* White Mage from ''Webcomic/EightBitTheater''. It didn't take.
* [[spoiler:Dr. Schlock]] from ''Webcomic/SluggyFreelance'', though he'd been straddling the fence for quite some time, anyway.
* [[spoiler: Otra]] appears to be doing this in ''{{Girly}}'', shown [[http://girlyyy.com/go/698 here]].
* [[spoiler: [[Music/TheProtomen Panther]]]] in ''WebComic/DeadOfSummer'' does this in a very scary scene, first by [[spoiler: [[EyeScream tearing out Dr Light's eyes]] and killing him,]] then by [[spoiler: declaring Doug Fetterman will be the new leader]].
** [[spoiler: [[SubvertedTrope Though not really]], as it's an [[EvilTwin evil clone]] of him as part of Fetterman's EvilPlan.]]
* Sebastian Jalek in ''TrueVillains'' does this in the first Saga. He tries to not regret it.
* In ''ZebraGirl'', Sandra turns evil after being dragged into hell by [[WellIntentionedExtremist Professor Broadshoulders]]. [[EvilFeelsGood She's having fun now.]]
* In ''Webcomic/TheAdventuresOfDrMcNinja'', Dr. [=McNinja=] is having trouble battling the evil [[spoiler:Frans Rayner]], because all the [=McNinja=] clones (long story) are triggering ConservationOfNinjutsu. So the GenreSavvy doctor does the only thing he can -- [[spoiler:''team up with Frans and start taking the clones out himself''.]] Yes, FaceHeelTurn as a fighting tactic. [[spoiler: The clones were going to die either way, and Doc would have died with them if he hadn't changed sides. Besides, he went back to Face when there were no more clones, because ConservationOfNinjutsu was no longer in effect (and Rainer would have killed him had he stood quiet).]]
* ''Webcomic/{{Homestuck}}'':
** [[spoiler:Eridan]] from does this after deciding that the fight against Jack Noir is completely hopeless [[spoiler:and as the "Prince of Hope" he believes he is the most qualified to determine if all hope is lost. He figures the only chance for survival is to pledge his loyalty to Jack. He then proceeds to K.O. Sollux, kill Feferi, and finally kill Kanaya (while destroying the key to restoring the Troll race) when they try to stop him before he escapes.]]
** And then, not long after, [[spoiler:Gamzee runs out of [[NoMedicationForMe sopor slime pies]] and becomes sane, which causes him to remember his destiny as a murderous Subjugglator, and is later seen working for Caliborn/Lord English.]]
** Much later on, [[spoiler: Aranea turns from a helpful MsExposition to a WellIntentionedExtremist]].
* Ellen of ''Webcomic/ElGoonishShive'' shortly after her creation. Fortunately Dan [[HeelFaceTurn scrapped the idea of her staying evil]].
* In ''Webcomic/ToPreventWorldPeace'', Kendra's future would have involved becoming a DarkMagicalGirl. She decides to prevent this by choosing a FaceHeelTurn instead. This was not precisely what the future-seer intended when she warned Kendra about it . . .
* Synn from the ''Webcomic/TheLawOfPurple'' performed one of these before the start of the comic. It didn't take very well, tho, since it took little more than a few words from his old best friend before [[HeelFaceTurn Heel Face Turning]] back.
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