Walker Edmiston was an American character actor and voice-over artist. He was the voice of Ludwig von Drake after Paul Frees's retiremen, and was succeeded by Corey Burton shortly afterwards. His other Disney roles included Sir Thornberry in Adventures of the Gummi Bears, a citizen and a thug guard in The Great Mouse Detective, a radio announcer in Dick Tracy and additional voices in the 1988 Disney TV movie Goodbye, Miss 4th of July and Dumbo's Circus. Outside of Disney, his best-known roles include Dishonest John in Beany and Cecil, and Inferno in the original Transformers cartoon.