[[quoteright:310:[[{{Satan}} http://static.tvtropes.org/pmwiki/pub/images/fallen_hero.jpg]]]]
[[caption-width-right:310: Dang, older than time...[[note]]Or about 1000, 2000, or 3000 years old, depending on who you ask, making it less old, but ''still'' one of TheOldestOnesInTheBook.[[/note]]]]

->''"You either [[HeroicSacrifice die a hero]], or you live long enough to see yourself become the villain."''
-->-- '''Harvey Dent''', ''Film/TheDarkKnight''

Not all {{Villain}}s [[RousseauWasRight are born]]. Some are made, and none are more [[{{Tragedy}} tragic]] than the Fallen Hero. As the name implies, the Fallen Hero used to be a {{hero|es}} before doing a FaceHeelTurn. They may even have been an IdealHero or another equally optimistic [[ArchetypalCharacter archetype]], up until the moment when they [[TraumaCongaLine suffered]] [[FreudianExcuse something bad enough]] for them to [[DespairEventHorizon lose all faith in good and idealism]], be it [[CynicismCatalyst the loss of a loved one]], too many [[NoGoodDeedGoesUnpunished good deeds]] coming back [[BeingGoodSucks to bite them hard]], [[EtTuBrute betrayal]] by [[BigBadFriend someone they trusted the most]], too much [[DividedWeFall distrust from those who should have been allies]], or some other faith-shattering event. It might even be a drawn out process of seduction to TheDarkSide or fall from grace.

What they choose to do about it determines what they become:
* If they [[TheStoic retreat into themselves]] and fight evil mercilessly to dull the pain, they become an AntiHero, though if this fight is motivated by vengeance, they may run the risk of [[HeWhoFightsMonsters becoming like the very monsters they have sworn to destroy]].
* If the loss of faith with humanity and/or society and government makes them decide to [[UtopiaJustifiesTheMeans do something drastic to "fix" it]], they become an AntiVillain - most commonly a KnightTemplar or DarkMessiah.
* Alternately, if they just [[JumpingOffTheSlipperySlope jump off the slippery slope]] and [[OmnicidalManiac embrace chaos and the destruction of humanity]] as [[WoobieDestroyerOfWorlds the only solution to their pain]], they'll become a straight up [[EvilLaugh cackling]] CardCarryingVillain. Especially those who only became a hero for fame and glory, rather than for any good cause.
* Or they'll be like a fusion of the first and second example and decide that killing/destroying everything is the ONLY way to save EVERYONE from the pain/pointlessness of existence, often becoming a StrawNihilist and an OmnicidalManiac.
* They might withdraw from society, become [[TheHermit a hermit]] or [[TheAlcoholic drunkard]], and [[HeroicNeutral ignore the ongoing state of the world]]. If the current generation of heroes meet them, the fallen hero will mock how their deeds are useless. Most likely, however, they will help the new heroes in the hopes that they won't suffer the same fate.

They'll use their not-inconsiderable powers and abilities to do it, too. Often, they'll twist [[HealingHands healing powers]] to evil ends, or allow pain to fester by simply denying the use of their powers for good. Where once the BarrierMaiden wanted to heal the world, she'll now spread misery to [[ApocalypseMaiden speed its destruction.]] TheMessiah who wanted to save the world now [[TheAntiChrist wants its damnation.]] TheGunslinger, once wanting to bring justice to the frontier, now wants nothing but vengeance and blood. Many of these made the [[ProtagonistJourneyToVillain protagonist's journey to villainy]].

Usually revealed in a NotSoDifferent moment. Almost always gets a StartOfDarkness, and often implicates a BecameTheirOwnAntithesis. Christopher Booker's [[TheSevenBasicPlots sixth basic plot]], {{Tragedy}}, uses this character arc, with the Fallen Hero as main character. Compare FaceHeelTurn, TheDarkSideWillMakeYouForget. See also FallenAngel, TragicMonster. SuperTrope to TheParagonAlwaysRebels, in which the character has such influence over other good guys that they fall with him or her. When the Fallen Hero used to be a main character in a previous work, they're a RogueProtagonist.
----
!!Examples

[[foldercontrol]]

[[folder:Anime and Manga]]
* Gendo Ikari from ''Anime/NeonGenesisEvangelion'', as once [[spoiler: Yui dies, he retreats into himself and becomes a DarkMessiah]]
* ''Anime/YuGiOhGX'': Judai's HeroicBSOD causes him to transform into the villainous Supreme King once he decides to use evil's methods to fight evil itself, complete with a literal gaggle of Fallen Heroes (evil versions of his normal Elemental Heroes).
* In ''Anime/YuGiOh5Ds'', Rex Godwin qualifies. [[spoiler: Before he became the tyrannical head of Security, he was the legendary Mysterious D-Wheeler who tried to build the Daedalus Bridge and connect Satellite to Neo Domino, hoping to free the residents of Satellite from the oppression of the upper class. But Security had other ideas. When they tried to arrest him, he drove his D-Wheel off the incomplete bridge, vanishing, becoming a martyr to everyone who followed him. In a sense, when he became a Dark Signer, he was a WellIntentionedExtremist, who sought to put a stop to the conflict between good and evil that seemed doomed to repeat itself endlessly. When he was [[KilledOffForReal finally defeated]], the Daedalus Bridge was completed as a modern bridge, and stands as a symbol of the man he once was.]]
* Nina from ''{{Mai-Otome}}'' takes this to its literal extreme. At first, she was the top student in her class with a promising life ahead of her, and then [[LoveMakesYouEvil she went crazy when she thought that Arika was trying to steal the man she loved]]. From there, she [[spoiler:accidentally killed one of her best friends when she turned out to be TheMole, and purposefully killed tens of thousands more to prove her devotion]], ending with her reputation in tatters, [[spoiler:him on his deathbed, and the memories of the two of them ever having met lost forever]], and a loss in the final battle that ends with her ''[[SpaceDoesNotWorkThatWay falling from outer space]]''.
* Sensui from ''Manga/YuYuHakusho''. [[spoiler:Was a Spirit Detective, and a damn effective one, until he saw [[HumansAreTheRealMonsters the Black Black Club torturing demons for their own amusement]], got his hands on [[PostHistoricalTrauma Chapter Black]], and went [[NietzscheWannabe insane with the desire to get rid of all of humanity]].]]
* ''{{Pretear}}''. Along with [[spoiler:the revelation that the Princess of Disaster is the current form of the last Prétear, Takako]], the show also plays with the possibility that [[spoiler:''anyone'' who becomes the Pretear could become the Princess of Disaster. Which naturally leads Himeno Awayuki, the current Prétear, straight into a HeroicBSOD while she sorts it out.]]
* Jyu Viole Grace from the second season of ''TowerOfGod'', the identity of the grown-up [[spoiler: former hero and WideEyedIdealist 25th Baam from season 1]]. After being betrayed and nearly killed by the person he looked up to and trusted the most as well as experienceing several other traumatizing events he grew frustrated from the system that fulfilled some people's dreams while crushing the last hopes of many other. As a result, he joined the fanatical religious crime syndicate FUG, known enemies of the Zahard monarchy, making himself a public enemy. He became an AntiVillain, destroying other peoples dreams and aspirations as he trained himself to kill the King and his retainers, many of whose relatives he had befriended in early years.
** [[spoiler: Not really he was blackmailed into it by the FUG. They basically are threatening to kill all of Viole's friends if he doesn't work for the FUG]]
* In ''GGundam'', Gentle Chapman was one of the most admired Fighters ever, but [[spoiler:after old age and an illness caught up with him, he could only win via cheating (perpetrated without his knowledge by his wife). He paid for it by dying...and was revived as a zombie by the Devil Gundam.]]
** Master Asia also falls under this. He was formally a part of the Shuffle Alliance, a group that was devoted protecting humanity from self destruction, and [[TheHero Domon Kashu's]] mentor. [[spoiler:But during the previous Gundam Fight, he saw how badly the Fight damaged the Earth and blamed humanity for despoiling their homeworld so carelessly. After meeting the Devil Gundam, he joined its plan to wipe out humanity, believing that it was the best path for life on Earth to survive.]]
** Also Devil Gundam. It was built as nanomachine colony to restore Earth's environment, but Ulube wanted to use it as a weapon. When it escaped to Earth, the impact messed with its A.I and turned it into an EldritchAbomination.
* ''{{Gundam 00}}'''s BigBad, [[spoiler:Ribbons Almark]], seems like this, considering that [[spoiler:he was a Gundam Meister who piloted the very first Gundam in the series.]] It's actually a subversion, as he was never a hero. [[spoiler:The intervention when he saved Setsuna had no glorious goal beyond a field test of the 0 Gundam, and he was supposed to kill all witnesses. He only spared young Soran Ibrahim because he saw the devotion in the young soldier. And this incident triggered his god complex, leading him to become the BigBad.]]
* Gale Raregroove, Pumpkin Doryu, and Captain Hardner in ''RaveMaster''.
* [[spoiler:[=LordGenome=]]] of ''Anime/TengenToppaGurrenLagann'', who was Simon's predecessor. [[spoiler:[[EternalRecurrence One of them, anyway]].]]
** Same goes for [[spoiler:Guame]], who is ''Boota's'' predecessor.
* Griffith of ''{{Berserk}}'', once the closest thing the general universe had to a hero, but who is now [[spoiler:[[DarkMessiah the fifth member of the demonic Godhand, Femto]]]].
* In ''[[PrettySammy Magical Project S]]'', [[spoiler:the third candidate, Romio]], was a former magical girl [[spoiler:from Earth]], but she was unable to maintain the Good-Evil Balance. Because of this, she became bent on destroying Earth.
* In ''RevolutionaryGirlUtena'', [[spoiler:Dios]], aka Akio, shows what happens when the PrincelyYoungMan turns into one of these.
%%* ''GaReiZero'': Yomi [[MemeticMutation ;_;]]
* ''Transformers Armada'': Has Wheeljack. Depending on who you talk to, Starscream could also be considered as this.
* In ''Manga/{{Naruto}}'', [[spoiler:Nagato, aka Pain]] was born with a special power that marked him as a literal [[TheMessiah messiah]]. Inspired by the words of his childhood friends and mentor, he desired to bring about a lasting peace. However, [[spoiler:his pacifistic attempts left his friend Yahiko dead and him crippled]], shattering his dream. So, he set out to create a new peace, [[spoiler:by [[DarkMessiah sharing the pain that he had suffered]].]]
** [[spoiler:Hanzo]], his predecessor as the leader of [[spoiler:the Hidden Rain Village]], also started off with good intentions before he became a CrazySurvivalist.
** Sasuke Uchiha [[ProtagonistJourneyToVillain also becomes one of these over the course of the story.]]
** Belive it or not, even [[spoiler: Orochimaru]] qualifies. Although he'd die before admitting it, there was a time, before his defection, when he legitimately cared about his teammates and fought on behalf of his village. After seeing many people die in war, he became obsessed with gaining immortality and [[JumpedOffTheSlipperySlope lost any sense of ethics]].
** [[spoiler: Obito Uchiha soon after his "death" became [[BigBad Tobi]].]]
* [[spoiler:Oskar Von Reuenthal]] in ''LegendOfGalacticHeroes''. Particularly tragic, since he did not rebel against [[spoiler:Reinhard Von Lohengramm]] out of genuine malice or ambition, but because he was framed and was too proud to accept punishment for a crime he did not commit. His death is arguably the most senseless and undeserved in the entire series.
* ''Manga/UbelBlatt'' has a number of these, similar to the Overlord example further down the page. 14 heroes go to fight the Dark Lord. On the way there, 3 die heroically, and upon the entrance of the Evil Lair, 7 of the survivors get cold feet and stay behind. The other 4 go to defeat the villain, winning with great difficulty. Returning home, those heroes get ambushed by their former comrades and are bloodily murdered. They go on to become the "Seven Heroes, who defeated the Dark Lord and the '4 Lances of Betrayal'". The 7 Lances end up going insane with power, [[VillainWithGoodPublicity but can get away with anything because of their hero status.]] Though one of the 4 is back and wants revenge.
* ''{{Claymore}}'' has plenty of these since every warrior is doomed to [[EvilFeelsGood eventually succumb]] to her SuperpoweredEvilSide. However, the one who fits this trope the best is [[spoiler: Priscilla]] — once a gifted young warrior and WideEyedIdealist, she is now the terrifyingly powerful BigBad.
* The BigBad of ''Manga/{{Drifters}}'' is heavily implied to be this. Well, he's actually implied to be [[spoiler:Jesus Christ]] turned OmnicidalManiac. Plus, some of the Offscouring can qualify - Joan of Arc becoming a [[KillItWithFire homicidal pyromaniac]] after being burned at the stake, for example.
* Aga Mbadi from ''BattleAngelAlita: Last Order''. He was once a renowned hero around the solar system for hunting down a dangerous terrorist. After [[spoiler: being forced to watch the only woman he ever loved slowly die in his arms and acquiring his insane nemesis's brain chip]], he has turned into a ManipulativeBastard and NietzscheWannabe who considers everyone but himself lower than dirt.
* ''Anime/PuellaMagiMadokaMagica'' has not only one, but ''two'' Fallen Heroines. In fact, the story is arguably about the StartOfDarkness for one of them. [[{{Deconstruction}} Yeah, it's that kind of story]]. And while we don't see their StartOfDarkness, it turns out that [[spoiler:''every single witch'' aside from former familiars was once a magical girl]].
** And in ''Anime/PuellaMagiMadokaMagicaTheMovieRebellion'' [[spoiler: the movie's protagonist [[ProtagonistJourneyToVillain becomes the series's]] [[SatanicArchetype new devil figure]].]]
* After [[HeelFaceTurn having his alignment changed]] by the effects of [[spoiler:Nirvana]], it emerged that [[spoiler:Hot-Eye of the Oracion-Seis]] was one of these. He originally [[spoiler:just wanted to raise enough money to fund a search for his lost brother, Wally]], but seemed to have gotten corrupted by his team mates somewhere along the line. After all is said and done, he calmly accepts incarceration for his deeds while he was a villain, after finding out that [[spoiler:the Fairy Tail guild members had met Wally not too long ago]], and declares himself happy with the knowledge that [[spoiler:he's alive and well]].
* Berserker, [[EveryoneCallsHimBarkeep dubbed "Black Knight"]] in ''LightNovel/FateZero'', [[spoiler:revealed in the final battle (by KingArthur ''[[GenderBender herself]]'', no less) to be Lancelot.]]
* Jinno from ''Anime/AfroSamurai''. He was Afro's best friend as they trained together for years, but one night under the Bodhi Tree, he witnessed all of his friends and fellow pupils killed by bandits, and then Afro coldly murdered their master to obtain the No. 2 headband. He blames Afro for everything that happened, and had his ruined body fitted with cybernetics to turn him into a formidable warrior. Before Afro can challenge Justice, he has to fight past his childhood friend.
* Lady Flair in the ''Anime/DirtyPairFlash'' universe, a Former WWWA agent and predecessor to the Current Lovely Angels who after a mission goes bad and felt betrayed went on to become an assassin , but makes an heroic sacrifice after realizing the truth of what happened.
[[/folder]]

