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[[quoteright:330:[[Manga/ChronoCrusade http://static.tvtropes.org/pmwiki/pub/images/Satella_4375.jpg]]]]

If your show is aimed at a younger audience, this young woman (usually in her mid to late teens, sometimes in her early 20's) will be older than the {{Shorttank}} and be the girl everyone thinks is hot (if they're nice) or an AlphaBitch (if they're not). The Shorttank girls often admire them, even when they playfully flirt with the much younger male lead and steal everyone's attention. The ShrinkingViolet will admire and at the same time envy how more open her Big Sister figure is with her thoughts and feelings.

This young lady may or may not catch a {{shonen}} series lead's eye; if he hasn't entered puberty yet, she's more likely to be paired up with either TheBigGuy, the TeamDad or the BigBrotherMentor. Or ''maybe'', if she's persistent enough, she'll end up in an OddCouple with an AloofBigBrother or a single father. She may also evolve into a TeamMom thanks to CharacterDevelopment.

Expect a somewhat jaded character who prefers to work the system to their advantage rather than admit to others she's become cynical. If old enough to drink, she may also be a HardDrinkingPartyGirl, or even TheLadette; if not, she'll often be a LethalChef and/or BigEater. If older than the standard, she might be a ChristmasCake as well. She's often a GoodBadGirl and frequently the person who keeps the main characters in line. Sometimes she's even portrayed as the only person the protagonist(s) are truly afraid of.

This trope can apply to male characters as a lesser form of the BigBrotherMentor. This type is more commonly applied to a level-headed NonActionGuy or a NiceGuy whose main job is to be a mediator in a group or take care of the kids.

Compare OneeSama, also a sister figure but usually more ladylike, quiet and graceful, and AloofBigBrother, where the status causes a conflict between the (usually male) siblings.

----
!!Examples

[[foldercontrol]]

