So Yamamura (山村聰, Yamamura So, 24 February 1910 – 26 May 2000) was a Japanese actor and film director. He appeared in more than 110 films between 1947 and 1991, and directed four films. He was also known by the name Satoshi Yamamura, while his actual birth name is Koga Hirosada. In the US, he is well known for his portrayals of Japanese Admiral Isoroku Yamamoto of the Combined Fleet, in Tora! Tora! Tora!, and of Mr. Sakamoto, the CEO of Assan Motors in Gung Ho.

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So Yamamura was a celebrated Japanese actor and film director who appeared in over 110 films spanning from the 1940s to the 1990s.
He is renowned for his notable performances in cinematic classics like Tokyo Story and The Human Condition, as well as major international releases like Tora! Tora! Tora!.
He collaborated with prominent directors of the golden age of Japanese cinema, including Yasujiro Ozu and Mikio Naruse.