
Godzilla vs. Megalon
Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.
Release Date: 1973-03-17

Katsuhiko Sasaki
Inventor Goro Ibuki

Yutaka Hayashi
Hiroshi Jinkawa

Hiroyuki Kawase
Rokuro 'Roku-chan' Ibuki

Kotaro Tomita
Lead Seatopian Agent

Robert Dunham
Emperor Antonio of Seatopia

Kenpachirō Satsuma
Gigan (as Kengo Nakayama)

Gorō Naya
Emperor Atonio of Seatopia (voice)

Haruo Nakajima
Godzilla (archive footage) (uncredited)