Comic book superheroes are some of the most popular characters in fiction. Batman, Superman, the Avengers, the X-Men and the Fantastic Four are just some of the kind of examples we’re referring to when we say that. But, of course, superheroes wouldn’t be what they are without an antithesis – and they come in the form of supervillains.Supervillains are actually some of the most interesting and complex characters going. Their motives for being evil, their aesthetic qualities, and their powers and abilities vary to the extent that no two are truly the same – and some are every bit as popular as their heroic counterparts as a result.They’ve transcended the comic book genre, along with the heroes they antagonise, to appear in movies, television shows, video games and various other media platforms. But exactly how much do you know about them? We think there are some facts about the best supervillains out there that might just surprise you. Here are ten things you didn’t know about some of your favourite superhero’s villains.