How many movies have Ray daSilva and Rodger Bumpass collaborated on?

They have worked on 2 movies together! Their first movie together was Heavy Metal (1981) and was their highest rated movie together. They have not worked together since Doug's 1st Movie (1999).

Doug's 1st Movie (1999)

Crew
Background Designer
Role
Additional Voices (voice)
Crew
Animation

Heavy Metal (1981)

Crew
Animation
Role
Hanover Fiste / Dr. Anrak (voice)