How many movies have Frank Welker and Joe Gall collaborated on?

They have worked on 7 movies together! Their first movie together was Tiny Toon Adventures: How I Spent My Vacation (1992) while their highest rated movie together was Scooby-Doo! and the Goblin King (2008). They have not worked together since Scooby-Doo! and the Goblin King (2008). They are most known for their animation films together.