How many movies have Takuzō Kawatani and Tetsuo Ashida acted in together?

They have worked on 6 movies together! Their first movie together was Yakuza on Foot (1969) while their highest rated movie together was Red Peony Gambler: Here to Kill You (1971). They have not worked together since Yakuza Graveyard (1976). They are most known for their crime films together.