Katsuhiko Sasaki

Biologist Akira Ichinose

Tomoko Ai

Katsura Mafune

Akihiko Hirata

Dr. Shinzô Mafune

Tadao Nakamaru

INTERPOL Chief Tagawa

Gorō Mutsumi

Commander Mugal

Masaaki Daimon

Captain Kusakari

Katsumasa Uchida

Jiro Murakoshi

Shin Roppongi

Yûuchi Wakayama

Tōru Ibuki

Deputy Commander Tsuda

Kenji Sahara

Defense Force Commander

Kotaro Tomita

Professor Ôta

Ikio Sawamura

Mafune's Butler

Kazuo Suzuki

Alien Henchman #1

Yoshio Kirishima

Alien Henchman #2

Masayoshi Kikuchi

Alien Henchman #3

Takuya Yuki

Alien Henchman #4

Jun Nishihara

Alien Henchman #5

Akinori Umezu

Boy #1

Shizuko Azuma

Old Country Lady

Toshihiko Furuta

Interpol Worker

Takuzō Kumagai

Defense Corp Executive

Toru Kawai

Godzilla

Kazunari Mori

Mechagodzilla

Tatsumi Nikamoto

Titanosaurus

Yasuko Agawa

Yuri Yamamoto

Yasuzō Ogawa

Hiroya Morita

Shōichi Hirose

Haruo Suzuki

Saburô Kadowaki

Shigeo Katō

Kazuo Imai

Toshio Hosoi