Because you like Emmett Brown in Back to the Future

Nicky Nichols just wants to settle down with a nice girl, but being in prison is making that a little difficult. See them in Orange Is The New Black.

Jack Frost would rather crack a joke or throw a snowball than take anything seriously. See them in Rise of the Guardians.

Father to a murdered son and husband to a murdered wife, Maximus Decimus Meridius will have his vengeance. See them in Gladiator.

Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.

Maya Lambert is an obsessive intelligence officer with tunnel vision leading toward Osama bin Laden. See them in Zero Dark Thirty.

Howl puts the "tortured" in tortured artist. He just wants to be recognized for his work, but no one wants to trust a boy that sorta looks like a bird. See them in Howl's Moving Castle.

His elfin self-confidence can border on pretension, but Legolas Greenleaf is a fearsome fighter and a loyal friend. See them in The Lord of the Rings.

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

John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.

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

In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.