* Sonia and Dr. Hart in ''{{lonelygirl15}}''.
* Fair numbers of this happen in ''SurvivalOfTheFittest''. Mostly, it is the result of a 'player' stopping killing their fellows, usually due to a guilty conscience.
** Hawley Faust of the first game, although he was semi-convinced instead of spontaneously deciding to quit.
** Julie Mikan in V3. She set out to actively play, but after killing [[spoiler:Owen Fontaine]] realised she didn't have what it takes and became a heroic character instead.
** Dominica Sharpiro, also of V3. A less conventional example in that she made the switch purely on the chance the escape plan of the group she joined would succeed.
** Sharon Kulikov, similarly to Julie, originally decides to play indiscriminately, but upon realizing that she can't bring herself to do that she resolves to only target other players.
** The most recent example is probably [[spoiler:Bobby Jacks]], although [[AntiVillain he was pretty shaken up about killing other people.]]
** Laeil Burbank, who started off as a vengeful PsychoLesbian, until she pissed off an even bigger player who...[[ColdBloodedTorture decided to]] [[EyeScream have some]] [[KillItWithFire fun with]] [[LeftForDead her]]. After [[BigDamnHeroes she's rescued]], by someone who's best friend she'd killed (though it was a MercyKill), punched in the face, and told that if she ever saw him again, she'd kill him no less, she decides that she's through with being an indiscriminate killer (unfortunately, [[RedemptionEqualsDeath she doesn't survive for very long after that).]]
** [[spoiler: Sarah Atwell]], [[MoralEventHorizon who took part in one of the most horrific murders]] of V4, is now making a bid for redemption through [[VigilanteMan killing other players]] after a [[MyGodWhatHaveIDone shocking]] [[HeelRealization realization.]]
*** [[spoiler: Of course, she ends up dying crying and begging on the floor to not die.]]
* Happens with several characters from the ''DarwinsSoldiers'' [=RPs=], most notably with Hans.
* Possibly ''TheNewAdventuresOfCaptainS'': in the last episode of the first season, NES digs up a Sega Menacer for Captain S to use against Game Genie (NES's former master). Although, the series ended with NES's fate unknown, so his motivation for doing this is just as unclear.
* In most of the ''WebAnimation/MadnessCombat'' shorts, Jeebus is the enemy of the protagonist, Hank. However, in Part 8, he is featured as trying to stop the Mooks and new BigBad.
* [[spoiler:Ralph]] from ''DeadEnds'' pulls one of these when he realizes that [[spoiler:he is hunting down an unarmed teenager and her friend during a ZombieApocalypse because his best friend, Ephram, has gone batshit crazy.]]
* Surprisingly rare in the ''GlobalGuardiansPBEMUniverse''.
** Battle betrayed [[NebulousEvilOrganization Tarot]] to save the life of her son, Stone.
** Gadgeteer villain Knick-Knack retired from his life of crime and became the custodian of the Hyperion Academy.
** The Redeemers are a team made up of former super-villains.
* Gross Sword does this at the end of [[http://www.rogermwilcox.name/ADnD The Sick Kids]], but only because his lawful-good siblings nearly kill him.
* Bogdan from ''Machinima/WaterHuman'' does that after he develops a liking for a prisoner that his partner tells him to kill. He proceeds to attack his own partner.
* Kelly from ''WereAlive'' is easily [[TheScrappy the most hated character]] among both the cast and audience during Season 1, but eventually pulls one of these after her attitude indirectly kills [[spoiler:Tommy]].
* [[AntiVillain Demonking]] does this in ''{{TOME}}''. [[spoiler:Then he becomes bad again, but then ascends again and is currently more of a rival to Nylocke than a bad or good guy.]] [[spoiler:This entire process is subverted when it's revealed the hackers aren't really bad guys anyway.]]
* [[OurDemonsAreDifferent Spiro]] of ''TheQuestportChronicles'' pulls one after refusing to kill a Demon Bunny for his master's dinner. He's banished from his homeland for showing mercy, and ends up as the TokenEvilTeammate in the Fellowship.
** [[spoiler:The King of Thieves and Assassins]] reforms after hearing the Harp of Remorse.
* In ''Roleplay/TheGamersAlliance'', a bunch of antagonists eventually switch sides and become more heroic. Some examples include [[ColonelBadass Dalthas]], [[AntiAntiChrist Jemuel]], [[AntiVillain Kagetsu I]] (he joins the Alliance because they saved his wife, but he still more or less pursues his agenda albeit with different means while being bound by his oath to the Alliance), [[TheAtoner Omaroch]], [[HarmlessVillain Titaniel]] and [[LoveRedeems Viirsa]].
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