Because you like Alucard in Castlevania
Darcy Lewis is a razor-sharp scientist studying things that science can't explain. See them in Thor.
Claire Standish is a popular, perfect princess who's deeper than she seems. See them in The Breakfast Club.
The Grinch's heart is just too small to appreciate Christmas. See them in Dr. Seuss' How the Grinch Stole Christmas.
An exuberant prankster, Naruto Uzumaki craves acknowledgement of any kind. See them in Naruto.
Miss Havisham is the creepiest old rich lady in town. See them in Great Expectations.
Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.
Introspective Theodore Twombly would rather observe life than participate in it. See them in Her.
In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.
A doting grandfather, Edwin Hoover also has a heroin addiction and a penchant for swearing. See them in Little Miss Sunshine.
Pro: Johan Liebert is handsome and charming. Con: he's also a sociopathic killer. See them in Monster (TV Show).