[[quoteright:350:[[Disney/{{Tangled}} http://static.tvtropes.org/pmwiki/pub/images/StabingtonTwins_9989.jpg]]]]
[[caption-width-right:350:How could anyone ''possibly'' tell them apart?]]

->"I'm Tamera, and I'm the one ''with'' the mole."\\
"And I'm Tia, and I'm the one ''without'' the mole."
--> -- '''Tia and Tamera Mowry'''

Being identical twins is awesome! You have an identical best friend and [[EvilTwin worst enemy]] (...wait, [[VitriolicBestBuds there's a difference?]]). Best of all? No one can tell you apart! ... except you ''are not'' [[SingleMindedTwins one person]], and having everyone constantly confuse the two of you can get grating ''very'' quickly. So the twins will develop different clothing styles, hair styles, and mannerisms to help differentiate themselves. They now have two identities rather than one... though they may ensure the superficial changes are small/impermanent enough to allow for future {{Twin Switch}}es just to keep messing with people.

If one twin is absolutely sick of the prospect of their twin and them being confused, or has a falling out with their sibling and no longer trusts them with casual impersonation, they'll make permanent alterations such as tattoos, scars, piercings, ''very'' deep tans, or even cosmetic surgery to ''really'' avoid confusion.

This is almost always TruthInTelevision - usually either because there's a biological distinction (e.g., a mole on one twin's cheek that the other doesn't have, or the natural part in their hair may be a mirror image of each other) or because they like to do something to differentiate themselves (like a different hair style - even a different hair colour, sometimes). Even more TruthInTelevision: Even identical twins can be told apart by their fingerprints.

See also/compare TwinDesynch. TaremeEyes and TsurimeEyes are a common way to tell twins apart. Any personal examples should go in the [[http://tropertales.wikkii.com/wiki/Main_Page Troper Tales Wiki]].

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!!Examples:

[[foldercontrol]]

[[folder:{{Anime}} and {{Manga}}]]
* For [[TaremeEyes Zazie]] and [[TsurimeEyes her sister]] in ''MahouSenseiNegima'', this is the only way to tell them apart. And Fuuka and Fumika have distinctive hairstyles.
* ''Manga/OuranHighSchoolHostClub,'' where the twins can be told apart from how they comb their hair. [[spoiler: This is later taken to its expected conclusion when the twins finally ''do'' change enough emotionally that they want to look different and be individuals; they achieve this by one dying his hair black.]]
** Subverted in the anime, when Hikaru and Kaoru get fed up with being identical and dye their hair pink and blue. [[spoiler: It ended up being another game to mess with everyone.]] In the anime they also have different voice actors.
* ''{{Eyeshield 21}}:'' Unsui is bald and Agon wears his hair in dreads.
* In ''FushigiYuugi'', Amiboshi wears blue and carries a flute. Suboshi wears orange and wields a KillerYoYo. Remember that now.
* In the first ''Manga/CardcaptorSakura'' movie, we are introduced to a set of [[GenkiGirl enthusiastic]] teenage quadruplets, Syaoran's sisters. It's not mentioned in the movie, but according to some related promo material, each of the girls wears a different color dress, and two of them have different hairstyles. (Fuutie = yellow, Fanren = green, Feimei = blue, Xiefa = red)
* Used to the Sonozaki sisters' advantage in ''HigurashiNoNakuKoroNi''. From an early age, Mion wore a ponytail and dressed more boyishly, while Shion tied only half her hair back and wore more feminine attire. They frequently pulled [[TwinSwitch twin switches]] when they were younger [[spoiler:with one permanent switch thrown in,]] and can often only be told apart by the way that each styles her hair.
** Their most obvious distinguishing feature is Mion's tattoo.
* In ''LightNovel/ACertainMagicalIndex'', Touma distinguishes Mikoto from her clones by the fact that Mikoto wears ModestyShorts under her skirt, while her clones don't. After a while he realizes that waiting for a strong breeze and looking up a girl's skirt is going to get him into trouble eventually, so he decides to buy a ring for Misaka 10032 to help identify her from Mikoto and the other clones. He quickly realizes that a ring might be too small to be easily spotted, so he decides to get her a necklace instead. But Misaka has been told that a ring is a gift from a boy who likes you, so she insists on it.
* Despite not being twins, most characters in ''Manga/KOn'' can only physically tell the Hirasawa sisters Yui and Ui apart by hairstyle, Ui wearing hers in a ponytail. When Ui pulls a TwinSwitch though, Sawako-sensei can tell who she really is by [[spoiler:her bust size being slightly bigger than Yui]].
* In ''ArmoredTrooperVotoms'', Arron Schmittel wears a brown uniform while his brother Gurran is dressed in blue.
[[/folder]]

