Top 10 Adult Cartoon Characters with Childish Personalities

Basically, this list will be covering adult characters in cartoon series who tend to act more like children rather than actual adults.

For this list, we'll be counting down the top adult cartoon characters with childish personalities.

1. Peter Griffin - Family Guy

   

   Peter Griffin is the main protagonist and titular character of the American animated sitcom Family Guy. Peter is known for being foolish and doing random things for the sake of comedy. His wife, Lois Griffin, often nags him. He didn't pass the third grade, and his father is an Irish man.... read more

   Even Lois admits that being married to Peter is like being married to a child, as Peter is a literal man-child, especially during the early years of Family Guy before they turned him into a straight-up psychopath.

2. Richard Watterson - The Amazing World of Gumball

   

   Richard Watterson is the father of Gumball, Darwin, and Anais in the animated series The Amazing World of Gumball. He is a large pink rabbit known for his laziness and love of food. Despite his flaws, Richard is a loving father and husband.

   A complete man-child who's not the most intelligent and is also incredibly lazy.

3. Randy Marsh - South Park

   

   Randy Marsh is a fictional character in the animated television series South Park. He is the husband of Sharon Marsh and the father of Stan and Shelly Marsh. Randy first appeared in the Season One episode "Volcano" and is voiced by series co-creator Trey Parker.

   Possibly the most immature and childish of all the adults in South Park.

4. Goofy - Goof Troop

   

   Goofy is a cartoon character created by Walt Disney Productions in 1932. He is a tall, anthropomorphic black dog with a Southern accent.

   His usual outfit includes a turtleneck, vest, pants, shoes, white gloves, and a tall hat originally styled as a rumpled fedora. Goofy is a close friend of Mickey... read more

   Not just in the Goof Troop series, but in a lot of the Goofy cartoon shorts as well as the movies, he's shown to have a childish personality, which often embarrasses Max.

5. Mr. Turner - The Fairly OddParents

   

   He's as dumb as they come and one of the more childish adults in The Fairly OddParents.

6. Philip J. Fry - Futurama

   

   Philip J. Fry, more commonly called Fry, is the main protagonist of Futurama. He is voiced by Billy West. Fry is known for being incredibly stupid and impulsive, often saying and doing the most outlandish things without thinking.... read more

   Dimwitted, immature, and acts very childish in many situations. He ends up in all sorts of crazy scenarios that the others have to save him from.

7. Captain Hero - Drawn Together

   

   Captain Hero literally acts like a superhero child, which is the joke within the show.

8. Patrick Star - SpongeBob SquarePants

   

   Patrick Star is a fictional character in the American animated television series SpongeBob SquarePants. Created and designed by series creator Stephen Hillenburg, Patrick first appeared in the pilot episode "Help Wanted" on May 1, 1999. He is voiced by Bill Fagerbakke.... read more

9. Homer Simpson - The Simpsons

   

   Homer Jay Simpson is the main protagonist of the American animated television series The Simpsons, serving as the patriarch of the eponymous family. It is implied that he is not very intelligent, with a crayon stuck in his brain often cited as the reason. He works at the Springfield Nuclear Power Plant... read more

10. Goku - Dragon Ball Z

    

    Son Goku (Saiyan name Kakarrot) is the main protagonist of the Dragon Ball franchise created by Akira Toriyama in 1984. He possesses many powerful abilities, including super strength, ki control, flight, teleportation, super speed, enhanced reflexes, and Super Saiyan transformations that increase his... read more

    While he can be serious when it comes to battling, most other times Goku acts incredibly childish and clueless.

The Newcomers
11. ?

    Dr. Doofenschmirtz - Phineas & Ferb

    

    Dr. Heinz Doofenshmirtz is a fictional character and the primary antagonist of the animated series Phineas and Ferb. He is the founder and CEO of Doofenshmirtz Evil Incorporated and is known for creating elaborate devices called Inators in his attempts to take over the Tri-State Area. Despite his villainous... read more

12. ?

    Soos - Gravity Falls

    

    Soos Ramirez is a key character in the animated television series Gravity Falls. He works as the handyman at the Mystery Shack and often assists Dipper and Mabel Pines in their adventures. His kind-hearted and humorous nature has made him a fan favorite.

The Contenders

13. SpongeBob SquarePants - SpongeBob SquarePants

    

    SpongeBob SquarePants is a fictional character and the titular protagonist of the American animated television series of the same name. SpongeBob is known for his bright optimism and naive, childish tendencies. He often gets into trouble in Bikini Bottom.... read more

14. Stimpy - The Ren & Stimpy Show

    

15. Mr. Garrison - South Park

    

    Herbert Garrison is a recurring character in the American animated television series South Park. He is voiced by series co-creator Trey Parker. Over the course of the series, the character has undergone multiple transformations, including gender changes and shifts in political views, making him one of... read more

16. Dale Gribble - King of the Hill

    

17. Earthworm Jim - Earthworm Jim

    

    Earthworm Jim is the main protagonist of the Earthworm Jim video game series. He is a worm whose life changes after coming into contact with a cybernetic suit that grants him special powers, allowing him to battle nemeses like Evil the Cat, Psy-Crow, Queen Slug-for-a-Butt, and Bob the Killer Goldfish... read more

18. Eustace Bagge - Courage the Cowardly Dog

    

    Eustace Bagge is a fictional character from the Cartoon Network animated series Courage the Cowardly Dog. He is a cranky, money-obsessed farmer living in the middle of Nowhere, Kansas, with his wife Muriel and their dog Courage. Although often antagonistic toward Courage, Eustace occasionally relies... read more

19. Heffer Wolfe - Rocko's Modern Life

    

    Heffer Wolfe is a fictional character in the cartoon Rocko's Modern Life and its related comic book series. He is a steer who was adopted by a family of wolves. Heffer is Rocko's best friend and is known for his laid-back attitude and love of food.

20. Johnny Bravo - Johnny Bravo

    

21. Di Lung - Courage the Cowardly Dog

    

    Di Lung is a recurring character in the animated television series "Courage the Cowardly Dog". He often appears as an antagonist and serves as a key plot device in several episodes.

    In the episode "Courage the Fly", Di Lung transforms Courage into a fly. In another episode titled "Courage vs.... read more

22. Mr. Dink - Doug

    

23. Inspector Gadget - Inspector Gadget

    

24. Sterling Archer - Archer

    

    Sterling Malory Archer is a fictional character on the American adult animated sitcom Archer, which aired on the FX network from 2009 to 2017 and later moved to FXX. Voiced by H. Jon Benjamin, Archer is a self-absorbed and highly skilled secret agent. The character is known for his sharp wit, dysfunctional... read more

25. Mikey Simon - Kappa Mikey

26. Gonard - Kappa Mikey

27. Filburt Shellbach - Rocko's Modern Life

    

    Filburt Shellbach is a main and supporting character in the cartoon Rocko's Modern Life and the comic book series of the same name. He is a neurotic turtle who is one of Rocko's closest friends. The show originally aired on Nickelodeon from 1993 to 1996.