Because you like Sideshow Bob in The Simpsons

Shawn Hunter may be a bit of a rebellious bad boy, but he has a heart that's pure gold. See them in Boy Meets World.

Javert is an inspector with a single-minded focus: to bring criminals to justice. See them in Les Miserables.

Working as a captain in the American Expeditionary Forces and a spy for British Intelligence, Steve Trevor wants to end World War I once and for all. See them in DC Extended Universe.

Viking Astrid Hofferson has it all: brains, brawn, and some killer braids. See them in How to Train Your Dragon.

Hunting ghosts is both a job and a passion for Abby Yates. See them in Ghostbusters (2016).

Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.

Tom Haverford is set on being a world-renowned entrepreneur who dates models. Problem is, he's stuck in Indiana with a lazy business partner. See them in Parks and Recreation.

Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.

Patrick Star enjoys life's simple pleasures because he can't wrap his brain around anything more complicated. See them in SpongeBob SquarePants.

Donkey is proof that if you're annoying enough you can change the world; he's the reason that his friend Shrek does, well, anything. See them in Shrek.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.