Jun Hashizume

Lieutenant Koji Shinjo

Megumi Odaka

Miki Saegusa

Zenkichi Yoneyama

Lieutenant Kiyoshi Sato

Akira Nakao

Colonel Takaaki Aso

Yousuke Saito

Dr. Susumu Okubo

Koichi Ueda

Deputy Commander Hyodo

Kenji Sahara

Minister Takayuki Segawa

Towako Yoshikawa

Dr. Chinatsu Gondo

Akira Emoto

Major Akira Yuki

Keiko Imamura

Cosmos

Sayaka Osawa

Cosmos

Kenpachirō Satsuma

Godzilla

Ryo Hariya

SpaceGodzilla

Wataru Fukuda

M.O.G.U.E.R.A.

Little Franky

Little Godzilla

Houka Kinoshita

Moguera Pilot

Toru Minegishi

Colonel Goro Gondo (archival footage) (uncredited)