Always Identical Twins
Think of your favorite pair of fictional twins. Got them? Now, be honest: Are they identical twins? If you answered "yes," there's a reason for that. Identical twins show up far more frequently in fiction than fraternal (non-identical) twins. If you don't believe us, take a Wiki Walk through Twin Tropes. We'll wait. Welcome back! So why are fictional twins always identical? Well, for starters, identical twins are visually striking. They allow for comic plots, and they add symmetry and symbolism to a story. An Evil Twin is almost always an Identical Twin; how else could they impersonate the "good" twin? Fraternal twins, for all intents and purposes, are just regular siblings, and regular doesn't cut it in fictionland. Oh yes, and if it's an animated film or series, that makes it one less character for the artists to design and learn to draw. This trope is so pervasive that it even manifests when the twins are different genders— Half-Identical Twins shouldn't even be identical! Though it is certainly possible for fraternal twins to bear a Strong Family Resemblance, particularly in early childhood. There are sometimes aversions, almost exclusively in live action productions where twin actors or Double Vision are not available — though the work may instead have an actor Playing Their Own Twin. See also Alleged Lookalikes, when twins are said to be identical but are obviously not. Identical twins are highly prone to Speaking In Unison or Finishing Each Other's Sentences. Keep in mind if the twin isn't established at the beginning, prepare for rage from the fandom. Chalk this up to the Law of Conservation of Detail — if they're not identical, there's usually no need to establish them as twins rather than just siblings. In reality, fraternal twins are significantly more common than identical twins - only 8% of twin births are identical, or 0.1% of all births. But how would it look if in fiction only one character in a thousand had an identical twin?
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- In a recent series of commercials for State Farm insurance, Los Angeles Clippers point guard Chris Paul plays both himself and his (fictional) Separated at Birth twin Cliff, an insurance agent who was likewise born to assist.
Anime & Manga
- Fujio Akatsuka's Osomatsu Kun is about identical sextuplets. Yes, SIX characters that look exactly alike. The running gag in the early episodes was that other characters couldn't tell which is which.
- Ouran High School Host Club has the Hitachiin twins, who are so alike that no one had ever been able to tell them apart until they met Haruhi. Of course they use that similarity for their own amusement, but it's also implied that it's also the reason they can be a bit bitter and cynical.
- Tsubasa Reservoir Chronicle has Fai and Yuui , the "twins of misfortune" who are practically the same child made twice.
- Horitsuba Gakuen has the above mentioned twins as well as Syaoran and Syaoran. In the actual series they're clones but the Alternate Universe extra portrays them as identical twins. To make it even weirder in the main series Syaoran technically does have a twin — Watanuki, but the two of them are not identical at all.
- It is fairly common in most harem-type series to have a pair of identical twins as part of the cast.
- Played with in Eyeshield 21. Agon and Unsui dress and act very different from each other and whether they were fraternal or identical was left somewhat ambiguous for most of the series. However after Agon gets a haircut, everyone is amazed to see he and his brother are very much identical.
- Air Gear has identical octuplets, complete with identical outfits.
- Shion Sonozaki from Higurashi: When They Cry uses this to her advantage, as she assumes her sister's identity to manipulate as well as to cover up murder in the Watanagashi and Meakashi arcs. Her sister did the opposite, more jokingly, in the same arcs.
- The two twins switched identities when they were younger. Shion is technically the older twin, Mion, but has to live permanently as Shion since her little sister was branded with a tattoo instead of her.
- Naruto features two sets of identical twins (Hiashi and Hizashi and Sakon and Ukon). Coupled with Shadow-Clones and Generation Xerox, Masashi Kishimoto seems fond of twins... then again he himself is one, and his younger twin Seishi is also a mangaka.
- Yoh, the protagonist of Shaman King, is revealed to be the identical twin of Hao, the Big Bad of the series.
- Played with in Maomarimo: Mao and Ako remain fraternal twins even after Mao's Gender Bender, but the issue is raised by a background character who wonders why this trope wasn't invoked when Mao became a girl. Technically, Mao isn't Ako's twin (though it's plot-relevant that they were born on the same day) but Mao doesn't know he was adopted (and Ako is concealing it for reasons of her own) so their classmate gets a lecture on the difference between fraternal and identical twins instead.
