History Main / SingleMindedTwins

%%* Ian and Jeremy from ''WesternAnimation/BarbieAndTheDiamondCastle''.
* In ''WesternAnimation/BatmanBeyondReturnOfTheJoker'', Dee-Dee/The Deeds/Delia & Deidre Dennis are twin sisters who may as well be two halves of one person; they currently provide the page image. Besides looking and talking exactly the same (both twins are rapidly and amusingly voiced by Creator/MelissaJoanHart), they move and fight in incredibly effective teamwork. Just goes to show how devastating it would be if villains didn't [[MookChivalry attack the hero one at a time]]...
** In ''[[WesternAnimation/JusticeLeague Justice League Unlimited]]'' they return for an episode set in a time travel corrupted future where they're given the power to duplicate, making even more copies with the same single mind.
** They have been known to address one another as 'Dee Dee'; as in "You think so, Dee Dee?" "Oh yeah, Dee Dee."

* Twirly and Whirly from the ''WesternAnimation/BitsyBears'' pilot.

* The Bully Brothers from ''WesternAnimation/ThePerilsOfPenelopePitstop''.

* Sherri and Terri in ''WesternAnimation/TheSimpsons''.

* ''WesternAnimation/{{Superjail}}'''s very own Twins fall under this trope most of the time they appear, and that's only one of the many strange parts to them.

* [[HalfIdenticalTwins Phil and Lil]] from earlier seasons of ''WesternAnimation/{{Rugrats}}'' were pretty much the same character, save for the occasional argument: Rambunctious, fun loving, and drawn to all things gross. In fact, the one time they ''tried'' to be different people, the episode ended with them deciding they were happier being like each other. Later writers decided to tone down Lil's tomboyishness and [[TomboyWithAGirlyStreak have her start referring to herself as "prettyful".]]
* ''WesternAnimation/BeCoolScoobyDoo'' has a set of these in one ep. They are about ten, and must finish eachother's sentences. Even if they are just saying "yes". Also played with when one disappears. The other can only start a sentence, but can not complete the thought.
* ''WesternAnimation/AdventureTime'' has the Flying Lettuce Brothers, old associates of Jake. Other than using a glove and a wristwatch in different arms, they look and sound identical. Speaking in unison is part of their talent, as they only need to hear a single sentence and they can modulate their voice to sound exactly like the person who talked.
* The Twins in ''WesternAnimation/HowToTrainYourDragon'' and the SpinOff TV show ''WesternAnimation/DragonsRidersOfBerk'', not as much single-minded as other examples, but their personalities are so alike that they're generally treated as a single character, and they ride the same dragon and, as such, really do only count as one unit in a mounted battle. In their case is their PlayedForLaughs SociopathicHero behavior. Probably consequence that neither of them is very bright.
* The Rutile twins in ''WesternAnimation/StevenUniverse'' are ConjoinedTwins with a tendency to repeat and rephrase what the other twin just said, or sometimes finish each others' sentences. As they also share a [[HeartDrive gemstone]], they may ''literally'' have a single mind.
* Although they're not confirmed to be siblings, the very similar-looking (and similarly-[[ThemeTwinNaming named]]) Frix and Frax in ''ComicBook/BuckyOHareAndTheToadWars'' are almost never seen apart. The only exceptions are:
** "Home, Swampy, Home": When the villains flee the base, Frax is left behind because the control room doors slam shut in his face. Thus only Frix is with the Air Marshal at the end.
** "On the Blink": Frax corners Quentin the koala up a tree and shakes it to make him fall out. Frix is nowhere in sight. Frax ''does'' yell offscreen to someone, though, and indeed Frix did appear in the scene in the script.
* ''WesternAnimation/RosiesRules'': Subverted in "Rosie's Twin Day." Quinn and Jun do everything in sync at first, but then show Rosie how they are different from each other, and tell her about how they don't always do everything together. For example, Quinn likes looking at bugs, but Jun likes climbing trees.

* Hip and Hop from the Western ''WesternAnimation/SuperMarioBros'' cartoons, based loosely on the Iggy and Lemmy (who had no such relation) from the games ''VideoGame/SuperMarioBros3'' and ''VideoGame/SuperMarioWorld''. ''Mario'' fandom is fond of the cartoon personalities of all the Koopalings, however, and so [[PatchworkFic uses this trope but the games' names]].

