ゴジラ対メガロ

佐々木勝彦

Inventor Goro Ibuki

林ゆたか

Hiroshi Jinkawa

Hiroyuki Kawase

Rokuro 'Roku-chan' Ibuki

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森幹太

Japan Special Defense Forces Chief

富田浩太郎

Lead Seatopian Agent

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大月ウルフ

Seatopian Agent

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三上左京

Truck Driver's Assistant

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Fumiyo Ikeda

Man from Unit 1

Robert Dunham

Emperor Antonio of Seatopia

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Gentaro Nakajima

Truck Driver

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Ralph Jesser

Antonio's Aide (Radio Operator in White)

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Shinji Takagi

Godzilla

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伊達 秀人

Megalon

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駒田 次利

Jet Jaguar

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森正親

Jet Jaguar