[[folder:Anime & Manga]]
* Satella from ''Manga/ChronoCrusade'' fits this trope somewhat, although Azmaria is the only one that really looks up to her. (Rosette is generally more frustrated with her antics than anything, although there's moments where they share bits of advice with each other.)
** And of course, Rosette plays the role straight towards Azmaria, as the picture above shows.
* Milly Ashford, the StudentCouncilPresident from ''Anime/CodeGeass'', is actually referred to on the show's official website as a "reliable older sister" to her friends (when she isn't tormenting them with her playful antics and "magic spells"). She's one of the more popular side characters due to this, as well as her... um... [[Film/MontyPythonAndTheHolyGrail huge tracts of land]] and [[FetishFuelStationAttendant eagerness to grope the female Student Council members]].
** Cornelia is one to her little sister Euphemia, who in turn was one to Nunnally.
* In ''Manga/OnePiece'', Nami and Robin tend to alternate between this and the TeamMom trope. Nami is definitely the CoolBigSis type to both Vivi and Chopper, while to the rest of the crew, she is definitely the TeamMom. Robin is the CoolBigSis to Nami, and is often referred to as "oneesama" by Nami.
** Nami also has Nojiko, her "sister" who was adopted with her by Bellemere.
* In ''Manga/RanmaOneHalf'', though she [[{{Flanderization}} ends up]] playing the YamatoNadeshiko so straight she becomes a parody of it, Kasumi Tend˘ is a gentle, kindhearted woman who holds the Tend˘ household together, always tries to comfort her family, thinks the best of others and displays a subtle comic wit, often trying to pull off a one-woman BokeAndTsukkomiRoutine. [[{{Tomboy}} Akane Tend˘]], her {{Tsundere}} little sister [[PromotionToParent whom she helped raise]], ''adores'' her "Kasumi-neechan" and desperately wants to be like her, but without giving up her martial arts abilities.
* Misato Katsuragi in ''Anime/NeonGenesisEvangelion''. [[DeconstructedTrope Or at least, she attempts to be one.]]
* Two aversion in ''{{Slayers}}''; While Lina is the first to admit (in the manga) that her older sister Luna is "really cool" she's also terrified of her [[NoodleIncident due to some unfortunate events during their childhood ]] ([[SubvertedTrope not that Lina didn't deserve it]]). (Lina is so scared of Luna that near the end of Slayer's Try she actually says (entirely without irony) that she has to save the universe because otherwise "my big sister is gonna kill me.") Amelia's older sister Gracia [[spoiler:AKA [[GoldfishPoopGang Naga the White Serpent]]]] did teach her some magic (per WordOfGod) but she also ran away after witnessing the horrifically bloody assassination of their mother. Amelia hasn't heard from her since, and (in the novels at least) misses her terribly.
* Mai Kujaku/Valentine in ''Anime/YuGiOh'' to Shizuka/Serenity and, to a lesser extent, Tea/Anzu.
** Aki Izayoi (Akiza in the the dub) in ''Anime/YuGiOh5Ds'' fits this, generally keeping track of [[HalfIdenticalTwins Rua and Ruka]] after she outgrows her DarkMagicalGirl leanings in the beginning of the show.
** A literal example (where she's truly the character's big sister) occurs in ''Anime/YuGiOhZexal'', with Yuma's sister Akari; given that the BikerBabe and IntrepidReporter Tropes could both apply to her, she certainly qualifies. (Yuma is actually the first protagonist in the franchise to even ''have'' a sibling.)
* Urd of ''Manga/AhMyGoddess'', to both younger sister Skuld and Keiichi on occasion, though with mixed success. Skuld seems to regard Belldandy more as her CoolBigSis than Urd.
* Shigure Asa of ''{{Shuffle}}'', who is also a GenkiGirl {{Bokukko}} to boot. [[spoiler: And she's the one who gets the guy.]]
* Reki in ''Anime/HaibaneRenmei'' is this to all the younger characters.
* Override in ''TransformersCybertron'' fits the type even if she ''is'' a [[HumongousMecha Giant Robot]] (and is only a [[ShesAManInJapan girl in the dub]]). She even refers to one of the humans as "little sis".
* ''Anime/{{Pokemon}}''
** Kasumi (Misty) has not one, not two, but ''three'' Cool Big Sisters, actual sisters at that. She doesn't exactly idolize them, though, getting along only with the eldest of the trio.
** A more straight example is LadyOfWar Soledad (Saori) from ''Advanced Generation'', who acts like a cool big sis to [[ShipperOnDeck May and Drew]].
** Zoey/Nozomi tries to act like this for Dawn/Hikari, but ends up looking like [[ButchLesbian something else.]]
** Dawn's Togekiss, who acts in this role towards Piplup. This is mainly seen by Togekiss deflecting wayward Draco Meteor attempts back at Ash and Gible to keep them from falling on Piplup, and scolding Gible for repeatedly hitting Piplup.
** Ash's [[SugarAndIce Snivy]] fills the role for the Unova gang. She's always watching out for them but would rather stay out of pointless squabbles. She also developed a rivalry with Iris' Emolga because of a [[GoodBadGirl personality clash.]]
* In ''PokemonSpecial'', Blue probably sees herself as Silver's older sister-type figure (though shippers say that Silver feels something a ''little'' bit more for her). She also occasionally looks out for Yellow.
* Kaya, [[spoiler:more specifically, her alter ego Nagato-sensei,]] in ''Mugen Densetsu Takamagahara: Dream Saga''.
* ''LightNovel/ScrappedPrincess'': While Pacifica looks to both her adopted siblings for protection, Racquel is the one she turns to when needs someone to confide in. At one point, she even tells Racquel that she had hoped to be as good a big sister to Cz[[note]]who was revealed to be a Peacemaker and reverted to her true form against her will, by Styer[[/note]] as Racquel was to her and Shannon, who shares Pacifica's sentiment. Near the end, [[ManlyTears when he finally breaks down in tears]][[note]]after returning from the final battle with the Peacemakers, with Pacifica [[BackFromTheDead having come back to life]][[/note]], Racquel provides him with a shoulder to cry on.
* Michelle Cheung, the eldest of the three Paper Sisters from ''[[Anime/ReadOrDie Read or Dream/R.O.D The TV]]''.
* The Outer Senshi in ''Franchise/SailorMoon'': Haruka Tenoh (Sailor Uranus), Michiru Kaioh (Sailor Neptune), and Setsuna Meioh (Sailor Pluto).
** Though she isn't older than the Inner Senshi, Minako Aino (Sailor V/Sailor Venus) is this to the other sailors in the manga, especially Usagi (Sailor Moon) due to her stellar leadership, extensive combat experience, and status as the famed Sailor V.
* Kuwabara Shizuru in ''Manga/YuYuHakusho'', actually Kuwabara Kazuma's older sister, who seems to consider it her job to keep the younger (acting?) girls safe and upbeat. Urameshi Atsuko kinda shifts between this in the manga... she had Yuusuke when she was about ''fourteen'' (Yuusuke's same age), after all.
* Triela fills this role in ''Manga/GunslingerGirl'', despite not being related to any of the other protagonists.
* Technically she's the ''cousin'' of [[TroubledButCute Ryoma Echizen]], but otherwise Nanako Meino fits the trope to a T in ''Manga/ThePrinceOfTennis''. And there's also Fuji's [[HelloNurse EXTREMELY hot sister]] Yumiko.
* Sakaki from ''Manga/AzumangaDaioh'' is pretty much this, being quite protective of [[TheCutie Chiyo]][[CheerfulChild -chan]] and earning Chiyo's admiration in return. And then there's all her in-show {{fangirl}}s.
* Yoko Littner from ''Anime/TengenToppaGurrenLagann'' becomes this after outgrowing her {{Tsundere}} stage early in the show, although she had hints of it from the beginning.
** Kamina acts as Simon's cool big ''bro''.
* ''Manga/BitterVirgin'' has Izumi Suwa, elder sister of Daisuke, who is considered a CoolBigSis by Daisuke's childhood friend Yuzu Yamamoto. She also becomes such to female lead Hinako when she encourages her to fight for Daisuke's affections and becomes [[spoiler: the only person who Hinako has knowingly divulged her secrets to]]. She also earns some points for casually dismissing the flak she catches for returning to her conservative home town ''very'' pregnant with no father in sight.
* Mai Tokiha from ''Anime/MaiHiME'' who, atypically for this trope, ''is'' a {{shonen}} series lead. She jokes about Shiho's BigBrotherAttraction toward Yuuichi when they all first meet, stating that she (Mai, not Shiho) and Takumi are blood-related.
* ''Franchise/{{Gundam}}''
** Christina Sierra from ''[[Anime/MobileSuitGundam00 Gundam 00]]'' isn't the sister of either Feldt or the Gundam pilots, but treats them as if they were her siblings.
** She possibly caught that from Catherine "Cathy" Bloom, the cool big sister from ''[[Anime/MobileSuitGundamWing Gundam Wing]]''. [[spoiler: Who's confirmed by WordOfGod to be the long lost older sister of the Gundam Heavyarms's pilot, Trowa Barton]].
** And let's not forget Toniya, the DarkSkinnedBlond from ''Anime/AfterWarGundamX'', who plays this role towards Tiffa and Garrod ([[ShipperOnDeck and even ships them together]]).
* Claudia [=LaSalle=] (or Claudia Grant, if we go by ''{{Robotech}}'' names) from ''{{Macross}}''.
* ''Manga/{{Bleach}}'' gives us two:
** Rangiku Matsumoto. She really takes on the CoolBigSis role when she lives with Orihime, and later is this also to Momo and ''her own captain''.
** Yoruichi Shihoin. Teases the hell out of Ichigo, after abandoning cat form and [[ShamelessFanserviceGirl appearing]] [[TheTease nude]] in front of him, [[LuminescentBlush revealing]] [[PleasePutSomeClothesOn his prudishness]]. Also was the mentor of both a teenage Soifon and a teenage Byakuya. (Byakuya was even less thrilled than Ichigo by Yoruichi's antics, making Soifon the only one of the trio who adored having her as a mentor and CoolBigSis. [[LesYay And maybe even more]])
* Cathy Taymor and Pamela from ''KaleidoStar''. Sarah Dupont is ''both'' this and the local TeamMom.
* Natsumi Hayama from ''KodomoNoOmocha'' used to be a [[BigBrotherBully Big Sister Bully]] to her brother Akito since [[spoiler: she blamed him for their mother Koharu's DeathByChildbirth]], but becomes this after her CharacterDevelopment.
* In ''OvermanKingGainer'' after she switches sides, Adette eventually becomes this role, well after she stops sleeping. The Siberian Railroad even still calls her Big Sis while she's attacking them.
* Played for laughs with Li Syaoran's ''four'' older sisters in the first ''Manga/CardcaptorSakura'' movie. They were all very sweet and well-intentioned ... and complete {{Kawaiiko}}s.
* ''Manga/AxisPowersHetalia'' has several, actually:
** Hungary, before she "graduates" into TeamMom and marries Austria.
** In Finland's notes, Belgium is hinted to be a CoolBigSis too, but she has only had cameos so far. [[http://pics.livejournal.com/melcratch/pic/00003xx2/ Confirmed in the published manga]], so much that little!Romano gets a PrecociousCrush on her.
** Ukraine ''might'' qualify as this, but both her younger siblings Russia and Belarus are {{Yandere}}s and she's very much a ShrinkingViolet. Russia ''does'' seem to consider her as one, considering [[PetTheDog his genuine affection for her and how fondly he remembers their childhood.]]
** Vietnam tends to get this treatment in fanon, and shows shades of this in the 2011 Bloodbath when she takes charge of the girls' meeting.
* Melissa Mao from ''Lightnovel/FullMetalPanic''. She mentions the trope almost by name in ''The Second Raid'' when she confronts Sousuke about [[HeroicBSOD spacing out in the middle of a mission]]. Not to mention that Kurz calls her "Sis."
* Rin Ataka from ''{{Gasaraki}}'' is arguably one of these too, she even goes so far as to sneak off of a military base despite being detained in order to check if Yushiro is ok.
* Fasalina in ''GunXSword'' is amongst the antagonist's group, however she seems fond of newcomer Michael and if he's not being guided by The Claw, he goes to her and she teaches him. It doesn't excuse her position as a villain though, making her a rare villainous CoolBigSis.
* ''Manga/MahouSenseiNegima'' has Negi's cousin Nekane filling this role whenever she's around. Kaede, Konoka, Akira, and Chizuru all fit the bill as well. On that note, most of the 3A girls can qualify at some point or another...
* Tae Sekihara in ''Manga/RurouniKenshin'', who counsels her friend Kaoru and takes Tsubame under her wing.
* Kirino Chiba, ''Manga/BambooBlade'''s KendoTeamCaptain, is more ditzy than flirty, but is clearly remarked to be the CoolBigSis for the kendo team, which helps to keep them united. This may also make her something of a TeamMom.
* Anehara Misa in ''YokuWakaruGendaiMahou.''
* So far, Eva from ''Manga/{{Karneval}}'' is one to some extent, being reliable during a crisis, [[LesYay especially when Tsukumo-chan is concerned]], although the guys are pretty scared of her.
* ''LightNovel/ACertainMagicalIndex'':
** Touma apparently has a fetish for CoolBigSis types, though he tries to keep it quiet. Kaori is the only one in his UnwantedHarem who would fit the type, and even that's a little bit of a stretch (she's the CoolBigSis to some of his haremettes, but not to Touma).
** Fukiyose Seiri is good at depicting this image. She's also hijacked the role of ClassRepresentative on a number of occasions.
** Shizuri Mugino acts as one to the other members of Team ITEM, but she's also AxCrazy and wouldn't think twice about killing them before her HeelFaceTurn.
* Though only [[BerserkButton one year older]] than the rest of the main cast of ''Manga/HayateTheCombatButler'', Maria seems to be the holder of this title.
** While Yukiji is better known as an irresponsible HardDrinkingPartyGirl and older than most, she has shown to have this side to her, mostly to her younger sister.
* ''Anime/PuellaMagiMadokaMagica'' has Mami Tomoe who has a protective, motherly personality towards rookie magical girls. Most adapations [[spoiler: and timelines]] show her in this relationship with one or more of them. [[spoiler: However, in one timeline she murdered TheTeam because she learned the AwfulTruth, crossed the DespairEventHorizon, and decided this was the best course of action, viewing it as a MercyKill.]]
** The SpinOff ''Manga/PuellaMagiOrikoMagica'' has Kyouko accidentally being one to Yuma. Despite Kyouko's [[JerkAss lack of morality]] it's heartwarming.
* ''Anime/{{Madlax}}''
** Elenore is this to Margaret as well as being ''MamaBear'' to her.
** Vanessa is this likewise to both Margaret and Elenore.
* In episode 16 of ''Manga/{{Nichijou}}'', Yuuko befriends [[spoiler:the Professor]] and becomes this.
* Ayako of ''Manga/SlamDunk'' personified this trope in the early chapters, being much more outgoing then the more {{moe}} Haruko. Later on she becomes more a TeamMom.
* Nathan from ''Anime/TigerAndBunny'' is built on this trope, right down to [[StealthPun his name]] (or, as it's pronounced in Japanese, Nee-San). The fact that he's male does not diminish it in the least.
* Michiko from ''Anime/MichikoToHatchin'' eventually becomes one to Hatchin.
* ''{{Manga/Saki}}'' formerly saw her older sister Teru as this, but by the start of the series, after their parents' separation [[spoiler:and possibly a death in the family]], Teru refuses to speak to Saki or acknowledge their being related.
** Hisa, being the ClubPresident and oldest member of the Kiyosumi mahjong club, serves this role to the younger girls, albeit girls who are not related to her.
** In ''SakiShinohayuDawnOfAge'', Mafuka Kasugai, an IdolSinger and Mahjong player, is this to Hayari Mizuhara, cheering her up with a magic trick involving a mahjong tile on two occasions.
* Yomi to Kagura in ''GaReiZero''. Even after a barrage of very awful tragedies she's still a CoolBigSis, to the bitter end.
* Aoi Kimi of KyoukaiSenjouNoHorizon. As the protagonist's slightly older sister, she's about the same age as most of the rest of the main cast, but definitely plays team mom. She's also a flamboyant pervert.
* In ''Anime/GirlsUndPanzer'', the Little Army prequel manga reveals that Nishizumi Maho, who otherwise seems like an {{Expy}} of Teru from ''{{Manga/Saki}}'', is actually quite close to her younger sister Miho, and that the [[AloofBigSister aloof behavior]] she often displays in the anime [[spoiler:is actually a JerkAssFacade brought on by having to be the ideal Nishizumi heiress, which she does so that Miho will be free to live her own way]].
** [[GLoriousMotherRussia Pravda High]]'s second-in-command [[AloofDarkHairedGirl Nonna]] has this dynamic with her direct superior [[TheNapoleon Katyusha]]. One need only look through the non-action scenes episode 9 for proof.
* In ''Manga/MagicKnightRayearth'', Presea the UltimateBlacksmith is very affectionate towards the trio despite her habit of fantasizing about DisproportionateRetribution and {{Cool And Unusual Punishment}}s. The [[AdaptationExpansion anime]] has enemy dancer Caldina act as this to Ascot. [[spoiler:In both versions, she becomes another big sister figure to the Magic Knights after her HeelFaceTurn.]]
** And in the anime, [[spoiler: Presea's AngstySurvivingTwin Sierra also plays the role. While masquerading as Presea, that is.]]
* ''LightNovel/KanojoGaFlagOOraretara'': Kikuno is Souta's self-declared big sister, so she does sisterly things for him, such as making him lunches, giving him advice, and being a little too affectionate sometimes. She also acts like a big sister figure to the rest of the cast.
* Petra Ral from ''Manga/AttackOnTitan'' became one to Eren. She functioned as a TeamMom to Levi's squad, and was the most supportive and kind member.
* ''Anime/KillLaKill'': Satsuki Kiryuin gets this trope as a part of her [[DefrostingIceQueen character development.]] Made even more meaningful by how [[spoiler: a good part of her cold and ambitious behavior came from her swearing revenge on her AlmightyMom, Ragyo, for experimenting on Satsuki's newborn little sister ''and throwing her away for dead'' when said experiments didn't work. Said sister? ''Ryuuko'', of all people.]]
* In ''Manga/CentaurNoNayami'', ClassRepresentative Manami Mitami is this to her four younger siblings, [[SameSexTriplets Chigusa, Chinami, Chiho]] and Suetsumu.
** Himeno is this to her younger cousin, Shiho. Shiho herself acts as a CoolBigSis to an even younger centaur girl from the same kindergarten, Maki.
* ''Manga/GochuumonWaUsagiDesuKa'''s Cocoa tries to act like one. Though it doesn't work very well on Chino, Megu seems to buy it.
[[/folder]]