[[folder:Comic Books]]
* Although not technically twins, Thompson and Thomson from ''{{Tintin}}'' have slightly different mustache styles.
** [[CatchPhrase To be precise]], Thompson's mustache curls in while Thomson's flares out. In the licensed game based on the Jackson/Spielberg film, one also wears a white suit in co-op, while the other keeps his black one.
* Huey, Dewey, and Louie from the ClassicDisneyShorts and ComicBook/DisneyDucksComicUniverse dress in a ChromaticArrangement of hats and shirts (Huey being red, Dewey being blue, and Louie being green -- usually). In the ComicBook/DisneyDucksComicUniverse they wear black shirts and frequently go hatless -- and when they ''do'' wear hats it's not a given that the colorist will follow the "official" colors, leaving it impossible at times to tell who's who.
** Their {{Distaff Counterpart}}s April, May and June vary wildly whether they wear different colors or not -- or which colors they wear. Sometimes they follow the red/blue/green ChromaticArrangement of Huey, Dewey and Louie, sometimes they'll go for a yellow/magenta/cyan theme instead. However, in later years Dutch comics featuring the girls gives them more individual clothes and different hairstyles (yes, [[NonMammalianHair hair on ducks]], [[MST3KMantra just go with it]]): April has a ponytail, May has short hair and generally wears a headband, and June has twin pigtails.
** In a comic story from Don Rosa, Huey, Dewey and Louie HAVE differences... It's just that they're subtle enough that only themselves and Donald (who is revealed to be able to see details as subtle as flea prints on a donut) can tell them apart without the hats. That doesn't prevent the triplets from taking offense by anyone else's inability to tell them apart.
** By ''WesternAnimation/QuackPack'', DivergentCharacterEvolution has given them different hairstyles and fashion choices (as well as more unique personality traits). They still keep the color scheme, though.
* The Mauler Twins of ''ComicBook/{{Invincible}}'' are a mutated mad scientist and his clone -- they don't remember and can't agree on which is which. One of them has a nose ring and a tattoo on his face. ''Both'' of them cite this as evidence that they're the original and the other is the clone.
* ''ZipiYZape'': The twins' hair colours.
[[/folder]]

[[folder:Film]]
* ''Film/DeadRingers'': Elliot and Beverly [[MeaningfulName Mantle]] are identical twins who begin the film as nearly inseparable partners in a gynecological practice. As the story progresses, Beverly and Elliot personalities diverge due to one of the twin's advancing mental instability. This is reflected in their appearance, with Elliot maintaining a healthy, well-tanned look while Beverly develops bags under his eyes, a sickly pallor, and a nervous twitch. Guess which one's losing his marbles?
* Parodied & Inverted in ''TheGreatMuppetCaper'' where Kermit (a frog) and Fozzie (a bear) [[NonIdenticalTwins play identical twins]].
-->'''Editor:''' You two guys don't look anything alike!\\
'''Kermit:''' That's 'cause Fozzie's not wearing his hat. Fozzie, put your hat back on.\\
'''Fozzie:''' Yes sir. ''puts hat on'' See?\\
'''Editor:''' Oh, yeah, I can see it now.
* This trope is inverted in both versions of ''TheParentTrap'', with the identical twins starting out easily identifiable by hairstyle, choice of clothing, and accents. When they decide to do the swap to try to get their parents back together, they make adjustments so that they ''are'' indistinguishable.
* In ''Film/ScottPilgrimVersusTheWorld'' [[http://mrwickedproductions.files.wordpress.com/2010/08/scott-pilgrim-vs-the-world-asian.jpg Kyle & Ken Katayanagi]], Evil Exes 5 and 6 respectively, have ''very'' different outfits and Ken has bleached his hair. Interestingly, in the movie at least, they lack individual characterizations.
* In some of the scenes of ''Film/TheSocialNetwork'' the Winklevoss twins are differentiated through hairstyle: Cameron wears his nomrally and Tyler has his slicked back. Other features, such as differing ties, are sometimes used as well.
* Pictured above are the Stabbington brothers from ''Disney/{{Tangled}}'', who are only differentiated by: sideburns, the EyepatchOfPower one of them wears, clothes, and weapons.
* In ''Film/{{Serenity}}'' the Rample twins are always impressed that Mal can tell who's who. When they question him, he simply says "Fanty's prettier" than Mingo. Explained in the novelization by Mal knowing Mingo's voice is slightly higher than Fanty's.
[[/folder]]