- Takuma and Kazuma from Gakuen Babysitters look exactly alike, though they are easy to tell apart once one looks at their faces and judge their temperament; Takuma is perpetually cheerful and Kazuma is perpetually tearful.
- One episode of Sherlock Hound has Sherlock and Watson dealing with a pair of twins, one is a navy commander and the other is an insane treasure hunter.
- Gunnm has Elf and Zwölf, AKA AR/GR-11 and AR/GR-12 respectively, android clones of Gally, who inexplicably behaves as if they were identical twins, and often fill the role of Gally's Annoying Younger Siblings.
- Armored Trooper VOTOMS features the Schmittel twins, who are (at first) only differentiated by their uniform color and voices. Even so, the animators were incredibly prone to slip up at remembering which one was which.
- Played with in Blood+: Chiropteran queens are always born in pairs, with one having red eyes and one having blue eyes, but otherwise the two are completely identical.
- Futakoi is all about this trope. There are six pairs of identical twins in the same series.
- In Saki, Kana has three younger sisters- Shirona, Nazuna and Hina- who appear to be identical triplets. She often has to care for them, and while they don't show up much in the series proper, they often appear in Saki Biyori.
- Bleach: A major plot-point in the final arc centres around two brothers who are completely indistinguishable from each other. Their powers allow them to mimic the forms of others, an ability they discovered before birth when they learned to mimic each other. They were thus born visually identical. Loyd is killed when he mimics Kenpachi's sealed form. Kenpachi has to remove his eyepatch to grow stronger than the form of himself Loyd is using. However, Royd is mimicking Yhwach, so when the eyepatch-free Kenpachi confronts Royd, Royd instantly defeats him with his bare hands. He goes on to fight toe-to-toe with Yamamoto. Yamamoto does manage to kill him, but not before using all his power, including bankai, which allows the real Yhwach to kill Yamamoto.
- Tomo from Shounen Note has younger identical twin sisters.
- Tomomi and Mikage from Miracle Girls are identical twins with psychic powers. Tomomi has Boyish Short Hair and wears more tomboyish clothes than her sister so the fact they're identical is slightly less apparent than other examples.
- From Virgin Ripper, there's Kotori and Kotoha, completed with Coordinated Clothes and Theme Twin Naming.
- Wendy and Goldie, twin prostitutes from Frank Miller's Sin City. According to Marv, they even smell identical. Granted, he is insane and at one point, even mistakes one twin for the other despite knowing full well she was dead.
- Mandrake The Magician and his Evil Twin Derek.
- The Fix-it Twins who appeared in The Beano in the late 70s .
- La Ribambelle: Atchi and Atcha are two young Japanese twin brothers, who often talk and move in unison.
- Jommeke: Annemieke and Rozemieke, who are young twin girls who are basically the same characters and also look the same.
- A strange example are Thompson and Thomson who, apart from their moustaches, look exactly like twins. They dress, act and move the same and often finish each others' sentences. They also appear to live in the same house and even in the same bed! Still the linguistic difference in the spelling of their name suggest they are not related to each other at all. Furthermore, in the original French, they were known as Dupont & Dupond, which are even pronounced identically — this was kept up at least to some extent in most translations, including English, where they are known as Thompson and Thomson.
- A better example are Alfred and Nester Halambiek in King Ottocar's Sceptre, who are a good and evil twin, looking exactly alike, save for the fact that the good one smokes and is far-sighted.
- Suske en Wiske: In "De Schat van Beersel" an identical looking triplet plays an important role.
- Kirstin and Nicole Porter from the Ranma ˝ Fan Fic Boy Scouts ˝.
- Ethan and Evan Brightman from the Glee fanfic Dalton, who are heavily based on Fred and George Weasley.
- The Pony POV Series has Bonbon and her sister Moth. Justified because Moth isn't really her twin sister, she's a benign Changeling (unknown to Bonbon), though she still loves Bonbon like a sister.
- In the Dark World, Apple Pie had an identical twin named Poison Apple, though they had different Cutie Marks. Unfortunately, Poison Apple was killed by Fluttercruel.
- Little Miss Conjoined, two conjoined Mr. Men fan characters, are completely identical except for the color of their noses (one has a yellow nose and one has a green nose).
- Dyno and Mite from My Little Unicorn.
