Because you like Christine Daae in The Phantom of the Opera

Will Herondale is an emotionally distant bad boy with a secret. See them in Clockwork Angel .

Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.

A fourth grader without a moral compass, Eric Cartman lives on KFC, Taco Bell, Pizza Hut, and Cheesy Poofs. See them in South Park.

It's hard to tell if Dean Winchester cares more about saving the world or his 1967 Chevy Impala. See them in Supernatural.

Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.

Once a loving family man, James Heller is now dark, damaged, and hell-bent on getting revenge. See them in Prototype Series.

When a half-breed breaks the rules, John Constantine deports them straight back to hell. He's trying to buy his way into heaven. See them in Constantine.

His superiority complex coupled with his bitter desire for revenge makes Vegeta a formidable foe. See them in Dragon Ball Z.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.

Castiel might be an immortal angel, but the human world is still more than a little confusing. See them in Supernatural.

Melinda May is a woman of few words and many talents. Most of them martial. See them in Marvel Cinematic Universe.