Because you like Ricky Ricardo in I Love Lucy

A vain and arrogant womanizer, Roy Mustang has hidden depths. See them in Fullmetal Alchemist.

The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.

Daria Morgendorffer is so defensive that she actively works to make people dislike her so that she don't feel bad when they do. See them in Daria.

Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.

Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.

Damon Salvatore used to miss being human. Now he can't think of anything more miserable. See them in The Vampire Diaries.

Beca Mitchell fancies herself an edgy loner, but it turns out being part of a group can be aca-amazing. See them in Pitch Perfect.

High school is Hell, so Allison Reynolds spends her time giving herself tattoos with ballpoint pens and shaking dandruff out of her hair. See them in The Breakfast Club.

Socialite-turned-runaway-turned-waitress, Rachel Green is the legendary story of riches to rags, trying to work her way up again with the help of her friends. See them in Friends.

Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.

Jack Frost would rather crack a joke or throw a snowball than take anything seriously. See them in Rise of the Guardians.