Atragon

Tadao Takashima

Tasumo Hatanaka

Yōko Fujiyama

Makoto Jinguji

Yū Fujiki

Yoshito Nishibe

Kenji Sahara

Uto Omino

Ken Uehara

Admiral Kosumi

Hiroshi Koizumi

Inspector

Jun Tazaki

Captain Hachiro Jinguji

Yoshifumi Tajima

Tome 'Amano' Amanoshome

Akihiko Hirata

Mu Agent #23

Hideyo Amamoto

High Priest of Mu

Susumu Fujita

Defense Commander

Minoru Takada

Government Official

Hisaya Ito

Shindo

Ikio Sawamura

Taxi Driver

Tetsuko Kobayashi

Empress of Mu

Akemi Kita

Rimako - Sneezing Model

Hiroshi Hasegawa

Liuetenant Fuji

Nadao Kirino

Kidnapped Scientist

Shin Ōtomo

Government Official

Haruya Sakamoto

Sergeant Yamada

Tetsu Nakamura

Warship Captain

Yutaka Nakayama

Sailor

Mitsuo Tsuda

Defense Agency Executive B

Kôji Uno

Police Officer

Sadako Amemiya

Memoko - Girl in Susumu's studio

Rinsaku Ogata

Hideo Ôtsuka

Yutaka Oka

Man of Bus

Yukihiko Gondô

Military Henchman

Shōichi Hirose

Mu Henchman

Katsumi Tezuka

Mu Henchman

Takuzō Kumagai

(as Jirô Kumagai)

Yasuzō Ogawa

Mu Henchman Beside High Priest of Mu

Shirō Tsuchiya

Senior Officer

Wataru Ōmae

Police Officer

Osman Yusuf

Mu Submarine Crewman

Toshio Miura

Masayoshi Kawabe

Hiroshi Akitsu

Hideo Shibuya

Keisuke Yamada

Shinjirô Hirota

Keisuke Yamaji

Kuniyoshi Kashima

Hal Archer

Detective Ito (voice)

Sanjay Mamohan Berry

One of Mu Imperials

Bin Furuya

JSDF member

Kazuo Hinata

Defense Agency Executive

Eisaburo Komatsu

Sergeant Goten Kenbutai

Akio Kusama

Todoroki Takashi, Ken Taketai officersI

Keiji Sakakida

Mt. Mihara Climber

Kamayuki Tsubono

Enver Altenbay

Minor Role (uncredited)

Ralph Jesser

One of Mu Imperials (uncredited)

Haruo Nakajima

Mu Empire man / Self Defense Forces exec

Ted Thomas

Jinguji / High Priest (voice) (uncredited)