Because you like Kara "Starbuck" Thrace in Battlestar Galactica
Jeff Winger thinks he's too cool for school, which is a problem because he just enrolled in community college. See them in Community.
A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.
Strong-willed Norah Silverberg isn't willing to be the goody bag at anyone's pity party. See them in Nick and Norah's Infinite Playlist.
Dominic Toretto lives his life "a quarter mile at a time", and he burns through those miles faster than anyone. See them in The Fast and the Furious.
Whether it's a fire or a pit of lions, there's almost no predicament that Violet Baudelaire can't get her and her siblings out of. See them in Lemony Snicket's A Series of Unfortunate Events.
Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.
Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.
Ron Burgundy is a news anchor who signs off with "Stay classy, San Diego" or whatever his teleprompter says. Bonus: he plays the jazz flute. See them in Anchorman: The Legend of Ron Burgundy.
As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.
Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.
Jessica Rabbit isn't bad. She's just drawn that way. See them in Who Framed Roger Rabbit.