How many movies have Barry Gordon and James Avery acted in together?

They have worked on 4 movies together! Their first movie together was Teenage Mutant Ninja Turtles: Heroes in a Halfshell (1988) while their highest rated movie together was Teenage Mutant Ninja Turtles: The Epic Begins (1988). They have not worked together since Teenage Mutant Ninja Turtles: The Turtles' Awesome Easter (1992). They are most known for their animation films together.