Because you like Sookie Stackhouse in True Blood
Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.
Although Jareth seems like he's just a harmless romantic, his powers make him a formidable foe. See them in Labyrinth.
Ruling with an iron fist, Pablo owns the drug trade and is bathing in the fame and wealth that the cocaine trade in Columbia offers. See them in Narcos.
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.
Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.
Samwell Tarly is a scholar, not a fighter. But that's not good for an aspiring member of the Night's Watch. See them in Game of Thrones.
A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.
Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.
Emily Fields has been very guarded, careful of whom she trusts and reveals her secrets to. See them in Pretty Little Liars.
Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.
Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.
This suave con-man doesn't just want to become rich. Danny Ocean wants to rip off the guy who stole his wife in the biggest Vegas con. See them in Ocean's Eleven.