The only thing we know for sure about Jokers real identity is that he really has a lot of them. T. When The Joker returns to Gotham City to destroy former Batman .\rbr\rbrThe only thing we know for sure about Jokers real identity is that he really has a lot of them. T.\rbr\rbrWhen The Joker returns to Gotham City to destroy former Batman Bruce Wayne, a new Dark Knight rescues his mentor and discovers the truth about a .\rbr\rbrFor more DC Comics, subscribe NOW: When The Joker returns to Gotham City to destroy former Batman Bruce Wayne, a new Dark .