Because you like Alex Karev in Grey's Anatomy

Nina Sayer finally landed the role of prima ballerina, but as tension ramps up in rehearsal, she starts losing her mind. See them in Black Swan.

Part of an elite team of investigators, Abby Sciuto is the happiest Goth to ever work in law enforcement. See them in NCIS.

This suave con-man doesn't just want to become rich. Danny Ocean wants to rip off the guy who stole his wife in the biggest Vegas con. See them in Ocean's Eleven.

The Kid doesn't talk. He just acts with determination. See them in Bastion.

Catherine Linton was once spontaneous and rowdy but ever since marrying the wealthy Edgar, she has morphed into a boiling pot of emotional outbursts. See them in Wuthering Heights.

A premier member of the leather cat-suit club, Selene can chill you with a stony look, or ice you with her ninja moves. See them in Underworld.

Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.

He's an everyday earthworm turned intergalactic hero. See them in Earthworm Jim.

Romantic, impulsive, and captivated by the joys of life, Natasha Rostova is on the messy path of growing up. See them in War and Peace.

Charming and enigmatic, Amy Dunne takes her love for puzzles to a cunning new level. See them in Gone Girl.

Stan Marsh is a fourth grader who is the ladies man of his classroom. See them in South Park.

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.