南光明

Akira Naruse / Gorô Katayama - Private Detective

Hiroki Hoshino

Taisuke Kurosu, a jeweler

青山万里子

Ayako, Kurosu's second wife

吉田豊作

Kiboku Rin - a mysterious manager

Kaoru Wakabayashi

Jun'ichi Norita - a young man

Masujirô Takagi

Yoshizô - old servant of Akiko