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[[quoteright:350:[[WesternAnimation/AvengersEarthsMightiestHeroes http://static.tvtropes.org/pmwiki/pub/images/Avengers_wNew_Girl_5431.jpg]]]]
[-[[caption-width-right:350:"[[TheWasp I'm]] just glad there's finally [[ComicBook/MsMarvel another girl]] on the team!"[[note]]The top picture illustrates how the roster (and EvolvingCredits) looked in episodes 27-30, while the bottom comes from episodes 31-33.[[/note]]]]-]

->'''Wonder Woman:''' [[OhMyGods Athena knows]] the League could use more female members.\\
'''Black Canary:''' Agreed.\\
'''Hawkwoman:''' Hear, hear!
-->-- ''WesternAnimation/YoungJustice''

A female character added to a new season, spinoff or sequel to balance out the sexes.

If she's the first female in a previously all-male cast, this is just TheSmurfettePrinciple at work and she's probably TheChick or TheHeart. But if she's added when there's already a (single) female in the cast, to counter the Smurfette Principle by adding more gender balance, then she's an Affirmative Action Girl. When this trope was in its formative stages (when Affirmative Action was still working its way into action-oriented fiction), such characters were usually {{Straw Feminist}}s to boot. For bonus points, she might be a [[TwoferTokenMinority racial minority]] as well.

Note that despite the PunnyName, she need not be an ActionGirl, but usually is at least a {{Tomboy}} to [[TomboyAndGirlyGirl distinguish her]] from a pre-existing [[TheChick Chick]].

If [[CharacterDevelopment used well]], she can genuinely enrich the story. But if she's just ''there'' and has no characterization or CharacterDevelopment, she merely becomes a MarySue, or a CreatorsPet for everyone to hate.

See also AffirmativeActionLegacy and TwoGirlsToATeam.

----
!!Examples:

[[foldercontrol]]

[[folder:Advertising]]
* In 2012, during one of the famous {{Superbowl}} commercials, M&M maker Mars introduced Ms. Brown, an icy businesswoman voiced by Vanessa Williams, to go with the other M&M "spokescandies". Brown was the last regular color to be characterized, and since Green was the only other female out of the set, it seems Mars wanted to kill two birds with one stone.
[[/folder]]

[[folder:{{Anime}} and {{Manga}}]]
* In ''Anime/DigimonAdventure'', [[ShortTank Sora]] and [[TheDitz Mimi]] were the only two girls on a seven-person team, until the introduction of Hikari, cute little sister of the male lead. ''Anime/DigimonTamers'' had a slew of {{Sixth Ranger}}s, going from a cast of three with one girl to a cast of ''ten'' with near-equality.
* Allenby Beardsley from ''Anime/MobileFighterGGundam''. A fan favorite SixthRanger GenkiGirl and {{Bokukko}} who promptly managed to fall into a LoveTriangle involving the only other major female character on the show, the local HotScientist and TeamMom. Also, a relief to the male fans that were [[StupidSexyFlanders getting uncomfortable]] with the all-male pilots wearing {{Latex Space Suit}}s.
** Rain herself becomes a secondary AffirmativeActionGirl later, when [[spoiler:Allenby is BrainwashedAndCrazy and she takes up the task of DefusingTheTykebomb]]. She already had hints of it the beginning, though, being able to withstand the "painful" suiting up process and handling the Shining Gundam in Shinjuku despite lack of specific training.
* Hilde Schbeiker from ''Anime/MobileSuitGundamWing''. Though she's a rather decent pilot ''and'' had military background prior to befriending Duo, she was mostly there to balance the ratio for a while and become the local WrenchWench.
* In the original ''Manga/YuGiOh'' manga, Miho was a minor character with sporadic appearances. [[AscendedExtra She was made into one of the lead characters]] in the first ''Anime/YuGiOh'' TV series, possibly to prevent Anzu from being the only girl in the main cast.
* Textbook example in ''BBSenshiSangokuden'': the second named female character Sonshoukou Gerbera is the resident tomboy, and the first, Chousen Qubeley, is TheChick complete with healthy relationship to Ryofu Tallgeese, [[spoiler:and gets StuffedInTheFridge for it]].
* Prime Minister Kayabuki in ''GhostInTheShellStandAloneComplex''. Probably counts as TheChick to the Major's ActionGirl, although to be fair, she does get to be quite awesome in her own non-violent, office-based way.
* In ''PokemonSpecial'', [[TheMedic Yellow]] is added to the roster of Kanto Dex Holders during the second arc of the series, except that [[SamusIsAGirl nobody knew she was a girl at first]].
* While ''Manga/DragonBall'' always had a few female characters scattered throughout the supporting cast, the anime-only ''Anime/DragonBallGT'' was the only time a girl regularly joined in on the world-saving: Pan, Goku's granddaughter.
[[/folder]]

