Because you like John Blutarsky in Animal House

Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.

Donatello might come off as a tad nerdy, but don't let his geekiness fool you. He's a trained ninja and a skilled fighter. See them in Teenage Mutant Ninja Turtles.

With her mastery of martial arts and her prodigious building skills, Wyldstyle projects an air of invincibility. But she's not bulletproof. See them in The Lego Movie.

Lloyd Dobler is a kickboxer wearing his heart on his sleeve who would do anything for the woman he loves. See them in Say Anything.

Samantha Jones is a try-sexual who'll try anything once. See them in Sex and the City.

Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.

Chuckie Finster is a baby afraid of everything from clowns to closets, unless his best friend's by his side. See them in Rugrats.

Jack Bauer is a terrorist fighter who is scared of nothing and no one. The clock is ticking! See them in 24.

Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.

Tom Haverford is set on being a world-renowned entrepreneur who dates models. Problem is, he's stuck in Indiana with a lazy business partner. See them in Parks and Recreation.

Blunt but anxious, Gretchen Ross bonds most easily with those who have lived tough lives like she has. See them in Donnie Darko.

Haley Dunphy's interests include shopping, dating, and avoiding homework at all costs. See them in Modern Family.