How many movies have Don Messick and Hal Smith acted in together?

They have worked on 7 movies together! Their first movie together was Hey There, It's Yogi Bear! (1964) while their highest rated movie together was Scooby-Doo's Original Mysteries (2000). They have not worked together since Scooby-Doo! and the Robots (2011). They are most known for their animation films together.