The Riddler is a fictional character appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman. Created by Bill Finger and Dick Sprang, the character first appeared in Detective Comics #140 (October 1948). The Riddler is a criminal mastermind who uses riddles and puzzles as his calling card, leaving clues for Batman to solve in order to apprehend him.
The Riddler has been portrayed in various media, including television, film, and video games. The character has been played by Frank Gorshin, John Astin, Jim Carrey, and Paul Dano. In the comics, the Riddler is often depicted as a brilliant strategist and tactician, using his intellect to outwit Batman and commit crimes. He is also known for his eccentric personality and flamboyant costumes.