[[folder:Comic Books]]
* In ''TheDCU'' series ''Justice League Task Force'', the hero, Triumph, was lost for decades in a time warp, and returned to join the Task Force as its leader. His difficulties in adapting to the new times, added to the desertion of Martian Manhunter and Aquaman from the TF's ranks (which caused the government to close it down due to the ''real'' Justice League returning), ended with him broke and being harassed by common thugs. With the help of a HeroicBSOD and a pen that contains a powerful genie, he wreaked havoc and mentally dominated his former allies into fighting the JLA. When he failed, he was frozen [[AndIMustScream screaming]].
** It's worth pointing out that it's HEAVILY implied that Triumph is being influenced by the genie, and therefore arguably not this trope. Also, he sees the error of his ways and repents shortly before being frozen. And, in the interest of completeness, there's also the point espoused by his [[WordOfGod old writer]] that the inadvertant loss of his soul (long story) left him NotHimself.
* Interestingly, an alternate future shows Triumph's [[VitriolicBestBuds best friend, the Ray]], becoming one of these, with Triumph himself and the Flash (Bart Allen) as the only two heroes left, trying to keep him under control...[[GoKartingWithBowser while still being best friends and hanging out to watch sports and such.]]
* About a million alternate future stories depict either Franchise/{{Batman}} or Franchise/{{Superman}} as this, frequently with the other one trying to pull them out of it.
* ''ComicBook/TheLongHalloween'', the series that inspired Nolan when he was writing the script for ''Film/TheDarkKnight'', has a Harvey Dent that worked alongside Franchise/{{Batman}} and Commissioner Gordon. [[spoiler:We later find out that Harvey may not have even been responsible for some of the deaths, it may have been his wife trying to end all the terror that was happening and trying to get Harvey to come back. A closer inspection reveals plot holes with this revelation, and it's vague whether she did it or was just crazy.]] This is only one version of ComicBook/TwoFace's origin, but all the ones worth mentioning show him as working with Batman before turning into Two-Face.
* Both {{Sinestro}} and, later, his ArchEnemy, Hal Jordan, are GreenLantern Corps members who turned evil. Sinestro wanted to enforce order, so he became a KnightTemplar dictator of his home planet, Korugar. Years later, after seeing his home city nuked, among other things, Hal [[FreakOut Freaked Out]] and destroyed the Green Lantern Corps and tried to remake the universe. Hal was later {{retcon}}ned into being possessed by the AnthropomorphicPersonification of fear itself, and Sinestro was influenced by a demon telling him a prophecy that Korugar would destroy itself if order wasn't enforced.
* At the beginning of Creator/KevinSmith's ''Comicbook/{{Daredevil}}'' run, Karen Page was stuffed into a fridge. Then, Creator/BrianMichaelBendis took over and his identity was exposed to the public, and eventually, he was incarcerated for obstruction of justice. After beating the rap, his new wife, Milla, suffered a psychotic breakdown and the marriage dissolved (Matt cheating on her with Dakota North happened in between). By the time Lady Bullseye started to kill his closest allies to resurrect them as zombie ninja slaves, Matt finally said "screw this" and abandoned his life as Matt Murdock to become leader of the Hand. Though still a TechnicalPacifist, the crossover ''ComicBook/{{Shadowland}}'' might soon change this as Marvel is now promoting Daredevil as the new "greatest super-villain of the Marvel Universe".
* ''ComicBook/AstroCity'' has El Hombre, an {{Expy}} of Franchise/{{Batman}} from Los Angeles. Though he became prominent in the super-hero circle, he became upset at his lack of respect from the populace and his love interest's marriage to someone else. [[spoiler:He then hired a super-villain to build a robot to attack the city so he could stop it in a high-profile fight. He was betrayed by the villain, and when it was later revealed that El Hombre commissioned the attack, he became a wanted fugitive and disappeared into his civilian identity.]]
** Decades later, he tries a similar ruse, [[spoiler:killing low-level supervillains to unite their ilk against him, eventually gathering them all in one place, and wiping them out in his ''new'' heroic identity as El Guerrero]]. His former sidekick, Bravo, while being ashamed of El Hombre's actions, still holds a great deal of respect for the great man and the hero he once was.
* ''Shakara'' - the BigBad responsible for most of the destruction has recently been revealed to be [[spoiler:Cinnibar Brenneka]].
* Richard Dragon, most famous for being the best martial artist in the DCU, was one of these for a while until Bronze Tiger dragged him out of it.
* [[AntMan Hank Pym]] becomes one of these (usually of the retired variety, but occasionally the AntiVillain version) every couple of years when something bad happens to Jan and/or Ultron does something horrible that he blames himself for.
* {{Magneto}} [[HeelFaceRevolvingDoor jumps around]] between this, AntiVillain, AntiHero, and WellIntentionedExtremist.
* ComicBook/BlackPanther was one of these (of the retired/bitter variety) at the end of Christopher Priest's run, but this development, and the [[SoapOperaDisease fatal brain aneurysm that caused it]], were both ignored by subsequent writers.
* ComicBook/{{Superboy}} Prime. He begins his career [[ComicBook/CrisisOnInfiniteEarths battling the Anti Monitor]], the DC Universe's greatest threat, and is immediately forced into Limbo with his home universe destroyed. After years in Limbo, he returns, convinced that Earth's heroes are screwing it all up and ultimately decides that this universe needs to be replaced by a better one.
* ComicBook/{{Supergirl}}, specifically the Linda Danvers incarnation, may or may not qualify. At the end of her own series she was forced to send to the ''original'' Supergirl back to her own reality, where she was DoomedByCanon. This left Linda broken and she promptly gave up the costume. A later series has her end up in Hell off-panel, but it's considered to be FanonDiscontinuity.
* ''ComicBook/{{Irredeemable}}'' centers around The Plutonian, a Superman-like superhero who snaps violently after a long and thankless career and proceeds to become the irredeemable BigBad set to obliterate the world that he once protected. Inversely, there's the spin-off ''Incorruptible'', which focuses on former Supervillain Max Damage who, in the wake of The Plutonian's rampage of destruction, decides to [[HeelFaceTurn become a hero]].
** Irredeemable is written by Creator/MarkWaid, who co-created Triumph (mentioned above), and has confirmed that a lot of the original ideas behind Triumph (who Waid wrote very little of) ended up in Irredeemable.
* ''SinCity'' has [[spoiler: Jack Rafferty]], who was once a hero cop but eventually degraded to the level of an alcoholic BastardBoyfriend. WordOfGod states that his story will eventually be told.
* In ''ComicBook/AllFallDown'', [[spoiler:Pronto]] gradually becomes this for the climax.
* ''ComicBook/MyLittlePonyFriendshipIsMagicIDW'': [[spoiler:Rarity, who succumbs to the Nightmare Force's MoreThanMindControl to become their new queen. She returned to the good guys' side at the end of the Nightmare Force arc though.]]
[[/folder]]

