How many movies have Shintarō Katsu and Sumao Ishihara acted in together?

They have worked on 17 movies together! Their first movie together was The Ghost Cat of Ouma Crossing (1954) while their highest rated movie together was Lone Wolf and Cub: Sword of Vengeance (1972). They have not worked together since Lone Wolf and Cub: Sword of Vengeance (1972). They are most known for their drama films together.