Isao Yamagata was a Japanese film actor. In 1942, Yamagata and So Yamamura formed the Bunkaza Theatre Company. In 1949 he made his film debut with Kirareya Senta. Yamagata became famous for his role in 1953 film Gate of Hell. He became a character actor and often played villainous roles. In 1973, Yamagata landed main role on the TV jidaigeki Kenkaku Shōbai.

Sō Yamamura , sometimes credited as Satoshi Yamamura, was a Japanese actor and film director.