[[folder:FanFic]]
* In the ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' alternate continuity ''FanFic/LegendsOfEquestria'', this role is filled by Princess Celestia, who slowly goes mad from the anxiety of having to constantly watch out for threats to her reign, and the psychological trauma of [[spoiler: her internal struggle with the dark magic she accepted in order to live forever and create the cutie mark spell]].
** Princess Luna also falls victim to this, as she becomes the KnightTemplar Nightmare Moon, hoping to put an end to the excesses and abuses of freedom that her sister has caused. In the end, [[spoiler: Celestia decides to eliminate her sister rather than accept her help with ruling the kingdom]].
* In the Pokemon fanfic FanFic/{{Pedestal}}, [[spoiler: Nick]] becomes one of these after [[spoiler: learning that his brother was killed.]]
* In the WesternAnimation/JackieChanAdventures fanfiction ''FanFic/QueenOfAllOni'', Jade becomes this after a spell reawakens her Queen of the Shadowkhan persona.
** In the second half of the story, [[spoiler: Jade kidnaps Viper and performs a ritual that transforms her into [[TheDragon Hebi]], the new General of the [[EliteMooks Samurai Khan]], and [[BrainwashedAndCrazy conditions her]] to be [[UndyingLoyalty utterly loyal]] to Jade.]]
* [[Franchise/HarryPotter Harry]] in ''FanFic/TheDarknessSeries''.
* The ''Fanfic/PonyPOVSeries'' has a number of them. The first we see is in "Epilogue", a BadFuture [[TheBadGuyWins where Discord won]]. The Mane Six have been turned into his immortal CoDragons and now do his bidding, at ''best'' having no idea they were once heroes like Twilight Tragedy and Rarigreed and at worst knowing they were but [[BeingEvilSucks having no way to escape their fate]]. Though Liarjack still remains somewhat heroic, as she does her best to save lives, but she still has done horrible things like [[spoiler:helping kill [[HeroAntagonist Queen Cadance]]]]. Thankfully, the Dark World Series finally sees them [[HeelFaceTurn rise again.]]
** Then there's the second BigBad, [[spoiler:Nightmare Whisper, [[BewareTheNiceOnes Fluttershy's]] SuperpoweredEvilSide born when she couldn't bare the cruelty in the world and tried to fix it, turning into a WellIntentionedExtremist and trying to conquer the world and ''force'' it to be nice. In the end, she's purified with the Elements and becomes TheAtoner.]]
** [[spoiler:Nightmare Mirror, Applejack's AlternateSelf who became a Nightmare after her Applebloom didn't escape the events of StoryOfTheBlanks, turning into a truth obsessed MultiversalConqueror intending to rid the multiverse of deceit. Thankfully, Applejack manages to team up with five other alternate versions of her (including Liarjack, now back to Applejack) to purify her with the Elements of Harmony, then Applejack and Orangejack convince her to turn good again. The same journey also shows Nightmares of Rainbow Dash and Pinkie Pie called Nightmare Manacle and Nightmare Granfalloon respectively.]]
** One alternate universe shows the Harmony Queens, a version of the mane six who went Knight Templar, overthrew and [[SealedGoodInACan imprisoned Celestia and Luna]], and took over the world eradicating anything they viewed as Disharmonic and brainwashing ponies in mass with the Elements. According to WordOfGod, they're based off the Justice Lords from the ''WesternAnimation/JusticeLeague''.
** Finally there's [[spoiler:Nightmare Eclipse/Paradox, the true BigBad of the Dark World Series. She's a potential [[FutureMeScaresMe future version of Twilight]] who went Nightmare to take revenge on Discord for what he did. She then become [[HeWhoFightsMonsters She Who Fights Monsters]] and trapped Discord in a GroundhogDayLoop, erasing ''billions'' from existence each loop to feed her grudge and not even caring anymore so long as he suffers.]]
* Gentaro in ''FanFic/{{Horseshoes and Hand Grenades}}'', having been placed into a MoreThanMindControl situation from Ophiuchus. [[spoiler: Ryusei also becomes this, due to Tachibana brainwashing him and converting him into a cyborg in an 'attempt' to fix all the mistakes he did.]]
* Two-thirds of the [[WesternAnimation/MyLittlePonyFriendshipIsMagic Mane Six]] descends into villainy in the backstory to ''FanFic/FalloutEquestria'', set during the war between Equestria and the zebra nation. Twilight Sparkle becomes an amoral MadScientist and EvilutionaryBiologist obsessed with finding a way to turn normal ponies into alicorns, Rarity experiments with dark magic and creates propaganda that encourages hatred against zebras, Pinkie Pie becomes a drug-addled psychopathic torturer who runs the Equestrian equivalent of the [[Literature/NineteenEightyFour Ministry of Love]], Rainbow Dash becomes a BloodKnight GeneralRipper obsessed with her own martial prowess and kill count, and Fluttershy [[spoiler: passes military secrets to the zebras out of a misguided sense of kindness, directly leading to Equestria's destruction.]]
** Also [[spoiler: Red Eye]]. Everything we see of his backstory points to him being an expy of the Lone Wanderer, but by the time he appears in the story, he's fully into WellIntentionedExtremist territory and willing to do [[AGodAmI absolutely anything]] to save the wastes.
* The Fierce Deity is stated to be this in [[FanFic/BoundDestiniesTrilogy Blood and Spirit]]. It is revealed that he was once the chosen hero of Termina's guardian goddess, Terminus, just as Link is to Zelda/Hylia. He fought Majora and won, only to end up being corrupted into what he is now. Terminus has Din, Nayru, and Farore send Link and Zelda to Termina to help and after Link has weakened the Fierce Deity, she and Zelda use the Song of Healing in an attempt to restore him to his former self; unfortunately, by that point, he has been far too corrupted by Majora to be saved, and is instead converted into the Fierce Deity's Mask. Though heartbroken over the loss, Terminus is nonetheless comforted by the knowledge that at least her hero is finally free from Majora's control.
* Rainbow Dash in [[Fanfic/RocketToInsanity Rocket to Insanity]].
* ''FanFic/MegaManDefenderOfTheHumanRace'' has Mr. Black, who was once a top FBI agent.
[[/folder]]

[[folder:Film]]
* Harvey Dent in ''Film/TheDarkKnight'' definitely counts, after he becomes Two-Face. Formerly idealistic, he grows steadily more cynical in the face of [[spoiler:the Joker's crimes and, after the Joker's BreakingSpeech, turns into a NietzscheWannabe who believes that Chance is the only fair law.]]
* [[spoiler:Kirsty Cotton]] in ''Film/HellraiserHellseeker''.
* ''[[Film/{{Transformers}} Transformers: Dark of the Moon]]'': [[spoiler: Sentinel Prime, by virtue of Face Heel Turn. He made a deal with the Decepticons that would restore their home planet of Cybertron]]. Additional material establishes Megatron as this. Before the Great War, he was the Lord High ''Protector'' of Cybertron, ruling equally with Optimus.
* Anakin Skywalker of ''Franchise/StarWars'', who got three whole movies of StartOfDarkness.
** Skywalker may have been the most infamous Jedi to turn evil, but he was hardly the only one. Count Dooku, the villain in ''Film/AttackOfTheClones'', was once a member of the order too, and ExpandedUniverse books often feature "Dark Jedi" as villains, many of whom were formerly real Jedi, who are too numerous to list.
* Madmartigan, the master swordsman in ''Film/{{Willow}}'', qualifies for the "lost himself in dissipation" version of the trope.
* Creator/RobertDowneyJr's character in ''Film/{{Zodiac}}''
* According to supplementary materials, Pitch Black from ''Film/RiseOfTheGuardians'' was this. He represents fear, and [[DarkIsNotEvil originally protected children]], since there are many situations where FearIsTheAppropriateResponse. Unfortunately, he eventually went completely overboard with this, and by the time the movie takes place he's a CardCarryingVillain.
[[/folder]]


[[folder:Literature]]
* Saruman in ''Literature/TheLordOfTheRings''.
** ''TheSilmarillion'': Fëanor. He was the mightiest, most skilled, most puissant of all the Elven race... and the source of their greatest woes. Also a major case of YouCouldHaveUsedYourPowersForGood.
*** Morgoth is a fallen Valar and this universe's equivalent of {{Satan}}, which as noted above is one of the oldest examples there is, so he counts. Sauron too, he used to be a Maia which were like angels.
* Ineluki, the Storm King of TadWilliams' ''MemorySorrowAndThorn'', started out as a hero of the Sitha, but he took his people's racist tendencies to the extreme and, when Asu'a was sacked, he turned from defending his people to killing everyone else. Also an example of MotiveDecay.
* In the ''TheBelgariad'', Zedar, TheDragon, used to be Belzedar, one of Belgarath's sworn brothers and a servant of the god Aldur. When Torak, the BigBad of the series, struck Aldur and stole the Orb, Zedar headed out to confront him...and found himself overwhelmed by Torak's power. Faced with TheDarkSide, he gave in to his barely-suppressed lust for power and swore fealty to Torak.
* Gerald Tarrant[[spoiler:/The Hunter]] in the ''Coldfire'' trilogy. Sorcerer, philosopher, and Prophet of the One God, until the religion he had created excommunicated him, at which point, he killed his wife and children as a part of a [[DealWithTheDevil bargain with Dark Powers]].
* In the ''Dilvish, the Damned'' stories by Creator/RogerZelazny, it's stated that the BigBad Jelerak used to be good many hundreds of years ago. But he crossed the MoralEventHorizon long ago.
* Marth in the ''Literature/HeirsOfAsh'' books, complete with also being Tristam's ForWantOfANail EvilCounterpart.
* ''Literature/TheDresdenFiles''
** [[spoiler:Agent Denton]], who is also HeWhoFightsMonsters. When Harry soulgazes him, he sees that he used to be a genuinely good man, but his methods (most notably, his use of [[spoiler:the Hexenwulf belts]]) made him just as bad, if not worse, than the people he's trying to take down.
** The Corpsetaker was once a member of the White Council.
* Crudgeon in Literature/ArtemisFowl was [=LEPrecon=]'s golden boy and best friend of the DaChief. In book 1 AmbitionIsEvil put him in a TraumaCongaLine and he became one half of the BigBad of book 2.
* ''TheKingkillerChronicle'' has Lanre, who was once a great hero but went mad with grief when he was unable to use his power to resurrect his beloved.
* [[spoiler: Hollyleaf]] from ''Literature/WarriorCats'' eventually becomes this, when [[spoiler: her love of the warrior code makes her turn murderous.]] But then [[spoiler: she has a HeelRealization.]]
* Satan in ''ParadiseLost'' was once a glorious angel, but he falls from grace and becomes evil. In the story, he's ironically given the trappings of an epic hero, [[WrongGenreSavvy which he clearly believes he is]].
* [[spoiler:Kalthused]] of ''Literature/WithinRuin''. He starts out as a heroic leader fighting for the independence of his country but when [[spoiler: his wife Ankaa dies]] he falls into a spiral of despair. He forsakes all his old morals and plunges the country into futile wars for centuries in order to [[spoiler: [[AlwaysSaveTheGirl bring Ankaa back to life]]. ]]
* By the end of ''Literature/{{Animorphs}}'' [[spoiler:Jake]] has become one of these. It's stated in the epilogue that the only reason he's not being tried as a war criminal is because he fought for the side the won the war.
* Literature/TrappedOnDraconica: Pre-series [[spoiler: Kazebar]] was Draconica's number 1 humanitarian. To reward his good work [[spoiler: Dronor granted his son the power to travel between worlds, believing that if any human deserved this honor it would be Kazebar's family line.]] Whether he was tempted by this power or if he was EvilAllAlong is not made clear.
* David Gemmell loves subverting this trope. Waylander is a war hero. Then his family is slaughtered, and he makes sure none of the assailant "takes less than an hour to die", and finances his vengeance by becoming a professional killer. Then he seeks redemption, gets it somehow, his family gets killed again, vengeance ensues, redemption again, and then he dies a stupid death by the hand of the son of the man whose death was the reason for his first face heel turn toward good. Gemmell does not like black and white.
* Luke Castellan from ''Literature/PercyJacksonAndTheOlympians''.
* Brittney Donegal from the GONE series.
* Donald from Sukhinov's ''Emerald City'' series.
* ''Literature/TheGirlWhoCircumnavigatedFairylandInAShipOfHerOwnMaking'': [[spoiler:The Good Queen Mallow]] became the Marquess due to her anger at being returned to the mundane world. She still considers herself the hero.
* Many of [[QuirkyMinibossSquad the Forsaken]] from ''Literature/TheWheelOfTime'' were this. Demandred, Sammael, and Be'lal were all great generals on the side of Light (and all three of them turned to the Shadow out of rivalry with the Light's ''other'' great general, [[TheChosenOne Lews Therin Telamon]]); Graendal was a famed ascetic who went bad after deciding that no one could possibly measure up to her extreme moral standards; Ishamael was considered the greatest philosopher and theologian of his age, but learned one too many ThingsManWasNotMeantToKnow and [[GoMadFromTheRevelation went mad from the revelation]], becoming in essence TheAntichrist. Subverted with Semirhage, who though a renowned healer was always a sociopath and sadist deep down and turned to the Shadow early on upon realizing that the Dark One would let her use her talents in [[ColdBloodedTorture ways]] that society would never accept.
[[/folder]]

