Detective Shindo

Yosuke Natsuki

Naoko Shindo

Yuriko Hoshi

Professor Miura

Hiroshi Koizumi

Princess Maas Doulina Salno of Selgina

Akiko Wakabayashi

Dr. Tsukamoto

Takashi Shimura

Shobijin (Twin Fairy)

Emi Ito

Mothra's Twin Priestess

Yumi Ito

Malmess, Chief Assassin

Hisaya Itô

Chief Assassin Malmess

Hisaya Ito

Assassin with Mustache (uncredited)

Susumu Kurobe

Chief Detective Okita

Akihiko Hirata

Prime Minister

Minoru Takada

Editor in Chief Kanamaki

Kenji Sahara

Alien Expert

Someshō Matsumoto

Honest Fisherman

Ikio Sawamura

Short-Tie Assassin

Toru Ibuki

Self / TV Host (uncredited)

Ichiya Aozora

Geologist

Kōzō Nomura

Ishiro Honda

Heedless Ship Captain

Yoshifumi Tajima

Self / TV Host (uncredited)

Senya Aozora

Would-Be Hat Retriever

Senkichi Omura

Kingugidora

Shoichi Hirose

Showoff Door-Opener Assassin

Kazuo Suzuki

Journalist

Haruya Katō

Godzilla

Haruo Nakajima

Villager (uncredited)

Toshihiko Furuta

Eisei Amamoto

Boss of Assassins

Shin Ōtomo

Man in Crowd (uncredited)

Shigeki Ishida

Tourist with Lost Hat

Yutaka Nakayama

Astronomer

Heihachirō Ōkawa

Chief of Infant Island

Yoshio Kosugi

Princess Salno's aide

Hideyo Amamoto

Meteorite Scientist

Yutaka Oka

Boss of Assassins

Shin Otomo

Hotel Clerk (uncredited)

Kôji Uno

Villager

Kotaro Tomita

Godzilla (uncredited)

Katsumi Tezuka

Mother Shindo

Yuriko Hanabusa

Eiji Okada

Journalist

Hideo Shibuya

Rodan

Kōji Uruki

King Ghidorah (uncredited)

Haruya Sakamoto