Ihara Tsuyoshi was born on November 6, 1963, in Kokura, Kyushu. He grew up in Osaka, and after graduating high school, he joined JAC (Japan Action Club) which is headed by Shin'ichi Chiba (aka Chiba Shinichi), which is a company of stunt and action actors. He made his debut in 1983 in a stage drama called "The Midnight Party." Since then, he has appeared in many commercials, TV drama, and movies such as "Kochira Hon Ikegami-sho," "Koino Jikan," "Shiawase ni naritai," "Magari kado no kanojyo," "Kowloon de aimasho," and NHK's Taiga drama "Sinsengumi" etc. He continues to be a popular actor starring in both serious and comical roles.