How many movies have Rich Beall and William R. Moses acted in together?

They have worked on 4 movies together! Their first movie together was Perry Mason: The Case of the Poisoned Pen (1990) while their highest rated movie together was Perry Mason: The Case of the Killer Kiss (1993). They have not worked together since Perry Mason: The Case of the Killer Kiss (1993). They are most known for their crime films together.