- Brothers Reiji and Yukio Ohmoto in Graduate Meeting Of Mutual Killing
- There are identical twin brother cops in Hot Fuzz— the Sergeants Turner (Bill Bailey's characters).
- Mary Kate and Ashley Olsen in everything they've done (except Full House, where the twins both played the same one character to stretch limits on how long very young child actors are allowed to work). They're actually fraternal twins, but look alike enough for identical-twin plots to work. However, as is often the case they started growing out of their Strong Family Resemblance as they approached adulthood.
- The Twins from The Matrix Reloaded.
- Both versions of The Parent Trap.
- In Pacific Rim, the Chinese pilots of Crimson Typhoon are played by real-life identical triplets the Luu Brothers. As well, the American Jaeger pilots of Romeo Blue, Bruce and Trevin Gage, were identical twins.
- The Prestige: Borden and Fallon.
- The Stabbington Brothers in Tangled.
- A pair of elderly women twins appear in the French film Amélie, buying food at the local fruit stand. They also Finish Each Other's Sentences.
- Seconds Apart: Seth and Jonah are identical twins who use their telepathic abilities to commit murders.
- Eli and Paul Sunday of There Will Be Blood.
- This was the main driving force behind the plot of Cronenberg's Dead Ringers.
- In Room in Rome, Natasha/Sasha/whatever her name is has an identical twin.
- Edwin Dingle and Buzzy Bellew in Wonder Man.
- Laurel and Audrey in The Pretty One are so similar that Laurel is able to take over Audrey's life when Audrey dies in a car accident.
- Cilla and Tina in I Miss You I Miss You
- Harry Potter: Fred and George Weasley and the Patil sisters.
- In the films, this trope was both confirmed by the Weasley brothers (played by real life identical twins James and Oliver Phelps) while averted in the fraternal twin Patil sisters, who were played by unrelated (though similar looking) actresses.
- The main character and his brother from The Spiderwick Chronicles
- The main characters of the T*Witches series.
- Jessica and Elizabeth Wakefield of Sweet Valley High. Not to mention the identical evil twins Nora and Margo, who other than hair color are so like Elizabeth and Jessica that they're even able to fool the twins' parents.
- Subverted in Honor Harrington: while Detweiler brothers look like identical sextuplets, they are, in fact, clones of their father.
- Elladan and Elrohir of The Lord of the Rings are not outwardly stated as being twins or even identical, but because their birth year is the same and elves wait at ten years between children, they are assumed to be twins. They are also said to be "So much alike were they, the sons of Elrond, that few could tell them apart: dark-haired, grey-eyed, and their faces elven-fair, clad alike in bright mail beneath cloaks of silver-grey." This implies that they are identical twins (ignoring the fact that more elves are described like that than not, and quite a few humans!)
- Tolkien also has Amrod and Amras, the youngest sons of Feanor from The Silmarillion: "twin brothers, alike in mood and face."
- Elrond himself was a twin; the text doesn't say they were identical, and after Elros chose to become mortal and age they became less so.
- Lampshaded in Chronicles of the Kencyrath, where the Edirr produce so many twins they usually do everything in twos.
- "The twins" (No Names Given) in Peter Pan, "who cannot be described because we should be sure to be describing the wrong one." Note that Peter doesn't really know what "twins" are, and the animated series Peter Pan & the Pirates subverted this trope by making the twins different colors and heights, the implication being that they're merely good buddies who were labelled "twins" because they are always together and finish each other's sentences.
- Jory and Nia from Cold Fire.
- Little Miss Twins from Mr. Men.
- Lottie and Lisa in Erich Kästner's novel Das doppelte Lottchen who are so identical-looking that when they switch places, their own parents don't realise they've gone home with the wrong child, even though they don't even like the same food, aren't good at the same things at school, and Lisa doesn't know how to cook.
- Enid Blyton's St. Clare's series has twins Pat and Isabel O'Sullivan. They do look alike, but their classmates can recognize them.
- Nypre and Deren, the first two characters introduced in the Stories Of Nypre are identical twins, though its never been said if they are so identical as to be indistinguishable from one another.
- Robert A. Heinlein seems to have liked this trope; not only are there the Stone twins in The Rolling Stones but Lazarus Long's twin sister-daughters (clones) in Time Enough for Love
- In Mockingjay the Star Squad includes identical twin sisters whose first names are never revealed. Katniss and the other characters simply refer to them as "Leeg 1" and "Leeg 2".
