* ''FanFic/DungeonKeeperAmi'' features the Unraveller of Mysteries, one of a pantheon of dark gods hostile to Ami (So far she has encountered the god of martial force, the god of undeath/necromancy, the god of vermin; the Unraveller seems to be the dark god of mad scientists). It should come as no surprise that the Unraveller has such a huge following: the author has admitted that she was written with the voice of GlaDos in mind.
* Three background ponies from ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' - Lightning Bolt, Cloud Kicker and Medley - had little screen time and almost no lines in the show. In ''Fanfic/AceCombatTheEquestrianWar'', they are a part of a [[TheSquad heroic]] [[BadassCrew squadron]] and become a CommunicationsOfficer, PluckyGirl and LittleMissBadass respectively.
* None can deny the glory that is Jim, from ''[[http://www.fimfiction.net/story/20405/Fluttershy%27s-Bad-%26quot%3BHare%26quot%3B-Day Fluttershy's Bad "Hare" Day.]]''. [[spoiler: He died for our sins.]]
** Someone even wrote an [[http://xtheredmagex.deviantart.com/#/d51xu61 epic ballad]] for him. Not bad for a random squid who shows up out of nowhere [[spoiler: and immediately gets killed off]].
* ''FriendshipIsWitchcraft'' gives us Sweetie Bot, who has become one of the most recognizable characters and even has her own Tumblr.
* Yawning Squirtle and Boulder-Dropping Whale in ''Webcomic/{{Sonichu}}'', and Mary Lee Walsh, who is frequently the protagonist in various fanworks, and is drawn deliberately with a [[MsFanservice different design.]] This is mainly because many find that her real-life basis is actually pretty awesome. Plus, it ticks CWC off.
** Bill the Scientist also qualifies for this, since he's also one of the Moon Pals.
* Most ''Franchise/MetalGear'' fans who've seen ''Fanfic/MetalGearSolidPhilanthropy'' report little interest in [[DesignatedHero Solid Snake's]] mildly OutOfCharacter behaviour, but absolutely love [[OriginalCharacter Pierre Leclerc]]. He has a decent-sized EstrogenBrigade, is popular with JournalRoleplay, and gets fanfic written about him.
* Brother-Captain Allen of ''Fanfic/TiberiumWars'' - stoic, calm, quiet, efficient, scary, and perfectly willing to [[spoiler:mutilate rapists and then hurl them out windows.]] Its no surprise that such a bit character has become so liked.
* ''[[http://www.fanfiction.net/s/5706942/1/MWDC_Harry_Potter_and_the_Guardians_Light Harry Potter and the Guardian's Light]]'' gives us THE INDOMITABLE ARGUS FILCH. In the novels, he's a slightly scary background character. In the movies, he ranges from [[LovesTheSoundOfScreaming creepy]] to disgusting or comic relief. But in this fanfic, his first scene involves him arming himself alongside [[spoiler:ComicBook/{{Hellboy}} and [[ComicBook/{{Hellblazer}} John Constantine]]]] to go into the black forest and fight an army of trolls. Turns out, while he's not a janitor he turns a profit selling enchanted weapons. After he helps demolish the trolls with ease, we next see him tracking Harry down in his invisibility cloak despite not knowing it's Harry, or that he's in an invisibility cloak. Recently, [[spoiler:Voldemort invaded the castle with an army of trolls]] and Filch was first on scene. His response was to ask them for a hall pass. He then ducked around a corner and they traded some fire. He was ordered [[spoiler:BY VOLDEMORT]] to surrender. His response to that was to blow a troll's brains out, and say; [[CrowningMomentOfAwesome "Alright, I surrender, now come a little closer!"]] [[BadassNormal It's easy to see why Dumbledore trusts this man to clean his school's floors.]]
* ''WebVideo/DragonBallZAbridged'' has Nappa. In the actual series he was a bland GiantMook that was killed relatively expediently, but in ''Abridged'' he is quite possibly the funniest character in the series, and the fans loved him for it, to the point where [[spoiler:he got to reappear several times as a ghost]].
** There is also popularity upon Super Kami Guru, Nail, Dodoria, Zarbon and The Ginyu Force (Specifically Recoome - these guys even got their own opening between Episodes 19 and 23.).
* The moment Rocky and Adam stepped foot into ''Fanfic/OfLoveAndBunnies'', the story became almost as much about them as it did the ''Series/MightyMorphinPowerRangers'' and ''Series/PowerRangersDinoThunder''.
