Because you like Peter Pevensie in The Chronicles of Narnia

After having his mind altered after a bad breakup, Joel Barish is not convinced that ignorance is bliss. See them in Eternal Sunshine of the Spotless Mind.

Ianto Jones' withdrawn nature conceals his emotional pain. See them in Torchwood.

In his transformation from hardened convict to moral paragon, Jean Valjean is the kind of man we should all aspire to be. See them in Les Miserables.

Yippee-ki-yay! John McClane doesn't go down without a fight. See them in Die Hard.

Tony Stark's interests include cocktails, beautiful women, particle physics, and saving the world. See them in Marvel Cinematic Universe.

Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

It's impossible to say whether Winifred Burkle is cuter than she is smart, or vice versa. See them in Angel.

Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.

When push comes to shove, the usually overly cautious Luigi has the heart of a hero. See them in Super Mario Bros..

Cooper says he used to look up at the sky and wonder at our place in the stars, but now he looks down and worry about our place in the dirt. See them in Interstellar.

Po is a clumsy, friendly panda who likes to take it easy. But now he's expected to save the world? See them in Kung Fu Panda.