The Original Godzilla - Godzilla Vs Megalon is a UK VHS release by 4 Front Video and PolyGram Filmed Entertainment on 15th June 1998.
- Katsuhiko Sasaki as Inventor Goro Ibuki
- Hiroyuki Kawase as Rokuro 'Roku-chan' Ibuki
- Yutaka Hayashi as Hiroshi Jinkawa
- Robert Dunham as Emperor Antonio of Seatopia
- Kotaro Tomita as Lead Seatopian Agent
- Wolf Ohtsuki as Seatopian Agent
- Gentaro Nakajima as Truck Driver
- Sakyo Mikami as Truck Driver's Assistant
- Shinji Takagi as Godzilla
- Hideto Date as Megalon
- Tsugutoshi Komada as Jet Jaguar
- Kenpachiro Satsuma as Gigan
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