Because you like Butters Stotch in South Park

A short-tempered guy, Bowser is determined to wreak havoc on the Mushroom Kingdom. See them in Super Mario Bros..

C is for cookie, and that's more than good enough for him. See them in Sesame Street.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

Shaggy might be a bit of a slacker, but his heart and his stomach are usually in the right place. See them in Scooby-Doo.

Donatello might come off as a tad nerdy, but don't let his geekiness fool you. He's a trained ninja and a skilled fighter. See them in Teenage Mutant Ninja Turtles.

The cutest kitty this side of the galaxy, Nepeta Leijon is mischievous, caring, and obsessed with romance. See them in Homestuck.

Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.

Ursula will oh-so-generously grant your wishes for a price. See them in The Little Mermaid.

Mr. Fox will never truly be happy without a dead chicken between his chompers. See them in Fantastic Mr. Fox.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.

Columbus can't trust anyone. The first girl he let into his life tried to eat him. See them in Zombieland .