Because you like Izzie Stevens in Grey's Anatomy

A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.

Short on book smarts but long on compassion, this high school football player secretly has a soulful side. See them in Glee.

Summer Roberts is privileged and preppy but also surprisingly open-minded and fiercely loyal. See them in The O.C..

A self-proclaimed diva, Mercedes Jones is on the hunt for a stage worthy of her talents. See them in Glee.

Logan Huntzberger is a daredevil, romantic, and heir to a media empire. See them in Gilmore Girls.

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

Shawn Hunter may be a bit of a rebellious bad boy, but he has a heart that's pure gold. See them in Boy Meets World.

Kim Kelly is a high school bully who's normally in a bad mood. But there's a softer side to her. See them in Freaks and Geeks.

Caleb Rivers is a bad boy with a good reason for acting out. See them in Pretty Little Liars.

Serena van der Woodsen is a wild child. Too wild, her friends and family might argue. See them in Gossip Girl.

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