- Averted in First Light when Thea was told that the three girls on her locket were Lana, her mother, and her mother's twin who left the community with her twin. This was important because there could only be two girls born to any mother.
- Devil's Cape has a pair of identical twin brothers with identical superpowers, one working for their uncle in organized crime and the other as a superhero.
- Cilla and Tina in I Miss You I Miss You
Live Action TV
- Subverted in Our Miss Brooks, when Connie Brooks impersonates her nonexistent twin sister Bonnie so she can moonlight at a diner.
- Tia Landry and Tamera Campbell on Sister Sister are long-lost identical twins, played by real life twins Tia and Tamera Mowry.
- Emily and Katie Fitch from Skins are Identical twins, played by Real Life twins Kathryn and Megan Prescott respectively.
- Zack and Cody on The Suite Life of Zack and Cody, also played by Real Life twins. Puberty made them not so identical.
- The title characters of Liv and Maddie are, by contrast, played by one actress, Dove Cameron.
- Nearly every set of twins in The Pretender, from regular character Sydney and his brother Jacob down to the briefest one-off appearance. Particularly notable was the episode where Sydney visits a Twins Convention, which is populated entirely by identical twins sticking together and wearing co-ordinated outfits.
- The Bold And The Beautiful had a rather interesting example. Twins Stephanie and Phoebe Forrester were identical twins until they graduated high school. From that point on they've been fraternal.
- Friends: Phoebe and Ursula.
- Outrageous Fortune. Van and Jethro West. Both with wildly contrasting personalities.
- Peter Punk: The Pop twins Andy and Michael.
- Power Rangers Zeo has the character Trey of Triforia (also known as the original Gold Ranger). He is an alien whose race are composed of three separate entities that are normally unified as one, but due to being injured in battle cannot keep his singular form and has to appoint a successor to his Gold Ranger powers while he recovers. The Treys are played by identical triplets Ted, Tom and Tim Di Filippo. This series also introduces Tommy's twin brother David.
- The Doctor in the House franchise features two examples, achieved via Acting for Two (or Three).
- In "Brotherly Hate" from Doctor in Charge, the humourless crawler Lawrence Bingham is revealed to be one of a set of identical triplets, and always resented being overshadowed by his cooler brothers Lionel and Leonard.
- Professor of Surgery Sir Geoffrey Loftus is revealed to have an identical twin brother, Captain Norman Loftus, in the first episode of Doctor at Sea, so that when Drs. Waring and Stuart-Clark sign on as ship's surgeons, they will still be serving under a Loftus (and in contrast to the Bingham triplets, the Loftus brothers are very similar in personality).
- Guiding Light: Lujack Luvonaczek and Nick Spaulding.
- Another World: Marley and Vicky Hudson.
- All My Children: Adam and Stuart Chandler.
- Thunderstone has Sundance and Sutch, both played by Damien Fotiou
- The Stanley Dynamic plays with this trope. Larry and Luke are described as identical twins, but one of the brothers is an animated character.
- Teen Wolf has Aidan and Eathan.
- The Ravenloft setting has Laurie and Gennifer Weathermay-Foxgrove, identical twin monster-hunting heiresses, as well as Jacqueline and Louise Renier, identical wererat littermates.
- The mix-up in The Comedy of Errors is caused by two sets of identical twins confusing themselves for each other.
- Dante and Vergil from Devil May Cry, of the symbolism-heavy, Cain and Abel, Polar Opposite Twins variety. You can tell them apart because Vergil slicks his hair back, but they're also Color-Coded Characters: Vergil wears blue, Dante red. Two other pairs are Agni and Rudra from 3, and Bael and Dagon, a pair of frog demons in 4, the latter of whose in-game information even points out that, aside from their color, they are identical in terms of abilities and weaknesses.
- Redmond and Blutarch from Team Fortress 2, you can only tell them apart because Redmond wears a red suit and Blutarch wears a blue suit
- Ami and Mami Futami of The iDOLM@STER.
- Enter and Return in LEGO Island
- Koume and Kotate from The Legend of Zelda series. Identical apart from the gem on their forehead being different colours. A Link to the Past also featured Twin Lumberjacks and due to the model reuse in Majora's Mask there's at least three sets of twins identical in everything but clothing colour.