[[folder:Live Action TV]]
* [[spoiler: Buredoran/Brajira]] from Series/TensouSentaiGoseiger. [[spoiler: It's revealed that he used to be a Gosei angel who turned on the rest of his team and stole there powers killing them. He uses an experimental power to travel 10,000 years into the future to enact his grand plan to remake the world and become it's messiah and savior.]]
* Jon Mitchell from ''BeingHuman''. He tries hard to fight his vampire urges and tries to be an example of reform, but [[spoiler: he falls off the wagon in season 2 and slaughters a train of 20 people. He never really gets back to normal after that and commits suicide.]]
* Willow Rosenberg of ''Series/BuffyTheVampireSlayer'' became the CardCarryingVillain version of this trope after witnessing [[spoiler:the death of her girlfriend]]. Magic high also leads to her becoming this. Luckily, the transition was temporary in the TV series. There was also an Alternate Universe book trilogy (''"Wicked Willow"'') that explored what would have happened if she had stayed that way. The canonical Season 8 comic books state she is still this; specifically the "Time of Your Life" arc. In the season nine comics we learn that while she is holding it together around Buffy, Willow is hell bent on bringing magic back, believing the world is going to end and she has to save it. Faith also took the CardCarryingVillain route after accidentally killing a human, also temporary-ish (though its acknowledged in-universe that her actions while she was a villain went too far to just be forgiven and forgotten).
* ''Series/{{Angel}}'' plays it straight with Daniel Holtz, season three's BigBad. He was once a force for good, but Angelus and Darla destroyed his life, slaughtered his family, and reduced him to a [[RevengeBeforeReason revenge-driven]] monster. At his best, he is a NobleDemon, at his worst he's a petty old man willing to sacrifice the lives, happiness, and even sanity of people who love him in order to have his revenge.
* ''Series/{{Heroes}}''
** Linderman. His low-key, evil approach is made all the more monstrous when viewers realize that, having the ability to heal most injuries, he chooses to have people killed, kidnapped, and crippled instead.
** Adam Monroe. He is introduced as Takezo Kensei, the ''literal'' hero of legend. Despite trouncing all the fantastic tales attributed to him in one fell swoop, Kensei proves himself a true hero many times over during his time with Hiro - only to do a FaceHeelTurn when Hiro steals away the woman he loves right out from under his nose. Four hundred years later, his heartbreak has driven him to seek a 'second chance' by [[WoobieDestroyerOfWorlds wiping out 93% the world's population.]]
* In the French fantasy dramedy ''Kameloth'', the Knight Lancelot start out as the noble and charismatic hero we expect him to be, but he has always been ideologically opposed to the libertarian policy of Arthur (who he considers a proof of weakness) and considers himself more worthy of the holy mission given to his king. After the spoofed-legend-opposed-got-away-with-Guinevere-part, he [[spoiler:openly rebels against Kameloth's order and became the tool of a dark sorcerer named Melangeant, who presents himself as {{The Chessmaster}}ing ''answer of the gods'' to Arthur's failure in his mission]]
* Eli David in ''Series/{{NCIS}}'' seems to be this. In a way, he's reminiscence of [[LordOfTheRings Denethor]].
* Some of the best episodes of ''Series/{{Scrubs}}'' deal with this happening to Dr. Cox. While the fall is temporary, the sight of the normally caustic and extremely confident physician in tears is very heartrending, to say the least.
* LexLuthor from ''Series/{{Smallville}}'' is a great example. He started off as nothing more than a good Samaritan friend to Clark Kent. As time went on, he became nastier and more cynical at the world, and possibly became Clark's worst enemy. However, how long would the show actually last if Luthor was kept a good guy throughout the entire show?
* In ''ChinesePaladin'', [[WarriorMonk Jiang Ming]] was TheParagon of Mt. Shu, on track to become the BigGood before it's revealed he's having an affair. He snaps when ordered to kill his lover, [[OmnicidalManiac massacres the entire population of the mountain]], and becomes a vengeful ghost who, a hundred years later, is so powerful none of the monks dare enter the Demon Pagoda.
* Stefan Salvatore on TheVampireDiaries, especially in season three, is an example of this.
* [[spoiler: Jack Bauer]] in ''Series/TwentyFour''. First seven seasons? Someone who pushed himself ten times beyond the brink both physically and mentally to repeatedly ensure the safety of the country and world. Final season? After his latest mission winds up going horribly wrong and ends on a tragic note, he winds up embarking on a personal crusade of [[RoaringRampageOfRevenge revenge]] that ultimately causes an international crisis and nearly instigates a war that would lead to the deaths of millions of innocent people, just barely stopped himself after [[HeelRealization realizing]] how bad those repercussions would be. Rivaling him would be [[spoiler: Tony Almeida]] who went from protecting people to threatening them all to avenge the murder of his wife... [[spoiler: and unlike Jack he never had a HeelRealization.]]
* [[spoiler: The War Doctor]] in DoctorWho becomes this due to the horrors of the Time War.
[[/folder]]

[[folder:Music]]
* The titular ''Iron Man'' (no, not [[IronMan that]] one) from Music/BlackSabbath's song. Though they made him a villain in order to avoid lawsuit, [[HilariousInHindsight ironically enough]], the song was used in the 2008 Film/IronMan movie.
* [[Music/TheProtomen Proto Man]]. Possibly VideoGame/MegaMan too.
[[/folder]]

[[folder:Multiple Media]]
* The [[BrotherhoodOfEvil Brotherhood of Makuta]] from ''Franchise/{{Bionicle}}'' were a group of militaristic biologists who created all animals in the Matoran Universe to preserve natural balance, and were later assigned to govern over various regions of the Universe along with the local leaders. Due to their secretive nature and ElementalPowers of shadow, the society began worshiping [[PhysicalGod Mata Nui]] and the Toa heroes over them, even after their armies had just saved the Universe. Thus, they grew envious, and a glitch in their A.I. caused them to turn evil, with Teridax overthrowing the old Makuta leader and becoming the story's BigBad.
[[/folder]]

[[folder: Mythology, Folklore, and Religion]]
* ''Literature/TheBible'':
** ''Revelations'' shows {{Satan}} as a fallen angel. This is OlderThanFeudalism, as the popular depiction has roots in the 2000+ year old source material.
** King Saul; initially portrayed as a humble, God-fearing man, he makes some bad choices, undergoes (demonic-induced) madness, and ends his reign as the arch-enemy of the man God chose to succeed him.
** King David: farmer, harp player, and faithful to God until he becomes king. Then he spies on a naked woman and puts her husband in the front lines of battle just so he can marry her.
*** Surprisingly and hilariously, the kids' show Veggie Tales parodied this story.
* ''NorseMythology'':
** [[TricksterArchetype Loki]] [[DeadpanSnarker Laufeyson]] (you know, the bad guy in ''Film/{{Thor}}'' and ''{{Film/The Avengers}}''), the blood brother of Odin and best friend and GuileHero sidekick of Thor, started off as a light hearted comic relief of sorts, with something of a running gag in the stories of him being threatened with death by the other Gods (sometimes in retaliation for a prank, sometimes because they're just jerks like that), then his attempts to fix everything resulting in him suffering some form of mutilation or humiliation (from having his mouth stitched closed to being raped and impregnated by a giant horse), but he remained loyal to Asgard, but eventually, his humiliations and repeated sufferings, combined with the fact that the God's didn't particularly care for him that much, made him bitter and resentful, until coming to a head when they imprisoned him on a boulder (chained up by [[KickTheDog his own son's]] [[{{Squick}} entrails]]) with a giant serpent dripping venom into his eyes. Once free of this FateWorseThanDeath, Loki lead the enemies of Asgard against the Aesir, dying in battle against Heimdall, but in doing so, brought about the EndOfTheWorldAsWeKnowIt.
** What makes this even more tragic is that this aspect is often left out in adaptations, where Loki ends up becoming the Norse equivalent of a standard bad guy. Since Loki's FaceHeelTurn happened right before he died, many later versions of the Norse tales have him instead being a real asshole who constantly screws over the others. In fact, the original reason Loki was chained to the boulder was retconned, so instead of being because he insulted them all at a party they didn't invite him to (he wasn't invited so they could talk about him behind his back) was instead because he arranged the death of Baldur (something he merely claimed to do in order to wind them all up), with no party or comments involved.

[[/folder]]

[[folder:Professional Wrestling]]
* HulkHogan's infamous FaceHeelTurn and transformation into Hollywood Hogan in {{WCW}}'s ''Bash at the Beach'' was born of the realization that he was "old news", and that the fans he had lived his whole life to please weren't really interested in him anymore, which he just couldn't stand. After all, he's Hulk Freaking Hogan, the biggest icon in wrestling! Maybe the fans didn't ''deserve'' to cheer for him! Maybe they deserved to have him and his buddies from [[Wrestling/{{WWE}} up north]] destroy everything about WCW that they enjoyed instead!
* Similarly, ChrisJericho's recent Wrestling/{{WWE}} FaceHeelTurn was fueled by the fans' continued cheering for ShawnMichaels -- who was not only a lying, cheating hypocrite, but was unrepentant for having retired the great RicFlair. In Jericho's mind, it's not him that turned heel; it's the fans.
* Speaking of [[ShawnMichaels HBK]], he's been this several times (all versions at different points), including presently.
** Specifically, he was the outright villainous version during his initial turn after turning on Jannetty, the anti-hero version for parts of the initial [[DGenerationX DX]] run, the anti-villain in his crusade against HulkHogan, and the retired/disinterested version during his various retirements and sabbaticals.
* Subverted with BretHart in 1997, who only turned against the American wrestling fans, but was still considered a hero in the other territories.
* StoneColdSteveAustin's character was defined by his drive to become the WWF Champion "at all costs". Usually, this just meant that Austin would theoretically work harder than everyone else to get it. His Face Heel Turn came out of taking that to the logical extreme, where he allied with his perpetual nemesis, VinceMcMahon (and his rival, TripleH, the next night...who tried to ''kill'' him in the past), at the now-famous ''Wrestlemania X-7'', to guarantee he would leave the event as WWF Champion.
* When [[DwayneJohnson The Rock]] fought heel Hollywood Hogan at ''Wrestlemania X8'', he unexpectedly got a lot of boos and "Rocky sucks!" chants (he was also booed at the last Wrestlemania, but that was against Stone Cold in Texas, so it's understandable). Given how popular The Rock is supposed to be, it came as a shock that people would boo him over the heel, Hogan. The Rock later used this as partial reasoning for turning heel the next year where he defeated both Hogan AND Austin in back-to-back PPV's.
* MickFoley was probably the most famous "hardcore" wrestler during his stint as Cactus Jack, due to his runs on {{WCW}} and his Death Matches in Japan with Terry Funk. However, when he made his FaceHeelTurn in {{Wrestling/ECW}}, he cited the fans' expectations of the wrestlers (and their desire to see wrestlers put themsleves in increasingly dangerous situations) as the reason he turned on Tommy Dreamer, the heart and soul of ECW. He then began his "anti-hardcore" gimmick where he became a WCW-shilling, non-hardcore butt boy for Eric Bischoff, everything ECW fans ''hated'' in wrestling.
* ChrisBenoit was at one time considered arguably one of the greatest wrestlers of all time but his claim as one of the greats has all but been erased due to the events of [[PaterFamilicide the last days of his life]].
[[/folder]]

