The Dark Knight Author:Dennis O'Neil Based on the blockbuster Warner Bros. Pictures film starring Christian Bale and Heath Ledger. — Allied with both the police department and the district attorney's office, the vigilante known as Batman continues to bring justice and hope to Gotham City. — But one man dares to mock Batman's mission. A man with a twisted sense of humor... more ». A man whose grotesque smile is reflected on the calling card he leaves at the scene of his crimes: The Joker.« less