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]
