How many movies have Kazuo Ōbayashi and Tokio Oki acted in together?

They have worked on 9 movies together! Their first movie together was Bara daimyo (1960) 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 action films together.