[[folder:Comics]]
* ''ComicBook/TheSandman'' includes Death, who is the sweetest, gentlest girl anyone could ever meet. She loves everyone, and everyone, audience included, loves her. She is by far the sanest of the Endless, and is able to provide a pragmatic perspective to her younger brother, the anguished poet Dream. Most importantly, she is extremely badass when it is called for, and is the only one of the Endless who "is bound by no rules." The ironic contrast between the kind and beautiful Death and the typical Grim Reaper archetype is deliberate and effective.
* ''ComicBook/YTheLastMan'': Yorick always thought of his sister Hero this way... [[spoiler:until she joined the Daughters of the Amazon after the {{Gendercide}} and murdered someone in front of him. He had a tough time accepting her HeelFaceTurn after that.]]
* ''ComicBook/SpiderGirl'': Mayday Parker is well on her way to be this to her baby brother Benjamin.
* After Orube in ''ComicBook/{{WITCH}}'' gets over her ArrogantKungFuGuy attitude, she becomes this to the Guardians.
* Although the timeline of events indicates Megan is actually somewhat older, her ''far'' more experienced cousin, Laura Kinney aka {{X-23}}, takes this role in their relationship.
** Later on, Jubilee becomes this for Laura herself.
* Lucy acts this way towards Rerun a lot in the later ''{{Peanuts}}'' strips, very unlike her relationship with Linus in the earlier ones. (A lot of CharacterDevelopment is probably the cause.)
[[/folder]]