[[folder:Literature]]
* In most versions of ''Literature/AliceInWonderland'', Tweedledum and Tweedledee have their names embroidered in their collars.
** In Tenniel's illustrations, they are mirror images of each other, which was probably Carroll's intention.
* In ''HarryPotter'', Fred and George Weasley are identical enough that they're seen pulling a TwinSwitch on their own mother. Mrs. Weasley will routinely make them jumpers with F and G on them ("[[HilarityEnsues For Gred and Forge]]" the twins joke). In ''HarryPotter/HarryPotterAndTheDeathlyHallows'', [[spoiler: George loses his ear getting Harry to safety. One of the first things the twins tell their mother is now she can tell them apart. ...And then Fred dies in the final battle at Hogwarts which, while tragic, probably makes telling the difference even easier.]]
** There're also Padma and Parvati Patil. In the books, Padma is in Ravenclaw and Parvati in Gryffindor. ''[[HarryPotter/HarryPotterAndTheGobletOfFire Goblet of Fire]]'' states the two could usually only be told apart by their uniforms; both are in Gryffindor in the films.
*** Though it should be noted that in the movies they are played by two non-sibling actresses and made fraternal.
* In Ngaio Marsh's ''Death of a Peer'' (UK title ''A Surfeit of Lampreys''), A pair of near-identical twins both claimed to have taken the elevator with their uncle just before he was found dead in it. Only one of them did, and Alleyn points out that the twins can't cover for each other since he can tell which twin is which.
* ''The Midnight Twins'' is a book about seer twins, one who can see into the future and one into the past. Meredith, aka Merry, is cheerful and girly. Her hair is parted on the right, she's right-handed, and she has two piercings in her right ear. Mallory, aka Mally, is a tomboyish loner with all of the aforementioned characteristics on her left side.
* In ''TheStainlessSteelRat'' books, Jim's sons James and Bolivar are distinguished only by a small scar behind James's ear, from when Bolivar bit him when they were four.
* In the ''Literature/VorkosiganSaga'', Mark deliberately gains huge amounts of weight so that he can be easily distinguished from his clone-brother Miles.
* The St John twins from Creator/DavidWeber and Creator/JohnRingo's ''Literature/PrinceRoger'' series have opposite sides of their heads shaved, due to one of their old [=COs=] being unable to differentiate them.
* In ''The Truth-Teller's Tale'' by Sharon Shinn, Eleda and Adele are "mirror" twins, able to be told apart by which of their MismatchedEyes is on the right, their handedness, and the way they part their hair. However, since Eleda is a [[CannotTellALie Truth-Teller]] and Adele is a [[SecretKeeper Safe-Keeper]] and the consequences of them pulling a twin-switch on you are ''very'' serious, the townspeople have worked out a question to tell them apart: "Is it safe to tell you a secret?" Eleda will always say "no" and Adele will always say "yes."
* In the ''Literature/GarrettPI'' novels, Garrett makes the groll brothers, [[GenderBlenderName Doris and Marsha]], wear different hats so he can tell which is which.
* The ''Literature/CalendarMysteries'' features twins Bradley and Brian Pinto. Brian is the twin missing a tooth.
* In the ''AuntDimity'' series:
** Identical twins Ruth and Louise Pym are difficult to tell apart and always dress alike. Eventually, Lori realizes that Ruth (the elder) always speaks first, and that Louise is slightly more soft-spoken than her sister.
** Lori doesn't explicitly state how she can tell her sons apart, but in ''Aunt Dimity Digs In'' young Rainey Dawson claims to be able to see the difference in their souls by looking in their eyes, even citing a difference in colour.
* In an early ''SweetValleyHigh'' novel, Jessica gets fed up with people mistaking her for Elizabeth and gets herself a makeover, including dying her hair black. She rapidly switches back when it turns her original look is what a modeling agent is looking for.
* From the ''BabySittersClub:'' Initially, Marilyn and Carolyn Arnold can only be told apart when wearing their name bracelets, though later, the sitters wise up and notice that the girls both have moles under different eyes. Later still, Carolyn gets a haircut and a more stylish wardrobe, while Marilyn wears her hair long and prefers more conservative clothes. Abby and Anna Stevenson are shown in ''Abby's Book'' to be impossible to tell apart and are initially afraid of developing separate, non-identical interests, even if they're afraid of growing up to be ''completely'' identical. After they get frustrated by their teacher asking their parents to color-code them for school and their classmates' habit of referring to them collectively as "Abby-Anna," their father suggests one of them cut their hair. So Anna does.
[[/folder]]

