Because you like Principal Skinner in The Simpsons

A kind and funny valedictorian, Gwen Stacy likes to make out with Spider-man when her homework's done. See them in Marvel Cinematic Universe.

Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.

A born psychopath, don't expect Michael Myers to understand the difference between right and wrong. See them in Halloween.

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

Jax Teller can be cool or vengeful, calm or wrathful, depending on the situation. See them in Sons of Anarchy.

A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.

A photographic memory is just one of many skills Lexie Grey brings to the table as a surgeon. See them in Grey's Anatomy.

Manipulative, conniving, and ruthless, Mr. Gold is enigmatic no matter what world he's in. See them in Once Upon a Time.

Susan Pevensie is sensible, practical, and fiercely protective of those she loves. See them in The Chronicles of Narnia.

The irrepressible Lucy Ricardo has never met a challenge she couldn't scheme her way into or out of. See them in I Love Lucy.

It's a race against time to develop his theory of the origins of the Universe before Stephen Hawking's body and mind give out. See them in The Theory of Everything.