[[folder:FanFiction]]
* ''FanFic/RacerAndTheGeek'' features Rainbow Dash playing this [[http://www.fimfiction.net/story/81159/racer-and-the-geek role to Scootloo.]]
* FanFic/AGrowingAffection has Yugao Uzuki serve as this to both Team Kakashi and her own team.
* ''Fanfic/TheBlackSheep'' introduces Mariella Smith-Rhodes, who wants to grow up just like big sister Johanna. Mariella is evidently a ''[[WhipItGood sjaemboek]]'' cut from the same rhinoceros hide, as she has succeeded in being selected for education at the Assassins' Guild School against heavy competition.
* In the ''WesternAnimation/RiseOfTheGuardians'' fic ''[[https://www.fanfiction.net/s/8751000/1/Guardian-of-Light Guardian of Light]]'', Jamie and Sophie have an adopted elder sibling, Helen, who is this to them both. It should be note-worthy that throughout the fandom, there are many stories in which Jamie and Sophie have an elder sister. Helen is the ''only'' one who actually cares about them, and doesn't abandon them the minute she meets Jack.
** By the same author, there's the crossover fic with ''WesternAnimation/{{Megamind}}'', called ''[[https://www.fanfiction.net/s/8772736/1/Protectors Protectors]]'', only this girl, Rikki, is Roxanne's elder sister. She's just as awesome, but not just to Roxanne; she's this to all the kids.
* In the ''Manga/MedakaBox'' fanfic ''Fanfic/WorldAsMyth'', Nabeshima to Zenkichi, and Yobuko to Onigase, at least when the former isn't being a YaoiFangirl.
[[/folder]]

[[folder:Films -- Animation]]
* BadassPrincess Merida from ''WesternAnimation/{{Brave}}'' has three little brothers who think she's awesome.
* Margo in ''WesternAnimation/DespicableMe'' is this to the two younger girls, Edith and Agnes, though WordOfGod has stated that the three are not biologically related. [[spoiler:However, they legally become sisters after Gru adopts them.]]
* Tigress in ''WesternAnimation/KungFuPanda2'' to Po, if you want to disregard the [[ShipTease hints that she may be falling in love with him]].
* Lin ([[SpellMyNameWithAnS Rin]]) in ''SpiritedAway'' is not actually Chihiro's sister, but after a rocky start, she takes her under her wing.
* In ''KikisDeliveryService'', Kiki has a bout of insecurity and loneliness [[spoiler:when she loses her witch's powers]]. One of her friends, a young painter named Ursula, invites her to stay in her forest cottage and helps her mental block.
* In ''MyNeighborTotoro'' Satsuki is this for Mei (Creator/HayaoMiyazaki seems to like this trope).
* Played with in ''LiloAndStitch''. It seems like Nani used to fill this role for Lilo, but once she's PromotedToParent, their relationship becomes much more strained.
* Queen Elsa from ''Disney/{{Frozen}}'' used to be this to her little sister, Princess Anna, when they were young. After almost accidentally killing Anna with her powers, she all but ignored her existence and ultimately isolated herself from the world. By the end of the main events of the film, [[spoiler: they have rekindled their relationship]].
[[/folder]]

[[folder:Films -- Live-Action]]
* ''BonCopBadCop'' had a Cool ''Younger'' Sis for the strait-laced, by-the-book Ontario cop. Naturally, the chain-smoking, rulebreaking, yet oddly charismatic Quebec cop was interested.
* In the film adaptation of ''Film/TheLordOfTheRings'', ╔owyn very much took on this role for Merry.
* Sweet Pea from ''Film/SuckerPunch'', who looks out for and protects her sister Rocket, as well as the rest of the group. "I'm only doing this because you'd all get killed without me."
* Kitai's big sis, Ranger Senshi in ''Film/AfterEarth''.
[[/folder]]

[[folder:Literature]]
* Eldest Whistler in ''Literature/ABrothersPrice''. She also doubles as an [[AloofBigBrother Aloof Big Sister]]. She leads, the others follow.
* Literature/ASongOfIceAndFire: Sixteen-year-old Margaery Tyrell is this for Tommen Baratheon. They are married for political reasons, but since Tommen is ''eight'' he is far too young to think of her as a romantic partner. However, they [[PerfectlyArrangedMarriage get along well]]: he quickly learns to love her like a big sister and even stands up for her when his mother [[EvilMatriarch Queen Cersei]] threatens her.
** 10-year-old Myrcella Baratheon was Tommen's loving big sister before she was shipped off to Dorne for her own ArrangedMarriage. In a way, this makes Margaery a ReplacementGoldfish.
** Sansa Stark, while [[spoiler: masquerading as Alayne Stone]], meets ''two'' cool older girls who play this role for her: tomboyish PluckyGirl Mya Stone and world-wise, lively Myranda Royce.
** As a little girl, Lysa Tully used to adore her older sister Catelyn. Key words ''[[TheGloriousWarOfSisterlyRivalry used to.]]''
** Meera Reed is a cool big sister to her brother Jojen and to Bran Stark (who also has a boyish crush on her).
* Jacyl acts as one to TheHero, Lyra, in ''Literature/BlackDogs''.
* ''Literature/EvaLuna'' gives us the rare male-to-female {{transsexual}} version with Melecio, who is this in her InterGenerationalFriendship with Eva. [[spoiler: As Mimi, she keeps playing the trope towards Eva and takes it UpToEleven.]]
* In ''Literature/HarryPotter'', Tonks is this to Hermione and Ginny.
* ''Literature/TheBabySittersClub'':
** Kristy, Dawn, Mallory and Jessi to all their siblings.
** Janine is slowly revealed to be this, though Claudia initially doesn't see her this way.
* In ''Literature/TheHost'' Melanie and, by extension, Wanda serve as this for Jamie. They are a bit overprotective but, given the environment, it's understandable.
* Katniss Everdeen, cool enough to take her little sister Prim's place in TheHungerGames.
* The Literature/InDeath series. Peabody thinks of Dallas this way, while Dallas is impressed by Mira's grace, style and poise, to the point of her mental descriptions reaching near girl-crush levels.
* Meg is this to all her younger sisters in ''Literature/LittleWomen'', especially Jo and Amy, and Jo is also this to Beth.
* [[CombatMedic Yellowfang]] is this towards Cloudpelt in ''Literature/WarriorCats'': ''Yellowfang's Secret.''
* Nellie from ''Literature/The39Clues''.
* Lucy Pennykettle from [[Literature/{{Dragons}} The Last Dragon Chronicles]],[[spoiler:to Joseph Henry.]] Although they rarely get along, Zanna comes through as this for Lucy in times of trouble.
* Violet Baudelaire from ''Literature/ASeriesOfUnfortunateEvents'' is one to her younger siblings, Klaus and Sunny. She tends to [[PromotionToParent take on the "parent" role]] the most, and always tries to get them through tough situations.
[[/folder]]