[[folder:Live Action TV]]
* Invoked in an episode of ''TheSuiteLifeOfZackAndCody.'' Cody decides to dye his hair "Honey Mist Auburn" so that people would be able to tell him from Zack. To quote the episode: "Honey, you missed auburn big-time." He ended up as a redhead, and ironically was forced to do a TwinSwitch for an interview. In Real Life, you could tell Dylan Sprouse from his brother because Cole (Cody) has a more gaunt face than Dylan.
** This also meant that as time progressed, it got much less difficult to tell the two apart.
* In ''Series/ArrestedDevelopment'', the Bluth twins can be told apart easily because George is bald and Oscar has hair. Oh, ''that hair''.
* Siobhan on ''{{Ringer}}'' has a burn scar on her wrist, which her twin sister Bridget finds handy when she has to convince someone she's not her sister.
* ''Series/KamenRider:'' Though they're not related, this appears with the first two Riders. Takeshi Hongo (Kamen Rider #1) and Hayato Ichimonji (Kamen Rider #2) have nigh-identical suited forms (after actually tweaking Hongo's suit to ''more resemble Ichimonji'', especially gaining a white stripe on his helmet without which they'd be ''easily'' distinguishable. WTHCostumingDepartment). The only difference is that Ichimonji's boots and gloves are red. It's hard to see which is which in a fight, but eventually, Ichimonji got a black helmet in many of his later appearances. (Then lost it. The Double Riders are nigh-impossible to tell apart once again. However, ''[[Series/KamenRiderFourze Movie Wars Megamax]]'' brings back Ichimonji's black helmet, which is then carried over to ''Film/KamenRiderXSuperSentaiSuperHeroTaisen'', indicating that the change might stick this time.
** In ''KamenRiderTheFirst'' and ''KamenRiderTheNext'', Hongo's helmet lacks the white stripe, making it much easier on the viewer.
* In the LawAndOrderSVU episode "Double Strands", a serial rapist tries to pin his crimes on his twin brother. The twin, not knowing that he had any siblings, protests his innocence, even against DNA evidence. The real culprit is eventually identified by his chipped tooth and a scar on his stomach.
* In the pilot movie for ''OutOfJimmysHead'', Crocco says that he can tell Golly and Dolly apart because Dolly wears a bow. This received a CallBack in a later episode, where Dolly loses her bow and Crocco mistakes her for Golly.
* In later seasons of ''SisterSister'', the twins played up the fact that Tamera has a mole on her cheek where Tia doesn't. Interestingly, in earlier seasons, producers put a mole on Tia's cheek to make them "exactly" identical.
[[/folder]]

