The Riddler, a supervillain in DC Comics and an adversary of the superhero Batman, has been adapted into numerous forms of media, including feature films, television series, and video games.

Edward Nygma / Riddler appears in series set in the DC Animated Universe (DCAU), voiced by John Glover.

[4] To avoid confusion with the Joker, the producers of Batman: The Animated Series chose not to portray this version as Frank Gorshin's cackling trickster from Batman (1966); instead portraying the Riddler as a smooth intellectual who presents genuinely challenging puzzles and dresses in a sedated version of Gorshin's preferred costume for the character.

The series creators also admitted they did not use him often because his character made story plots too long, complex, or bizarre, and they found it difficult to devise the villain's riddles.

[9] Edward Nashton / Enigma / Riddler appears in the Batman: Arkham video game series, voiced by Wally Wingert.