->''"Easy for a good girl to go bad, and once we gone, best believe that we've gone forever."''
-->-- '''Music/{{Rihanna}}''', "[[http://www.azlyrics.com/lyrics/rihanna/goodgirlgonebad Good Girl Gone Bad]]"

She is adorable, sweet, nice, good-hearted... your stereotypical good girl. [[MoralEventHorizon Until that fateful day]]. Abduction, murder, rape, any kind of violence. You name it. The nice, good girl goes through an event (or series of events) that changes her character and shapes her to the way she is now.

And now she's a bad, bad girl.

They come in various different flavors. Sometimes they're simply an IceQueen. Other times, they are worse. Many female villains tend to be good girls gone bad.

Subtrope of FaceHeelTurn. See also GoodBadGirl. May also relate to UsedToBeASweetKid.


[[folder:Anime and Manga]]
* ''Manga/ElfenLied'' has [[spoiler:Kaede]], commonly known as Lucy. She was nice and sweet, [[spoiler:until a group of orphans beat to death Lucy's puppy, the only being in the world she actually cared about. And they found out about it from a girl who pretended to be her friend, the first human she was beginning to trust. That's when her murder spree began, although it was put down eventually thanks to Kouta. However, after he lies about his cousin's gender and she finds out the truth, she's gone for good.]]
** Anna could be considered, but due to her being AffablyEvil, it's doubtful. She does have a rough past, [[spoiler: since her own father used her for experimentation and much, much worse,]] but she's not truly bad herself.
* Boa Hancock from ''Anime/OnePiece'', although she [[CharacterDevelopment got better]].
** Nami was one as well, until she was freed from Arlong.
** Robin, while she was [[TheDragon a villain]], also qualifies.
* ''VisualNovel/HigurashiWhenTheyCry'' gives us Miyo Takano, who was revealed to be [[spoiler: [[EvilAllAlong the main villain of the series]]]] in Kai. Her actions speak for themselves, and all because [[spoiler: the investigation of her grandfather was laughed at and treated as rubbish. Her horrible life before being found by him contributed as well.]]
** All the main females from this anime are this, actually, when commiting murder. [[spoiler: Except for Rika, who is inmune to Hinamizawa Syndrome.]] Each one has an event at a respective arc that makes her [[AxCrazy snap.]]
*** Rena in Tsumihoroboshi-hen [[spoiler: after killing Ritsuko and Teppei.]]
*** Shion in Meakashi-hen [[spoiler: when Mion and Keiichi's relationship makes her remember that Satoshi's gone.]]
*** Satoko in Tatarigoroshi-hen [[spoiler: after seeing Rika dead in the shrine, and [[MistakenForMurderer Keiichi in front of her]]. [[AnAxeToGrind And an axe on his hands]].]]
*** Mion does not fall into this in the anime and manga, but in the visual novels [[spoiler: it is implied that, in one of the worlds Rika was in, Mion went {{Yandere}} for Keiichi, going as far as to murder others to keep him for herself.]]
* [[spoiler:Madam Red]] from ''Manga/BlackButler'', after the death of Ciel's parents and meeting Grell. Although she does redeem a bit at her last moments, [[spoiler:when she is unable to kill Ciel.]]
** Subverted by Elizabeth, [[spoiler: who was a bad, kickass girl until she met Ciel and decided to remain a cute, good girl for him.]]
* ''Manga/FutureDiary'':
** [[AxCrazy Yuno]] [[{{Yandere}} Gasai]] from eventually qualifies, after we learn that [[spoiler: [[AbusiveParents her mother kept her in a cage for not living up to her expectations]].]] And then she goes completely bad after [[spoiler: [[SelfMadeOrphan killing both her parents]]. [[FromBadToWorse And it just went downhill from there.]]]]
** [[spoiler:Hinata]] too; she was a nice girl until the Survival Game began, which made her become TheDragon so that she could live happily with her father once it was all over.
** And let's not forget about Ai, who was abandoned by her parents and taken into the Eighth's orphanage, but was bullied by [[AlphaBitch other girls]] in high school, and later [[spoiler: [[RapeAsBackstory raped.]]]]
* Megumi from ''Manga/{{Shiki}}'' was a [[OrdinaryHighSchoolStudent common schoolgirl]]... until, she met the Kirishikis. Then, [[spoiler: when she comes back as a shiki, she becomes much more bad, almost reaching {{Yandere}} levels for Natsuno.]]
** Sunako and Chizuru Kirishiki can also fall into this, [[AlternateCharacterInterpretation if you can consider them bad, that is]].
* Yuka Minase from ''VisualNovel/ElevenEyes'' could be considered this, even if in the end [[spoiler: she returns to her old persona, becoming the sweet girl she was in the beginning once again,]] she does have her [[{{Yandere}} bad]] [[CuteAndPsycho moments]].
** Also, [[TheDragon Superbia]] [[spoiler: (aka Misao Kusakabe)]].
* ''VisualNovel/SchoolDays'' is famous for this.
** Sekai starts off as the protagonist's best friend and a comical plucky girl, which she was until [[spoiler:she gets pregnant by [[{{Jerkass}} Makoto]] who, terrified that his secret lover could be carrying his child, leaves her for Kotonoha and orders Sekai to get an abortion]]. Needless to say, things do ''not'' end well.
** Kotonoha is this ten times worse. She was possibly [[NiceGirl the nicest girl]] in the series; honest, pure and compassionate. And then she starts seeing Makoto, falling in love with him. But when [[spoiler:he starts secretly having sex with Sekai]], Kotonoha starts to break, completely breaking after [[spoiler:Setsuna kisses Makoto right in front of her to let her know that their relationship was over. Not to mention she had seen Makoto and Sekai dancing at the couples dance the previous night, which caused Kotonoha a HeroicBSOD that led to her being raped by Taisuke]]. The result [[http://img217.imageshack.us/img217/2050/unrecuerdo.jpg is not pretty]]. You've been warned.
* In ''Manga/{{Naruto}}'', we have Konan, who used to be a cheerful young girl... then [[BreakTheCutie things]] happen.
* Misa Amane from ''Manga/DeathNote'' may or may not be a case of this. It's unclear which was the moment that made an AxCrazy {{Yandere}} out of her: the death of her parents when she was a little girl, or getting her hands on the ArtifactOfDoom mentioned in the [[TitleDrop title]].
* There's also Belarus from ''Webcomic/AxisPowersHetalia''. We see her in her, Russia's and Ukraine's backstory as a cute little girl who clings to her brother and pouts to her older sister. And then, we see her now, as a scary girl in a frilly ElegantGothicLolita dress...
* In ''Manga/DeadmanWonderland'', when we see Minatsuki's (Hummingbird) past before the earthquake, she comes around as a sweet, innocent girl who loved helping her mother out in her flower shop. Then, the earthquake came along, and she's trapped on the shop. What does her mother do? Grab a pot of flowers and [[ParentalAbandonment left her to die]]. And that's when she became [[AxCrazy as we know her now.]]

