, micronations or characters that only have a basic design.
** This is also how the Allies and the more in-the-background-initially nations like Poland, Lithuania, and the Frying Pangle (Austria, Hungary, Prussia) started off.

* Sumomo in ''Manga/SgtFrog'' was, in the manga, a character from a one-shot side story loosely connected to the main comic. In the anime, she was remade into an alien IdolSinger who was taking an impromptu vacation on Earth in her first appearance, and eventually became a recurring character.
** Interestingly, the show seems aware of this, as some characters only appear between long stretches of episodes, prompting the narrator to cheerfully jog the viewer's memory.

* Nanoha Takamachi was formerly a very minor character from ''VisualNovel/TriangleHeart3''. Eventually it was decided to create a MagicalGirl SpinOff series starring Nanoha. Adding a few HumongousMecha-related tropes turned [[Anime/MagicalGirlLyricalNanoha Nanoha and her show]] into a very [[Franchise/LyricalNanoha successful franchise]] [[MorePopularSpinoff that has drastically eclipsed the original in popularity.]]
** Nanoha's daughter Vivio gets her own SpinOff as well: ''Manga/MagicalGirlLyricalNanohaVivid''.
** In ''[=StrikerS=]'', Nove was just a minor member of the QuirkyMinibossSquad. Come ''[=ViVid=]'', she's been promoted to Vivio's CoolBigSis [[BigBrotherMentor Mentor]] and gets the most panel-time out of the old cast (barring Vivio herself).
** Nanoha's [[ThoseTwoGuys two friends Suzuka and Alisa]], and Fate's "older sister" [[PosthumousCharacter Alicia]] become main characters and {{Magical Girl}}s in ''Manga/MagicalGirlLyricalNanohaINNOCENT'', together with Nanoha and Fate. It's a AlternativeContinuity, and the Magical Girls are actually Cyber Magical Girls.

* ''Manga/MobileSuitGundam0083Rebellion'':
** Alice Miller returns from ''Anime/MobileSuitGundamThe08thMSTeam'' in a much larger role. Originally she was just used as a framing device for a flashback episode while in ''Rebellion'' she joins the Albion during the initial pursuit of the GP-02 and works to root out spies. She even serves as a viewpoint character in volume 16 as she works to clean up the fallout from the ColonyDrop and [[spoiler:gets Kou out of prison]].
** Bernard Monsha is a downplayed example. He's introduced much later in this version of the story compared to the original OVA but he has a more defined arc and plays a larger role in the finale. When the manga goes on to depict events that happened after the Delaz Uprising, Monsha takes over as the protagonist for volume 17.
** Dick Allen originally was killed in the second episode of the OVA. In the manga he survives that encounter and takes on Monsha's role in the early story. His arc ends with him having a much more impactful death when he sacrifices himself to stop the Zeon superweapon at Kimberlite.
* ''Manga/MobileSuitGundamTheOrigin'': The manga retells the original MSG story but grants a greater prominence to several characters. The Black Tri-Stars were only in 2 episodes but here they're given major roles in the greater Zeon military, even being some of the first mobile suit pilots. Sleggar Law joins the crew much earlier and helps fight in a number of battles he wasn't originally present for. Job John, a background crew-member, is promoted to a MauveShirt and often fights alongside the major characters. Tachi, a one-off member of Ramba Ral's group, is given a much expanded backstory as having an unrequited crush on Hamon and being key to saving the Deikun children. Finally there's Sayla Mass who, while always important, is essentially the secondary protagonist with the manga exploring her past in great detail and even giving her her own mobile suit.

* Chie Harada was simply one of {{Those Two G|uys}}irls in ''Anime/MyHime'', and a [[MuggleBestFriend close friend who provided emotional and moral support]] to Mai, but didn't have much plot importance. Her ''Anime/MyOtome'' counterpart, Chie Hallard, is a high-profile supporting character, even getting pictured on a DVD cover with Aoi, the royal maid based on one of Chie's friends from the parent series.
** Not to mention Arika and Nina, the two main characters of ''My-Otome'' were practically nonexistent in ''My-[=HiME=]''. They had no lines and minimal screen time--Arika only as a [[EarlyBirdCameo cameo in the finale]], Nina as simply a LivingProp in Mai's classroom. Only Nina had a name and it was in Japanese, only revealed in one of the {{Omake}} that briefly lists the names of everyone in Mai's class.

* Enforced in the first anime of ''Franchise/SailorMoon''. The manga was monthly, but the anime weekly so {{filler}} was required so ''something'' could air. This is most obvious with the various {{Quirky Mini Boss Squad}}s who, due to their larger screen time, were allowed to have more fleshed out personalities then their manga counterparts who tended to be {{Flat Character}}s who were killed off after one battle. Many of them were even [[RedemptionEarnsLife redeemed and given a second chance at life]] or at the very least given [[AlasPoorVillain sympathetic deaths.]]