[[folder:Tabletop Games]]
* The Blackguard class from ''DungeonsAndDragons'' is specifically designed for fallen heroes, allowing the player to "trade in" Paladin levels for Blackguard levels after completing a FaceHeelTurn. However, while the character may not have been planning on the transition, the player almost always is; the Blackguard class has pre-requisites that don't make sense for most Paladin builds. The idea is that a character won't go straight from Paladin to Blackguard, but will instead "fall" as a Paladin (losing all their Paladin-specific abilities but retaining their raw stats) and then choose to [[FaceHeelTurn pursue the path of the Blackguard]] instead of redemption, summoning an evil outsider to [[DealWithTheDevil teach them how to do so]]. The most awkward pre-requisite for a fallen Paladin is still the five ranks in Hide, however.
* ''[[TabletopGame/YuGiOh Yu-Gi-Oh]]'' gives us the [[http://yugioh.wikia.com/wiki/Gigobyte Gigobyte]] / [[http://yugioh.wikia.com/wiki/Gagagigo Gagagigo]] / [[http://yugioh.wikia.com/wiki/Giga_Gagagigo Giga Gagagigo]] / [[http://yugioh.wikia.com/wiki/Gogiga_Gagagigo Gogiga Gagagigo]] cards, which describe a young troublemaker who has a HeelFaceTurn upon having his [[http://yugioh.wikia.com/wiki/My_Body_as_a_Shield life saved]], and in trying to gain enough power to help repay his debt, he acquires [[http://yugioh.wikia.com/wiki/Level_Conversion_Lab cybernetic upgrades]] which eventually [[CyberneticsEatYourSoul eat his soul]] and drive him mad. It's a surprisingly detailed story told not only in the flavor text of his own cards, but in illustrations for other cards that otherwise have nothing to do with him. It's only natural that his story gets played out in one of the video games. Said video game had him realising the error of his ways. This almost certainly qualifies him for FaceHeelRevolvingDoor.
** [[http://yugioh.wikia.com/wiki/Gagagigo_the_Risen And now]] HesBack, recovering his heroic soul and getting new armor that lets him keep the power he was searching for.
* While there are many in ''MagicTheGathering'', the one that stands out the most is Crovax. When the love of his life (an angel) died, he ended up going over to [[BigBad Yawgmoth's]] side to get her back. [[TheCaptain Gerrard Capashen]] [[NotSoDifferent followed for a similar motive]], but realised that it was a con and ended up [[HeroicSacrifice giving his life to take down Yawgmoth]].
** Glissa Sunseeker fought against [[MadScientist Memnarch]] to save Mirrodin. Awesome, yeah? Too bad that it directly resulted in her [[AndThenJohnWasAZombie becoming a Phyrexian]].
* TabletopGame/{{Warhammer 40000}}. Exactly half of the Primarchs turned against their father the Emperor of Mankind in the great betrayal of the 31st millennium. Each of the ten traitors had a personal reason for turning their back on their father. None are more tragic than TheParagon Horus the Warmaster (i.e. the Emperor's second-in-command, since he was the Emperor's favourite son).
** The [[UltimateEvil Chaos Gods]] showed Horus a vision of a terrible future where the Primarchs are gone, the ideals of the Great Crusade are forgotten, and the Emperor is worshiped as a god in a brutal fascist dictatorship. Horus [[DealWithTheDevil dealt with the Chaos Gods]] and turned on the Emperor (the man who saved humanity and rebuilt civilisation after a horrific dark age that lasted ''thousands of years'') to save humanity from this dark fate. The Horus Heresy results in the Imperium becoming increasingly authoritarian due to its paranoia over Chaotic rebellions like Horus's, and the final battle leaves Horus dead and the Emperor in a coma, unable to steer the Imperium onto a more enlightened path. Fast forward ten thousand years, and Horus's actions have caused the Imperium to become a brutal fascist dictatorship where the Emperor is worshipped as a god and the Imperial Truth (the atheistic rationalism which the Emperor personally believed) is thought of as heresy, [[{{Irony}} since it offends the immortal God-Emperor]]. [[DownerEnding Just]]… ''[[DownerEnding damn]]''.
** What about Fulgrim, the Primarch who reached for perfection for his Legion,leading to changing his Legion through [[UtopiaJustifiesTheMeans altering/mutating of their Genes]] and thus straving off the path of the Emperor, which led to [[DemonicPossession possession]] by an Chaotic Weapon while trying to commit suicide after [[MyGodWhatHaveIDone murdering his brother for the Chaos Gods]]
** A Fallen Hero or a Misunderstood one? Alpharius and Omegon, the twin Primarchs of the Alpha Legion seemingly sided with Horus against the Emperor. However, they did this after being informed by an universal alien organisation that when the Emperor would defeat Horus, the universe would continue in constant warfare against the [[UltimateEvil Chaos Gods]] , ultimately devouring the universe in the proces. They were told that when Horus would defeat the Emperor, the Empire would fall into chaos for 2 or 3 generations after which the Fallen Primarchs and Horus, ridden with guilt of their actions, would seek war upon themselves and destroy mankind and the [[UltimateEvil Chaos Gods]] in the proces (which is what the Emperor was trying to do). Upon reflecting this information the Alpha Legion decided to side with Horus against the Emperor to actually [[UtopiaJustifiesTheMeans follow the path he had directed]]for destruction of the [[UltimateEvil Chaos Gods]]. Thus they became Fallen Heroes to take the action a Right Hero should do.
** Magnus the Red was a Primarch who strongly supported the use of PsychicPowers and the importance of written knowledge. When he used sorcery to tell the Emperor of Horus's betrayal, despite the Emperor having forbidden sorcery, the Emperor [[ParentalFavouritism refused to believe that Horus could be a traitor]] and thought that it had to be Magnus instead. Therefore he sent the [[BloodKnight Space Wolves]] [[TheRival (who had always distrusted Magnus)]] to Magnus's homeworld Prospero thus forcing Magnus to [[DealWithTheDevil appeal to a Chaos God]] [[TheMenFirst so that his people would survive]].
* In ''{{Exalted}}'', this is how new Abyssals are made: a Solar is captured, strapped into a Monstrance of Celestial Portion, and tortured until they die, become catatonic, or become an Abyssal. There's nothing that prevents them from breaking loose, trying to rise again and setting off on a quest for redemption back into a Solar...
[[/folder]]

[[folder:Theatre]]
* Creator/WilliamShakespeare is a fan of these-- both Theatre/{{Macbeth}} and Theatre/{{Othello}} get talked into a FaceHeelTurn, as according to their status as {{Tragic Hero}}es.
[[/folder]]

[[folder:Toys]]
* In HeroFactory, [[spoiler:Von Nebula]] is this.
[[/folder]]

