Because you like Ethan Hunt in Mission: Impossible
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.
On the football field, Tim Riggins has it together. But off the field, he sports bloodshot eyes and broken hearts. See them in Friday Night Lights (TV).
She's a survivor of gunshots, of being buried alive, nand of paralysis. And now Beatrix Kiddo is going to make her abusers pay. See them in Kill Bill vol. 1.
The only thing Albert Wesker cares about is turning himself into a God. See them in Resident Evil Series.
Even the smallest person can change the course of the world, if he's brave enough. See them in The Lord of the Rings.
Popular jock Andrew Clark is pretty bizarre. He's just better at hiding it, that's all. See them in The Breakfast Club.
Stoic, cynical, and brilliant, Solid Snake was genetically engineered to be the perfect soldier. See them in Metal Gear Series.
A weather-controlling mutant, Storm doesn't just use her powers to ruin Magneto's day with unexpected showers. She is truly a badass. See them in X-Men Series.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
Lyra Belacqua is prone to getting in trouble, but she's also clever enough to get out of it. Most of the time. See them in The Golden Compass.
Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.
Kara "Starbuck" Thrace will beat you in cards, drink you under the table, then fly circles around you in her fighter plane. See them in Battlestar Galactica.