Teruo Sakamaki was a Japanese actor best known for being a lookalike of the actor Shintaro Katsu. While working as a restautant owner in Shinjuku, Sakamaki appeared in a star lookalike show where he caught the attention of the host Eiichi Ono, who ran a talent agency. In 1969, he starred in a pink film parody of Zatoichi titled "Kōshoku bōzu shijūhatte kiri". Due to Zatoichi's popularity in Taiwan at the time, Sakamaki (under the alias "Sing Lung") then went on to star in several early-70s Taiwanese productions where he reprised his role as a Zatoichi lookalike.