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Tetsuo Hasegawa
長谷川哲夫
Born	15 July 1938 (1938-07-15) Shimoniikawa District, Toyama, Japan
Died	1 January 2023 (2023-02) (aged 84) Tokyo, Japan
Occupation	Actor

Tetsuo Hasegawa (Japanese: 長谷川哲夫; 15 July 1938 – 1 January 2023) was a Japanese actor, mainly active on television.

Born in Shimoniikawa District, Toyama, Hasegawa studied acting at the Haiyuza Theatre School.^[1] Specialized in character roles in television period dramas, he made his professional debut in 1962, in the NHK television film Gōsutoppu monogatari.^[2]

Hasegawa was well-known for playing Tokugawa Tsunayoshi for 18 years in the long-running TV-series Mito Kōmon, and for being a regular in the TV-series Kinpachi-sensei, in which he played the Principal.^[1][2] His last appearance was in November 2022, in the stage play Sogetsu Hall de Aimasho!.^[1][2]

Hasegawa died of the consequences of an internal organ disorder on 1 January 2023, at the age of 84.^[2]

• Tetsuo Hasegawa at IMDb