Because you like Arthur Fonzarelli in Happy Days

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.

Nala is a strong lioness who's loyal to her friends. See them in The Lion King.

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.

Frederick Frankenstein is an eccentric (O.K., maybe a little insane) professor who is excited to be delving into his family's past. See them in Young Frankenstein.

Needles Kane says shut up and bleed. See them in Twisted Metal .

Zeratul is cryptic, mystic, and not to be messed with. See them in StarCraft .

Awkward and anxious. It's not easy being Meg Griffin. See them in Family Guy.

Surly and sarcastic, Manny travels alone and prefers it that way. See them in Ice Age.

Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.