[[folder:Live-Action TV]]
* ''Series/{{Angel}}'': Fred tries to act as one to Connor. It works when he's in a good mood and she's not torturing him for going after Angel.
* In the reimagined ''Series/{{Battlestar Galactica|Reimagined}}'', Kara Thrace is said to have filled this role for Sharon Valerii.
* In the KoreanSeries ''BoysBeforeFlowers'', Joon Hee is the white Ferrari-driving older sister of Jun Pyo.
* On ''Series/BuffyTheVampireSlayer'', Buffy originally filled this role for Dawn. However, after dying, coming back and basically abandoning her, it stopped applying for a bit. It was repaired in Season 7, only to be destroyed again and still be in pretty bad shape over a year later in Season 8.
** Tara and Willow are somewhere between CoolBigSis and HasTwoMommies towards Dawn.
** Faith, the AxCrazy man raping ShadowArchetype, became this when TheBusCameBack in season seven, primarily because she was took the potentials out to let off steam and was seen as more reasonable than Buffy. In season nine the other Slayers treat her as TheObiwan, Faith's reaction is they are screwed if that's the case.
* On ''{{Chuck}}'', Ellie is the ultimate CoolBigSis. She practically raised her younger brother Chuck by herself after their parents left their lives, is willing to lend an understanding ear to his problems, and is just generally an awesome person.
* ''Series/{{Firefly}}'' has urbane, sophisticated [[HookerWithAHeartOfGold Inara]] frequently playing the more experienced CoolBigSis to [[WrenchWench Kaylee]] - complete with hair-brushing sessions and advice on boys.
* Eun Bi from the KoreanDrama ''Series/FlowerBoyRamyunShop'' is this to Ba Wool, who admires her for being an ex-gang leader and for being the daughter of somebody he respects as well.
* Referenced almost by name in C-drama ''The Holy Pearl'' between [[LadyOfWar Mu Lian]] and [[RebelliousPrincess Yu Die]].
* In ''{{Pasta}}'', the older sister of Kim Sam is awesome!
* In ''Series/KamenRiderDouble'', [[spoiler:Princess Wakana]] to Philip.
* Mako's this in ''Series/SamuraiSentaiShinkenger'', much to Ryuunosuke's dismay. Additionally, Kotoha's older sister (who was meant to be Shinken Yellow [[SoapOperaDisease before getting sick]]).
** This dynamic is repeated in ''Series/PowerRangersSamurai'', with Mia (Pink Ranger), and Emily's sister, Serena (original Yellow Ranger).
* ''Series/LivAndMaddie'' has Maddie be this to her brother Parker. Liv tries her best to do so to Parker in "Sleep-A-Rooney" but has trouble being one (due to her being away from him since he was 6) and later succeeds.
* [[Series/AustinAndAlly Ally Dawson]] shows signs of being this to [[CheerfulChild Nelson]], despite being her student.
* In ''Series/TheVampireDiaries'', Elena is one to Jeremy.
** Jenna is to her niece and nephew.
* In flashbacks on ''TheWestWing'', a college age Jed Bartlett meets a young Mrs. Landingham, who says he needs a "big sister" to help guide him. She will later become his loyal but SassySecretary when he becomes President of the United States.
* Penny on the BigBangTheory to pretty much everyone, but especially her self declared "bestie" Amy.
* ''Series/OnceUponATime'': Red seems to have developed into this for Henry, which makes sense she's his grandmother's [[HeterosexualLifePartners best friend]].
* ''GossipGirl'': Serena is very protective of her brother Eric and Jenny, her boyfriend's younger sister.
[[/folder]]