* ''Fanfic/WarriorsTheAbridgedSeries'' (the abridged series of ''Literature/WarriorCats'', not something else), the most popular characters are Bluestar, Redtail, Matthias and Rainstorm. Redtail and Matthias each only appear in one scene. [[spoiler: Well, there is [[ShoutOut Ghost Redtail]], but then again, Redtail gained his popularity before that segment. And Ghost Redtail leaves when he realizes Tigerclaw doesn't like him.]]
* While she was included mainly to intentionally avert the RonTheDeathEater treatment the character often gets, Ember in ''Fanfic/TheLegendOfSpyroANewDawn'' has been very well received by readers for being a kindhearted, friendly version of the character. This is part of the reason she ended up having ADayInTheLimelight chapter were she [[spoiler:defeated TheDragon of Empresss Tyrania, the BigBad of the Gargoyle StoryArc, to save her father herself, instead of ending up a team boss fight as originally intended.]] This also enabled the writer to give her more character growth and an excuse to TakeALevelInBadass, so it worked out in more ways than one.
* [[MemeticBadass Brian Hahnel]] and Joan's dad (named [[{{fanon}} Hugo]] by those on TwilightSucks) were originally minor characters in ''Fanfic/BrewdeningLove'', a Literature/{{Twilight}} fanfic. Then the TS snarkers started [[HoYay shipping them]], and [[FanFic/BrewdeningLoveExpandedUniverse the rest is history.]]
* ''Webcomic/BeTheSeaDwellerLowblood'''s OriginalCharacter of Cuvier seems to be getting this treatment. It's pretty much become a {{meme|ticMutation}} among the forum fans to photoshop his [[IconicItem iconic half-glasses half-]][[CoolShades shades]] onto photo manips, avatars, etc.
* Bentley the crazy {{Adorkable}} hyena from the {{Rango}} fanfic Snakes With Guns is easily one of the most lovable [[OriginalCharacter OC]]s in the {{Rango}} fandom.
* In the ''Fanfic/TheWizardInTheShadows'', Emrys Ap Derfel. Originally created, as WordOfGod admits, as an unintentional {{Expy}} of the author and of Harry himself - green eyes, difficult past, great power and destiny, something which has previously been lampshaded, Emrys Ap Derfel was well received. Several plot developments, an epilogue and the start of a sequel, he's developed into a key member of the main cast and WordOfGod has hinted that he'll take over Harry's role as TheHero later on in the ExpandedUniverse.
** Eirian and Miriel are given expanded roles in the sequel (the latter had merely been a throwaway reference before hand) and a third, [[spoiler: Maglor]] is pure SpotlightStealingSquad.
* Yuuka Kazami of Fanfic/ImperfectMetamorphosis was growing to be such a focal point of the plot that the [[Tropers/TakerFoxx author]] ended up having to devote several chapters to a giant brawl between her and Yukari to take them out of the direct action for a while and realign the focus to [[spoiler: Rin and Rumia]]. Being a maniacal, sadistic, overpowered [[TheGadfly gadfly]] tends to have that effect. Being a [[spoiler: [[HPLovecraft Great Old One]]]] doesn't hurt much either.
* The SouthOfNowhere fanfic 'Romance on the Set' has one InUniverse on the show Spencer and Ashley star in. Rachel, a character played by TaylorMomsen was intended to be recurring, but gets promoted to regular due to her popularity and even becomes part of the FanPreferredCouple with the main character
* The ''BridgeToTerabithia'' fanfic "[[http://www.fanfiction.net/s/9326187/1/Unearthing-Secrets Unearthing Secrets]]" has Conrad, the ''very'' British exchange student and Jesse's best guy-friend, due to his realizing Jess and Leslie want to be more than friends before even they do and making frequent and amusing attempts to cockblock Leslie's egotistical RomanticFalseLead whenever he is able.
* Prince Heins of ''Fanfic/FrozenHearts'', largely because he cares a great deal for his brother, [[{{Disney/Frozen}} Hans]], unlike the majority of their brothers [[spoiler:and even after everything Hans has done]].
* Donut in ''WebAnimation/DusksDawn'', or at least he's the ''least'' despised character. Having one of the few somewhat competent voice actors probably helps.
* Ace Ray from ''Fanfic/MyLittleUnicorn''.
* [[AlphaBitch Emiru]] and [[BrattyHalfPint Binbeat]] are the most popular characters in ''FanFic/FutariWaPrettyCureBlueMoon'', the former for being a DarkMagicalGirl and the latter for his backstory and for his many funny moments.
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