* Más y Menos from ''WesternAnimation/TeenTitans''; they actually have to be touching to use their super-powers.

* Mairu and Kururi, [[spoiler: Izaya Orihara]]'s younger sisters in ''Literature/{{Durarara}}'' -- Though they outwardly act as PolarOppositeTwins. Playing with the trope a bit, the twins' single-mindedness is an indicator of how [[CuteAndPsycho unhinged]] and [[CreepyTwins detached from reality]] growing up with [[spoiler:Izaya]] has made them.

* In ''LightNovel/ACertainMagicalIndex'' this is portrayed both more literally than normal and more ''expansively'' than normal. There are just over ten thousand Misaka clones left out of an original twenty thousand and they're all referred to both as the Sisters and as the ''actual'' sisters of Misaka Mikoto. Though some characters view them as individuals, it would be more accurate to stay each one is a unique unit, all of which are an addition to the overall Misaka network. So in truth they really do all have one mind and they are constantly in mental contact, so when multiple Misakas are present they tend to finish each others sentences without hesitation.

* Mairu and Kururi, [[spoiler: Izaya Orihara]]'s younger sisters in ''LightNovel/{{Durarara}}'' -- Though they outwardly act as PolarOppositeTwins. Playing with the trope a bit, the twins' single-mindedness is an indicator of how [[CuteAndPsycho unhinged]] and [[CreepyTwins detached from reality]] growing up with [[spoiler:Izaya]] has made them.
* Imari and Sayoka from ''LightNovel/{{Inukami}}'', two of Kaoru's Inukami, speak and act in unison.

* Ai and Ren from ''LightNovel/{{Kanokon}}'', the poor ninja duo.

* The second season of ''LightNovel/{{Slayers}}'' has a pair of these; identical twin martial artists who want to be famous pop idols and who get into a fight over what Lina thinks is a book of spells, but turns out to be a collection of lost folk remedies. For added measure, Mimi and Nene are [[ShoutOut physically identical]] to Manga/RanmaOneHalf's Shampoo.

* Cersei and Jaime Lannister from ''Literature/ASongOfIceAndFire'' think of themselves this way -- Jaime is convinced that "If I were a woman, I would be Cersei," and Cersei says she only feels whole [[{{Twincest}} during sex with Jaime]]. Their POV chapters, however, reveal that they're wrong about this.

** ''Hello Danny, come play with us''.

** Hello Danny, come play with us.

* [[http://www.scp-wiki.net/scp-284 SCP-284, The Twins]], from the ''Wiki/SCPFoundation'' are ''literally'' Single-Minded Twins, in the sense that they both [[HiveMind share a single brain]] between them, any [[TwinTelepathy thoughts]] or sensations experienced by one is also experienced by the other.

** Castor and Pollux in ''Literature/TheRollingStones'' fit this trope as well Laz and Lor do, and exhibit similar twin behaviours.

* ''FanFic/{{BuildingFaith}}'' zigzags this - Faith and Molly Carpenter are very much distinct people ... as long as their TwinTelepathy is not at full blast. When it is? They are literally [[HiveMind single minded twins]].

* The music video to Cinderella's "Shake Me" pays homage to the eponymous fairy tale, showing the wicked stepsisters as twins, talking in unison to the Cinderella character that they're heading to the band's concert while she has to stay home to do work.

* ''WesternAnimation/CampLazlo'': Chip and Skip may as well be interchangeable given how [[TheDitz equally simpleminded]] they both are.

* The Twins in ''WesternAnimation/HowToTrainYourDragon'' and the SpinOff TV show ''WesternAnimation/DragonsRidersOfBerk'', not as much single-minded as other examples, but their personalities are so alike that they're generally treated as a single character. In their case is their PlayedForLaughs SociopathicHero behavior. Probably consequence that neither of them is very bright.

* In the picture book ''Ten Brothers With Camels'', Miran and Diran are indistinguishable twins who do everything together: "We tell them apart by their hats." In every picture the two are in the same position.

* ''AsianAnimation/NoonboryAndTheSuper7'' has single minded ''triplets'': The Builder Borys.