How many movies have David Ogden Stiers and Fred Steiner collaborated on?

They have worked on 8 movies together! Their first movie together was Perry Mason: The Case of the Notorious Nun (1986) while their highest rated movie together was Perry Mason: The Case of the Sinister Spirit (1987). They have not worked together since Perry Mason: The Case of the Lady in the Lake (1988). They are most known for their mystery films together.