Kōmei Minami

Akira Naruse / Gorô Katayama - Private Detective

Hiroki Hoshino

Taisuke Kurosu, a jeweler

Mariko Aoyama

Ayako, Kurosu's second wife

Hosaku Yoshida

Kiboku Rin - a mysterious manager

​Aina​ Sakuraba

Jun'ichi Norita - a young man

Masujirô Takagi

Yoshizô - old servant of Akiko

Kyoko Mizuki

A deaf girl

Tsuruko Segawa

Akiko Kitamura, a daughter of Kurosu's former wife

Kayoko Natsume

Maid of a man in black

Kunijirô Fujiwara

Shibayama - Kurosu's secretary