- One of the most reoccuring trainer classes in Pokémon is the "Twin" class, which features identical twin girls somewhere between 4 and 7.
- The Order of the Stick: Elan and Nale.
- Legostar Galactica: Bob and Rob Smith. Subverted in that Rob is an evil clone of Bob created by the Remulans as part of an abandoned infiltration plot.
- Sailor Sun Bay(Brad) and Heather after Bay's Gender Bender. We don't know if they were Half-Identical Twins prior to the Gender Bender because Brad has never been depicted in the comic. It's even a plot point because in the backstory Bay & Heather found each other (they'd been Separated at Birth) after Heather was hired to play Bay's role in a touring production of Sailor Sun based on her identical appearance.
- El Goonish Shive plays with this: Susan and Diane are heavily implied to be twins, although they have different hair colors and heights. However, one of them had recently gone through an intense magical awakening, which resulted in her getting a growth spurt and the change of her natural hair color. Originally both girls were blonde, and one of them dyed her hair.
- Magical 12th Graders: Sort of. Yeorum and Gyeowul are not twins, but they look nearly identical despite being a year apart. The "Gyeowul" running around is actually an older version of Yeorum, and not even Yeorum notices.
- Sherri and Terri from The Simpsons.
- The triplets in The Triplets of Belleville are basically the same type of characters.
- The DeeDees (real names Delia & Deidre Dennis) from Batman Beyond: Return of the Joker.
- Lo and Li, Azula's ancient caretakers, from Avatar: The Last Airbender. ATLA also had a set of twins in the episode "The Fortuneteller," who were identical except one was an Earthbender and one wasn't.
- Kim Possible's little brothers are identical twins who can only be told apart by the colour of their shirts.
- The Scottish Twins from Thomas the Tank Engine zigzag with this trope. In their backstory the twins intentionally removed their number plates so as to appear completely identical and pull a Twin Switch and escape from a railway that threatened to have them scrapped. After being employed at Sodor, though, they were given number and name plates, specifically so they could be told apart.
- Ingrid and Latoyah from Slacker Cats.
- The Twins in Superjail!, whose character models are literally copy and pasted most of the time.
- Parodied in the Futurama Soap Within a Show, All My Circuits, in which the main character is one of six identical septuplets.
- Dragon Tales: Quetzal and his brother Fernando.
- From Total Drama, the 3rd Generation cast features Amy and Samey. In the spin-off The Ridonculous Race, Mickey and Jay.
- The village of Kodhini, India has 6 times as many twins as the global average. On top of that, the majority of the twins are identical.
Fraternal TwinsNOTE: This section is reserved for twins who do not look alike at all; brother-sister twins who still look alike go to Half Identical Twins.
Anime & Manga
- Kirio and Kirika from Kamichama Karin.
- In Corsair, fraternal twins Aura and Leti are clearly related yet distinct, with Leti taking much more after their father's side and Aura taking more after their mother's side.
- "Syaoran Li" and "Watanuki Kimihiro" aka "Tsubasa Li 1" and, presumably, "Tsubasa Li 2 of Tsubasa Reservoir Chronicle and xxxHoLic are a particularly notable example, being that they're not identical despite one of them being a time travel duplicate of the other.
- Gundam SEED's Kira and Cagalli, being largely based on Luke and Leia. In addition to being non-identical, one is a genetically engineered superman and the other is completely unaltered.
- Kagami and Tsukasa Hiiragi from Lucky Star are fraternal twins who are drawn to have very different eye shapes (Tsukasa has Tareme Eyes and Kagami has Tsurime Eyes) and they also have different hairstyles. However, they do look more similar to each other than to any of their other family members, at least as far as their hair and eye colors are concerned.
- Bleach: Yuzu and Karin Kurosaki are twin sisters but are the complete opposite of each other. Yuzu is a pale-haired homemaker who gets excellent grades in school. Karin is a tough, dark-haired tomboy who leads her male peers in football. Yuzu resembles their mother Masaki while Karin resembles their father Isshin.
- Mairu and Kururi Orihara from Durarara!!, though they are sufficiently similar to possibly be just identical twins who decided to look different.
