Because you like Geordi La Forge in Star Trek: The Next Generation

Spencer Reid's super-smarts helps catch killers, and his social awkwardness endears co-workers. See them in Criminal Minds.

Columbus can't trust anyone. The first girl he let into his life tried to eat him. See them in Zombieland .

A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.

Buddy Pine is an unhinged superfan of superheroes using technology to take down his idols. See them in The Incredibles.

The Grinch's heart is just too small to appreciate Christmas. See them in Dr. Seuss' How the Grinch Stole Christmas.

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.

Kevin Khatchadourian is a disturbed, affect-less teen on a dark path. See them in We Need to Talk About Kevin.

Closing off her emotions makes Lightning a great fighter, but at what personal cost? See them in Final Fantasy Series.

This metal-bending mutant may be misaligned with the genetically normal people of the world, but Magneto's got class for days. See them in X-Men Series.

Most kids hope for a car for their 16th birthday, but Mia Thermopolis' present is a country to rule. See them in The Princess Diaries.

Selfishly taking her father’s place to fight in the Imperial Army, Hua Mulan risks treason if they find out she isn’t who she says she is. See them in Mulan.