The title says it all. Evil AUs: from the XI Grimdark AU, messed with by the Yin Yang Yoyos, or just a general AU that made this guy into a prick. Or, indeed, maybe if they were originally a jerk, this is an AU to make them a good guy? Well, that's up to you.

Note the nature of your character in the headline. Both AU characters and originals can tag in.