[[folder:Comic Books]]
* The inclusion of the Golden Age Wonder Woman in the JusticeSocietyOfAmerica could count like that. The team was founded just by male heroes.
** The 2012 JSA reboot makes [[{{Hawkman}} Hawkgirl]] into a founding member. Bonus points since she's a Latina [[TwoferTokenMinority as well]].
* During ''[[SuperheroSchool Super School's]]'' first run in ''TheBeano'' there were originally four super kids three male one female and then ComicStrip/{{Banana|man}}girl was added to the cast balancing the sexes quite a bit.
[[/folder]]

[[folder:Fan Fic]]
* In ''FanFic/CrownsOfTheKingdom'', Daisy joins the party a bit later than Minnie.
[[/folder]]

[[folder:Films -- Animated]]
* Most of the cast of the first ''WesternAnimation/ToyStory'' was, well, a collection of boy's toys. The only female character, Bo Peep, was fairly minor and only existed because the boy shared a room with his baby sister (and so Woody could have a LoveInterest). In WesternAnimation/ToyStory2, Mrs. Potato Head was also fairly minor, but Jessie was one of the mains. WesternAnimation/ToyStory3 gives Mrs. Potato Head a larger role, and also adds {{Franchise/Barbie}}, though Bo Peep was actually cut entirely.
** In Barbie's case, it was also the fact that the movies had permission to use the character for the first time. Originally, Bo Peep (the aforementioned only female character in the first movie) was supposed to be a Barbie, but Mattel refused. It wasn't until they saw how the movies caused sales of Mr. Potato Head toys to spike that they agreed.
* [[GenderFlip Ms. Li]] from ''WesternAnimation/BatmanUnderTheRedHood''. She's also [[SparedByTheAdaptation spared the gorey death of]] her SpearCounterPart, Mr. Li, and instead just ends up BoundAndGagged at the end.
[[/folder]]

[[folder:Films -- Live-Action]]
* Sanabi, in the live-action ''Manga/DeathNote'' [[TheMovie movies]]. Similarly, the role of [[spoiler:the Third Kira]] was given to an adapted version of (attractive twenty-something female) Kiyomi Takada, originally [[spoiler:merely a Kira-supporter and a go-between for Light and Teru Mikami (the fourth Kira)]], when character-wise, an adapted version of (unattractive older male) [[spoiler:Kyosuke Higuchi]] would have worked just as well, although in Takada's defense, she ''had'' a role in the live-action story.
* The film adaptation of ''Voyage of the Dawn Treader'' adds a second girl to the crew - Gael, a girl who stows away after her mother is kidnapped. This would have created a PlotHole for when the Dufflepuds kidnap Lucy as in the book, they do so because only a girl can read the spell to free them. However the film remedies it by having one of the Dufflepuds note that Gael is also a girl but that Lucy has a book next to her, indicating she knows how to read.
* Arwen's role in ''Film/TheLordOfTheRings'' is expanded considerably, compared to the books. Glorfindel's ride to bring Frodo to Rivendell is given to Arwen, along with several other changes, to make her both an ActionGirl and an AffirmativeActionGirl.
** And also according to [[WordOfGod the commentaries]], to avoid introducing [[LoadsAndLoadsOfCharacters a new named character who will have 2 total minutes of screen time]].
* Tia Dalma, a minor character in the second ''Franchise/PiratesOfTheCaribbean'' movie, joins the crew in ''At World's End'' so that Elizabeth isn't the only woman on the ship (since Anamaria vanished in ''Dead Man's Chest'').
* In the adaption of ''Film/{{SWAT}}'', a new character was added, Chris Sanchez, a woman who has repeatedly applied to join SWAT but was rejected for being a girl, with her number of police brutality accusations (Actually just perps who were embaressed at beingtaken down by a girl) given as a reason for not allowing her to join. and Then came Creator/SamuelLJackson...
[[/folder]]

