Tadao Takashima

Character: Dr. Yuzo Kawaji

Nick Adams

Character: Dr. James Bowen

Kumi Mizuno

Character: Dr. Sueko Togami

Yoshio Tsuchiya

Character: Daigo Kawai

Koji Furuhata

Character: Frankenstein

Jun Tazaki

Character: Hideo Nishi, Director of the Okayama Prefectural Police

Susumu Fujita

Character: Osaka Prefectural Police Chief

Takashi Shimura

Character: Hiroshima Army Hospital doctor

Nobuo Nakamura

Character: Dr. Suga

Kenji Sahara

Character: Tadokoro, Bowen's assistant

Hisaya Itō

Character: Osaka Police Sergeant

Yoshibumi Tajima

Character: Murata, Japanese Imperial Navy submarine captain

Kōzō Nomura

Character: Newspaper Reporter

Haruya Katō

Character: TTV Director

Ikio Sawamura

Character: Housekeeper

Yoshio Kosugi

Character: JSDF Executive

Keiko Sawai

Character: Tsuruko Toida

Noriko Takahashi

Character: Girl in Shirane hut

Peter Mann

Character: Dr. Liesendorf

Ren Yamamoto

Character: Motoki

Yutaka Sada

Character: Hospital Secretary

Kenzō Tabu

Character: Newspaper Employee

Shigeki Ishida

Character: University Professor

Haruo Nakajima

Character: Baragon / JSDF Soldier

Yutaka Nakayama

Character: TTV Lighting man

Senkichi Ōmura

Character: TTV Lighting man

Nadao Kirino

Character: Okabe policeman

Shin Ōtomo

Character: Sugiyama policeman

Shōichi Hirose

Character: Tunnel Worker

Toshihiko Furuta

Character: Farmer

Hideo Shibuya

Character: Reporter

Tadashi Okabe

Character: Sarcastic Reporter

Hideaki Nitani

Character: Hospital Official (uncredited)

Saburô Iketani

Character: Reporter (uncredited)

Kenichiro Kawaji

Character: Young Frankenstein

Kazuo Kumakura

Character: Dr. Lisendorf (voice)

Gorō Naya

Character: Dr. Bowen (voice)