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Gumball's Brain

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Gumball's Brain




Character Information
Gender: Male ♂
Species: Brain
Age: 12
Friends: Gumball and Rocky
Occupation: Brain
First Appearance: "The Party" (mentioned) "The Genius" (first physical appearance)
Voice: Kerry Shale

Gumball's Brain is a minor character in The Amazing World of Gumball, who appears in "The Genius." He is used by Gumball for thinking and, apparently, he has signed a contract with him. He is also mentioned in "The Banana." He returned in Season 3 in the episode "The Coach," telling Gumball's whole body to panic because Gumball is exercising.


In Season 1, Gumball's brain looks like a typical animated brain, with big dark blue eyes, eyebrows, two thin arms and legs, and a mouth. Meanwhile, in Season 2, he is redesigned to look like a normal brain in "The Bumpkin." Although, in The Others, his appearance changed for just the events of that episode.

Episode Appearances

Season 1

Season 2

Season 3

Season 4



  • Although it is Gumball's brain, Gumball was able to think without it. It also seems that Gumball is more intelligent than his own brain, as he was "teaching" it how to be smart.
  • He appeared to be much bigger in "The Bumpkin."
  • A similar brain wearing a hat can be seen in "Halloween" at the house party.
  • He got his first major role in "The Genius."
  • Gumball's brain's appearance has changed various times throughout the series
    • Gumball's Brain's voice has also changed various times.

ve Characters
Italicized characters are considered extremely minor
The Wattersons GumballDarwinAnaisNicoleRichardGranny JojoEvil Turtle (family pet) • Frankie
The Robinsons GaylordMargaretRocky
The Fitzgeralds PennyPatrickMrs. FitzgeraldPenny's SisterMr. Cuddles (family pet)
The Wilsons TobiasJackieHaroldRachel
The Bananas Banana JoeBanana BarbaraBanana Bob
The Rexes Tina RexMr. Rex
The Pepperonis SicilianaMr. Pepperoni
The Jötunheims HectorMrs. Jötunheim
The Parhams Felicity ParhamBilly Parham
School faculty Principal BrownMiss SimianMr. SmallCoachSchool NurseLibrarianMr. Corneille
Student body CarrieMasamiAlanBobertSarahLeslieTeriEggheadsCarmenMollyJamieIdahoAntonOchoJukeSussieClaytonWilliamRobHot Dog GuyGreen BearMushroomFuzzballRazor8-Bit DogBomb GuyHandPink BearRotten CupcakeRatClareJaredWilsonJodiePixel OctopusBulldogGorillaMoleJosh
The Senior Citizens Marvin FinklehimerGaryCrocodile WomanLouieBlue ElephantBettyDonald
Other Characters LarryDoughnut SheriffSal Left ThumbCupcake WomanKennethKarenPantsbullyNeck BeardHexagon LadySanta ClausNewspaper Employee3D Cube EmployeeConstruction MenThe HoboShooting StarRosieMother and SonClipboard MenThe SunEarthThe MoonOrange GuardsBandage DoctorMelted Cheese GuyHamburger CopCowboyJeff BensonFloppy DiskPrisonersExercise BaconShape PeopleTeal Tow Truck Driver'SaturnCarltonTroyGreen Security GuardBandage ParamedicsGhostsCoffee CopCarmen's fatherIdaho's familyBlack RectangleFrench FriesAnton's ParentsRichwood High StudentsGumball's BrainIdaho's sisterDr. ButtSussie's parentsRipley 2000 ManagerGoblinManly WarriorMother and BabyCharlieDrum Kit Guy
Single appearance JealousyVirusMr. KreeseThe InternetDaniel LennardAnt-OneAnt-TwoAnton ClonesZachScary Old ManScary Old LadyMr. ChanaxChicken BucketVladSluzzle DudeButterflyChimeraNew BobertHot Dog Guy LookalikeYellow GuyEvil Turtle's BabiesYuki
Objects Daisy the DonkeyWandaElmore's DollarPlanet CosmosLucky HelmetUniverse Control Remote
Non-anthropomorphic characters Purple SquirrelCyclops DogCube DogSausage DogTan DogPink SquirrelThe CreaturesBlitzerChris MorrisRats

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