[[folder:Literature]]
* ''Literature/HarryPotterAndTheOrderOfThePhoenix'' adds Tonks to the team of good badass adults we're used to as well as Ginny Weasley and Luna Lovegood to the main group. Although Ginny was in the story before this book, she was just a background character who had no real impact on storylines. Here she becomes a proper ActionGirl and joins Harry, Ron, Hermione and Neville in the fight in the Ministry. Luna as well then makes the main group have three girls and three boys.
** On the evil side we originally had [[PsychoSupporter Bellatrix]] as the TheDarkChick. Alecto Carrow then appears as another female Death Eater, but this trope fits Bellatrix's sister [[MamaBear Narcissa]] better; she technically appeared earlier and she's only the wife of a villain, but her role gets greatly expanded in the final two books, culminating in [[spoiler:a HeelFaceTurn that allows Harry to kill Voldemort]].
** Ginny technically does this twice. She becomes important in the second book but is reduced to background character for the next two before officially becoming prominent permanently from the fifth book onwards.
* ''Literature/{{Phenomena}}'': Even though Millian first appears in the 3rd book does she have an unique personality and is a good addition to the series and has many fans.
* The second book of ''ASongOfIceAndFire'', ''A Clash of Kings'', introduces many female warriors into the already large cast of characters, including [[DarkActionGirl Asha Greyjoy]], [[SamusIsAGirl Brienne of Tarth]], [[FieryRedhead Ygritte]], [[CoolBigSis Meera Reed]], as well as fire priestess [[HotWitch Melisandre]]. Martin explores how each fits into the male-dominated world of Westeros. The fourth book, ''A Feast for Crows'', also introduces the Sand Snakes, a group of sisters who were brought up to be badasses by their father.
* Used in-universe in ''Literature/ArtemisFowl''. Holly Short is the only female officer on the [=LEPRecon=] force (there is another one, but she's a complete bimbo and serves as a PR move due to distant ancestry with a fairy king), and feels greatly put upon by her boss for being a girl. He quickly reveals that this is indeed the case... but because he knows she can take it, being better than all the other male officers, and if she succeeds the LEP will finally allow more women to join.
* ''Literature/TheHeroesOfOlympus'':
** While a good majority of the characters in the original series were Caucasian, of the five new heroes, one is Native American, one is Latino, one is African American, one is Chinese-Canadian and only one is white.
** And now Reyna is confirmed to be Puerto Rican, meaning the Romans are led by a woman of color. Which given the ethnicities of assorted Emperors is not as big a deal as it seems to be - except for the 'woman' part.
[[/folder]]

