Because you like GLaDOS in Portal Series

You wouldn't know it by looking at her, but beneath Sheila Jackson's sweet, motherly exterior lies a sex addict. See them in Shameless.

You don't teach a class called "How To Get Away With Murder" without knowing a thing or two about getting away with things. See them in How to Get Away with Murder.

While Alan Garner is loyal to his new friends, his efforts to help them often do more harm than good. See them in The Hangover.

With the ocean breeze behind him and the open seas ahead of him, Jack Dawson feels as if he is king of the world. See them in Titanic.

Accessing more than 10 percent of your brain can do strange things to anyone, and Lucy is Exhibit A. See them in Lucy.

Lux Lisbon's flirtatious manner attracts a lot of male attention. She relishes the power that her sexuality grants her. See them in The Virgin Suicides.

Though she can seamlessly flit between glamorous identities, Sydney Prosser is more vulnerable than she pretends to be. See them in American Hustle.

Amy March blends her naturally artistic spirit with a sense of practicality. See them in Little Women.

Andrea Sachs' boss is not happy unless everyone around her is panicked, nauseous or suicidal. See them in The Devil Wears Prada.

His name is Olaf, he's a snowman, and he likes warm hugs. See them in Frozen.

Hanna Marin is a determined girl defined by her ability to transform herself. See them in Pretty Little Liars.

Good-natured, sensitive, and introspective, Mason is on a lifelong path to finding himself. See them in Boyhood.