How many movies have Frank Welker and Thomas Chase collaborated on?

They have worked on 6 movies together! Their first movie together was Scooby-Doo! and the Loch Ness Monster (2004) while their highest rated movie together was Scooby-Doo! and the Goblin King (2008). They have not worked together since Scooby-Doo! and the Samurai Sword (2009). They are most known for their comedy films together.