How many movies have Katsuyoshi Baba and Shintarō Katsu acted in together?

They have worked on 4 movies together! Their first movie together was The Tale of Zatoichi Continues (1962) while their highest rated movie together was Lone Wolf and Cub: Baby Cart to Hades (1972). They have not worked together since Lone Wolf and Cub: Baby Cart to Hades (1972).