9. Tywin Lannister
Combining the malevolent mastermind vibe of the Emperor with the Oedipal menace of Darth Vader, Tywin is the dark father of the Lannister clan. And if his merciless treatment of his children has any redeeming quality whatsoever, it's that he's even more Machiavellian toward their enemies. Do the ends justify the means? They do if they help create a character this coldly compelling.