Ghidorah, the Three-Headed Monster

Detective Shindo

Yōsuke Natsuki

Naoko Shindo

Yuriko Hoshi

Professor Murai

Hiroshi Koizumi

Dr. Tsukamoto

Takashi Shimura

Shobijin

Emi Ito

Shobijin

Yumi Ito

Princess Maas Doulina Salno of Selgina

Akiko Wakabayashi

Chief Assassin Malmess

Hisaya Ito

Chief Detective Okita

Akihiko Hirata

Prime Minister

Minoru Takada

Alien Expert

Someshō Matsumoto

Honest Fisherman

Ikio Sawamura

Geologist

Kōzō Nomura

Editor in Chief Kanamaki

Kenji Sahara

Assassin with Mustache (uncredited)

Susumu Kurobe

Short-Tie Assassin

Tōru Ibuki

Door-Opener Assassin

Kazuo Suzuki

Journalist

Haruya Katō

Boss of Assassins

Shin Ōtomo

Would-Be Hat Retriever

Senkichi Ōmura

Tourist with Lost Hat

Yutaka Nakayama

Astronomer

Heihachirō Ōkawa

Princess Salno's aide

Hideyo Amamoto

Chief of Infant Island

Yoshio Kosugi

Ship Captain

Yoshibumi Tajima

Meteoritic (uncredited)

Yutaka Oka

Hotel Clerk (uncredited)

Kôji Uno

Man in Crowd (uncredited)

Shigeki Ishida

Villager (uncredited)

Toshihiko Furuta

Villager

Kotaro Tomita

Self / TV Host (uncredited)

Ichiya Aozora

Self / TV Host (uncredited)

Senya Aozora

Mother Shindo

Yuriko Hanabusa

Journalist

Hideo Shibuya

Godzilla

Haruo Nakajima

King Ghidorah

Shōichi Hirose

Rodan (uncredited)

Masaki Shinohara

Rodan (uncredited)

Kōji Uruki