How many movies have Frank Welker and Larry Hama acted in together?

They have worked on 2 movies together! Their first movie together was G.I. Joe: The Revenge of Cobra (1984) while their highest rated movie together was G.I. Joe: Arise, Serpentor, Arise! (1986). They have not worked together since G.I. Joe: Arise, Serpentor, Arise! (1986).