11. Tywin Lannister
Combining the malevolent mastermind vibe of the Emperor with the Oedipal menace of Darth Vader, Tywin was the dark father of the Lannister clan. And if his merciless treatment of his children had any redeeming quality whatsoever, it's that he was even more Machiavellian toward their enemies. Do the ends justify the means? Perhaps they do if they help create a character this coldly compelling. But his son Tyrion didn't see it that way, and paid him back for a lifetime of abuse with a crossbow to the gut.