O Desafio dos Monstros

久保明

Taro Kudo

小林夕岐子

Saki, native girl

高橋厚子

Ayako Hoshino

土屋嘉男

Dr. Kyoichi Mida

中村哲

Chieftain Ombo

堺左千夫

The Editor (uncredited)

佐原健二

Makoto Obata

藤木悠

Promotion Division Manager (uncredited)

Noritake Saito

Rico, the guide (uncredited)

当銀長太郎

Yokoyama, an agent (uncredited)

大前亘

Sakura (uncredited)

権藤幸彦

Islander (uncredited)

加藤茂雄

Islander (uncredited)

緒方燐作

Islander (uncredited)

Yûko Sugihara

Stewardess (uncredited)

中島春雄

Gezora / Ganimes