It just occurred to me that Anna from the TV series "V" would make a great roleplaying template for the Stormblade leader Annah, who is also a villainous diplomancer.
I was already trying to play her like this when I ran a scene with her in the past.
I hope this suggestion is helpful. I'm not a natural role-player, so I need to use every shortcut cheat I can get to pull off my roleplaying when I run a game.