[[folder:Video Games]]
* In the {{Suikoden}} series, you'll usually recruit a couple of these per game. The most prominent is probably Geddoe from the third installment, who, in an interesting twist, in addition to being a Fallen Hero (retired/disinterested variety), is also one of the three main protagonists.
* In the ''Franchise/{{Halo}}'' Universe, Mendicant Bias betrays the Forerunners, who made him with free will (which is what caused this) [[TooDumbToLive and then had him communicate with the leader of the Flood]], The [[{{Hivemind}} Gravemind]], to the Flood. Then the Forerunners build Offensive Bias, who lacked free will, to defeat him. He did, but it was too late. The Forerunners had to activate the Halo Installations, killing all life in the galaxy. Offensive locked MB on the Ark. All the beings were cloned and seeded on their worlds (well, mostly, a few mistakes were made where some beings got placed on the wrong planet, as humanity found a few planets inhabited by humans that nobody knew). Cut to 100,000 years later, and Mendicant Bias causes Master Chief and Cortana to go somewhere unknown to, as he said, show his masters that he had atoned for his sins. There is a short history at the end of the Forerunner/Flood War, with an explanation of where John is going (sort of).
* A major plot-point in [[SquareEnix Squaresoft's]] ''LiveALive''. A classic [[spoiler:KnightInShiningArmor]] is rapidly [[{{Deconstruction}} deconstructed]] by being tricked into [[spoiler:slaying the king, finding out that his best friend has betrayed him, and finally realizing that the princess he's been trying to save is actually in love with said friend.]] He becomes the "Demon King", Odio, who has been a recurring BigBad for the heroes of our world to fight, from the Stone Age to the far future. The [[AnAesop aesop]], which somehow manages to avoid being {{Anvilicious}}, is that anyone can be a BigBad [[AsLongAsThereIsEvil as long as they hold enough hatred...]]
** Also, Hash in the medieval chapter, who is a mild case of this. He was a hero who defeated the Demon Lord, but lost faith in humanity and chose to live as a hermit on a mountain. He subverts it by helping Oerstred defeat the Demon Lord again.
* In ''VideoGame/{{Overlord}}'', your enemies are seven {{Fallen Hero}}es who represent the SevenDeadlySins: Melvin Underbelly the halfing (gluttony), Oberon the elf (sloth), Goldo the dwarf (greed), Sir William the paladin (lust), Jewel the thief (envy), Kahn the warrior (wrath), and the Wizard (pride).
** A more literal example would be [[spoiler:the titular character, who was originally a hero who fought alongside the other heroes, but fell from a great distance and was left for dead by his companions. The EvilPlan of the old Overlord sees the main character eventually revived by his minions and given the position of the Overlord as well as command over the minions.]]
** In the sequel, [[spoiler:Queen Fay]] becomes a Fallen Hero after her HeroicSacrifice. [[spoiler:Florian may also be one, although it's unclear if he was ever truly a hero.]]
--->'''[[spoiler:Rose]]''': Power, it always corrupts.\\
'''Gnarl''': Hah, that's half the fun!
* ''VideoGame/{{Warcraft}}'' is ''very'' fond of this trope.
** Sargeras in ''VideoGame/{{Warcraft}}'' originally fought demons for millennia, but eventually [[HeroicBSOD fell into thinking that it was no use and chaos was actually the only real solution to everything]]. Just to signify what this meant, [[EvilMakeover his bronze skin split apart, revealing a new body of fire and brimstone]].
** Archimonde and Kil'jaeden, the leaders of the eredar who sold their souls to Sargeras and became the leaders of the Burning Legion.
** Similarly, the human prince and paladin Arthas eventually resorted to the cursed blade Frostmourne to slay the demon that was (apparently) behind the plague that turned people into the undead. As a result, it took his soul and turned him into a death knight loyal to the Lich King (who [[MagnificentBastard had all that planned from the start]]).
** Then there's the death knights that followed him, which constitute Orders of Fallen Heroes. A force of them in ''Wrath of the Lich King'' are sent to wreak havoc in Northern Lordaeron... All of which seems to be little more than a [[spoiler:ploy to lure out Tirion Fordring, one the few living beings that could even be considered anything close to a threat to the Lich King. They were just a diversion and, eventually, as a result of a climactic battle in which Tirion reveals the truth of their betrayal and ultimate expendability]], pull a HeelFaceTurn. The player plays through this entire sequence, including all the irredeemable evil goodness inherent therein.
** And the night elf Illidan, trying to fight fire with fire (or demons with demon magic), eventually became a semi-demon himself.
** ''The Frozen Throne'' shows how the arrogant-but-decent high elves turned into the evil, demon-following blood elves they are in ''VideoGame/WorldOfWarcraft''.
*** In a desperate attempt to save his people, Kael'thas turned to demons, and let himself be consumed by their fel magic.
** Neltharion the Earth-Warder, one of the Five Dragon Aspects, charged by the Titans to protect the lands of Azeroth, DugTooDeep. After a little MindRape by the resident {{Eldritch Abomination}}s, he's calling himself [[NamesToRunAwayFromReallyFast Deathwing]].
*** Neltharion took every one of the black breed of dragons with him. They are hunted and mindlessly killed, sometimes just for sport. The truth is that they have all been driven completely insane and/or have lost every last one of their morals. The breed has almost been wiped out or forced under ground. It didn't help that Deathwing is dead, which probably just made things worse for the breed.
*** By that same token, Malygos the Spell-weaver, the Aspect of the Blue dragonflight. Best remembered from the pre-Sundering days for his playfulness and good humor, being the protector of magic. After Deathwing wipes out most of the blue dragons and seriously wounds Malygos, the latter spends 10,000 years in isolation, going mad from loneliness and betrayal. Despite snapping out of his madness in ''Day of the Dragon'' to help fight Deathwing and free Alexstrasza and the rebirth of the Blue dragonflight, Malygos never goes back to his cheery old self. Instead, he declares war against all non-dragon magic users, forcing Alexstrasza to assist heroes in killing a fellow Aspect.
** The Scarlet Crusade, which started out fighting to protect humans from the Scourge in Lordaeron, and gradually became increasingly paranoid to the point that anyone not a Crusader was deemed tainted. [[FromBadToWorse Then their leader was outright corrupted by the undead.]]
* Sarah Kerrigan in ''VideoGame/{{Starcraft}}''. Though she didn't "fall" so much as "was thrown, had her sense of morality surpressed", once she got her free will back, she decided that she liked being evil.
** It was more like her sense of morality and compassion were surpressed, allowing the darkness within to become dominant. Blizzard confirmed that ''Heart of the Swarm'''s arc will be about whether she will fall to darkness forever or transcend it and achieve redemption for her sins. So far, the trailer shapes her to be an AntiHero.
** The Overmind itself, which was long ago taken over by the Dark Voice.
* The first ''VideoGame/{{Diablo}}'' has King Leoric, who was strong enough to resist being completely possessed by Diablo but was left an insane and murderous wreck by the ordeal. The second game has ''all three of the original game's heroes''; the Warrior was manipulated into becoming Diablo's new host, the Rogue became Blood Raven, and the mage became The Summoner. And in the third game, apparently, ''every Diablo 2 character except the Barbarian'' will be AxCrazy. Blizzard is in ''love'' with this trope.
* [[spoiler: Fain, of the Red Masque]] from ''{{Lusternia}}''. A brilliant and popular leader amongst the [[PhysicalGod Elder Gods]], he resorted to [[JumpingOffTheSlipperySlope increasingly extreme]] measures to combat the [[EldritchAbomination Soulless Ones]]. Ultimately, he and his co-conspirators began ''devouring'' other Elders to imbibe their essence and power, and were banished to the Void. Driven [[AxCrazy insane]] by thousands of years of isolation, he is ''profoundly'' unhappy by the time he returns to the real world.
* Ace Hardlight from ''RatchetDeadlocked''. Ace was once a great hero before being kidnapped and forced to participate in [[CorruptCorporateExecutive Gleeman Vox's]] deadly gameshow, ''Dreadzone''. Ace eventually became seduced by the thrills and infamy of the tournament, and became the deadliest contestant on the show -- and TheDragon to BigBad Vox.
--->'''Clank:''' I do not understand. What sort of hero would kill other heroes for money?\\
'''Hardlight: '''Not money, tin man. ''Fun.''
** Also, Captain Qwark...for a given definition of 'hero'. In the [[VideoGame/RatchetAndClank first]] [[RatchetAndClankGoingCommando two]] games he's a fame-hungry showboater willing to endanger innocents for his own glory, the [[RatchetAndClankUpYourArsenal third]] game reveals that he did once, however incidentally, save the galaxy once from Dr. Nefarious. He gets better in later games, as in he's less willing to endanger innocents on purpose and prefers to take credit for Ratchet and Clank's adventures.
* Tons of these in ''Franchise/FinalFantasy'' games.
** Wiegraf (and possibly Delita) in ''VideoGame/FinalFantasyTactics''.
** Sephiroth in ''VideoGame/FinalFantasyVII''. Especially evident during ''CrisisCore'' and its glimpses of Sephiroth's pre-fall personality -- although cool and aloof, he was actually [[http://www.youtube.com/watch?v=feQQ_OUqbXE a pretty nice guy]] and hero-grade material before the Nibelheim Incident. His ''[[VideoGame/DissidiaFinalFantasy Dissidia]]'' [[http://www.youtube.com/watch?v=SqW58sxUyGk opponents]] ''will not stop talking'' about this in their pre-fight quotes, especially in Duodecim. The crazy thing is that Sephiroth will alternate between calling himself one or declaring himself a general destroyer of life. "Taste the blade of a hero.", indeed.
*** It's funny: the heroes will either question how he could have turned or how he was ever a hero, and the villain quotes (particularly the Emperor) make it sound more like a NeverLiveItDown moment.
*** Square Enix plays with this heavily in ''Dissidia''. Many of his quotes are contradictory to his villainous nature, such as saying "Fear not." or "Do not despair."
** Seymour in ''VideoGame/FinalFantasyX''. [[spoiler:Subverted in that it turns out that he was never a "hero" in the first place.]]
*** Jecht, also in ''VideoGame/FinalFantasyX.'' [[spoiler:Also subverted in that [[HeroicSacrifice willingly turning himself]] into the BigBad is the [[FlingALightIntoTheFuture only thing that allows the heroes]] to finally put the ViciousCycle to an end.]]
** Garland in ''VideoGame/FinalFantasyI''. He was the greatest of the king's knights, until Sara rejected him.
*** And for that [[MemeticMutation HE SHALL KNOCK YOU ALL DOWN!]]
* The Nameless One from ''VideoGame/PlanescapeTorment'' might qualify, [[spoiler: with some of TheAtoner thrown in. Apparently, he did something that was ''so bad'' in his first life, that he thought he'd be damned even if he did nothing but good for the rest of his life, and thus sought immortality in order to have more time to atone.]]
* Big Boss of ''Franchise/MetalGear'' was originally a quirky, cheerful, affectionate, paternal sort of man (though he still was a supreme {{Badass}} not to be trifled with), who ends up going through a major BreakTheBadass routine in ''Snake Eater'', ''Portable Ops'', and ''Peace Walker''. He [[spoiler:then ends up creating The Patriots with other "fallen heroes", Major Zero, Sigint (a.k.a. DARPA Chief, Donald Anderson), and Para-Medic (aka Dr. Clark, the head of the Les Enfants Terribles project and the one who turned Grey Fox into the Cyborg Ninja), as well as with [[MagnificentBastard Ocelot]] and EVA]] and creating Outer Heaven and Zanzibarland to plunge the world into eternal war before meeting his end at the hands of his "son", Solid Snake, which was prophesized by The Sorrow and Elisa.
** AntiVillain: The kind of 'peace' that his enemies sought was one ruled by a global totalitarian shadow state, and the eternal war that he sought was the opposite of their attempts to control and regulate the dangers of individual human will. Big Boss may have become a threat to world peace and security, but both were inextricably tied to imposed obedience, which is ultimately slavery.
** ''VideoGame/MetalGearRisingRevengeance'' brings us the Brazilian samurai Jetstream Sam. After his father was murdered, Sam took up the sword and became ''ridiculously'' good with it. He attained his revenge, and went on to reap a swath of justice across South America, just him and his little sword. Eventually he decided to take on the game's BigBad, World Marshal, [[ForGreatJustice because they were the bad guys]]. Expecting another test of mettle, he instead was forced to [[BrokenBird confront his empty ideals]] and was [[KneelBeforeZod cowed and broken before his enemy]]. After this, he resigned himself to work under World Marshal, committing acts of evil he would have once condemned, knowing he wasn't strong enough to defeat [[spoiler:Armstrong]]... but then [[PassingTheTorch along]] [[TakeUpMySword came]] [[RedemptionEqualsDeath Raiden...]]
** [[spoiler: Major Zero as mentioned above]]. To elaborate, he ''was'' directly (albeit, unintentionally) responsible for many of the things that happened in the series by creating the Patriot [=AIs=], but he [[WellIntentionedExtremist genuinely meant well]] before things [[GoneHorriblyWrong went horribly wrong]]. And by the time the [[AIIsACrapshoot AIs went rogue]], it was too late for him to realize and fix his mistake. And when ''Guns of the Patriots'' rolls around, he's fallen from grace in more ways than one, being revealed to be reduced to a ''very'' old man confined to a wheelchair, on life support and suffering from severe dementia. [[spoiler: Big Boss pulls the plug on him, and as he dies, the audience is treated to flashbacks of the Major in his younger days, emphasizing that he was a good man who went about things the absolute wrong way]]. AlasPoorVillain indeed.
* The 7 Heroes of ''VideoGame/RomancingSaGa 2''. [[spoiler:Warriors who saved the world, but were betrayed by the people they saved and cast into Hell through dimensional magic.]]
* ''Franchise/MassEffect'' seems fond of this trope.
** Matriarch Benezia, having unwittingly lost herself to the very madness that she sought to stop, the ultimate tragedy being that she can't be saved.
** As of the second game, Liara seems to be the anti-hero variant of this trope in the making. [[spoiler: She gets better.]]
** Depending on your choice of background and alignment, especially if you change alignments between games, Shepard can be played as a fallen hero.
*** A few characters see Shepard as a fallen hero in ''VideoGame/MassEffect2'', no matter how you play, given that s/he's forced to work with a terrorist group.
*** And s/he is definitely seen as this at the beginning of ''VideoGame/MassEffect3'' given the terrorist connection and that s/he was forced to kill over 300,000 people to slow down the Reaper invasion. One news report early in the game even refers to him/her as "the disgraced Commander Shepard".
** The second game also gives us [[spoiler: Rael'Zorah. Tali specifically fears her father being seen as this by the quarian people after he chooses to run weapons tests on active geth prisoners in order to advance the cause of retaking the homeworld.]]
* [[spoiler:Thorndyke]] in ''SoulNomadAndTheWorldEaters'', a KnightInShiningArmor goes this route [[spoiler:in the Demon Path, initially submitting to The Main Character in order to save his son.]] As time goes on, he is forced to do worse and worse things until [[spoiler:he is tricked into believing that he killed his own son, turning him into an AxCrazy [[TheBerserker Berserker]]. When he later sees that his son is alive, [[TheDragon Kanan]] convinces him that he never went mad and killed because he truly enjoyed it, finally breaking him.]]
** [[spoiler:If we're talking Demon Path, Revya is possibly the biggest Fallen Hero of them all.]]
* [[spoiler:Mithos (second type), Kratos, and Yuan (both first type, one in service of Mithos and the other one opposing him)]], from ''VideoGame/TalesOfSymphonia''.
* [[spoiler:Ghaleon]] from the ''{{Lunar}}'' series qualifies quite well for this trope. He has a glowing reputation at the start of ''VideoGame/LunarTheSilverStar'' (and the remakes) for heroism alongside the famed Dragonmaster, Dyne. His FaceHeelTurn sends the world into a panic. [[spoiler:In the remakes, he is a WellIntentionedExtremist who sees the Goddess Althena's decision to leave humans to their own devices as abandonment. So, Ghaleon starts plotting a way to restore divine leadership to the world. And who is the new divine leader? Ghaleon! His purpose in ''VideoGame/LunarEternalBlue'' turns out to be redemption for this, though the player doesn't learn this until right at the end of the game.]]
