Because you like Gilderoy Lockhart in Harry Potter Series

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.

A fight every now and then makes Dante's life a little more interesting. See them in Devil May Cry.

Peppy and optimistic, Joy is totally lost when it comes to dealing with Sadness. See them in Inside Out.

The irrepressible Lucy Ricardo has never met a challenge she couldn't scheme her way into or out of. See them in I Love Lucy.

They say Babydoll has lost her mind. But why does it seem like she's the only sane one in her institution? See them in Sucker Punch.

Kathy is a natural caretaker who strives to find hope in even the darkest of times. See them in Never Let Me Go.

A believer in the philosophy of Nietzsche, Dwayne Hoover has taken a vow of silence until he becomes a test pilot for the Air Force. See them in Little Miss Sunshine.

Charlie Kelmeckis is a wallflower who's starting to blossom into something more. See them in The Perks of Being a Wallflower.

Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.

Will Herondale is an emotionally distant bad boy with a secret. See them in Clockwork Angel .

Adults call him troubled and kids call him crazy, but Donnie Darko is too busy following the instructions of a giant bunny rabbit to care. See them in Donnie Darko.