宝田明

Astronaut Kazuo Fuji

Nick Adams

Astronaut F. Glenn

水野久美

Miss Namikawa

沢井桂子

Haruno Fuji

Jun Tazaki

Dr. Sakurai

田崎潤

Yoshio Tsuchiya

Controller of Planet X

土屋嘉男

Akira Kubo

Tetsuo Torii

久保明

佐々木孝丸

Chairman of Earth Committee

村上冬樹

Medical Representative

田島 義文

Mobile Commander

田武謙三

President of World Education Corporation (Xilien)

Noriko Sengoku

Delegate

千石規子

松本染升

Buddhist Representative

清水元

Minister of Defense

伊吹徹

Earth Base Xilien

鈴木和夫

Earth Base Xilien

堤康久

Captain of First Survey Corps

桐野洋雄

Captain of Second Survey Corps

塩沢とき

Tetsuo's Mother

津田光男

JSDF Soldier / Xilien

熊谷卓三

JSDF Soldier / Xilien

宇野晃司

Namikawa's Associate (Earth Base Xilien)

橘正晃

Scientist

岡豊

Reporter

緒方燐作

JSDF Soldier

岡部正

World Space Agency Staff

Ryôji Shimizu

World Space Agency Staff

Hideki Furukawa

World Space Agency Staff

坪野鎌之

Reporter

伊藤実

Reporter / Xilien

Haruo Nakajima

Godzilla

中島春雄

篠原正記

Rodan

Shōichi Hirose

King Ghidorah

広瀬正一

納谷悟朗

Astronaut F. Glenn (voice)

池谷三郎

News Announcer (uncredited)

Yoshizo Tatake

Xilien (uncredited)

勝部義夫

World Education Corporation Member (Earth Base Xilien) (uncredited)

若松明

World Education Corporation Member (Earth Base Xilien) (uncredited)

坂本晴哉

JSDF Soldier (uncredited)