[[folder:Comic Books]]
* In ''ComicBook/ScottPilgrim'', this is the general consensus for Natalie V. "Envy" Adams, Scott's ex back when he was in university. She was a rather nice otaku girl and her relationship with Scott was quite a happy one. However, her success with Scott and Steven Stills' band ''Kid Chameleon'' began influencing her. She sold her otaku possessions for more expensive clothing while becoming less invested in her relationship with Scott. It gets worse as the band gets more people and she takes main control over it, steering to a direction where the others (namely the band's founders, Scott and Stephen Stills) were not happy with and there was even suspicion that Envy may have cheating on Scott. This all led to the disasterous breakup, [[spoiler: admittingly started by Scott where he ended in a big fight with her after getting drunk at a party, having no memory of the fight or even getting drunk]] and causing a good deal of heartbreak and emotional damage to Scott. It's telling that everyone calls her by her stage-name Envy while Scott remains the only person to call her by Natalie.
** Even taking into account [[spoiler:Scott's unreliable memory]], the general concensus among Scott's friends is they view her as more-or-less a bitch (except for Julie, who is attempting to use her newfound popularity and Knives, who was starstruck for a while.) Wallace is the largest example, having met her while in the later developments of her into a bad girl and recommended Scott dumped her immeditately. He was very angry to hear her returning.
** Ultimately, she stays as Envy though she does get closure with Scott and appreciates he still remembers her as Natalie.
* In ''ComicBook/SevenSoldiers: Bulleteer'', Sally Sonic is a former Golden Age heroine who became evil under the influence of an emotionally-manipulative boyfriend who drugged her up, forced her into doing porn, and later auctioned her off to supervillains. By the time she meets Bulleteer, the only thing that gives her any enjoyment is ruining other people's lives.

* Selina Kyle from the ''Comicbook/{{Batman}}'' comics is usually portrayed as a criminal who grew up on the streets. In ''Film/BatmanReturns'' she has a regular job and a home but hates her life and eventually snaps when her boss pushes her out of a window.
* Both female protagonists in ''Film/BrideWars'' become bad girls after their weddings get booked on the same date. And since, to them, weddings are SeriousBusiness, they each become obsessed with ruining the other one's great day.
* The main villain in ''Film/CharliesAngelsFullThrottle'' is [[spoiler: the former agent [[FallenHero Madison Lee]], who was an angel previous to the three protagonists and lost her path after leaving said position.]]
* Averted in ''Film/TheBadSeed''. Rhoda Penmark was never good; she's been evil literally from birth, and the mystery of why she's evil is part of the creepiness.
* In ''Film/TheGeneralsDaughter'', the titular character was an honor student at West Point--until [[spoiler:she was brutally [[RapeAsBackstory gang-raped]], and her father helped to cover it up]]. This led her to sexually act out as a form of revenge.

