Kaoru Yachigusa was a Japanese actress from Osaka Prefecture. From 1947 to 1957, she was a member of the Takarazuka Revue. After leaving the revue, she was active in film, television, and narration.

The Human Vapor is a 1960 Japanese science fiction film directed by Ishirō Honda, with special effects by Eiji Tsuburaya. Produced and distributed by Toho Co., Ltd., it is the third and final film in the Transforming Human Series. In the film, a scientific experiment goes awry and turns its subject into an unstoppable gaseous mutant who takes advantage of his abilities and commits ruthless crimes.