ゴジラ対メガロ

Inventor Goro Ibuki

Hiroshi Jinkawa

Rokuro 'Roku-chan' Ibuki

Japan Special Defense Forces Chief

Lead Seatopian Agent

Seatopian Agent

Truck Driver's Assistant

Man from Unit 1

Emperor Antonio of Seatopia

Truck Driver

Antonio's Aide (Radio Operator in White)

Godzilla

Megalon

Jet Jaguar