Because you like Carlisle Cullen in Twilight

A benevolent madman with a blue box, The Doctor is traveling through time and space to heal the wounds of the universe. See them in Doctor Who.

Steve Stifler is more than just a dude with a hot mom. He's also rude, profane, and obnoxious. See them in American Pie.

John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.

Gruff and efficient, Sam Fisher protects a nation that can never admit he exists. See them in Tom Clancy's Splinter Cell.

Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .

Titus Andromedon will show you the ropes, help you with your problems, and sing at you constantly, whether you like it or not. See them in Unbreakable Kimmy Schmidt.

Cinder has been beaten down by the world, but she's learning that her cyborg abilities are pretty helpful. See them in Cinder .

Jenko was top dog in high school. Now he's bottom of the pack in the police academy. See them in 21 Jump Street.

Convinced that the world is conspiring against him, Tatsuhiro's reconciled himself to his fate as a shut-in. See them in Welcome to the NHK.

Yukiteru is a reclusive observer who would rather watch life go by than participate in it. See them in The Future Diary.

Raz is a 10-year-old boy who mostly stays in his own head, which makes sense since that's where he is strongest. See them in Psychonauts.