How many movies have Akira Sasanuma and Toshihiko Seki acted in together?

They have worked on 3 movies together! Their first movie together was Kamen Rider Den-O: Final Trilogy Special Edition (2008) while their highest rated movie together was OOO, Den-O, All Riders: Let's Go Kamen Riders (2011). They have not worked together since OOO, Den-O, All Riders: Let's Go Kamen Riders (2011). They are most known for their science fiction films together.