Because you like Mary Richards in The Mary Tyler Moore Show

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.

C is for cookie, and that's more than good enough for him. See them in Sesame Street.

Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.

Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.

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

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

A suave proprietor of an upscale nightclub and gambling den, Rick Blaine is dealing with World War II and a broken heart. See them in Casablanca.

The White Queen been treated horribly, but the day of her victory is almost near. See them in Alice in Wonderland.

Not only will Emmett Brown's time-saving gadgets help you travel with ease, his tinkering on your car will help you get wherever you need to go. Fast. See them in Back to the Future.

Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.

Driven yet empathetic, Emily Prentiss brings humanity to the pursuit of inhuman killers. See them in Criminal Minds.

Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.