- Rin and Yukio Okamura from Blue Exorcist are fraternal twins who - despite looking somewhat alike when you take away Yukio's glasses - are opposites in pretty much everything, up to and including Rin being (half-)demon and Yukio being human. This didn't stop the fandom from going nuts with Twincest.
- Princess Fine and Princess Rein of Fushigiboshi No Futagohime (Twin Princesses of the Mysterious Star).
- Momiji and Kaede Fujimiya of Blue Seed are not only fraternal, they don't even resemble each other all that much. But their twinship is very important, because by being twins they split the power of the Kushinada,
- Bossun and Tsubaki from Sket Dance are eventually revealed to be twins who were Separated at Birth. Nobody noticed this before the revelation. Especially since Tsubaki is characterized by his long eyelashes, which Bossun don't have, and he also wears contacts, making them look less similar than they should be. However, with proper modifications, they're apparently similar enough to perform a convincing Twin Switch.
- To Love-Ru has two sets of twins, but neither set is identical.
- Yukino and Kanade from Candy Boy are twin sisters but they aren't identical. Their hair colors are different and the way they style their hair differs.
- Mitsudomoe has this with the main trio. They're triplets but look very different.
- In Dragon Ball, Androids 17 and 18 are twins, but look nothing alike, eye color aside.
- Lyrical Nanoha has Combat Cyborgs Otto and Deed, who are constantly referred to as the twins due to having been created from the same genes and at the same time. While they act alike and are always together, they don't look alike, even having different eye color and shades of brown hair.
- The Kamishiro twins from Yu Gi Oh Zexal, Ryoga/Shark and Rio, are twins with different gender. Since it's Yu-Gi-Oh!, they don't look even like they are related just like most siblings from the franchise, that's why they look more like lovers than siblings to the fans. Shark and Rio's unsimilarity is contrast to the Half-Identical Twins from Yu-Gi-Oh! 5D's, Lua and Luka.
- Suiseiseki and Souseiseki from Rozen Maiden are designed to be twins and they have the closest relationship among all seven sisters. While they do look similar, Suiseiseki has Rapunzel Hair and wears a green dress while Souseiseki has Boyish Short Hair and wears a blue suit. Their Mismatched Eyes also mirror each other's eye colors.
- Ember and Suntop from ElfQuest.
- The Phantom's son and daughter are twins.
- Crystar and Moltar from Crystar Crystal Warrior.
- Northstar and Aurora from Alpha Flight.
- Charles Xavier and Cassandra Nova, although she apparently is not exactly human.
- Quicksilver and Scarlet Witch: different genders, different hair colors, and different power sets.
- Scarlet Witch's twin boys eventually manage to straddle the line: they're absolutely identical in features and build, but have inherited the different coloring and power sets from their mother and uncle (Wiccan from Scarlet Witch, Speed from Quicksilver). For extra fun, they're not blood related.
- Pre-Crisis, Wonder Woman used to have a twin sister called Nubia. They were two different races (apparently due to being made of different colors of clay) and Nubia had darker hair.
- Luke and Leia from the Star Wars saga. They were Separated at Birth after their mother died by their birth to protect from the Dark Side, especially since their father joined it. That's why they didn't know that they were twins when they first met each other.
- High School Musical: Sharpay and Ryan are twins.
- Kermit the Frog and Fozzie Bear in The Great Muppet Caper—but don't try telling them they're not identical, nor even the same species.
- Leto and Ghanima Atreides, twin children of Muad'dib in Sci Fi Channel's Children of Dune adaptation.
- This is the High Concept underlying the film Twins, with the titular twins being played by Arnold Schwarzenegger and Danny DeVito
- The MacManus brothers from The Boondock Saints are fraternal twins, and in a deleted scene, they are seen conversing with their mother and asking which one of them came out first.
- Crash and Eddie the possums in Ice Age have almost the same personality and look very similar, but are obviously fraternal twins since Eddie has brown eyes, while Crash has blue eyes and a light stripe on his nose.
- In L. M. Montgomery's Anne of Green Gables series, among Anne and Gilbert's children are fraternal twins Anne and Diana, nicknamed "Nan" and "Di." Dark-haired Nan inherited her father's looks and her mother's wild imagination, while Di has her mother's red hair but in temperament is described as "very much her father's child." The fact that they are not identical baffles many of their peers and forms a minor plot point in Anne of Ingleside when a mischievous girl convinces the young Nan that all twins are identical, and the reason Nan doesn't look like her twin is that she was Switched at Birth.
