Yōsuke Natsuki
Detective Shindo
Hiroshi Koizumi
Professor Murai
Takashi Shimura
Dr. Tsukamoto
Akiko Wakabayashi
Princess Maas Doulina Salno of Selgina
Hisaya Ito
Chief Assassin Malmess
Akihiko Hirata
Chief Detective Okita
Minoru Takada
Prime Minister
Someshō Matsumoto
Alien Expert
Ikio Sawamura
Honest Fisherman
Kenji Sahara
Editor in Chief Kanamaki
Susumu Kurobe
Assassin with Mustache (uncredited)
Tōru Ibuki
Short-Tie Assassin
Kazuo Suzuki
Door-Opener Assassin
Shin Ōtomo
Boss of Assassins
Senkichi Ōmura
Would-Be Hat Retriever
Yutaka Nakayama
Tourist with Lost Hat
Heihachirō Ōkawa
Astronomer
Hideyo Amamoto
Princess Salno's aide
Yoshio Kosugi
Chief of Infant Island
Yoshibumi Tajima
Ship Captain
Yutaka Oka
Meteoritic (uncredited)
Kôji Uno
Hotel Clerk (uncredited)
Shigeki Ishida
Man in Crowd (uncredited)
Toshihiko Furuta
Villager (uncredited)
Ichiya Aozora
Self / TV Host (uncredited)
Senya Aozora
Self / TV Host (uncredited)
Yuriko Hanabusa
Mother Shindo
Shōichi Hirose
King Ghidorah
Masaki Shinohara
Rodan (uncredited)
Kōji Uruki
Rodan (uncredited)
