How many movies have Kappei Yamaguchi and Yasuhiro Takato acted in together?

They have worked on 4 movies together! Their first movie together was Inferious Interplanetary War Chronicle - Condition Green (1991) while their highest rated movie together was One Piece: Strong World (2009). They have not worked together since One Piece Film Red (2022). They are most known for their animation films together.