Movie

Godzilla vs. Megalon

Released: March 17, 1973 (1973)

Runtime: 82 minutes

Genres: Action, Adventure, Science Fiction, Fantasy

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.

Main Cast (Top 10 billed, oldest first)

Kanta Mori as Japan Special Defense Forces Chief
Age at release: 49
Kotaro Tomita as Lead Seatopian Agent
Age at release: 48
Robert Dunham as Emperor Antonio of Seatopia
Age at release: 41
Ulf Otsuki as Seatopian Agent
Age at release: 38
Sakyo Mikami as Truck Driver's Assistant
Age at release: 32
Katsuhiko Sasaki as Inventor Goro Ibuki
Age at release: 28
Yutaka Hayashi as Hiroshi Jinkawa
Age at release: 26
Hiroyuki Kawase as Rokuro 'Roku-chan' Ibuki
Age at release: 8
Fumiyo Ikeda as Man from Unit 1
Age at release: Unknown
Ralph Jesser as Antonio's Aide (Radio Operator in White)
Age at release: Unknown

Show more cast

Haruo Nakajima as Godzilla (archive footage) (uncredited)
Age at release: 44
Gorō Naya as Emperor Atonio of Seatopia (voice)
Age at release: 43
Eisuke Nakanishi as Narrator
Age at release: 35
Kenpachirō Satsuma as Gigan (as Kengo Nakayama)
Age at release: 25
Shinji Takagi as Godzilla
Age at release: Unknown
Hideto Odachi as Megalon
Age at release: Unknown
Tsugutoshi Komada as Jet Jaguar
Age at release: Unknown
Masachika Mori as Jet Jaguar
Age at release: Unknown