Because you like Derek Shepherd in Grey's Anatomy
Meat Boy tenaciously throws himself into danger, and when he fails, he immediately gets back up and tries again. See them in Super Meat Boy.
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.
Leonidas is not the kind of king who merely gives orders; rather, he's out on the battlefield fighting alongside his men. See them in 300.
The only thing Albert Wesker cares about is turning himself into a God. See them in Resident Evil Series.
Ellen Ripley defines the word "badass." When she's not leading her crew on an interstellar voyage, she's slaying terrifying creatures. See them in Alien.
Aldous Snow is a rock star who plays hard and parties harder. See them in Get Him to the Greek.
There are certain souls the surprisingly sensitive Death would rather not reap. See them in The Book Thief.
Fighting for a future without fear? Yeah, Chris Redfield believes it is worth it. See them in Resident Evil Series.
Trying to get through school without being a burden to anyone, Tohru Honda stays cheerful despite her difficulties. See them in Fruits Basket.
A good-natured and academically minded superhero, Dan Dreiberg can still get his hands dirty in a fight. See them in Watchmen.
He's an eccentric pirate making it up as he goes along. He's Jack Sparrow, savvy? See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Is there more to life than being really, really, ridiculously good looking? Derek Zoolander thinks not. See them in Zoolander.