夏木陽介
Detective Shindo

星由里子
Naoko Shindo

小泉博
Professor Murai

志村喬
Dr. Tsukamoto

伊藤エミ
Shobijin

伊藤ユミ
Shobijin

若林映子
Princess Maas Doulina Salno of Selgina

伊藤久哉
Chief Assassin Malmess

平田昭彦
Chief Detective Okita

髙田稔
Prime Minister

松本染升
Alien Expert

沢村いき雄
Honest Fisherman

野村浩三
Geologist

佐原健二
Editor in Chief Kanamaki

黒部進
Assassin with Mustache (uncredited)

伊吹徹
Short-Tie Assassin

鈴木和夫
Door-Opener Assassin

加藤春哉
Journalist

大友伸
Boss of Assassins

大村千吉
Would-Be Hat Retriever

中山豊
Tourist with Lost Hat

ヘンリー大川
Astronomer

天本英世
Princess Salno's aide

小杉義男
Chief of Infant Island

田島 義文
Ship Captain

岡豊
Meteoritic (uncredited)

宇野晃司
Hotel Clerk (uncredited)

石田茂樹
Man in Crowd (uncredited)

古田俊彦
Villager (uncredited)

富田浩太郎
Villager

Ichiya Aozora
Self / TV Host (uncredited)

Senya Aozora
Self / TV Host (uncredited)

英百合子
Mother Shindo

渋谷英男
Journalist

中島春雄
Godzilla

広瀬正一
King Ghidorah

篠原正記
Rodan (uncredited)

宇留木康二
Rodan (uncredited)