* Rachel from ''Literature/{{Animorphs}}''. She starts the series as a confident, poised and assertive young woman who excels in academics and gymnastics alike. But three years of fighting a guerrilla war gradually brings out the BloodKnight within her, and by the end she's a straight-up SociopathicSoldier.
* ''Literature/ASongOfIceAndFire'' has Cersei Lannister, enemy of the Starks and queen of Westeros. Back in her childhood memories (which we get from her [[VillainProtagonist POV chapters]] in the fourth book), Cersei behaved as a nice little lady as she was promised she'd be married to [[TheOneThatGotAway Prince Rhaegar]]. A visit to a fortune teller later told her that she wasn't going to marry the prince, but also that she [[spoiler:was going to have three children, and they would all die before she did, and her eventual death would come at the hands of her own younger brother.]] Also, after leaving the psychic, it's implied that she may have drowned her friend in a well in a desperate attempt to prevent the prophecy from coming true. Cersei's paranoia for the prophecy (combined with not being able to get over Rhaegar) is what turns her into the ManipulativeBitch we know today. Well, that and being raised by [[AbusiveParents Tywin]].
** Notably, Cersei was not much of a "good" girl even before the visit to the seer. From Jaime and Tyrion's recollections, she was bossy, selfish and cruel from an early age.
** Arya Stark can be seen as this. She went from a young noble girl who didn't want to be a lady to a [[LittleMissBadass little girl]] who has [[BloodKnight killed a lot of men]], despite her very young age. Not to mention [[spoiler:she's now on her way to become a magical assassin of sorts.]]
** Her mother Catelyn completely [[SanitySlippage loses it]] after the death of [[spoiler:Robb (plus, she assumed [[FakingTheDead Arya, Bran and Rickon]] were all dead as well), and after her ''own'' death and resurrection, going on a [[RoaringRampageOfRevenge killing spree]] against every Lannister and Frey on her way.]] So far, Sansa seems like the only Stark good girl left.
*** That may not be so, as the fourth book implies that she might have to [[spoiler:kill her cousin [[CreepyChild Robert]], or at least allow him to be killed by Littlefinger.]]
* Lorelei and Morwenna of ''Literature/{{Eludoran}}''.

