Because you like Isabelle de Merteuil in Dangerous Liaisons

There is never a dull moment with Jim Moriarty: expect booze and sing alongs in between all of the homicide. See them in Sherlock.

Beautiful and artistic, Aria Montgomery follows her own path. See them in Pretty Little Liars.

A Hollywood starlet with a vindictive streak, Madison Montgomery is one witch that you shouldn't cross. See them in American Horror Story.

Wanting more out of life, Pam Beesly has a job she isn't crazy about and is engaged to a guy she's not sure is "The One." See them in The Office.

If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.

It turns out the girl of your dreams just might have dreams of her own. See them in (500) Days of Summer.

Alyssa Foley is a blunt and crass teenage runaway. See them in The End of the F World.

Manipulative, gorgeous, and sharp as a tack, Blair Waldorf is a classic product of the Upper East Side. See them in Gossip Girl.

Effy Stonem is cool and collected with a wry smile on her face and a cigarette between her lips. See them in Skins.

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

When you live your life in public, like Mima Kirigoe, it's hard to know who you really are. See them in Perfect Blue.