Tasumo Hatanaka

Tadao Takashima

Makoto Jinguji

Yôko Fujiyama

Yoshito Nishibe

Yu Fujiki

Admiral Kosumi

Ken Uehara

Journalist/Mu Agent

Kenji Sawara

Inspector

Hiroshi Koizumi

Rimako - Sneezing Model

Akemi Kita

Empress of Mu

Tetsuko Kobayashi

Captain Hachiro Jinguji

Jun Tazaki

Mu Agent #23

Akihiko Hirata

Tome 'Amano' Amanoshome

Yoshibumi Tajima

High Priest of Mu

Hideyo Amamoto

Defense Commander

Susumu Fujita

Government Official

Minoru Takada

High Priest of Mu

Eisei Amamoto

Shindo

Hisaya Ito

Taxi Driver

Ikio Sawamura

Liuetenant Fuji

Hiroshi Hasegawa

Kidnapped Scientist

Nadao Kirino

Government Official

Shin Ôtomo

Warship Captain

Tetsu Nakamura

Government Official

Shin Ōtomo

Sailor

Yutaka Nakayama

Police Officer

Kôji Uno

Memoko - Girl in Susumu's studio

Sadako Amemiya

Man of bus

Yutaka Oka

Military henchman

Yukihiko Gondô

Mu Henchman

Shôichi Hirose

Mu Henchman

Katsumi Tezuka

Rinsaku Ogata

Mu Henchman Beside High Priest of Mu

Yasuzô Ogawa

Hideo Ôtsuka

Police officer

Wataru Ômae

Mu Submarine Crewman

Osman Yusuf

(as Jirô Kumagai)

Takuzō Kumagai

Senior Officer

Shirō Tsuchiya

Toshio Miura

Masayoshi Kawabe

Hiroshi Akitsu

Hideo Shibuya

Keisuke Yamada

Shinjirô Hirota

JSDF member

Bin Furuya

Defense Agency Executive

Kazuo Hinata

Sergeant Goten Kenbutai

Eisaburo Komatsu

Todoroki Takashi, Ken Taketai officersI

Akio Kusama

Mt. Mihara Climber

Keiji Sakakida

Kamayuki Tsubono

Minor Role (uncredited)

Enver Altenbay

One of Mu Imperials (uncredited)

Ralph Jesser

Mu Empire man / Self Defense Forces exec

Haruo Nakajima

Shindo

Hisaya Itô