Yukio Mishima (nee Kimitake Hiraoka, 1925–1970) was a Japanese playwright, poet, actor, film director, internationally famous and considered one of the most important Japanese authors of the 20th century, his avant-garde work displayed a blending of modern and traditional aesthetics that broke cultural boundaries, with a focus on sexuality, death, and political change. SF Bay Times Article
Find his plaque on 19th St between Castro and Collingwood