John Glover is the voice of Edward Nygma, the crafty and conniving Riddler of Batman: The Animated Series.
John Glover is a successful stage actor who had made a decent living for years as one of the faces in movies & television who was recognizable as "that guy." However, he acheived notoriety in his ongoing and acclaimed role on "Smallville." Glover plays Lionel Luthor, the crooked millionaire industrialist who teaches his son Lex the harsh life lessons that will eventually turn the boy into the world's most dangerous criminal. He has also appeared as Dr. Woodrue in the forgettable "Batman & Robin" film, and played an eccentric parody of Donald Trump in "Gremlins 2: The New Batch."