[[folder: Professional Wrestling]]
* The Uso twins in WWE can only be told apart by Jimmy wearing long tights and Jey wearing shorts. However their dreadlocks are different styles. And Jey has a tattoo on his chest and Jimmy doesn't.
* Don Harris is an inch taller than his twin brother, Ron.
* The Bella Twins can be distinguished if their hemline is low enough to reveal Brie's tattoo. There was a time when Brie gave herself bangs but wore hair extensions to match her sister whenever she was on TV. Though it's easy to tell them apart when they speak as Brie has a much deeper voice than Nikki. Also, Nikki has gotten breast implants.
[[/folder]]

[[folder:Tabletop RPG]]
* ''TabletopGame/DungeonsAndDragons'' module [=EX2=] ''The Land Beyond the Magic Mirror'', which was inspired by Creator/LewisCarroll's ''Literature/AliceInWonderland'' stories. T. Deeous and T. Diumm (a ShoutOut to Tweedledee and Tweedledum) look exactly alike, except for the ties that secure their jackets: one is russet-red, one is plum colored.
** ''{{Ravenloft}}'s'' wererat darklord, Jacqueline Renier, got so sick of people confusing her with her sister Louise that she went in for the body-alteration version of this trope. Not by changing herself, but by ''tearing off her sister's earlobe'' in a fight.
[[/folder]]

[[folder:Video Games]]
* {{Jailbait}} twins Gauche and Droite from ''VideoGame/TalesOfVesperia.'' They look the same for the most part, but are easy to distinguish due to the color of their hair and eyes, as well as having distinct voices.
** ''VideoGame/TalesOfVesperia'' also has Hisca and Chastel from the OVA The First Strike. They are distinguishable by the fact that Chastel is "more developed" than her sister.
* Dante and Vergil of the ''DevilMayCry'' series. Dante has a relatively simple red longcoat in all his appearances and wears his hair loose. Vergil wears a far more elaborate blue coat and keeps his hair slicked back, though occasionally it falls out of place, making it look identical to Dante's.
* Luciana and Aegina in ''YggdraUnion'' are distinguishable because of their different hairstyles, different clothing colors, and the fact that Luciana is [[TheSouthpaw a lefty]]. Unfortunately, they still have to dress ''similarly'' because the Imperial Army would lose a huge tactical advantage if their enemies actually wised up, not to mention that there's still people in Fantasinia who are trying to kill the two of them--and this means that even most of their allies have trouble telling them apart at times. This is a plot point in the ''YggdraUnison'' drama CD, where Luciana tries to establish her individuality much more clearly. Out of the whole cast, only Gulcasa and Emilia can reliably tell the twins apart.
* In ''GloriaUnion'', twin brothers Ishut and Ashley are very easy to tell apart--they have different hairstyles (ShonenHair versus a ponytail), different taste in clothing, and [[SiblingYinYang diametrically opposite personalities]]. Having lived completely separate lives for about ten years tends to do that.
* Ami and Mami Futami in ''VideoGame/TheIdolmaster''. One has a side ponytail on the right (Ami) the other on the left (Mami). Becomes even more pronounced when Mami grows her hair out for the second game and anime.
* About midway through the second year in ''TokimekiMemorial 2'' Maho Shirayuki's breasts grow significantly more than her twin sister Miho's. Thereafter it becomes very easy to distinguish which one just showed up for your date.
* Angela and Lilith Pleasant in the second main instalment of ''TheSims'' franchise. To distinguish themselves from one another in their mutual antipathy, Angela is a stereotypically preppy-looking girl in a light summer dress and sparse, natural-toned make-up, while Lilith is a full-on goth girl complete with spiked leather collar, entirely black clothing, black lipstick and white face powder. Despite this, they wear their hair in identical fashion and have [[NotsoDifferent remarkably similar personalities and life goals]].
* [[RedOniBlueOni Redmond and Blutarch Mann]], founders of RED and BLU respectively, in VideoGame/TeamFortress2. They both wear identical suits with bowler hats, [[ColorCodedCharacters dressed completely in their respective colors]]. Although they look identical, the family portraits hanging in each of their respective mansions portray the respective brother as tall and handsome, with the other as a short, weasel-y gremlin. [[spoiler: Time will tell if their long-lost triplet, Gray Mann, follows suit.]]
* Dr. Ned, the twin brother of Dr. Zed from ''VideoGame/{{Borderlands}}'', has a mustache, while his brother lacks facial hair.
* The Dewynter Sisters in SaintsRowTheThird are identical twins that look alike and dress alike but can be told apart from the colors of their sunglasses. Kiki wears pink glasses and Viola wears white glasses. [[spoiler: After Kiki is killed, Voila will start wearing Kiki's pink glasses to signify her respect for her sister.]]
[[/folder]]

