Katsuhiko Sasaki as Professor Mazaki

Kosuke Toyohara as Kenichiro Terasawa

Anna Nakagawa as Emmy Kano

Megumi Odaka as Miki Saegusa

Akiji Kobayashi as Yuzo Tsuchiashi

Tokuma Nishioka as Takehito Fujio

Yoshio Tsuchiya as Businessman Yasuaki Shindo

Kenji Sahara as Minister Takayuki Segawa

Koichi Ueda as Former Lagos Island Soldier Ikehata

Sō Yamamura as Prime Minister

Yasunori Yuge as Army Chief

Kiwako Harada as Chiaki Moriyuma

Kenpachirō Satsuma as Godzilla

'Hurricane' Ryu Hariken as King Ghidorah

Robert Scott Field as Android M-11

Wataru Fukuda as Godzillasaurus

Jun'ichi Yaoi as Guest Commentator

Eizo Kaimai as Original Godzilla (archive photo) (uncredited)