How many movies have Mary Kay Bergman and Scott Innes acted in together?

They have worked on 4 movies together! Their first movie together was Scooby-Doo on Zombie Island (1998) while their highest rated movie together was Scooby-Doo's Greatest Mysteries (1999). They have not worked together since Scooby-Doo and the Alien Invaders (2000). They are most known for their mystery films together.