Twins are often treated as the "thinking engine" who come up with plans (be those devious or truly smart) because, well, there are two of them, and they are on the same wavelength (more so than just regular friends) so they can come up with things among the two of them more effectively than other two characters, which would involve a lot more explaining yourself and arguing.

Putting these guys on MissionControl is also quite logical - often you need to show that technical equipment takes more than one person to operate, but both people essentially do the same task, and it would be a waste to characterize separately two people who essentially fulfill the same role on the team (or, on the other end, sacrifice two interesting characters to do one job).

May overlap with TricksterTwins.



[[folder: Anime and Manga ]]

* In ''Anime/{{K}}'', the Weismann twins were this, as the head scientists working on the Slates, even at a young age. [[spoiler: Claudia dies and Adolf becomes immortal, but retreats to live in a blimp for 70 years because of his grief. When he does return and must solve a new problem with the Slates, he relies on Claudia's notes a lot, and says she was always the smarter one and it's incredibly hard for him to do this without her.]]
* In ''Manga/ProjectArms'', there are Al and Jeff Bowen, evil genius identical twins [[spoiler: until Al's HeelFaceTurn and Jeff's death]], and also Katsumi and Kei, who are identical female twins; Kei's TheChick, and Katsumi's a DamselInDistress and a major plot point.


[[folder: Fan Fic ]]

* In ''Franchise/HarryPotter'' fan works, [[spoiler:Luna Lovegood's twin sons, Lorcan and Lysander, are often depicted as this. Not surprising, as their parents are both world-renowned naturalists and their mother at least was in Ravenclaw House during her schooling (the House that values intelligence above all else)]].


[[folder: Film - Animation ]]

* 3 and 4 from ''WesternAnimation/{{Nine}}'', also SingleMindedTwins (and, if it means anything, mute).


[[folder: Film - Live Action ]]

* The twins in ''Film/MenInBlack''


[[folder: Literature ]]

* Fred and George Weasley from ''Literature/HarryPotter'', even though they're more TricksterTwins, it did take a certain amount of brain power to make all the Weasley Wizard Wheezes.
* Beltira and Belkira of the ''Literature/{{Belgariad}}'' and ''Literature/{{Malloreon}}''. They spend most of their time in the Vale of Aldur trying to decipher a multitude of complex prophecies, while the other sorcerers act on what little information they can find.


[[folder: Live Action TV ]]

* ''Series/PowerRangersRPM'' had genius twins Gem and Gemma, though their intelligence was heavily overshadowed by the fact that they were CuteAndPsycho {{Cloud Cuckoolander}}s. They instead collectively filled the SixthRanger role, leaving MissionControl duties to Dr. K.
* ''[[ The Edison Twins]]''.
* The Bynars from ''Series/StarTrekTheNextGeneration'' are an ''[[PlanetOfHats entire alien species]]'' of cyborg Think Twins.
* Though they aren't related, Leopold Fitz and Jemma Simmons (colloquially known as Fitz-Simmons) on ''Series/AgentsofSHIELD'' qualify.


[[folder: Western Animation ]]

* ''WesternAnimation/{{Doug}}'': Al and Moo Sleech
* ''WesternAnimation/{{Detention}}'': Orangejella and Lemonjella [=LaBelle=]
* The "tweebs" from ''WesternAnimation/KimPossible''. Granted, basically everyone in their family is a genius, including Kim (who's simply not as into science as the rest of her family is). They also end up starting high school at only twelve.
* ''WesternAnimation/JohnnyTest'': Susan and Mary Test, Johnny's older sisters.
* A set of overachiever twins seen in one episode of ''WesternAnimation/StaticShock.''
* ''WesternAnimation/ThunderCats'' had Wily Kit and Wily Kat, who, [[MeaningfulName as their names suggest]], were quite wily. Lion-O had to face the pair of them to overcome the [[TricksterTwins Trial of Cunning]].
* The Platypus Brothers from ''WesternAnimation/{{Tazmania}}''.
* Rhona and Andy in ''WesternAnimation/IronManArmoredAdventures''.[[spoiler: Subverted in that Rhona turns out to be an only child and that Andy's an android she built]].


[[folder: Real Life ]]

* Can be truth in television, as research studies of twins can attest.