 Christopher Lloyd as Judge Doom, the cold and power-hungry judge of Toontown District's Superior Court. Lloyd was cast because he previously worked with Zemeckis and Amblin Entertainment in Back to the Future. Lloyd compared his part as Doom to his previous role as the Klingon commander Kruge in Star Trek III: The Search for Spock, both being overly evil characters which he considered being "fun to play". Lloyd avoided blinking his eyes while on camera in order to perfectly portray the character.
