Because you like Stephen Hawking in The Theory of Everything

Though Ray Holt is a man of few words and even fewer smiles, he cares deeply about his precinct and detectives. See them in Brooklyn Nine-Nine.

A speed-loving daredevil who lives on the edge, Sonic is as brave as he is cocky. See them in Sonic the Hedgehog.

Bad-ass Rayne has sworn her life to finding and destroying her vampire dad, Kagan, and killing as many other vampires as she can in the bargain. See them in BloodRayne .

Living with a curse, Kyo Sohma is sick of being treated like garbage his whole life. See them in Fruits Basket.

This is not a democracy. According to Torrance Shipman, it's a "cheerocracy." See them in Bring It On.

There are certain souls the surprisingly sensitive Death would rather not reap. See them in The Book Thief.

If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.

James T. Kirk is more than ready to face the final frontier. See them in Star Trek.

Greenpeace? No, this brave eco-terrorist is waging Greenwar. See them in Final Fantasy Series.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

Foul mouthed and disturbingly comfortable with violence, Hit-Girl is a precocious assassin who doesn't need anyone's protection. See them in Kick-Ass.

As the White House Press Secretary, C. J. Cregg is a master of verbal karate and the best damn basketball player in Ohio Valley history. See them in The West Wing.