It is arguable that the phenomenon of cosplay is the greatest invention in the history of mankind. Let us explain. You take a handful of generously endowed females with an insatiable penchant for the nerdy activities that men generally have to keep secret, you add the perpetually skimpy outfits of comic book babes, and you are left with ridiculously hot she-geeks who aren't wearing very much. What's more, these girls don't give a damn about the living room full of original Star Wars action figures you spend hours dusting. Still, there's no point us trying to convince you. Let the visual evidence speak for itself as we bring you the twenty hottest cosplay supervillains we could lay our hands on.