- House of Leaves: Will Navidson, the main character of his piece of the story, has a fraternal twin brother, Tom.
- Faith* and James* Harrington, Honor Harrington's younger siblings.
- The Bobbsey Twins.
- Caramon and Raistlin Majere of Dragonlance. Caramon's a strapping warrior, Raistlin's a sickly wizard, and this difference drives 90% of their character development and plots.
- Leto and Ghanima Atreides, twin children of Muad'dib in Children of Dune]].
- Kit and Holly Fielding in the Dick Francis novels Break In and Bolt.
- "One Lonely Night" by Mickey Spillane. A radical politician campaigning against corruption and Dirty Communists hires Mike Hammer to catch his insane twin brother who committed a murder in public in apparent attempt to destroy his reputation (fortunately the politician was giving a speech before hundreds of people at the time). Mike discovers the brother is a fraternal twin who doesn't look anything like the politician, who hired a look-alike actor to give the speech and committed the murder himself.
Live Action TV
- On The Hogan Family the twins were explicitly fraternal.
- On Get Smart 99 gave birth to twins in the final season; it never came up whether or not they were identical, but given that they were boy & girl it is safe to assume they are fraternal because it is impossible for them to be genetically identical.
- Buffy and Jody from Family Affair were fraternal twins.
- Miss Parker and Mr Lyle in The Pretender.
- Brenda and Brandon Walsh Beverly Hills 90210 are fraternal twins.
- The Bold and the Beautiful had a rather interesting example. Ridge and Taylor's daughters Steffy and Phoebe were identical twins and played by identical twins up until the point where the characters left for London. Phoebe is the first to return, now played by a new actress. When Steffy returns a while later she is played by a different actress than Phoebe and the twins are now fraternal.
- One episode of The Suite Life of Zack and Cody, called "Twins at the Tipton" had Dirk and Kirk, fraternal twins Maddie and London dated.
- The Big Bang Theory has Sheldon and his twin sister, Missy, who look nothing alike except for hair color.
- In the Elementary episode "While You Were Sleeping", when Sherlock Holmes learns that Yvette Ellison, a coma patient identified as a murderer by a witness, has a twin sister called Rebecca, he automatically suspects Rebecca of being the killer. He is very surprised to learn that Yvette and Rebecca are fraternal twins who look different enough that no one would mistake one for the other. Yvette is the killer. Her coma is medically induced to provide her with an alibi for the murders of all her siblings.
- Its Always Sunny In Philadelphia has Dennis and Dee Reynolds, another brother/sister pair.
- Days of Our Lives: Eric and Sami Brady.
- One Life to Live: Jessica and Natalie Buchanan.
- The premise of Nicky Ricky Dicky And Dawn with quadruplets instead of twins.
Religion And Mythology
- The Bible has Jacob and Esau. Esau is described as red and hairy, and Jacob, as plain and smooth-skinned. Since Esau was born first (by a minute or so), he was treated as the firstborn and was supposed to receive the birthright, until Jacob bought it from him.
- Alexander and Rosella from King's Quest. Alexander is dark-haired, dark-eyed, and medium-skinned, while Rosella is fair-skinned and blonde and blue-eyed.
- Kid and Sara from Ever17 are fraternal twins.
- For a series that's so out of touch with reality, you wouldn't expect Super Mario Bros. to feature realistic fraternal twins, but the heroes are, in fact, same-sex twins that look similar enough that they're clearly related, but different enough that they're easy to tell apart. Luigi was originally a Palette Swap of his brother, yet the Mario Bros. weren't canonized as twins until long after Luigi gained a more individual design.
- The Sims 2 has a mechanic resetting how the parents' genetics and features are mixed after every birth, including between twins. Identical twins are thus impossible unless that mechanic is glitching (which is not uncommon).
- However, you can create identical twins in Create-A-Sim and Angela and Lillth Pleasant are existing identical twins.
- Lucas and Claus from Mother 3. Based on in-game evidence, they're still similar enough that you can confuse the two if you don't know them well. What really gives them away, though, is their hair; Lucas is blonde, Claus is a redhead.
