Because you like Hoban Washburne in Firefly

Carrie Bradshaw is a sex columnist addicted to expensive shoes, Cosmopolitan martinis, and unavailable men. See them in Sex and the City.

Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.

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

Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.

WALL-E is a quirky little romantic robot cleaning the wasteland known as Earth. See them in WALL-E.

Po is a clumsy, friendly panda who likes to take it easy. But now he's expected to save the world? See them in Kung Fu Panda.

Jenko was top dog in high school. Now he's bottom of the pack in the police academy. See them in 21 Jump Street.

It's easy for Brian O'Conner to fake his way into the world of extreme racing because he's been popping cars since his teenage years. See them in The Fast and the Furious.

Greenpeace? No, this brave eco-terrorist is waging Greenwar. See them in Final Fantasy Series.

Always headed towards adventure, Goku is frequently with a band of loyal companions at his side. See them in Dragon Ball.

Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.