[[folder:Video Games]]
* A female PlayerCharacter can be this to Mission Vao in ''VideoGame/KnightsOfTheOldRepublic''.
* Nathyrra plays this role to a female PlayerCharacter in ''NeverwinterNights: Hordes of the Underdark''.
* A particularly odd example of this trope can be found in the game ''{{Persona 2}}: Innocent Sin'', with the character Maya Amano. It's odd because the four younger kids she played with [[spoiler:locked her in a shrine (with the exception of one of them, who was locked in with her) so she wouldn't have to move away. Of course, the shrine catches on fire and they [[NeverFoundTheBody think they've killed her]].]] And that's just the tip of the iceberg.
* [[VideoGame/SuperRobotWarsCompact2 Excellen Browning]] of ''VideoGame/SuperRobotWars'' is perpetually cheerful, friends with everybody (especially [[VideoGame/SuperRobotWarsAdvance Lamia Loveless]] and [[VideoGame/SuperRobotWarsCompact2 Einst Alfimi]]) and an unabashed MsFanservice. In fact, Excellen plays on this trope by having Lamia address her as "Ex-oneesama" when they first meet.
** Likewise, [[VideoGame/SuperRobotWarsOriginalGeneration Ouka Nagisa]] of The School Children is the eldest and addressed by Arado Balanga, Seolla Schweizer and Latooni Subota as their "sister".
* ''VideoGame/SuikodenII'': Nanami is Riou's adoptive older sister and sworn protector, but she also takes it upon herself to look after Jowy, and Pilika after she's left traumatized by the slaughter of her family and village. Jowy even [[ParentalSubstitute entrusts Nanami to continue to look after Pilika]] when he defects to the Highland Army, which she does. In that sense, she's doubles as the TeamMom.
** ''VideoGame/SuikodenV'': Princess Lymsleia has absolute faith in her personal bodyguard, [[TheGadfly Miakis]], and [[LikeBrotherAndSister cares for her greatly.]] And for all her shenanigans, Miakis thinks of Lym as though she were her little sister. In the end, the game's epilogue states that (quote): [[LampshadeHanging "they remained as close as loving sisters."]]
* Bleu/Deis from the ''Franchise/BreathOfFire'' series is somewhat of a CoolBigSis to the party, most notably in ''VideoGame/BreathOfFireIII'' and ''VideoGame/BreathOfFireIV''. She guides and gives hints to Ryu and his party, and is definitely the most... erm... endowed woman in the party. Interestingly enough, Ryu ''does'' express romantic interest in her (pretty much the most you'll ever see him express towards anyone, considering he's a SilentProtagonist) in 3, sort of culminating in a [[PrecociousCrush little kiddy crush]]. Probably has to do with how he saw her [[BigBouncyBreasts full front]], [[NakedOnArrival completely naked and up close]].
* Teased with ''VideoGame/GrandiaIII''. Everything you've seen indicates Miranda is a CoolBigSis, until it's revealed she's a mother. Her personality, however, fits this trope.
* Letty Whiterock of ''[[VideoGame/{{Touhou}} Perfect Cherry Blossom]]'' is one of these for the [[TheDitz ditzy]] [[AnIcePerson ice fairy]] Cirno.
** One thing that not many people catch is that being CoolBigSis is an implicit part of [[PerkyGoth Kagiyama Hina]]'s hat. She's a specific kind of god of misfortune, in that she covers the festival where people "put" misfortune inside paper dolls and cast them down the river. These paper dolls are known as "big sister dolls".
** After ''Undefined Flying Object'', fanworks seem to also make out Byakuren Hijiri to be half this trope and half AllLovingHero in equal helpings -- with the sis-dom particularly pointed towards [[BattleButler Shou Toramaru]] and [[EldritchAbomination Nue Houjuu]]
* Lyn from ''VideoGame/FireEmblemElibe'', specially to Florina ([[LesYay if not more]], Nils and Ninian [[spoiler: (even when they're technically ''much'' older than she is]]. Also [[VideoGame/FireEmblemTheSacredStones Syrene]], [[VideoGame/FireEmblemJugdral Mahnya]], and [[VideoGame/FireEmblemElibe Cecilia]].
** In support conversations, Tana outright admits that she sees Syrene as this. Syrene's actual sister, Vanessa, seems to look up to her a lot, too.
** Lucina comes off as this in FireEmblemAwakening, specially towards Cynthia. Sumia seems to view Cordelia as this as well.
* [[TheHero Rosalyn]] from ''VideoGame/{{Okage}}'': Shadow King is this to [[SupportingProtagonist Ari]], his little sister Annie, and possibly [[TheDitz Linda]]. If you're not one of these people, chances are if you're part of the rest of the group, she's going to be short-tempered with you.
* Lightning from ''VideoGame/FinalFantasyXIII'', most evident toward Hope.
* In ''Franchise/MassEffect'' a female [[PlayerCharacter Shepard]] can be this to [[WrenchWench Tali]] to the point where in the second game she seems to have something of a [[EvenTheGirlsWantHer crush]] on the Commander. She's also something like this to [[CowboyCop Garrus]] during the first game. Shepard's role as the team's LivingEmotionalCrutch does seem to put him/her in this position a lot.
* Isabela acts like this towards Merrill and Bethany in ''VideoGame/DragonAgeII'', especially the former. Whenever Fenris / Anders would be ragging on Merrill for her use of BloodMagic, Isabela just tries to comfort her and asks if it's what she really wants. Party banter between them involves offering to teach Merrill about body-shots and trying to get Bethany a night at the local brothel. If the PC romances Merrill, Isabela gives him / her the IfYouEverDoAnythingToHurtHer speech, threatening a male PC with ''castration''.
* In ''VideoGame/NieR'', [[JerkWithAHeartOfGold Kaine]] plays this role to [[TheWoobie Emil]], in that she can relate to the idea of having a part of their body that makes them hated (Emil has {{Magical Eye}}s while Kaine is a {{Hermaphrodite}} possessed by a Shade) and tells him to never be ashamed of himself for what he is.
* Esperia seems to have this role among the spirits in ''VisualNovel/EienNoAselia''. Halion really tries, but she's a bit too slow and strange to pull it off.
* In the ''Franchise/StreetFighter'' 'verse there are two:
** The arcade version of ''Super VideoGame/StreetFighterIV'' portrays [[VideoGame/StreetFighterII Chun-Li]] in this light towards [[VideoGame/StreetFighterIII Yun and Yang Lee]]. It should be noted that given the connections between [[VideoGame/StreetFighter Gen, Lee,]] Chun-Li's father, Chun-Li, and the Lee Bros. and the likening of a martial arts instructor/master to that of a father figure, Chun-Li is more or less their ''actual'' martial arts "big sister".
** [[VideoGame/StreetFighterII Cammy]] can also be seen as this towards her fellow [[VideoGame/StreetFighterAlpha Dolls]]. Particularly, ''SSFIV'' has Cammy attempting to go all [[MamaBear Sister Cub]] on newcomer Juri for savagely attacking and hospitalizing them, not to mention looking after a recovering Juni in her ending.
* In FatalFury Mark of the Wolves, Mai Shiranui is said to be this to Hokutomaru, who refers to her "Mai-neechan" ("Big Sis Mai").
* ''VideoGame/TheKingOfFighters'' has two example between [[VideoGame/ArtOfFighting King]] and Chizuru.
** Many of the younger female fighters admire [[{{bifauxnen}} King]] [[CulturedBadass for her style and sophistication]], which is why she usually serves as the captain of the [[AmazonBrigade All Womens Team.]] [[GenkiGirl Yuri]], in particular, wants to make it official, [[ShipperOnDeck by encouraging King to hook up with her brother, Ryo.]]
** Chizuru fills this role where Kyo and Iori are concerned, albeit begrudgingly in the latter's case. Kyo even mentions how she always seems to look after them, during one of his conversations with [[VideoGame/FatalFury Terry Bogard.]] She's also the only one King has ever deferred leadership of the All Womens Team to, implying she may regard Chizuru this way as well.
* ''VideoGame/FinalFantasyX'': Mid-way through the story, Rikku seems to view Lulu this way; Yuna is implied to have had a more [[ParentalSubstitute mother-daughter]] relationship with her instead.
* ''VideoGame/SoulCalibur'': [[{{Tomboy}} Seong Mina]] is Yun Seong's "big sister" figure and [[SexyMentor his mentor]] between parts ''II and IV'', where she takes it upon herself to stop him from pursuing Soul Edge, before it's too late. But, since he won't listen to her, she's decided to [[ToughLove knock some sense into him]] and [[http://www.youtube.com/watch?v=5MzaVxopQEw march him straight back to her father's dojo.]]
** In ''[[VideoGame/SoulSeries Soul Calibur V]]'' Ivy was viewed either this way or as a surrogate mother by the younger warriors who were introduced in that game.
* Posthumously, Ada Clover from ''VideoGame/BlazBlue'', whom her little brother Carl described to be so kind, caring and compassionate that he seriously adored her. Obviously, when she had her soul plucked out by their father Relius (callously, no less) into the Nox Nyctores Nirvana, Carl swears revenge and eternal hatred to Relius.
** Also from the same game, and playable one, Litchi Faye-Ling generally acts as a big sister figure to many of the younger ones, with her teaching Taokaka the ropes, generally humors with Noel when they meet and Noel certainly appreciates her (... or [[ACupAngst being jealous at her boobies]]), and she was exceptionally kind and caring to the aforementioned Carl that she secretly wants a little brother like him, and Carl adores her so much that he sees parts of his sister residing on her. [[spoiler:This could be either a subversion or a double subversion, the former because Litchi's CoolBigSis attitude hides her massive emotional baggage about her grief and guilt about losing her friend and her taking on an ImpossibleTask to FindTheCure, to the point of being forced to join the main bad guys and never telling anyone else her problem, thus damaging her CoolBigSis credentials (Noel was particularly devastated when she learns her new allegiance and actions, though Carl decides to try and help her). The double-subversion is that regardless of the baggage, the caring, sisterly attitude was truly genuine on Litchi's part if the situation was not that severe.]]
* From ''{{Agarest Senki}} 2'', Fiona sees the {{Love Interest}}s from the first generation this way. She thinks the world of them and wants to be as good a healer as [[ShrinkingViolet Aina]] and says she's a great teacher, thinks [[BarefistedMonk Felenne]] is an awesome badass and squees at the fact that [[RoyalsWhoActuallyDoSomething Victoria]] is both a princess and a warrior. She even states she wants to grow up to be like them.
* In ''VideoGame/{{Roommates}}'', [[CuteBookworm Anne]]'s relationship with both [[GranolaGirl Sally]] and [[HardDrinkingPartyGirl Isabella]] has shades of this at first, as she's the [[ShrinkingViolet shy]] CountryMouse and both of them have a little more life experience than her.
[[/folder]]

[[folder:Visual Novels]]
* Charlotte is a cool big sis for both Angie and Mary Clarissa in ''VisualNovel/ShikkokuNoSharnoth''. However, the short voice over at the beginning of every chapter reveals that when they were children, Mary actually played this role for Charlotte instead.
* Physically older? Check. More mature than everyone else, protagonist included? Check. An actual leader for TheSquad? Check. [[BoobsOfSteel Huge tracts of land]]? Check. Meet Forte Stollen from Videogame/GalaxyAngel.
* Kurugaya from ''VisualNovel/LittleBusters''. She actually encourages the girls from the group to call her "Anego" or "Onee-san".
* Akira Satou from ''VisualNovel/KatawaShoujo'', with the bonus of being Lilly's actual older sister.
[[/folder]]

