8. Yara Greyjoy
Bronn, the Hound, the Kingslayer, the Mountain – sorry, fellas, but no one on this show looks like they'd kill you where you stand and walk away whistling more than Gemma Whelan's Yara Greyjoy. Since the Ironborn value skilled killers above all else, she's been able to fight her way through this society's otherwise unbreakable glass ceiling. It'd almost be admirable, if she weren't such a sarcastic dick about it all the time.