Because you like Mark Watney in The Martian

Gilderoy Lockhart's biggest idol is himself. See them in Harry Potter Series.

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.

Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.

Roxie Hart can shoot for the stars even from behind bars. See them in Chicago.

Cher Horowitz may have a problem with hubris, but she looks utterly fabulous while learning a lesson about the dangers of meddling. See them in Clueless.

Not only will Emmett Brown's time-saving gadgets help you travel with ease, his tinkering on your car will help you get wherever you need to go. Fast. See them in Back to the Future.

A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

An agile and powerful swordswoman, Saber is a dignified warrior down to her bones. See them in Fate/Stay Night.

This high school queen bee has everything, including a genius-level IQ—a fact Lydia Martin keeps hidden to maintain her image. See them in Teen Wolf.

Bo Dennis once dreamed of being prom queen, but then she found out that she's part of some ageless secret race that feeds on humans. See them in Lost Girl.

A sadistic sociopath, Lil Z is helping make the City of God slum a Hell on Earth. See them in City of God.