* ''Anime/SailorMoonCrystal'': [[EliteFour The Shitennou]] were given minor expanded roles in the first arc. Unlike in the manga were all but Kunzite were killed of not long after their introductions all four Generals survive until near the end of the arc [[spoiler:before being vaporised by Queen Metalia [[HeelFaceDoorSlam after being freed from their brainwashing]].]] ''Crystal'' also reveals that, in this adaptation, the Four Generals were involved with Princess Serenity's [[BodyguardBabes Four Guardian Goddesses]] in their past lives which was hinted at by a picture Takeuchi made at the manga's conclusion but never made explicit.

* Shiro Sanada in ''Anime/SpaceBattleshipYamato'': Originally, he was just TheSmartGuy of the ship. And due to the fact that he was a little older than the mostly young crew, it was expected that he would die as is common for mature characters in an ensemble cast of mostly youngsters (so that the young characters can grow and develop). Sanada shares with Kodai the distinction of being the Yamato Sagas two most longeval characters. He reunites with Kodai in the 2010 Yamato Ressurection [[spoiler: in which Sanada now outranks captian Kodai]]. His character is even more developed in ''Anime/SpaceBattleshipYamato2199'' where [[spoiler: he is now the Captain's true first officer as is appropriate for his age and experience. He also has an ongoing romantic interest, something that was totally ignored in the original series.]]
* ''[[VideoGame/StarOceanTillTheEndOfTime Star Ocean: Till the End of Time]]'': Tynave and Farleen are given more screentime and are shown to be [[AdaptationalBadass far more capable]] in the manga adaptation. They even get their very own BigDamnHeroes moment, where [[http://mangapark.me/manga/star-ocean-till-the-end-of-time/s1/v6/c24/12 they save]] [[http://mangapark.me/manga/star-ocean-till-the-end-of-time/s1/v6/c24/13 Fayt and Maria]] from Biwig's trap, at the Shrine of Kadan. Plus, Tynave gets [[ShipTease ship teased]] with Cliff - from staying behind [[http://mangapark.me/manga/star-ocean-till-the-end-of-time/s1/v5/c20/25 to help him fight Albel]], to [[http://mangapark.me/manga/star-ocean-till-the-end-of-time/s1/v5/c20/35 tending to his wounds]] afterward.

* Johnny's old crew (Forecast, Kismet, and Transmit) went from one-panel characters with no lines in ''ComicBook/{{Supercrooks}} to a group that gets to do two low-level heists with Johnny in ''Anime/SuperCrooks2021''.

* In ''Manga/TegamiBachiLetterBee'', Zazie is already a significant recurring character in the manga, but the anime greatly expands his role for the first few arcs, especially in the first season, where the anime includes him in a central role in a few {{filler}} episodes.

* Despite being one of the lesser-known characters of the franchise, Armor was a main character in ''Anime/MarvelAnime: ComicBook/XMen''. This lead to her getting some more spotlight in the comics, such as her major role in the ''Alpha and Omega'' mini-series.

* ''Anime/YuGiOhGX'': Jun Manjoume in the anime is mostly a joke character and getting [[DemotedToExtra more and more forgotten]] as time goes on. However, in the manga, his role is increased significantly and he is [[AdaptationalBadass a lot more badass.]]

** A more recent example is Trafalgar Law, who appeared during the Sabaody Archipelago Arc as a minor character. He later shows up at the end of the Marineford War to aid an out-of-commission Luffy, then after a few arcs, reappears again as a major ally in the Punk Hazard Arc and Dressrosa Arc. Granted, it was hinted that the Eleven Supernovas would have bigger roles to play in future story events, but he practically becomes the {{Deuteragonist}} for a while and has continued to be a major ally all the way into the Wano Arc.

** Similar to Law, this is what happened with Nefertari Vivi. She was originally created as a one-and-done minor villain, but author Eichiro Oda was doodling and drew her with her hair down. He thought she looked like a princess. Since he already had the plot of the Alabasta saga planned out, he decided to retool the character to have a far more prominent role. She ended up becoming the {{Deuteragonist}} of the Alabasta saga and is still considered to be an [[HonoraryTrueCompanion honorary Strawhat]].

* While Link only sees Dark Link in a magical vision in ''VideoGame/TheLegendOfZeldaTwilightPrincess'', he makes a full appearance as an enemy in the [[Manga/TheLegendOfZeldaTwilightPrincess2016 manga adaptation]].

** Likewise, Rin's SitcomArchNemesis Luviagelita Edelfelt made a small appearance in ''VisualNovel/FateHollowAtaraxia'', was only given a passing mention at the very end of ''Anime/FateStayNightHeavensFeel'', and appeared as the LastEpisodeNewCharacter in ''Anime/FateStayNightUnlimitedBladeWorks''. She becomes the CoolBigSis to the secondary main character Miyu and was even given a supporting role in ''LightNovel/LordElMelloiIICaseFiles''.
* ''Manga/NegimaMagisterNegiMagi'' exemplifies this trope. Several characters who barely got any panels per volume to their selves for the first few volumes get entire sub-plots revolving around them. A few examples:

* While Link only sees Dark Link in a magical vision in ''VideoGame/TheLegendOfZeldaTwilightPrincess'', he makes a full appearance as an enemy in the [[Manga/TheLegendOfZeldaAkiraHimekawa manga adaptation]].