The Riddler

Edward Nigma, E. Nigma, was obsessed with riddles and puzzles as a kid and became the Riddler as an adult. He's a smartass and really manipulative, has this smooth talking and quirkiness and a giant ego. He likes to play tricks on people, leaving clues wherever he goes for others to follow and solve. I believe that at some point he wasn't that interested in committing crimes as he was in showing and proving everyone that he was smarter than me. Well, that's clearly impossible. Because I'm Batman!

Eventually, he disappeared for a while and then returned and then he went away again and so on... At some point he even found out my secret identity! That's because he used Ra's Al Ghul's Lazarus pit and got some sort of enlightening. But then we agreed on him telling no one who I was. I basically told him that if he told anyone who I was, I would tell the Assassin's League that he had used their Lazarus Pit without permission. But then something happened and he got amnesia, and forgot his past life AND my secret identity. So, it's all good.