* Jon Irenicus from ''BaldursGate II'' counts. Prior to his exile from [[spoiler:Sulldanesselar]], he was an upstanding citizen and powerful mage. Pride was his downfall; he was exiled and [[spoiler:stripped of his soul]] for using his power to try and achieve godhood.
* [[spoiler:Aribeth de Tylmarande]] from ''VideoGame/NeverwinterNights'' and [[spoiler:Bastila Shan]], Revan, Malak, and the entire Revanchist movement from ''VideoGame/KnightsOfTheOldRepublic''. How you play both games determines whether the spoilered characters stay evil or not.
** Also, Yuthura Ban on Korriban, who was a fallen Jedi padawan with similar motivations to Anakin when he started out (i.e. go back home and free all the slaves), who then suffered from MotiveDecay and became just another power-hungry Sith.
*** You can [[LastSecondChance point this out]]. [[HeelRealization It helps]].
* Akachi the Betrayer and a third of his Crusade from ''VideoGame/NeverwinterNights2: Mask of the Betrayer'' are all Fallen Heroes, the dragon and the army of undead having been evil to begin with. Arraman might also qualify, depending on your character interpretation.
** And the King of Shadows from the original campaign, whose mission to defend the Illefarn Empire suffered severe MotiveDecay when he escaped from his extradimensional prison and found that the Empire crumbled to dust millennia past.
* ''VideoGame/SkiesOfArcadia'' features Ramirez, TheDragon to [[BigBad Lord Galcian]]. He's described as having once been pretty similar to Vyse - artistic, kind-hearted, and loyal. Unfortunately, he was raised in near-isolation by the most arrogant culture in the game and coming into contact with the meaner parts of Arcadia proved a little much for him.
* ''VideoGame/{{Disgaea 3|AbsenceOfJustice}}'' has an example of its own [[spoiler:in Super Hero Aurum. He was originally a hero who fought some of the greatest villains his world has ever known, but the more he fought, the further he fell towards obscurity, which he feared more than anything else. He needed to relish in being known as a hero, so he began doing worse things over the years, up to and including killing a nice guy Overlord and raising his son to be a general asshole Overlord just so he could be a hero again. As Sapphire put it, he eventually "ignored being the hero".]]
** Which of course raises the question of what the hell he was doing when "The God of All Overlords" showed up in Disgaea 2, but then again [[RuleOfFunny the series isn't really known for it's continuity.]]
* Beldr from ''VideoGame/DevilSurvivor'' is Baldr, god of light and beauty from NorseMythology. After he became trapped in the underworld as a giantess refused to weep for him, he became determined to spread lament on the Earth until everything cries.
** For extra bonus points? It's implied that said giantess was actually Loki.
** From the same company, various hints have been dropped by [[WordOfGod Atlus]] saying ''something'' happened to [[{{God}} YHVH]] to make him what [[GodIsEvil he]] [[KnightTemplar is]] [[ItsAllAboutMe today]].
* Malin Keshar from ''BattleForWesnoth'' attempted to use necromancy to defend his home village of Parthyn. However, after being rejected by his own people due to the bad reputation that necromancy has, he becomes the apprentice of Darken Volk, and begins to despise everyone more and more until he's a full-blown VillainProtagonist.
* Tempest Hawker from ''VideoGame/SuperRobotWarsOriginalGeneration'' was once a member of TheFederation Aggressor unit. After [[CynicismCatalyst losing his wife and daughter]] in the Hope incident, he will do anything to get revenge on the Earth Federation.
* Boy, does ''VideoGame/ViewtifulJoe'' have these...
** In the first game, [[spoiler:''Captain Blue'' is the one masterminding to escape from Movieland to take over the real world, having lost his stride ''twice''. In the real world, he was hailed as revolutionary director, having created several good movies, but then he lost all of that. He just wanted to create more heroes. He was then somehow sucked into one of his films, and he lived all of the great adventures he wanted, but then he figured something out: the world was too good to last, he started to want revenge against the people of the human world.]] Thankfully, he got some sense knocked into him.
** May not count, but the second game gives us [[spoiler:Jet Black, who wanted to become a film maker to show his son what a true hero was. He then found the [[ArtifactOfDoom Black Film]], which started to eat at his desires, eventually twisting his desire to make a film about heroes to ''[[BecomingTheMask actually wanting to be the hero]]'', and was going to take over the world.]] Again, he got some sense knocked into him.
* The World Corp storyline in ''TheNamelessMod'' allows you to be this.
* ''Franchise/{{Castlevania}}''
** Mathias Cronqvist, friend to [[VideoGame/CastlevaniaLamentOfInnocence Leon Belmont]], brilliant strategist, noble Crusader, and genius alchemist. The death of his wife Elizabetha shattered his faith in God and he became obsessed with obtaining immortality so that he could curse God forever. And thus was [[spoiler:Dracula]] born.
** Gabriel Belmont in the series reboot ''[[VideoGame/CastlevaniaLordsOfShadow Lords of Shadow]]'' is shaping up to be this. Despite his valiant efforts in the first game to cleanse the world of dark beings, the DLC epilogue chapters and post-credits epilogue cutscene suggest that in his time fighting the darkness, it somehow inadvertently rubbed off on him - and his proximity to it ultimately resulted in his transformation into Dracula.
* [[spoiler:Wander]] from ''VideoGame/ShadowOfTheColossus'' becomes one of these. [[AlternateCharacterInterpretation Assuming that you think that he was heroic to begin with/villainous in the end...]]
* Michael Jordan, of all people, in ''VideoGame/BarkleyShutUpAndJamGaiden''. The fact that ''Film/SpaceJam'' is canon to the game's storyline only amplifies this.
* [[WellIntentionedExtremist Teyrn Loghain Mac Tir]] from ''VideoGame/DragonAgeOrigins''. In the prequel novels he slowly becomes a high-ranking officer for the rebels, and is later hailed as a noble and one of the greatest war heroes along with King Maric as they win and drive out the Orlesians. Sadly, he becomes so protective of the kingdom he's fought for, that he gradually [[SanitySlippage turns]] [[GeneralRipper extremely]] [[IDidWhatIHadToDo paranoid]], and goes as far as to [[spoiler: leave Maric's son, the current king, to die in the battlefield when he suspects him of trying to sell Ferelden out and framing the Grey Wardens, triggering one of the game's two main plots.]]
* Although many people forget this part of her backstory, Meredith from ''VideoGame/DragonAgeII'' was also this trope, as she became Knight-Commander after overthrowing the previous viscount of Kirkwall, Perrin Threnhold, when he tried to expel the templars from the city. While not everyone looks upon the templars fondly, Perrin Threnhold is generally regarded as a tyrant and robber baron who brought about his own demise. In the end, Meredith's paranoia over blood magic [[SanitySlippage drives her utterly mad]] and [[spoiler: she tries to use an ArtifactOfDoom to kill Hawke.]]
** [[spoiler: Anders, one of your party members who was once a heroic and kind-hearted Grey Warden, loses his battle with the demon of Vengeance inhabiting him and blows up the Chantry.]]
* In ''VideoGame/RedDeadRedemption'', Dutch Van Der Linde was, according to John Marston, an idealistic romantic who was essentially the western Robin Hood. However, at some point, he went insane, likely due to the realization that all of his efforts won't bring any true change in the end. Now, he's gone absolutely AxCrazy.
* Jack Krauser from the ''Franchise/ResidentEvil'' series qualifies as such, especially when Darkside Chronicles paints him with an initially heroic light, but after his arm was heavily injured (which resulted in him being fired from SOCOM due to it never recovering), as well as becoming increasing envious towards Leon, he eventually fell to the depiction of him in ''VideoGame/ResidentEvil4''.
* Sepulchre from ''VideoGame/DragonFable''.
** Vilmor, in the Dragon's Grasp arc, had been imprisoned for destroying the town of Bask and hurting the trust of great ice dragon Cryozen (which Vilmor had bonded with). [[spoiler:Subverted big time. It turns out that [[SamusIsAGirl SHE]] wasn't responsible for the destruction of Bask, Dragon Master Frostscythe was, and she was just looking for Cryozen before it died. Furthermore, Frostscythe was her childhood friend who felt that he was shortchanged by the Dragon Lord order because of his ice elf lineage; the whole Bask incident was an elaborate ploy to sever the bond of trust between dragon and Dragon Lord.]] [[ItMakesSenseInContext Before you ask, yes.]]
* Malefor, the BigBad of ''VideoGame/TheLegendOfSpyro'' trilogy was implied to be one. Statues of him dot the Dragon Realms, including the training area of the Dragon Temple. Prowlus also claims that Spyro [[NotSoDifferent is just like Malefor at his age...]]
* {{Subverted|Trope}} in ''VideoGame/{{Touhou}}'' with Byakuren's back story. She was a revered nun in ages past, but realizing her own mortality after the death of her brother Mokuren, she dabbled with witchcraft and turned into something not human. The people eventually sealed her in the Pandemonium...but more due to her becoming more understanding to the {{Youkai}}, and not because she's turning evil. If anything, her "fallen" status made her a ''better'' person.
* In ''VideoGame/MegaManX4'', Sigma is revealed to be a victim to this trope to Zero before ''X1''.
* In the MMORPG ''VideoGame/MapleStory'', [[spoiler: Empress Cygnus in the future. Because they were weaker than the regular adventurers of the Maple World (shown by the fact that they can only go up to level 120 instead of the regular 200), Cygnus wanted to increase the power of her knights so they could match up with the rest of the world. To do so, she looked for the Tree of Life, which she found. However, it was a trap laid by the Black Mage, and combined with their crippling insecurity, the Empress and her knights were corrupted by the Black Mage, and began to destroy the Maple World.]]
* Dirk from ''VideoGame/ValkyriaChroniclesII''. [[spoiler: Ready for a whopper of a spoiler? He is actually Leon Hardins, older brother and idol of the protagonist. An exceptional militiaman, he was selected for a "special mission" - being [[PlayingWithSyringes subjected to human experimentation]] that [[BeingTorturedMakesYouEvil stripped him of his humanity]]. And so he ends up fighting for a genocidal band of insurrectionists.]]
* According to the instructions manual for ''VideoGame/SuperMarioBros'', [[TheGoomba Goombas]] were said to be former residents of the Mushroom Kingdom who betrayed Princess Peach and the Toads and sided with [[BigBad Bowser.]] Not so much in later games, where some Goombas are instead portrayed as allies.
* The cast of LastScenario is littered with heroes and wannabe-heroes who are used, deceived and broken in various ways, so naturally one of these ([[spoiler: Castor, the game's BigBad]]) would come out of it, while the game details his descent down the [[SlidingDownTheSlipperySlope slippery slope]], until even his most loyal allies join the other side in an attempt to bring him back..
* Whether Abysswalker Artorias is this or a DefectorFromDecadence is the subject of much debate in ''VideoGame/DarkSouls''. Artorias was one of Lord Gwyn's four great knights, making him one of his top lieutenants. An unknown number of years ago, the Darkwraiths (Humanity devouring dark knights of the darkness) appeared. They were so [[GodzillaThreshold dangerous]] that it eventually resulted in outright sacrificing a city. Artorias was charged with hunting the Darkwraiths, but instead joined them for reasons that are not known.
** The DLC elaborates on Artorias' story. He did not join the Darkwraiths, but rather was rewarded for stamping them out with a blessed pendent. However, in a unrelated event in Oolacile, Artorias [[spoiler: is defeated by Manus, the Father of the Abyss, who also appears to have single handedly destroyed most of the country in the process]]. As a result of this, Artorias is not only corrupted, but appears to have been driven irredeemably mad and needs to be put down at the players hands.
* [[spoiler:Lobelia]] used to be a good guy a thousand years ago in ''VideoGame/DuelSaviorDestiny'', but due to a combination of resentment, a persecution complex, envy and genuinely believing that a world built around the strong dominating the weak would be best, she eventually turned on her companions and nearly caused the end of the current world order. In the present, her importance towards this aim has declined, but she's still working towards it as bitterly as ever.
* [[spoiler:Penelope]] in ''VideoGame/SlyCooperThievesInTime''. [[spoiler:She [[FaceHeelTurn joined]] [[BigBad Le Paradox]] because she believes she and Bentley were [[TheyWereHoldingYouBack being held back from their true potential by 'working for chump change']]. Bentley [[HeroicBSOD doesn't take it well]].]]
* Ulfric Stormcloak from ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]''. Precisely where he stands on the sliding scale of anti-heroes/anti-villains is up for debate, but it's definitely lower than where he started out; a former student of the Greybeards and Imperial Legion officer, he used the training he received while studying to become a pacifist monk to commit regicide and ignite a civil war against the very empire he once served. [[GreyAndGrayMorality He has]] [[TraumaCongaLine his reasons]], though.
* In ''VideoGame/DisneyPrincessEnchantedJourney'', the BigBad, Zara, is an ex-princess who refused to learn princess virtues and was banished from her kingdom as a result. She came back with evil powers and sought to ruin worlds of other princesses and stop girls from becoming princesses.
* While not the main character of ''VideoGame/{{Ravenmark}}: Scourge of Estellion'', Livia Cassianus is, nonetheless, an important character, being the protagonist's LoveInterest and a member of the Court of Shadows, the Imperial House's highly-trained spies and assassins (all {{Heroic Bastard}}s of said House). Livia is a good-hearted, noble person. This is why the late Emperor Sergius Corvius has been secretly grooming her as his successor over his own legitimate children (his eldest daughter doesn't want the job anyway). After Grecian, Sergius's son, is overthrown by LaResistance, Livia is crowned Empress Livia Corvius and personally leads the Imperial Mark against the invading Kaysani hordes. But when the BigBad Alejo de Porres [[spoiler:chooses to [[TakingYouWithMe suicide-bomb himself]] to kill Livia, her lover Calius Septim, the main character, sacrifices himself to keep her safe. Livia becomes determined to punish all responsible]]. ''Ravenmark: Mercenaries'' takes place 6 years later. By this time, Livia is known as the Scarlet Empress for her brutal policies and unwavering desire to crush all enemies of the Empire, both domestic and foreign. In large part, she is responsible for Estellion becoming a VestigialEmpire, barely strong enough to fight the newly-arisen Varishah Federation and the formerly-allied Commonwealth of Esotre in a three-way stalemate. Additionally, one of the most important cities in the Empire has seceded and remains a haven for mercenaries.
* Cody Travers from ''VideoGame/FinalFight'' and later the ''VideoGame/StreetFighter'' series. While it is not actually seen in the games, multiple games tell the story of his downfall, which occur after the ending of the original Final Fight. Cody and his friends go out to save his girlfriend from the ''BigBad'' in Final Fight. On the way, [[BeatEmUp he beats up]] a corrupt cop named Edi, who later arrests the hero for assault in battery. Next, his girlfriend dumps him, and [[PutOnABus leaves the country to study abroad]]. Afterwards, he is let out of jail and tries to get revenge by fighting criminals outside. He gets arrested again, and becomes addicted to fighting within prison. He then eventually breaks out, and joins the Street Fighting cast in their tournament(s). After all these events, he usually claims that he will never be the hero again, and often states that all he has left is fighting (which he often exclaims is pointless).
* In ''VideoGame/DisneyPrincessEnchantedJourney'', a game about Disney Princesses, the villain is Zara, who's an ex-princess banished from her kingdom for refusing to learn princess virtues.
[[/folder]]

