Because you like Doogie Howser in Doogie Howser, M.D.

A talented OBGYN, Addison Montgomery is trying to figure out the whole love and marriage thing. See them in Grey's Anatomy.

There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.

Li Shang will make a man out of you—even if you're a girl. See them in Mulan.

Merry Brandybuck is a troublemaking hobbit with a brave streak that some might call foolhardy. See them in The Lord of the Rings.

Jasper Jordan is trying his best to make it through the night. See them in The 100.

If this slick ad man doesn't like the conversation, he changes it—while drinking and smoking. See them in Mad Men.

More of a sex symbol than a crime-stopper, the original Silk Spectre has now become the ultimate superhero stage mom. See them in Watchmen.

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

Beth March is the glue that holds her family together. See them in Little Women.

Veronica Mars is a sarcastic private eye whose biggest mission is surviving high school. See them in Veronica Mars.

Combining an innocent face with an insatiable bloodlust, Eli recruits friends to join the vampire way of life. See them in Let the Right One In.

Jim Stark is a teen torn apart by what the world asks of him. See them in Rebel Without A Cause.