Because you like Eric Foreman in House M.D.

Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.

A responsible kid, Hugo Cabret is still capable of flights of fancy. See them in Hugo.

Adored, honored, and, most of all, feared, Miranda Priestly has the fashion industry in the palm of her hand. See them in The Devil Wears Prada.

Although she's the queen of killer comebacks and one-liners, Janis Ian is honest about her feelings and cares deeply about her friends. See them in Mean Girls.

Mario is a plumber who wears a ridiculous outfit, eats weird looking mushrooms, and fits himself inside your pipes so he can save a princess. See them in Super Mario Bros..

Pro tip: the psych ward is not the best place to find a mentor like Lisa Rowe. See them in Girl, Interrupted.

Clementine Kruczynski thinks that too many guys think she's a concept, or she completes them, or she's gonna make them alive. See them in Eternal Sunshine of the Spotless Mind.

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

Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.

After Otto Octavius' accident, he becomes fixated on finishing the reactor at any cost. See them in Marvel Cinematic Universe.

Fox Mulder is a devoted believer in aliens, monsters, and that the truth is out there. See them in The X-Files.

This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.