How many movies have Bob Anderson and Dan Castellaneta collaborated on?

They have worked on 1 movie together! Their first movie together was The Simpsons: Treehouse of Horror (2003) and was their highest rated movie together. They have not worked together since The Simpsons: Treehouse of Horror (2003).

Crew
Director
Role
Homer Simpson / Willie / Grampa Simpson/ Kodos/ Various (voice)