[[folder:Live Action TV]]
* The fourth season of ''Series/LawAndOrder'' had Dann Florek and Richard Brooks replaced by S. Epatha Merkerson and Jill Hennessy due to [[ExecutiveMeddling NBC's request that Dick Wolf add female cast members to the show.]] Considering that Merkerson was still on the show 15 years later and that Hennessy is widely considered to be the best of [=McCoy=]'s assistants (sometimes tossed up against Angie Harmon), this is a rare case where ExecutiveMeddling worked out for the best.
* There's also Trini Kwan, the Yellow Ranger / GranolaGirl from ''Series/MightyMorphinPowerRangers''. In the original Japanese version, ''Series/KyoryuSentaiZyuranger'', there was only [[TheChick one girl]] on the team (Mei/Ptera Ranger). [[ShesAManInJapan The Yellow Ranger was a guy]] (Boy/Tiger Ranger).
** Speaking of original Japanese versions, ''Franchise/SuperSentai'' started the practice with ''Series/ChoudenshiBioman'', but from then it swings back and forth between playing the trope straight and averting it (of the 28 seasons since then, 13 ran on TheSmurfettePrinciple). ''Series/EngineSentaiGoOnger'' played with this by starting off only with Saki Rouyama (Go-on Yellow), then introducing Miu Sutou (Go-on Silver), the first ever female Ranger with SixthRanger status.
** Getting back to ''Franchise/PowerRangers'', the same ShesAManInJapan practice applied to Trini was applied in later seasons: ''[[Series/PowerRangersLostGalaxy Lost Galaxy]]'' had Maya (replacing ''Series/SeijuuSentaiGingaman'' 's Hikaru), ''[[Series/PowerRangersLightspeedRescue Lightspeed Rescue]]'' had Kelsey Winslow (in the place of Daimon Tatsumi from ''Series/RescueSentaiGoGoFive''), ''[[Series/PowerRangersTimeForce Time Force]]'' had Katie Walker (replacing Domon from ''Series/MiraiSentaiTimeranger'') and ''[[Series/PowerRangersWildForce Wild Force]]'' had Taylor Earhardt (replacing ''Series/HyakujuuSentaiGaoranger'' 's Gaku Washio). Coincidentally or not, these were all Yellow Rangers like Trini.
** One could make a case for Aisha Campbell as well (Trini's direct replacement after she was PutOnABus); even though the Yellow Ranger, by now, was a bit more "girly", the corresponding Sentai still has her in the place of a guy (Kazu/Kirin Ranger from ''Series/GoseiSentaiDairanger'').
* Samantha Carter was living large as [[TheChick the sole estrogen representative]] of ''Series/StargateSG1''. And then along comes Vala Mal Doran, who ironically was more of a [[TheChick Chick]] than [[TheSmartGuy Carter]] ever was.
** Sam never really filled the role of TheChick, despite being initially the only girl. Instead, [[NonActionGuy Daniel]] [[TookALevelInBadass Jackson]] functioned as TheHeart, while Sam was the resident ActionGirl and OmnidisciplinaryScientist.
* Not exactly balancing out the gender [[DepartmentOfRedundancyDepartment balance]], Shuki from Series/KamenRiderHibiki was a lot more competent and stayed on the show longer than [[Series/KamenRiderBlade Larc]] and [[Series/KamenRiderRyuki Femme]]. [[spoiler:And by longer, we mean two episodes as opposed to just thirty minutes]].
** Femme's [[Series/KamenRiderDragonKnight American counterpart]], Siren, lasted much longer and had a much bigger role.
* Venus de Milo, the female [[Series/NinjaTurtlesTheNextMutation Ninja Turtle]]. [[CanonDisContinuity Then again]]...
* In the third season of ''Series/{{Alias}}'', Sidney's sister Nadia was introduced. She didn't stick around for long, though...
* ''Series/{{Flashpoint}}'' was recently a victim of this. With the death of its [[BlackDudeDiesFirst sole black team member]], the team replaces him with a black woman this time. Averts TheSmurfettePrinciple with the presence of Jules Callaghan, though prior to the new girl, she represented that trope.
* Season two of ''HumanTarget'' added two new female characters to balance out the original three male main characters.
* Caitlin joins the guys in the second season of ''Series/{{Airwolf}}''.
* The end of the second season of ''Series/RobinHood'' saw the departure of [[OneTruePairing Marian]] and [[ActionGirl Djaq]]. The writers unsuccessfully tried to compensate in the third series by introducing [[DerailingLoveInterests Isabella]] and [[CreatorsPet Kate]] to take their place as Robin's LoveInterest and the TokenGirl respectively.
* Inverted on ''Series/TheSarahJaneAdventures''. In the original pilot, the gender ratio was three females (Sarah Jane, Kelsey, and Maria) to one male (Luke). When the series began, Kelsey had been replaced with Clyde to balance out the gender ratio (and because Kelsey's actress was rather difficult.)
* The ''Series/HawaiiFive0'' reboot/remake changed Kono into a chick, because, well, they needed a chick.
** Grace Park seems to be making a career out of this (c.f. Boomer in ''Series/{{Battlestar Galactica|Reimagined}}'').
* Speaking of ''Series/{{Battlestar Galactica|Classic}}'', the show only had [[BridgeBunny Athena]] and [[HospitalHottie Cassiopeia]] in the main roster. Sheba was not added until halfway through the show.
** While the reimagined ''Battlestar Galactica'' had two women among the main pilots from Day One (Kara as TheAce and Sharon as TheChick), of the three "nuggets" added partway through Season 1, Kat was the one who got the most screen time and character development.
* GenderFlipped in ''Series/{{Warehouse 13}}'' the original cast was Mrs.Fredrickson Mika, Leena, Artie, Pete, with Claudia joining after a few episodes in making it 4 girls and 2 guys. Season 2 introduced [[spoiler: female]] H.G. Wells then dropped that character at the end of the season and has introduced Agent Jinks in Season 3 making 4 girls and 3 guys. [[spoiler:5 girls and 3 guys if you count H.G. Wells who is CommutingOnABus]]
* ''Series/TheBigBangTheory'' starts out with 4 different geeks and [[TheChick the one chick]] across the hall. After almost 3 years of seeing TheSmurfettePrinciple in action (and [[spoiler:2 failed relationship attempts between TheChick and the DoggedNiceGuy]]), two new main female characters are brought in that help balance the two more socially extreme geeks of the group and the gender ratio in general.
* GenderFlipped in ''Series/{{Charmed}}'' as the ratio was typically the three sisters and one male character. Andy filled this role in season 1 but then season 2 replaced Andy with Dan and gave Daryl and Leo more prominent roles. Cole got added in season 3, making the main cast an even split of 3 men and 3 women.
* Another Gender Flip in ''H2OJustAddWater'' with a lead cast of three girls and one guy. Season 2 adds Zane to the opening credits and then season 3 adds Will (though dropping Louis as well).
* {{Inverted|Trope}} on ''Series/MythBusters''; when the Build Team began to be shown on camera, there were ''two'' women: Kari Byron and [[GenderBlenderName Scottie]] Chapman. Scottie [[ThePeteBest left after a year or two]], and was replaced by Grant Imahara, leaving Kari as the lone female [=MythBuster=]. A couple of female [=MythTerns=] have been on the show (one of which, Jess Nelson, could be considered a straight example as she joined with the FiveManBand in the current configuration), but they typically doesn't last much longer than a year.
[[/folder]]

