Tamio Kawaji .... Hiroshi Kurosaki

Yôko Yamamoto .... Itoko Koyanagi

Yuji Okada .... Daize Tonooka

Koji Wada .... Mashida

Tatsuya Fuji .... George Inoue

Keisuke Inoue .... President Funazu

Zenji Yamada .... Captian of the Kamome-maru

Bumon Koto .... Chieftain

Hiroshi Sugie .... Reporter 1

Saburo Hiromatsu .... Hosoda

Binnosuke Nagao .... Commander Riku

Masaru Kamiyama .... The Professor

Gappa the Triphibian Monsters (1998) (USA: video title)

Gappa, the Triphibian Monster (1967)

Monster from a Prehistoric Planet (1967)

Runtime: Japan:90

Country: Japan / USA

Language: Japanese

Color: Color (Eastmancolor)

Sound Mix: Mono

These credits come from the site known as IMDb