[[folder:Web Comics]]
* Yuri Zahard from ''TowerOfGod'', who appears out of curiosity when an Irregular appears, takes a liking to him and gives him a weapon that he really fricking needs. The younger characters, which would theoretically apply to everybody in the main cast since she is 618 years old, but especially Androssi and Baam, refer to her as noona and unni, the Korean honorifics for elder siblings.
* ''Webcomic/ElGoonishShive'' has Diane, [[LovableAlphaBitch the Queen Bee of Moperville South]] who is somewhere between this and OneeSama (EGS had thick anime roots before these girls) for Rhoda -- unusual in that they are in the same class, but Diane is about a head taller and more mature, so she comes across [[http://www.egscomics.com/?date=2008-02-01 as senior]] and [[http://www.egscomics.com/?date=2010-12-27 acts]] very [[http://www.egscomics.com/?date=2011-11-24 protectively]] toward "her puppy" who is tiny and [[ShrinkingViolet feels even smaller]].
* Amethyst Lashiec from ''HeartCore'' is like this, both to her actual younger sister Sukina, and to her sidekick Lutz.
* Murf's sister Kelly in ''KhaosKomix''.
* ''Webcomic/{{Misfile}}'': Once she lightens up after [[spoiler:Rumisiel exorcises her dead older sister's vengeful spirit]], "Kamikaze" Kate becomes one of these, ''insisting'' on making Ash her "little sister" (even though Ash is still terrified of her). Since Ash is an involuntary GenderBender who is absolutely horrified at the thought of remaining ''anybody's'' sister this works more as a deconstruction than anything else.
* ''Webcomic/OwMySanity'' [[http://owmysanity.comicgenesis.com/d/20100809.html literally introduces this character]] as the CoolBigSis.
* Dora of ''QuestionableContent'' had this sort of relationship with Faye and Marten, until she hooked up with the latter.
** Since Dora ''is'' a few years older than either, [[DeadpanSnarker Faye]] made a point of humming "MrsRobinson" after the hook-up.
* Nique to Criminy in ''Webcomic/{{Sinfest}}'', though its more along the lines of Nique considering him to be like a [[BigSisterInstinct little brother]]. She can be very protective of him, something Fuchsia found out early in her romance arc.
* Rhea of ''SlightlyDamned'' is this way to both Buwaro and Kieri.
* During the "Phoenix Rising" arc of ''SluggyFreelance'', Oasis takes on this role to Katie. Since Oasis is a semi-psychotic assassin/vigilante with an AllCrimesAreEqual attitude, this ''really'' freaks out Katie's mom.
* {{Subverted|Trope}} in ''Webcomic/StickyDillyBuns''. At first glance, Amber might seem to have most of the qualifications to play the part in relation to her actual younger sister Ruby. But Ruby despises her for her [[HookerWithAHeartOfGold past career as a porn star]] (which Ruby discovered in a traumatic fashion), thinks that Amber benefits from ParentalFavoritism, really doesn't want to be living with her, and is generally unwilling to ask or take her advice on anything. Whether Amber can grow into this role as Ruby gains a more nuanced viewpoint remains to be seen.
* {{Webcomic/Homestuck}}: [[TeamMom Porrim]] is this to Kanaya. Kanaya is initially intimidated by her, and hesitant to talk to her. When they finally do meet, you hear the tail end of their conversation, where Porrim has taught her more about her biology and how to control her powers, and telling Kanaya she's proud of her for what she's accomplished as well as wishing her luck on her quest.
** Kanaya herself tries to be this, but everyone besides Karkat finds her more meddlesome than helpful.
* Delia from ''Webcomic/{{Cloudscratcher}}'' is an adoptive one to Felix.
* In ''{{Rhapsodies}}'' Tara, [[http://rhapsodies.wpmorse.com/comic/10222013/ the older Fitzpatrick sister]], used to get off on this quite a bitů along with being [[http://rhapsodies.wpmorse.com/comic/cool-big-sis/ a bad influence.]]

[[/folder]]

[[folder:Web Animation]]

* In ''WebAnimation/{{RWBY}}'', Yang is this to Ruby, She actually used to read bedtime stories to her every night when they were younger.

[[/folder]]

[[folder:Web Original]]
* ''IlivaisX'' has Mille, who's a more HotBlooded variant of this. Unfortunately, she has the impression that one-night stands are the epitome of romance, and to that end her reputation of sleeping around heavily is known more than being kind and compassionate. Her only real friends are people who she ended up having to see and interact often with regardless of what she did with them, and she eventually winds up in a relationship with the resident [[BrokenBird broken]] TokenMiniMoe protagonist instead of the usual archetypes present.
[[/folder]]

