Kei Satō (佐藤 慶, Satō Kei; born December 21, 1928 in Aizuwakamatsu – May 2, 2010) was a Japanese character actor and narrator. He is known for his work with Japanese New Wave director Nagisa Oshima,[1][2] and for several films with Kaneto Shindo, such as Onibaba and Kuroneko. He won the best actor award from Kinema Junpo for the films The Ceremony and Nihon no akuryō.[3] He also worked as a narrator for many documentaries, both on television and film.