Actors

Actor

Inventor Goro Ibuki

Actor

Hiroshi Jinkawa

Actor

Rokuro 'Roku-chan' Ibuki

Actor

Japan Special Defense Forces Chief

Actor

Lead Seatopian Agent

Actor

Seatopian Agent

Actor

Truck Driver's Assistant

Actor

Man from Unit 1

Actor

Emperor Antonio of Seatopia

Writing

Truck Driver

Actor

Antonio's Aide (Radio Operator in White)

Actor

Godzilla

Actor

Megalon

Actor

Jet Jaguar

Actor

Jet Jaguar

Actor

Gigan (as Kengo Nakayama)

Actor

Emperor Atonio of Seatopia (voice)

Actor

Narrator

Actor

Godzilla (archive footage) (uncredited)