[[folder:Live Action TV]]
* ''Series/AsTheWorldTurns'' did this with the character of Julia Lindsey Snyder, whose introduction to the soap was merely that of a {{Mary Sue}} nice girl. Julia oftentimes acted like a heroine initially (especially when David Stenbeck terrorized Oakdale), but was not particularly popular with fans since she was the third angle to a [[Main/LoveTriangle love triangle]] with [[Main/SuperCouple supercouple Jack and Carly]]. Once her marriage with Jack began to deteriorate, so did Julia's sanity until [[Main/RageBreakingPoint she suffered a miscarriage]] and she went full-on {{Yandere}}. In the storylines that followed, Julia was a [[Main/LampshadeHanging lampshaded]] psychopath who [[Main/AxCrazy played]] [[Main/WomanScorned out]] [[Main/NotGoodWithRejection pretty]] [[Main/BitchInSheepsClothing much]] [[Main/PsychopathicManchild every]] [[Main/CuteAndPsycho crazy]] [[Main/SlasherSmile trope]] [[Main/BewareTheNiceOnes to]] [[Main/EvilIsHammy extremes]].
* Bela Talbot from ''Series/{{Supernatural}}''. Even if we don't exactly know whether she was good or bad [[spoiler:before she made her deal with a demon]], it was certainly implied that she was somewhat innocent... [[spoiler:and being abused.]]
** Ruby qualifies as well. Before being the demon we know, [[spoiler:who eventually betrayed the Winchester brothers,]] she was [[spoiler:a human witch who lost her soul to the demon Tammi. The torture she underwent in hell, that eventually turned her into a demon as well, is responsable for making her a bad girl.]]
* ''Series/{{Heroes}}'' gives us Niki Sanders, although in her case she didn't turn into a bad girl, she developed a second personality that was a bad girl. So, there was good girl Niki and bad girl Jessica. Jessica took control over Niki's body, though, so she counts.
** And then there's Elle Bishop, a bad girl as result of [[CorruptTheCutie years of torture]] by [[AbusiveParents her own father]] since she was eight.
** The future version of Claire Bennet we see in Season 3 counts as well.
* In ''Series/{{Gossip Girl}}'' Jenny Humphrey, possibly the most innocent character of them all, is [[spoiler: [[NearRapeExperience nearly raped]]]] and gradually transforms first into a bad girl and by season four is even something of a villain. She mostly learns her lesson though after [[spoiler: loosing her virginity to Chuck, her own would-be rapist from before]] at the end of season three.
** Serena is a very bad girl who went very good.
* In the fourth season of ''Series/{{Chuck}}'' [[spoiler: Vivian Winterbottom]], a sweet, naive character, is [[CorruptTheCutie manipulated]] into [[spoiler: following in her father's footsteps]] after being hurt by both him and the show's heroes. In the end [[spoiler: her father himself is able to redeem her]].
* [[DarkActionGirl Faith]] from ''Series/BuffyTheVampireSlayer'' fits this trope perfectly, although she [[HeelFaceTurn gets better]] after appearing in ''Series/{{Angel}}'' and [[spoiler: turning herself in to the police.]]
** Also, [[spoiler: [[FaceHeelTurn Willow]]]] after the death of [[spoiler: Tara]] on the episode "Seeing Red".
* Inverted with Claire from ''Series/ModernFamily'', who makes sure her daughter doesn't [[FormerTeenRebel make the same mistakes she did]].
* Regina Mills from ''Series/{{Once Upon a Time}}'' is a clear example of this, after [[spoiler:her mother killed Daniel, the man she truly loved, in order for Regina to marry the king.]]
* The final season of ''Series/{{Lost}}'' reveals that [[spoiler:Claire has become this. She becomes good again in the end, however.]]
* Subverted in "Last Whiff of Summer", the [[MultiPartEpisode two-part]] fourth season premiere of ''Series/TheMiddle''. Sue realizes that even the negative attention her older brother gets is attention, and decides to start going bad to get some of that from her parents. However, the transgressions she comes up with—not wearing her [[BracesOfOrthodonticOverkill headgear]] at night, wearing a red hair extension, and not taking her multivitamins—aren't really that serious. Double subverted by her parents not noticing or caring.
* Morgana from ''Series/{{Merlin 2008}}'' discovers she has magic in a kingdom where it's punishable by death, lives in terror of her guardian the king, tries to run away only to be brought back again, can't prevent her powers from manifesting, becomes estranged from all her friends, meets her half-sister who places her under a spell that causes all of Camelot to fall asleep, and is poisoned by a friend she trusted in order to break the enchantment. She comes back after a year's absence with a few bones to pick...
* [[spoiler: Quinn]] from ''Series/{{Glee}}'' becomes this in the beginning of the third season, due to the events at the end of the second season, complete with whole new look: pink-dyed hair, piercings and cigarette in hand, she is the complete opposite of her old self.
* ''Series/PrettyLittleLiars'': Alison is strongly implied to be this prior to meeting [=CeCe=]. In one of the webisodes, Jason tells Cece that Ali was just a [[UsedToBeASweetKid little girl]] until she came along and made her [[ManipulativeBitch what she was prior to her disappearance]].
** As of the season two finale, [[spoiler: Mona]] fits this trope to a T.
** And Meredith. [[PsychoExGirlfriend Dear]] [[LoveMakesYouCrazy God]], [[{{Yandere}} Meredith]].
* Subverted by Sara Tancredi from ''Series/PrisonBreak'', who was a good girl before she got hooked on drugs, as revealed through flashbacks dating prior to Lincoln's arrest. Her father even had to use his influence to prevent it from going on her record. It is only after [[DespairEventHorizon she is unable to save a life due to being drugged at the time]] that she decides to straighten up and get over her addiction.
** On the second season, while she's on the run with Michael and Lincoln, she is classified as this again.
* In ''Series/TrueBlood'', [[OurWerewolvesAreDifferent Debbie]] after getting hooked on V (aka vampire blood). We also have Jessica, who's not evil or anything, but before being turned into a vampire she was a good girl who went to church and classes and obeyed everything [[AbusiveParents her father]] told her, and now she's a blood-thirsty vampire so... you can see how she might fit in here.

* Invoked by {{Music/Rihanna}} with her album ''Good Girl Gone Bad'', which provides the page quote.

[[folder:Web Comics]]
* Damara Megido from ''Webcomic/{{Homestuck}}'' was apparently fairly nice in the early stages, but following something of a bad breakup she went AxCrazy.
* White Mage from Webcomic/EightBitTheater tries to embrace this when (after talking to [[TooDumbToLive Fighter]] of all people) she starts to blame herself for all the damage done by the Light Warriors and her inability to do much good in the world. However, her greatest attempts at villainy are really just PokeThePoodle moments and Fighter (again) convinces her to switch alignments ''back'' to LawfulGood.