Because you like Steve Stifler in American Pie

Barbara Kean is loving, selfless, and caring. But, she's less stable than she'd like to admit. See them in Gotham.

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

Bad-ass Rayne has sworn her life to finding and destroying her vampire dad, Kagan, and killing as many other vampires as she can in the bargain. See them in BloodRayne .

As Marlena Rosenbluth is finding out, confidence in the limelight doesn't always translate to power at home. See them in Water for Elephants.

Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.

Norma Bates may look like a harmless housewife, but don't let that fool you. See them in Bates Motel.

Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.

Gruff and sarcastic, Detective Harry Dresden use unconventional ways to track down perps, including using magic and the supernatural. See them in The Dresden Files.

Ash Williams is a houseware clerk at S-Mart and the Chosen One. See them in The Evil Dead.

Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.

Flexibility is more than Helen Parr's superpower. It's a key tenet of her personality that allows her to be both firm and understanding. See them in The Incredibles.