[[folder:Fan Fiction]]
* In the actual SamuraiSeven anime series every single warrior in it is male. Thus, certain fan fics for it actually did include female fighters.
[[/folder]]

[[folder:Theatre]]
* ''Theatre/SpiderManTurnOffTheDark'' introduces a CanonForeigner villainess named Swiss Miss as a member of the [[LegionOfDoom Sinister Six]]. Note that in the first iteration of the play, Miss Arrow [[{{Lampshaded}} explicitly states]] she created the character because she felt the team could use a woman.
* The ''Marvel Universe LIVE!'' stage show uses the same [[Comicbook/TheAvengers Avengers]] line-up as the [[Film/TheAvengers the movie]], with the exceptions of TheFalcon and [[MsMarvel Captain Marvel]], who were added so that the team could have a [[MonochromeCasting non-white hero]] and [[TheSmurfettePrinciple another woman]], respectively.
[[/folder]]

[[folder:Video Games]]
* Despite the LoadsAndLoadsOfCharacters in ''VideoGame/{{Xenogears}}'', only a handful of the ones that are significant to the plot are female. The first fifty-odd hours will lead one to think that Elly is destined to be the game's playable Smurfette compared to the five guys Fei, Citan, Bart, Rico, and Billy, only being mitigated somewhat with Miang as the DarkMistress to Ramsus's presumptive BigBad, Margie as a non-playable PluckyGirl, and the all-female QuirkyMinibossSquad. Then, after completing the Shevat story arc near the end of the first disc, three female playable characters in a row are added: KidWithTheRemoteControl Maria, SmallAnnoyingCreature Chu-Chu, and [[spoiler: ArtificialHuman]] Emeralda.
** Also, there turns out to be more to [[spoiler: Miang]] than what the player is told at first. [[spoiler: She is not only manipulating Ramsus from behind the scenes, but has been doing the same to the whole world for 10,000 years--she is one of the two {{BigBad}}s in the story and for all intents and purposes, [[GodInHumanForm the physical avatar of their world's god.]]]]
* Sharla is this for most of ''VideoGame/{{Xenoblade}}'', [[spoiler:until Fiora comes back as a HollywoodCyborg.]]
* The female Archer from ''[[VideoGame/{{Gauntlet}} Gauntlet Legends]]'' replaced the male Elf.
* Typically, the only female recurring character in the ''SuperMarioBros'' series is Peach. In the spin offs, they literally throw in as many female characters as they can find. While many of the additional characters in the Mario Spin Offs (Daisy, Baby Peach, and possibly Rosalina) could be accused of being Affirmative Action Girls, only Toadette and Baby Daisy were created specifically for this purpose.
* The original ''MetalSlug'' had two characters, the guys Marco and Tarma. ''MetalSlug 2'' revealed their female counterparts, Fio and Eri. Fio and Eri have stuck around ever since... except for when Tarma and Eri were put on a different mission in ''Metal Slug 4'' and replaced with Trevor and Nadia.
* The original version of ''VideoGame/FinalFantasyIII'' had a party of four generic boys. The [[VideoGameRemake remake]] changes the blue Onion Knight to a girl.
** Surreally, Dissidia makes its onion knight male, anyway, worried that having a whopping ''five'' of its twenty-four characters female would be far too many. Its sequel works the other direction, introducing eight new characters, four of them female.
* In ''VideoGame/{{Warcraft}} III'', female units would usually be relegated to supporting magical roles (sorceresses for Humans[=/=]High Elves and Banshees for Undead), up until Night Elves had females filling all the primary attack unit roles. The expansion adds the Night Elf Warden, the only female melee hero in the game.
** Also, the expansion pack for ''Warcraft II'' added Alleria Windrunner, an elven ranger hero and the only female unit, to the story.
* In the original {{Nintendo 64}} version of ''DiddyKongRacing,'' the only female character was Pipsy the mouse. In order to even the balance a bit (and fill the empty spots left by characters Nintendo no longer had permission to use, along with making the game less of an InNameOnly addition to the ''VideoGame/DonkeyKongCountry'' franchise), Diddy's girlfriend Dixie Kong and her younger sister Tiny Kong were added to the {{Nintendo DS}} version.
* In ''VideoGame/FinalFantasyIX'' Freya and Eiko (and Quina depending on your views) fill these roles. Your base party had just Garnet as the only girl and she was pretty useless at that point, only being useful as TheMedic. Freya is the first fifth party member you get (as a main character rather than just guest party members) and is the first other female main character to be introduced in the story. Eiko then joins the group halfway through the second disk where Garnet is again the only girl on the team. Beatrix also joins the group as a guest party member for a fight early on disk 3.
* Aqua in ''VideoGame/KingdomHeartsBirthBySleep'' is the franchise's first properly playable female character (not just a bonus addition like Larxene or Xion in multiplayer). And she is awesome.
* Viola of ''Stationery Voyagers''. It was strongly implied that Neone would join shortly after the first launch, so she doesn't count. But Viola appears from seemingly out of nowhere in the second season, and quickly convinces the team to let her join, [[SoulBrotha in spite her eccentricities]] being confusing to them.
** She was created 1) so that [[FaceOfTheBand Oceanoe]] [[RelationshipSue could have a girlfriend]] and 2) so that Pinkella [[CopyCatSue wouldn't be only Gel Pen]] aboard the ''Bindaf 3000''. She was also created 3) for color diversity, since the original lineup of colors were all ''Franchise/PowerRangers'' colors and the author didn't want anyone to mistake the two shows for having [[FollowTheLeader any relation]].
*** An exercise rendered moot when ''Series/PowerRangersJungleFury'' came out, what with its Purple Ranger and all; [[FailureIsTheOnlyOption sigh]].
** To be fair, she tries hard ''[[DefiedTrope not to]]'' [[BlackHoleSue steal the spotlight]].
* ''VideoGame/LeagueOfLegends'': While there are females of all stripes in the roster, fans in the past have noticed a lack of females in certain roles and petitioned Riot to do something about it, only to [[ReasonableAuthorityFigure have them listen and add a suitable champion]]. A good example is Leona, created to answer to answer the fan's requests for a female tank, a very well-received. GenderFlipped with Graves, who was created due to fans noting a lack of [[RatedMForManly masculine]] marksman-type characters. When both his moveset and character were revealed to approach marksmanship in the most manly way possible, the fans were again pleased.
[[/folder]]

