Who Is the Informer?

Yōsuke Natsuki

Keiichi Sudo

Yumi Shirakawa

Mineko

Makoto Satō

Detective A

Chikage Ougi

Akemi

Michino Yokoyama

Rumiko

Hideyo Amamoto

Nakao

Kumi Mizuno

Kyoko

Eiko Miyoshi

Tassel

Chieko Nakakita

Sachiko

Ayumi Sonoda

Lady A of the cabaret "Tommy"

Katsue Miyakoya

Chiyo from the cabaret "Tommy"

Senkichi Ōmura

Nishimatsu

Fuyuki Murakami

Detective B

Michirō Minami

Radio Producer

Kichijirō Ueda

Shibata

Natsuko Kahara

Tamae

Yoshibumi Tajima

Komakichi

Shin Kitajima

Sakakibara

Masafumi Takechi

Piece 3

Yaeko Izumo

Rumiko's Mother

Keiji Sakakida

Rumiko's Father

Hideo Shibuya

Akiyoshi

Jun Fujio

Hoshino

Toshiko Nakano

nurse

Yasuhisa Tsutsumi

Radio producer's assistant

Gorô Sakurai

Detective Yamauchi

Kamayuki Tsubono

Detective C

Etsuo Saijo

Detective D

Akira Sera

doctor

Kenzo Echigo

Police Officer

Minoru Itō

Journalist 1

Saburô Kadowaki

Journalist 2

Koji Kamimura

Journalist 3

Yutaka Sada

Department store clerk

Ren Imaizumi

Katsuji Ichikawa

Rumi Konishi

Tadashi Okabe

Shuichi Hosokawa

Toshihiko Furuta

Okayu Taka

Eisuke Nakanishi

Masaaki Tachibana

Toshitsugu Suzuki

Hisatora Kumagai

Director

Kengo Furusawa

Assistant Director

Takao Nakamura

Assistant Director

Kunihiko Watanabe

Assistant Director

Heikichi Tsushima

Assistant Director

Hajime Takaiwa

Screenplay

Hisatora Kumagai

Screenplay

Tomoyuki Tanaka

Production Director

Hidehisa Suga

Production Manager

Minoru Shimizu

Accountant

Kazuo Yamada

Camera Operator

Yoji Takagi

Camera Department Production Assistant