William John Scott was an American voice actor, writer and producer for animated cartoons, primarily associated with Jay Ward and UPA, as well as one of the founding members of ASIFA-Hollywood. He is probably best known as the head writer, co-producer and the voice of several characters from the popular programs Rocky and His Friends and The Bullwinkle Show.

Hoppity Hooper is an American animated television series produced by Jay Ward, and sponsored by General Mills, originally broadcast on ABC from September 12, 1964, until 1967. The series was produced in Hollywood by Jay Ward and Bill Scott, with animation done in Mexico City by Gamma Productions.