Because you like Principal Skinner in The Simpsons

Thanos is an intergalactic warlord, on the hunt for infinite power. See them in Marvel Cinematic Universe.

Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.

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

Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

Samwell Tarly is a scholar, not a fighter. But that's not good for an aspiring member of the Night's Watch. See them in Game of Thrones.

A poised, stately man-out-of-time, Ichabod Crane typically faces the modern world with wry quip. See them in Sleepy Hollow.

Rick Dalton is an aging actor with insecurity issues. See them in Once Upon a Time in Hollywood.

Ezra Fitz is a young English teacher hounded by his own relationship mistakes. See them in Pretty Little Liars.

Talking to a stranger on a train is the best decision Jesse Wallace ever made. See them in Before Sunrise.

Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.

Mac is a karate-chopping, beer-chugging schemer. See them in It's Always Sunny in Philadelphia .