- While they are half identical in Final Fantasy IV, by The After Years, twins Palom and Porom have grown to look very different. Their earlier similarities can be justified by them originally being very young children, with puberty making their differences much more obvious.
- Twin brothers Sabin and Edgar Figaro of Final Fantasy VI have a certain family resemblance, but greatly different hairstyles and builds (Edgar has long hair and an average build, Sabin has short-cropped spikes and is built like a bear) mean that no one is likely to mistake them for one another. Whether they are fraternal twins or genetically identical ones who just happened to develop differently is not explored.
- Kyou and Ryou Fujibayashi of CLANNAD are similar to Kagami and Tsukasa Hiiragi in that Ryou has Tareme Eyes and Kyou has Tsurime Eyes. Though they're more alike than most fraternal twins with similar colored hair and eyes. In the OVA for Kyou's route it takes Tomoya several minutes to realize that he's talking to Kyou and not Ryou after she cut her hair.
- In Dangan Ronpa, Mukuro Ikusaba and Junko Enoshima are fraternal twin sisters who look enough like each other with the right hairstyle, makeup and clothing that they can pass for each other, a fact used to switch Ikusaba for Enoshima, but there are enough physical differences like Ikusaba's Youthful Freckles that she has to brush off as being the result of her photographs being retouched when Naegi comments on it. If not using tricks, it's hard to tell that they are twins at all, considering that Enoshima has blond Mega Twintails, round blue eyes, big breasts and ceramic skin while Ikusaba has short black hair, narrow grey eyes, smaller breasts and greyish pale skin.
- North and South Dakota from Red vs. Blue are a quirky example. They don't look that much alike out of their armor aside from both having white-blond hair, but when suited up their armor is near-identical compared to the other Freelancers.
- Alex and Dan in The Dreamland Chronicles are a rare case of fraternal twins of the same gender. This is likely inspired by the creator's fraternal twin sons.
- Surama and Hafmar in Wurr.
- Shotgun Shuffle has statuesque blonde Ellie and her petite black-haired sister Cinnamon. Of the seven Buckingham sisters Ellie and Cinnamon resemble each other the least in both looks and personality despite being the only twins. Since Cinnamon is generally referred to as "the dumb one" Ellie is constantly annoyed that they're twins.
- Hiroki and Masuji in Seiyuu CRUSH! are fraternal twin brothers who are opposites in looks and personality. They are shown quarreling a lot when they first appear, but later another kind of relationship is revealed.
- The Simpsons:
- Patty and Selma, who are mostly the same in physical appearance and behaviour, yet their hair cuts and dresses are different. Also Selma is heterosexual, while Patty is lesbian.
- Apu and his wife have octoplets, courtesy of fertilization injections. At least one future episode revealed each of those 8 children would go on to have 8 children each, making 64 in total.
- The Venture Bros. has two sets of fraternal twins. Jonas Junior & Thadeus and Hank & Dean, the latter two being the title characters.
- Jackal and Hyena of Gargoyles both have brown hair and are completely Ax-Crazy, but that's where the similarities end.
- In Transformers several characters are twins, and there's usually at least one pair in each continuity. However they are never identical - at the very least they have strikingly different colours like Jetfire and Jetstorm in Transformers Animated and other times they look different in many other ways, like Sideswipe and Sunstreaker in G1 - who even had radically different personalities. This is obviously for the purpose of making and selling more toys. Family relationships are actually rarely used to explain the Palette Swap characters, who get a more technical explanation if it's explained at all.
- Hurricanes: Helmut and Yorg Beethoven. Helmut is taller and Yorg is more muscular.
- Gravity Falls focuses mainly on the adventures of fraternal twins, Dipper and Mabel Pines, occasionally referred to collectively as the Mystery Twins. They are young enough for their physical similarity to be explainable.
- Eventually, we find out that their great uncle slash summer caretaker also has a twin brother. Judging by their differing body types, chin shapes, eye colors (possibly) and one of them having a minor birth defect that the other doesn't share, they're also fraternal.
- Incidentally, there is such a thing as a genetic predisposition toward having fraternal twins, which might explain how the Pines family produced two pairs within three generations. Identical twins are pretty much a random occurence and would thus be alot more unlikely to happen twice in the same family.