Born in Tokyo, Harada entered the Haiyuza Theatre Company in 1966, launching his screen career with a television role in 1967’s “Tenka no seinen” and a film debut the following year in “Fukushū no uta ga kikoeru.” He rose to prominence through Nikkatsu’s New Action series, notably portraying a yakuza boss’s son in the 1971 cult hit “Stray Cat Rock: Crazy Riders ’71.” Over the ensuing decades he co…