[[folder:Web Animation]]
* Failed attempt: The creators of ''WebAnimation/HomestarRunner'' tried on a few occasions to develop other female characters for the site to supplement Marzipan; none ever saw the light of day, except in a bonus short on the DVD appropriately titled "Why Come Only One Girl?" They eventually gave up, deciding that the sub-feature ''WebAnimation/TeenGirlSquad'' would be their new female outlet.
* In-continuity, Bethany of The Escapist's Game Dogs is literally this-in spite of a behavioral record as long as any arm you'd care to present, stuffed full of reprimands for violence that would get anyone else fired twenty-seven times over, she keeps her job explicitly because of affirmative action rules mandating a certain number of female and minority employees. Outside of continuity, they probably thought they were doing this tongue-in-cheekly by making her actually the only girl. Color me unimpressed.
* Tex from ''Machinima/RedVsBlue''. While she didn't balance out the sexes, throughout the whole show she has consistently been, by far, the biggest {{Badass}} of the series, at one point delivering [[CurbStompBattle a merciless smackdown]] against the Reds and Tucker at the same time without taking a hit.
** ''Red Vs Blue'' usually avoids the negative aspects of the trope: particularly with Season 9, more and more female characters have been added, and they, as well as Tex, have been a major impact on the plot and have become well-developed characters. However, Sister's inclusion in Season 5 smacks of the downside: she's promiscuous, stupid, and female, and that's really all there is to her character. This may be why she [[WhatHappenedToTheMouse hasn't been seen]] since the beginning of Season 6.
[[/folder]]

[[folder:Webcomics]]
* Zoe's inclusion into ''Webcomic/SluggyFreelance'' (she's the first female character with any dialogue) after Riff comments, "This strip needs women." It's a lesser example because she appeared when the strip was only a month old, and Pete Abrams claims he'd had her character planned from the beginning.
** The revelation that Aylee is female made her the AffirmativeActionGirl.
* ''Webcomic/TheOrderOfTheStick'' begins with just one female, Haley (unless you count [[AmbiguousGender gender-indeterminate]] Vaarsuvius). In strip #43, they meet "The Linear Guild", their first set of antagonists, which includes two women, Sabine and Hilgya. Hilgya soon leaves, and Celia the air elemental law student is introduced. She goes on to become a much more important character, as does Sabine, who sticks around with her boyfriend Nale after the rest of the Linear Guild breaks up. Another female character is added in strip #200, the stuck-up paladin Miko. Xykon the lich's army starts out apparently all male, but gets an infusion of estrogen in the form of [[ILoveTheDead Tsukiko]] right before Miko [[spoiler:lets her paranoia get the best of her and dies.]] Later we meet the AscendedExtra Kazumi Kato, and her boyfriend and eventually husband Daigo. The female paladin Lien also plays a supporting role. Intrigue among the exiled paladins and their people also introduces Lord Kubota as a villain, his female ninja protege Therkla, and the male imp Qarr. And it goes on from there. OOTS goes from Smurfette Principle beginnings to a nearly equally-balanced cast.
[[/folder]]