[[folder:Western Animation]]
* Frankie in ''FostersHomeForImaginaryFriends''.
* Jerrica Benton of ''{{Jem}}'' plays this role for the kids at her orphanage.
* KimPossible, actually the eponymous main character of her show.
** Also, when her [[ArchEnemy nemesis]] Shego was turned good and became her friend, Kim described her "like a big sister".
* Flash from ''WesternAnimation/JusticeLeague Unlimited'' considers Hawkgirl as one of these. In his words:
-->"She loves me. She's like the big sister I never had. Only, y'know, short."
* Irma and Cornelia in ''WesternAnimation/{{WITCH}}''.
* ''{{X-Men Evolution}}''
** This rendition of Jean Grey, also a Type B {{Tsundere}}.
** Tabitha Smith, aka Boom-Boom, ''really'' fits the bill after her CharacterDevelopment.
** Rogue to Nightcrawler, possibly; they never actually stated which of the two is older, though it seems to be Rogue.
* Daisy Dingo from ''BlinkyBill''.
* Jazmine "Jazz" Fenton in ''WesternAnimation/DannyPhantom''.
* Jen on ''WesternAnimation/{{Sixteen}}'' has a mean older sister everyone loves that she's jealous of.
* Wendy acts as a surrogate one to Mabel in ''WesternAnimation/GravityFalls''.
* Yumi Ishiyama from ''WesternAnimation/CodeLyoko''. Johnny sure thinks that Hiroki has a Cool Big Sis.
* Subverted with Blackfire in the ''WesternAnimation/TeenTitans'' animated series. The other Titans think she's here to hang out with her little sis and maybe even join the team, but she's actually there [[spoiler:to frame Starfire for a robbery she committed to get the authorities off her back.]] Even Starfire was excited to see her at first and didn't expect such treachery. This moment marked a MoralEventHorizon for Blackfire as Starfire wasn't at all happy to see her again.
* Suzie Chan from ''TheAmazingChanAndTheChanClan''. Henry is her SpearCounterpart.
* ''WesternAnimation/AvatarTheLastAirbender'': To some extent, Mai to Azula and Ty Lee. She's a year older than them and fits the aloof, snarky profile. Also, Katara to Toph, when they're not fighting or annoying each other.
* Korra from ''WesternAnimation/TheLegendOfKorra'' is adored by all of Tenzin's children, and Ikki and Meelo often imitate her to their father's dismay (though it's made all the more amusing since Korra is the reincarnation of their ''grandfather'').
* Twilight Sparkle to Spike in ''WesternAnimation/MyLittlePonyFriendshipIsMagic''. At times, she comes off as a [[ParentalSubstitute mother]] more than a sister though, since Spike has no separate maternal figure in Ponyville. Rainbow Dash also sees her old friend, Gilda the Griffon, as one. To her credit, Gilda ''does'' seem to care about her; the problem is that she doesn't care [[{{Jerkass}} for anyone else]].
** [[Characters/FriendshipIsMagicThePrincesses Princess Celestia]] walks the line between this, ParentalSubstitute and OneeSama, quite possibly for her entire nation, but at least for her "most faithful student" [[Characters/FriendshipIsMagicTheManeCast Twilight Sparkle]]. The rest of the [[Characters/FriendshipIsMagicTheManeCast Mane Six]] and her sister, [[Characters/FriendshipIsMagicThePrincesses Princess Luna]] are in-between the two.
** Literal big sisters Applejack towards Apple Bloom, and [[AnAesop (eventually)]] Rarity towards Sweetie Belle. This is explicitly {{invoked}} in "[[Recap/MyLittlePonyFriendshipIsMagicS1E23TheCutieMarkChronicles The Cutie Mark Chronicles]]".
--->'''Scootaloo:''' We can start with the coolest pony in Ponyville...\\
'''Apple Bloom:''' Applejack!\\
'''Sweetie Belle:''' Rarity!
*** {{Fanon}} puts Berry Punch, Cloud Kicker, Carrot Top/Golden Harvest, and Sparkler/Amethyst Star as this to Pi˝a Colada, Alula, Noi, and Dinky Hooves, respectively, based on them being seen together in "[[Recap/MyLittlePonyFriendshipIsMagicS2E5SisterhoovesSocial Sisterhooves Social]]", which was all about Rarity learning to be this.
** Pinkie Pie sometimes takes this role, trying to cheer up Apple Bloom or chaperoning foals on Nightmare Night.
*** And with the recent arrival of Mr. and Mrs. Cake's twin foals, Pinkie is now filling this role in a quite literal sense given that the Cakes seem to regard her as something of a foster daughter.
*** Subverted hilariously [[http://www.youtube.com/watch?v=hh2qaoGuHkI when she tries to act this way toward Fluttershy.]]
---->'''Fluttershy:''' I'm a year older than you.
** The couple whose wedding the Mane Six attend in the Season 2 finale, appropriately enough, both played this role for Twilight Sparkle when she was a foal: Shining Armor is her "B.B.B.F.F.[[note]]Big Brother, Best Friend Forever[[/note]]," while Princess Cadance was her foalsitter (and apparently, "the best foalsitter in the history of foalsitters").
** Subverted by Rainbow Dash. While the other members of the Mane Six are all pretty good with kids and fit this trope nicely, WordOfGod has revealed that the reason she wasn't given a younger sibling was because her occasional {{Jerkass}} tendencies probably wouldn't make her the best big sister. [[spoiler: But then, nearly three seasons' worth of CharacterDevelopment finally paid off in the events of "Sleepless in Ponyville," where she effectively becomes a big sister to Scootaloo!]]
*** She does still get occasional moments of this with other team mates however, especially to Fluttershy. When Gilda revealed her true colors and turned on Pinkie, she stood up for her (and all her other friends) as well.
*** All are pretty good with kids to some degree or another. Twilight is very responsible, seems to know a good deal about looking after children, and interacts very well with the kids in town, particularly the Cutie Mark Crusaders. Fluttershy doesn't have that much experience with kids, but her FriendToAllLivingThings status certainly gave her a leg up when the opportunity arose. Pinkie Pie and Applejack both seem to get along very well with kids, the former partially due to [[OneOfTheKids being similar to them]]. Rarity is a more questionable case, as the Cakes went to her ''last'' when looking for a foalsitter, even after Rainbow Dash!
*** Even before ''Sisterhooves Social'', Rarity had been this to Sweetie Belle on her 5th birthday and... not what Sweetie Belle had thought in mind. Rarity entertained Sweetie Belle's guests to prevent them from leaving as they were waiting for the birthday girl to come down because Sweetie Belle was trying to look good for the birthday with dress, lipstick, and heels on. When one guest said that they don't need the absent birthday girl because of her older sister entertaining them, Rarity actually defends Sweetie Belle as she wants her birthday to go well. Unfortunately at that time, Sweetie Belle was overseeing this which made her go back to her bedroom crying and thought her sister upstaged her ''on purpose''. This was part of her [[DrivenByEnvy motivation]] in the plot of Recap/MyLittlePonyFriendshipIsMagicS4E20ForWhomTheSweetieBelleToils to sabotage a dress of one of Rarity's highest clients as payback for the dresses Rarity made overshadowing Sweetie Belle's play she worked hard on. It's heavily implied that Luna, who was helping Sweetie Belle see the error of ways in her dreams, thought that way about Celestia.
* Olga Pataki, the 20 year old sister of Helga Pataki on ''HeyArnold''. Not only does she get top grades, is a Valedictiorian, humanitarian and has her own trophy room, but she's gorgeous and tends to steal the lime light at any given second. Everyone adores her... except her sister. Their parents even love her more than Helga.
** Not to mention that, despite having a good heart, poor Olga has ''terrible'' problems of her own. The fact that [[StageMom the Pataki parents]] dote on her so much has caused Olga to become a StepfordSmiler who collapses in tears at the slightest evidence that something may go wrong. As a result, while she plays this role to Lila and others who are outside the family, she and Helga are pretty distant -- and sometimes Helga comes off as more mentally strong than Olga does.
* Arcee acts as this to Jack in ''WesternAnimation/TransformersPrime,'' shifting into MamaBear territory when he's threatened.
* Miss Martian becomes Beast Boy's adopted sister in season two of ''WesternAnimation/YoungJustice''. It doesn't hurt that she was the donor when he needed a blood transfusion in the first season, or that she modeled her human appearance on his mother.
** Batgirl also gives off some of this air in her interactions with Robin III and Wonder Girl. She hugs Cassie after a successful mission and is usually paired with Robin for covert ops, including knocking him out of the way of attacks. When complaining about how all the other kids have mentors, Jaime includes Batgirl as one of Robin's.
* ''WesternAnimation/StarWarsTheCloneWars'': PadmÚ's relationship with Ahsoka seems to be like this.
** Ahsoka's relationship with the Jedi younglings in the Young Jedi story arc in the fifth and final season also seems to be like this, considering that she is their chaperone.
* [[{{Doug}} Doug's]] older sister Judy was both this and a BrattyTeenageDaughter at the same time. Judy is ostensibly considered one of the main antagonists of the series yet she gets plenty of heartwarming scenes of Doug, which is most likely the end result of her gaining new respect for him after he willingly gave back a large amount of cash to the old woman who lost it, even though the money was now legally Doug's.
* Stephanie is this on ''MoralOrel'', particularly to the titular character.
* Mike Chilton's older sister Capri in ''{{WesternAnimation/Motorcity}}''.
* ''WesternAnimation/WinxClub'': Flora to Miele.
* In ''WesternAnimation/MikeLuAndOg'', Mike sees Hermione of the Cuzzlewitz clan as one. Mike herself is also this to Lu and Og.
* ''WesternAnimation/{{Grojband}}'': Mina to Carrie, unlike Corey and Trina's relationship, they seem to get along.
[[/folder]]

----