Ushio Amagatsu (天児 牛大, Amagatsu Ushio; 31 December 1949 – 25 March 2024) was a Japanese choreographer known as the leader of the Butoh dance group Sankai Juku, which he founded in 1975.
Source: “Ushio Amagatsu”, English Wikipedia (CC BY-SA 4.0), excerpt