Because you like Martha Jones in Doctor Who

Both intelligent and empathetic, Remus Lupin is worn down by the weight of a secret. See them in Harry Potter Series.

Introspective Theodore Twombly would rather observe life than participate in it. See them in Her.

A responsible kid, Hugo Cabret is still capable of flights of fancy. See them in Hugo.

Effortlessly sexy, calm, and collected, Eric Northman is equally at home ripping off heads and flirting with waitresses. See them in True Blood.

Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.

A malevolent dark wizard, Voldemort is so fearsome that he's known primarily as "He Who Must Not Be Named." See them in Harry Potter Series.

It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.

On the football field, Tim Riggins has it together. But off the field, he sports bloodshot eyes and broken hearts. See them in Friday Night Lights (TV).

Part of an elite team of investigators, Abby Sciuto is the happiest Goth to ever work in law enforcement. See them in NCIS.

Some say to survive in Underland you need to be as mad as a hatter–which, luckily, he is. See them in Alice in Wonderland.

If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.