[[folder: Web Animation]]
* Lifty and Shifty in HappyTreeFriends. Shifty wears a hat.
[[/folder]]

[[folder:Web Comics]]
* While not technically twins, ''BobAndGeorge''[='=]s AuthorAvatar put name tags on the alternate future and alternate far-future Megaman and Bass to diferentiate themselves from each other, because he knew things would become confusing shortly. Not long after, the far-''far''-future versions of the alternates appeared with the appropiate tags... [[spoiler: And then they took them off, revealing themselves to be the ''present day'' alternate Mega Man and Bass]].
* In the ''[[Webcomic/TheOrderOfTheStick Order of the Stick]]'', Nale is distinguishable from his twin brother Elan by his goatee and (initially) by his tendency to wear a similar outfit with the color scheme inverted. [[spoiler: When Nale pulls a TwinSwitch by shaving off the goatee and stealing Elan's clothes, readers can still tell the difference by a darker spot on his face where the goatee once was. The other characters don't notice, except for Belkar who can identify Nale by scent (and only after he ditches the clothes).]]
[[/folder]]

[[folder:Web Original]]
* [[http://wiki.rpg.net/index.php/File:MPost5023-b53f3a9139_o.jpg This]] poster demonstrates the reliability of such things when applied to twin teenage girls. (specifically, [[GaiaOnline the Von Helson sisters]])
** It's even less reliable when one knows the characters shown in that image are ''both'' AffablyEvil [[OurVampiresAreDifferent vampires.]] Though after certain events involving a DisneyVillainDeath, they reappeared, this time with one sporting an [[EyepatchAfterTimeSkip eyepatch]] and [[GoodScarsEvilScars a nifty new facial feature.]]
[[/folder]]

