ゴジラ対メガロ

佐々木勝彦

Inventor Goro Ibuki

林ゆたか

Hiroshi Jinkawa

Hiroyuki Kawase

Rokuro 'Roku-chan' Ibuki

森幹太

Japan Special Defense Forces Chief

富田浩太郎

Lead Seatopian Agent

大月ウルフ

Seatopian Agent

三上左京

Truck Driver's Assistant

Fumiyo Ikeda

Man from Unit 1

Robert Dunham

Emperor Antonio of Seatopia

Gentaro Nakajima

Truck Driver

Ralph Jesser

Antonio's Aide (Radio Operator in White)

Shinji Takagi

Godzilla