The Riddler (Edward Nigma) is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman. The character made his first appearance in Detective Comics #140 (October, 1948) and was created by Bill Finger and Dick Sprang.
Depicted as a Gotham City criminal mastermind, the Riddler takes delight in incorporating riddles and puzzles into his plots, and leaves them as clues for the authorities and Batman to solve. The character is one of Batman's most enduring enemies and belongs to the collective of adversaries that make up Batman's rogues gallery.
The character has been featured in various media adaptations, such as feature films, television series and video games. For example, the Riddler has been voiced by John Glover in the DC animated universe, Robert Englund in The Batman, and Wally Wingert in the Batman: Arkham series and Batman: Return of the Caped Crusaders. His live-action portrayals include Frank Gorshin and John Astin in the 1960s Batman television series, Jim Carrey in the 1995 film Batman Forever, and Cory Michael Smith in the television show Gotham. In 2009, The Riddler was ranked as IGN's 59th Greatest Comic Book Villain of All Time.