[[folder:Western Animation]]
* Tomax and Xamot, the twin COBRA agents from ''GIJoe A Real American Hero'', can be distinguished because Xamot has a facial scar and Tomax does not. They also wear costumes that mirror each other.
* The Oracle Twins in ''WesternAnimation/AmericanDragonJakeLong'' dress exceedingly differently. In the first season, before the animation style changed, it's easy to tell that they were just dressing differently. In the second season, their entire appearances, hair color included, are altered.
* Ingrid and Latoyah from ''SlackerCats'' have different colour eye-shadow - purple and green - though which one is which is another matter.
* Susan and Mary Test, from ''WesternAnimation/JohnnyTest'', have different hairstyles, different hair clips (a star or moon) different shirt colors and designs, different eye and differently-shaped glasses (square for Susan, half-moon for Mary). The clincher though is that one has green eyes and the other blue, a TwinSwitch would probably require them to wear contacts.
* In ''WesternAnimation/{{Rugrats}}'', Phil and Lil De Vil are [[HalfIdenticalTwins identical fraternal twins]]. They had slightly different outfits; Lil wore a pink bow in her hair and her overalls were actually tapered like a skirt at the bottom. They're still similar enough that switching Lil's bow can cause their dad to confuse them. One episode has Lil give herself pigtails and Phil mess up his hair so they can be told apart.
** Angelica {{invoked|Trope}} this trope when she pretended to have a twin sister named "Balina". To portray Balina, she tied up her GirlishPigtails and rolled up the sleeves of her shirt.
* Patty and Selma Bouvier on ''WesternAnimation/TheSimpsons''. Selma's hair is parted, Patty's is not. Patty parted hers in one episode as part of a plan to break Selma and Abe apart. It failed when the real Selma showed up while Patty was tricking Abe.
* Arry from ''WesternAnimation/ThomasTheTankEngine'' has stubble, while his twin brother Bert does not.
** The Brendham Bay Twins and Scottish Twins both wear actual name tags.
*** In the case of the Scottish Twins, the names are painted on because they pulled one too many {{twin switch}}es in in their backstory.
* This is actually commented on in ''WesternAnimation/TheVentureBrothers'' episode "Dr. Quymn, Medicine Woman", where Dr. Quymn's daughters Nancy and Drew explain that they're technically ''semi''identical. Which is to say that Drew has freckles on her nose and Nancy doesn't. Hank can't tell them apart even after he hears about this.
* Subverted with Sam and Dave, the Diggers, on ''WesternAnimation/{{Recess}}'', as they were identical ''best friends'' (though in the Japanese dub, they ''are'' twins). The way you could tell them apart was that Sam wore a red bandana around his neck, and Dave wears a white mouth cover around his neck.
* ''{{Futurama}}'' plays with this with Bender and Flexo. As both are bending units, they were designed with identical looks... except for Flexo having a detachable metal goatee.
* [[DumbBlonde The]] [[AlphaBitch Trishas]] from ''Rated A for Awesome'' are nearly identical, except they're mirror images of each other. Trisha #1 has an earring on her left ear and her hair parts to the right, while Trisha #2 has an earring on her right ear and her hair parts to the left.
** Also, whenever they wear different clothes, Trisha #1 is usually wearing a darker shade of pink than Trisha #2.
** Their cousin, also named Trisha, is identical to Trisha #2 except her hair is strawberry blonde instead of regular blonde.
* ''WesternAnimation/TotallySpies'': Terry underwent surgery so he'd no longer look or sound like Jerry.
* ''StreetFootball'': One of the Tekno Twins (Tek and No) played with this trope in "Alter Ego" until he learned the four boys in the Scottish team are brothers of [[TheSmurfettePrinciple the one girl]] of their team.
[[/folder]]

[[folder:Real Life]]
* Mary Kate Olsen tried this when she dyed her hair.
** It should be noted that the [[MaryKateAndAshleyOlsen Olsen twins]] are ''technically'' fraternal. You'd never be able to guess it, though.
** During their time as "Michelle" you couldn't tell them apart. Now it's a lot easier, even without the dye job.
*** While both of the twins continue to collaborate on their fashion and business ventures, only Mary Kate has continued acting as well, making her more visible as a solo presence than Ashley.
* Bill and Tom Kaulitz's... everything. From a young age, Bill cut his hair short and spiked it, Tom got dreads, then Bill got an eyebrow piercing, Tom got a lip piercing, Bill got a tongue piercing, Tom starting dressing 'gangsta', Bill started wearing make-up...
* Twin comedians Randy and Jason Sklar of ''Series/CheapSeats'' fame: Jason wears glasses (and has a more receding hairline).
* Canadian singers Tegan and Sara Quin typically have differing hairstyles and have different tattoos, and only make an effort to look alike for artistic reasons (such as the video they did with Tiesto "Feel It In My Bones").
* The Turnley twins are award winning photojournalists, and identical twins who [=HATE=] being confused for one another. One decided to grow a goatee while the other remains clean-shaven, which helps.
* Some schools actually ''require'' this for identical twins placed in the same class. The easiest way to do this is to designate colors for each child for some article of clothing--shoes, a bracelet, etc.
* The Dahm Triplets (models and actresses) had tiny, barely noticeable dots tattooed so their parents could tell them apart when they were babies: Jacklyn has none, Nicole has one, and Ericka has two.
[[/folder]]

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