Because you like John Blutarsky in Animal House

Georgina Sparks uses beauty, brains, and power to always get her way. See them in Gossip Girl.

With his good looks and magnetic personality, Will Smith seems destined to be a Hollywood megastar. See them in The Fresh Prince of Bel-Air.

A meek schoolteacher, Mary Margaret Blanchard can't remember her past as a spirited, swashbuckling Snow White. See them in Once Upon a Time.

Topanga Lawrence has been a put-together intellectual since basically the moment she could talk. See them in Boy Meets World.

Samwell Tarly is a scholar, not a fighter. But that's not good for an aspiring member of the Night's Watch. See them in Game of Thrones.

An off-beat dork, John Egbert is funny, inventive, and endlessly optimistic. See them in Homestuck.

Most of the world has been wiped out from The Beast. And when The Beast comes, Cole MacGrath will be ready. See them in inFAMOUS.

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

Burton Guster is a level-headed investigator with a "Super Sniffer" nose. See them in Psych.

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.