[[folder:Visual Novels]]
* Archer in ''VisualNovel/FateStayNight''. He gets to have ''all'' of the above ways of breaking him; in fact, contrary to the page quote, he died a hero and ''still'' saw himself become the villain. Technically, he still believes that his ideal is correct, he just realizes that it's way bloodier than he thought it would be and would rather not exist than be forced to continue with it. He pulls off a pretty impressive BatmanGambit to do so.
[[/folder]]

[[folder:Web Comics]]
* Smilling Man from ''Webcomic/TheCrossoverlord''. Once the greatest hero of his universe, after the death of his beloved wife, he turned into a MultiversalConqueror.
* Both Miko and Redcloak in ''Webcomic/TheOrderOfTheStick''. While neither of them were ever truly heroes, both were, at the bare minimum, decent people, before their MoralEventHorizon. The former actually fell, losing her paladin powers.
** Miko averts this at the same time. While she falls, she never aligns herself with the bad guys ([[NeckSnap violently]] rejecting an offer to do so). She's ''trying'' to do what's right, but has difficulty determining what that is, largely due to her [[FatalFlaw pride]].
[[/folder]]

[[folder:Web Original]]
* In ''Roleplay/TheGamersAlliance'', [[AntiVillain Kagetsu I]] was originally a revered hero until his dream of a better world drove him to attempt to [[UtopiaJustifiesTheMeans destroy the world and create it anew as an utopia]]. [[SnarkKnight Cain]] and [[spoiler:[[HeWhoFightsMonsters Refan]]]] end up falling as well, the former because he was near death and ended up in the care of a corrupter, and the latter because he wanted to [[FakeDefector join the demons]] (who actually ended up being GenreSavvy enough and used his own lingering darkness and doubts to corrupt him instead) to gather intel behind their backs and to avenge his adoptive little sister's death.
* [[http://www.youtube.com/watch?v=73RQH6Q7_Tw Sungod V]] has a good example of this trope. Subvert on the Hero part though.
* Mister America, from the ''GlobalGuardiansPBEMUniverse'', fought the Nazis, helped defeat them, and came back to a hero's welcome. He took off the costume, revealed his real name, and went to Hollywood to become an actor. And then he threw it all away by testifying before the [=McCarthy=] hearings as a friendly witness. He's since tried to make multiple comebacks, but every time he does, someone reminds him of the day he left his friends swinging in the wind before a hostile Congress.
* In {{Literature/Worm}}:
** [[spoiler:Armsmaster]] is admittedly [[GlorySeeker not the nicest hero]] in the parahumans setting. However, in the Extermination arc, he finally goes all the way overboard, [[spoiler:endangering the truce that gives a slim chance against Endbringer attacks simply for his [[EngineeredHeroism own career]]]] -- a move which has him [[TreacheryCoverUp quietly placed under house arrest]] (although [[spoiler:he is allowed to escape in order to become the superhero Defiant]]).
** [[spoiler:Panacea]] was considered one of the most selflessly heroic people in the entire Brockton Bay until the successive psychological stresses she suffered because of [[spoiler:Tattletale, Marquis, Bonesaw, and Jack Slash]] made her crack and [[spoiler:accidentally inflict total BodyHorror on her sister]].
* In ''TheMonsterGirlEncyclopedia'', the Demon Lord's army has a whole unit made up purely from this trope. These people were heroes who failed their mission to slay the Demon Lord. Men are charmed and women become [[HornyDevil succubi]]. The old comrades then reform their party under command of the Demon Lord. It's played for laughs, although they're probaly the most powerful fighting force in the Demon Lord's army, but the former heroes are mostly too busy screwing their heroines and are only seen in actual combat when there's a serious threat. And the Demon Lord's husband is none other than the hero who slayed the previous Demon Lord. But considering his motive, to create a world where humans and monsters can live in harmony, it's arguable if he's really fallen.
* [[WebVideo/AtopTheFourthWall Linkara]] was well on his way to becoming a very tragic (for him and the rest of the world) one of these before [[EmpathicWeapon Margaret]] stepped in, prompting a journey where he had it thrown in his face just what he was becoming.
* [[CaptainPlanetAndThePlaneteers Captain Planet]] becomes one in the "Funny Or Die" series wherein he eventually turns every human on earth into a tree. [[WeaksauceWeakness He's taken down by woodpeckers]].
-->'''Captain Planet:''' THE POWER IS MINE, BITCHES!\\
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[[folder:Western Animation]]
* The Justice Lords from ''WesternAnimation/JusticeLeague'', following the death of their Flash, became {{Knight Templar}}s and transformed their earth into a metahuman-ruled {{dystopia}} where dissidents and supervillains were lobotomized. [[Quotes/FallenHero The Superman quote]] from the episode "A Better World" is given just before he crosses the line and kills Luthor, who was responsible for Flash's death, with his heat-vision.
** Shayera Hol, AkA Hawkgirl was considered this after it was discovered she was TheMole during the Thanagarian Invasion, which caused her to leave the League, though Alfred begged to differ. However, upon rejoining the Justice League, she became a hero again, but discarded the name "Hawkgirl", due to the lies, disgrace, and treachery that the name carried. Therefore as of ''Unlimited'', Shayera considers her alter ego to be a fallen hero.
* ''Two-Face'' again, this time in ''WesternAnimation/BatmanTheAnimatedSeries''. Before his [[FaceHeelTurn transformation]], Harvey Dent was a regular character on the show-- an ally of Gordon, and [[TearJerker Bruce Wayne's closest friend]].
* Ethan Bennett was a similar character on ''WesternAnimation/TheBatman''. He was an honest cop and a close friend of Bruce until after already under stress due to an argument with Chief Rojas, he became the victim of MindRape by SelfDemonstrating/TheJoker'', and was then exposed to the villain's Joker Putty, turning him into a clay-like monster. The whole experience drove him mad, and turned him into this continuity's version of Clayface, who was more than capable of murder.
* Morgana in ''WesternAnimation/WinxClub'' until her HeelFaceTurn.
* Blackarachnia of ''WesternAnimation/TransformersAnimated''. Getting abandoned on a hostile planet and suffering nasty BodyHorror involving a GiantSpider or twenty would make ''anyone'' a little bitter.
** Wasp of the same series, who, after being falsely accused of being a traitor, spends over 50 years in a prison and goes insane. [[JerkassWoobie Poor]] [[TheChewToy guy]]. That's not to say that he was a decent guy. As Bulkhead put it, "You may not have been a traitor, but you were never a good bot."
* Wheeljack from ''Anime/TransformersArmada''. After believing that Hot Shot abandoned him and left him for dead, he does a FaceHeelTurn and joins the Decepticons. He comes back for revenge.
** An earlier one from Franchise/{{Transformers}}: [[spoiler:Rhinox]] from ''WesternAnimation/BeastWars'' becoming [[spoiler:Tankor]] of ''WesternAnimation/BeastMachines''.
** Depthcharge was apparently a model Maximal before Rampage wiped out Colony Omicron, turning him into a grim and obsessed hunter.
** And Megatronus Prime, the thirteenth original Transformer. You should know him as the Fallen, with his original name being taken by Megatron, who in most continuities idolized him enough to take his name.
** Megatron himself generally follows this in most continuities. What usually happens is, at first, the Autobot regime is corrupt and dictatorial, and Megatron rebels against that, being a genuinely heroic revolutionary fighting for social change (often for the sake of a highly oppressed working class). Then right around the time he actually manages to get rid of the 'bots responsible to the point where the Autobots have enacted the change he wanted and become a genuinely morally upstanding society, the stress and thrill start driving him to become even more evil and power-hungry than the ones he was fighting, and so the civil war he started continues with the "good" and "evil" labels having switched somewhere along the way.
* ''WesternAnimation/DannyPhantom'' finds this as his [[BadFuture future]]. He did some pretty disturbing things in that future, including murdering his ''human self'' along with probably hundreds of others and doing millions in property damages...at least. Quite shocking, given the otherwise childish, campy tone of the series. Danny, upon seeing this, is [[FutureMeScaresMe extremely horrified by his actions]].
* Shego in ''WesternAnimation/KimPossible'', according to her backstory.
* In ''WesternAnimation/ChallengeOfTheGoBots,'' Cy-Kill was once one of the High Protectors of Gobotron. (And Leader-1's best friend.)
* ''WesternAnimation/TeenTitans'' had Terra, who started off as a good-natured girl with unstable powers, but was eventually drawn to becoming [[BigBad Slade's]] apprentice in exchange for him teaching her to control her powers, leading to her betrayal and becoming a villain.
* [[KnightOfCerebus Chase Young]] of ''WesternAnimation/XiaolinShowdown'' used to be a heroic monk under Grand Master Dashi, until [[TheCorrupter Hannibal Roy Bean]] convinced him to trade his soul for an immortality potion. Since then, he's been one of the world's greatest evils.
* Princess Luna, the very first villain of ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', is a [[PhysicalGod physical]] [[FallenAngel goddess]] who, alongside her older sister Celestia, once co-ruled Equestria and fought to defeat the [[GodOfEvil evil god]] [[RealityWarper Discord]] and the tyrannical King Sombra. A combination of perceived ingratitude on the part of her subjects and a vaguely-defined dark force corrupted her into the vengeful "[[SuperpoweredEvilSide Nightmare Moon]]," and Celestia was forced to [[SealedEvilInACan seal her away]] to prevent her from [[OmnicidalManiac bringing about global extinction]] through TheNightThatNeverEnds, but when she escapes, she's ultimately redeemed rather than killed. (The second season's HalloweenEpisode focuses on her attempts to [[TheAtoner atone]]--it's difficult to be accepted as good when you represent TheSacredDarkness in a society which you helped to convince that DarkIsEvil.)
* [[CreepyChild The Delightful Children From Down The Lane]] in ''WesternAnimation/CodenameKidsNextDoor''. [[spoiler: Formerly the members of Sector Z, they were delightfulized by Father, into what the are today.]]
** There's also Cree Lincoln, Numbuh Five's sister and once the best operative the KND had, who later became one of their worst enemies. Also counts as a BrokenPedestal and a case of CainAndAbel in Numbuh Five's case.
** In fact, the KND seems to have a problem with traitors ''a lot''. That may be the whole reason they inflict LaserGuidedAmnesia on operatives when they retire. On a positive note, [[spoiler:both Chad and Maurice were [[FakeDefector Fake Defectors]], subversions of this Trope, although in Chad's case, the revelation didn't make Numbuh One like him much.]]
* In Season 2 of ''WesternAnimation/YoungJustice'', after a TimeSkip, we have [[spoiler: Aqualad, now [[MeaningfulRename Black]] [[OverlordJr Manta]] [[LegacyCharacter II]].]] The worst part is that [[spoiler: he was ''TheLeader'' in Season 1.]] The cause of this was [[spoiler: [[LoveMakesYouEvil blaming the team for his love interest dying]]]] ''and'' [[spoiler:finding out [[LukeIAmYourFather his real father was the supervillain Black Manta.]]]] Viewers can only hope for a HeelFaceTurn.
** Later revealed that [[spoiler:he didn't really go to the dark side. He's a ReverseMole and Dick, Wally, and Artemis are in on ThePlan.]]
*** However [[spoiler: Aquagirl really did die, and he really was geniunely devastated by the reveal of his true parentage, to the point where Wally isn't totally confident Aqualad won't end up becoming this for real in the end after all, especially since he's growing a genuine bond with his father, while becoming more and more detached from the team.]]
*** "[[WhamEpisode Before The Dawn]]" reveals that [[spoiler:Blue Beetle II, Jaime Reyes,]] becomes this in Bart Allen's future and [[spoiler:apparently plays a key role in initiating the apocalypse--Jaime is the main reason Bart traveled to the past in the first place.]]
* [[spoiler: Simon Petrikov/The Ice King]] on ''WesternAnimation/AdventureTime''. As a human, he was a scholar, a loving fiance, and a ParentalSubstitute to a little girl who had been abandoned during the middle of WorldWar3. But [[spoiler: [[ArtifactOfDoom the Ice Crown]] [[TheCorrupter mentally warped him]] until he was unable to remember himself at all, leaving the insane husk that Finn and Jake know presently.]]
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