Because you like Peter Brady in The Brady Bunch

Gilderoy Lockhart's biggest idol is himself. See them in Harry Potter Series.

A working class janitor with a world-class mind, Will Hunting is cocky, brash, and combative about his future. See them in Good Will Hunting.

Morpheus is wise enough to see into the bones of the world. See them in The Matrix.

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

A sarcastic and nosy tomboy, Stephanie Tanner is understandably not crazy about being the middle child. See them in Full House.

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

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

Ted is a cursing, smoking, drinking teddy bear who's anything but cuddly. See them in Ted.

Wanderer is a Soul, a parasite sent into a host to take over their body, extracting information from them and colonizing their species. See them in The Host.

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.

Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.