[[folder:Western Animation]]
* Petunia the rhubarb, from ''WesternAnimation/VeggieTales''.
* The second season of ''WesternAnimation/AvatarTheLastAirbender''. Until then, Katara was the only female in the [[ThreeAmigos main cast]]. Then [[DarkActionGirl Azula]], [[EmoTeen Mai]], [[CloudCuckoolander Ty Lee]] and [[CuteBruiser Toph]] all arrive in the first six episodes, and suddenly the gender ratio for main and recurring characters is four male, five female.
** Though she appeared as a minor character in season one, Suki may also count as seasons two and three increase her prominence.
** Incidentally, Toph and Azula were [[WhatCouldHaveBeen originally concieved as guys.]] The genders were swapped somewhere down the line, presumably to let this trope happen, and because swapping Toph's gender was hilarious.
* Ellen Yin was the sole major female character for the first couple of seasons of ''WesternAnimation/TheBatman''. Unsurprisingly, she was written out of the show around the time ComicBook/{{Batgirl}} was introduced as a main character.
** The show's version of the Terrible Trio had Vulture [[GenderFlip portrayed as a woman]] so that the group wouldn't be entirely male.
* According to BruceTimm, ComicBook/{{Batgirl}} was [[AscendedExtra made into a main character]] in ''[[WesternAnimation/BatmanTheAnimatedSeries The New Batman Adventures]]'' because the network thought adding a a girl to the main cast would help court female viewers.
* Skeeter in ''MuppetBabies'', as Miss Piggy was the only major recurring female on the parent series, ''TheMuppetShow''. (For the record, there weren't very many minor recurring females on the Muppet Show, either. There was really just Janice, who was part of the rock band. On the other hand, Animal was part of the band, too, and they used him regardless.)
** And Camilla (the chicken, and Gonzo's love interest).
*** Camilla also appeared in the cartoon as a stuffed doll that interacted with the other characters whenever they'd have their imagination sequences. Like when they did an episode on Greek mythology and needed a third female for the goddesses' contest with Paris.
*** She was Aphrodite, goddess of beauty. [[HilarityEnsues Guess how the other girls took that]].
* The Geek in ''WesternAnimation/SamAndMaxFreelancePolice''. Put in as a compromise - the executives wanted a female main character and their original idea was to make Max female (which would never work as Sam And Max are HeterosexualLifePartners with the occasional moment of HoYay). Luckily she hardly had any effect on the show. The silly thing is there are plenty of female characters in Sam And Max, but the network wanted one as a main character.
* Kip Kangaroo in the second season of ''Shirt Tales''.
* [[InvertedTrope Inversion]]: In the AnimatedAdaptation of ''WesternAnimation/{{WITCH}}'', the producers added Blunk to increase the number of male characters (originally, they had only TheOneGuy in Caleb). Also in the second season, Matt (Will's boyfriend) was given a much bigger role, making them affirmative action ''guys''.
* Hawkgirl from ''JusticeLeague'' was added because the network wanted one more female character besides Wonder Woman. It worked out, though, because despite her relative lack of notoriety in the original comics, she ended up becoming one of the most significant (in both [[EnsembleDarkhorse a good way]] and [[CreatorsPet a bad way]], according to the BrokenBase) in the series, and even led to her being used more in the mainstream DC universe, which in turn was because [[{{DCAU}} Timm and Dini]] are just that good. They are in fact ''so good'' that TheMovie is entirely centered around her origins and race, and even when [[spoiler:she leaves the team]] she's ''still'' a huge deal later on.
* Sassette in ''WesternAnimation/TheSmurfs'', who was a tomboy compared to Smurfette's [[TheChick Chick]].
* Dr. Hutchinson of ''RockosModernLife'' was created originally for this purpose--the writers were told they needed "a professional woman [...] with a good hook." (They [[HookHand took that a bit more literally than intended]].) Though reluctant at first, they eventually grew fond of her and created a storyline where she dates and marries Filbert.
** And in Wacky Deli, a show-within-a-show from one particularly memorable episode, the three main characters each come up with their own characters for the show. Rocko's is introduced simply as "This here's Betty Bologna. She's a girl!". It is unlikely that he had any other plans for the character aside from being a token female.
* For most of ''{{Reboot}}'s'' run in the first two seasons, the main cast had a ratio of about 4-1. (Megabyte, Bob, Enzo and Phong to Dot.) Towards the end of the second season, likely to give Enzo somebody to talk to, [=AndrAIa=] the game sprite is introduced. Afterward, series guest stars Hexadecimal and Mouse are given larger roles and made into regulars.
