15 Greatest Justice League Villains Of All Time

5. Batman

Right about now, you're probably wondering why the Justice League's leader and all round good guy Batman is featured here. Well, he's clashed with his fellow heroes on more than one occasion over the years, proving in the process that he's more than prepared and capable of taking them down. Hell, he has an entire cache of weapons in the Batcave designed to put the team down should the need ever arise.

A good example of the tension between the Dark Knight and his teammates came in Tower of Babel, a story which saw the Justice League learn that Batman had been keeping files on each of their weaknesses. When those found their way into the hands of Ra's al Ghul, chaos ensued, and the League understandably felt betrayed by his actions. He may only be a human, but Batman really could take down the entire team!