* Angela from ''WesternAnimation/{{Gargoyles}}'', added in Season 2. All the gargoyles were male except for Demona, who was a villain. Elisa was the existing female character, but she's not a gargoyle and therefore [[OvershadowedByAwesome not quite as action-y]], despite being a police officer and often participating in combat.
** In the original series pitch, there were apparently two female gargoyles in the main cast--Coco, who was forced by ExecutiveMeddling to evolve into Broadway because they didn't like the idea of an overweight female as a main character, and Dakota, the original leader of the clan, who was dropped for being very boring. It's worth noting that neither character was stuck in limbo permanently: Coco was brought back in the comic continuation as a member of the London Clan, and Dakota went back to the drawing board and got retooled into a villain, under the name [[BigBad Demona]].
* [[Film/SpaceJam Lola Bunny]]. She basically existed because of how few notable female Looney Tunes there were (having Granny play basketball would be pushing suspension of disbelief, and Petunia Pig is seriously obscure). They found a gender-neutral niche for her in the comic books, and eventually turned her into a CloudCuckoolander and StalkerWithACrush for ''TheLooneyTunesShow''.
** Ironically, the character introduced solely to be Daffy Duck's girlfriend, Tina, is the AffirmativeActionGirl for ''TheLooneyTunesShow'' itself -- and is more well-received than this incarnation of Lola.
* ''Captain Scarlet'''s Lieutenant Green was turned into a woman for the CGI remake ''WesternAnimation/GerryAndersonsNewCaptainScarlet''. Aside from a few shows of bravery and one episode in which the Mysterons cloned her father, her character was barely touched on.
* Arcee in ''WesternAnimation/TransformersTheMovie'' and Season 3 of ''WesternAnimation/TheTransformers''.
* Almost all the main cast of ''WesternAnimation/DuckTales'' was taken from the "Uncle Scrooge" comics. Two new female characters were added though, Webby and Mrs. Beakley.
* Botanica from ''WesternAnimation/BeastMachines''.
* [[TheStraightAndArrowPath Artemis]] on ''WesternAnimation/YoungJustice'' sort of counts: she did not join the cast until episode six, but was planned from the start (even appearing in commercials and the opening sequence).
** {{Zatanna}} and [[{{ComicBook/Icon}} Rocket]] join over the course of the first season. No other male characters joined the team until season two. The second season also added Batgirl, Wonder Girl, and Bumblebee to the team.
** The page quote also comes from the show, and demonstrates the trope InUniverse. When considering new members to be added to the Justice League the three female members specifically say that another girl would be nice.
* ''WesternAnimation/IronMan'' had CanonForeigner villainess Hypnotia, who was created in order to add a woman to Iron Man's mostly-male rogues gallery.
* ''WesternAnimation/AvengersEarthsMightiestHeroes'' only had one female protagonist, TheWasp, until ComicBook/MsMarvel joined the team early on into season two. The writers evidently planned this in advance, showing her origin story 15 episodes before her enlisting.
* ''TronUprising'' has Paige (the more competent of Tessler's CoDragons), Mara (one of Beck's co-workers), Lux, Pearl, and a guest appearance from Quorra. In less than a dozen episodes, they managed to have more female characters than two movies, ten games, two graphic novels, and the ARG ''combined.''
* By the time ''HouseOfMouse'' came around, Minnie Mouse and Daisy Duck were the only female characters in the Disney shorts - as the respective partners of Mickey and Donald. This series adds the obscure Clarabelle Cow into a regular character, also expanding Minnie and Daisy's roles.
* ''ThomasandFriends'' had mostly an all-male cast for its first six seasons. The only female engines were Mavis and Daisy, who are both diesels. ''ThomasandtheMagicRailroad'' introduced Lady, a female steam locomotive, but she only appeared twice (the second time was during a dream sequence) before being forgotten by canon. Other female characters included every piece of passenger rolling stock, a few road vehicles (Caroline and Elizabeth) and many human characters, notably Lady Hatt and Mrs. Kindley. Starting with Season 7 in 2003, after years of complaints from moms accusing the series of sexism, the first canon female steam locomotive, Emily, was introduced. Emily is a member of the main cast. Season 9 introduced a second female steam character named Molly, who only had one lead role, several minor roles and background cameos before dissappearing after the show's eleventh season. Rosie was introduced in Season 10 and has had at least one speaking role in each season since. Season 12 introduced Flora, a female counterpart for Toby; Flora suffered from HiT Entertainment's bad habit of introducing a character, then said character gets hit with PutOnABus just so they can market new toys. Season 15 introduced Belle, and Season 17 introduced Millie (the first female narrow-gauge engine) and Caitlin. More female steam locomotive characters are likely to be introduced in coming seasons.
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