cast
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Frankie Sakai
Senichiro 'Sen-chan' Fukuda
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Hiroshi Koizumi
Dr. Shin'ichi Chûjô
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Kyōko Kagawa
Michi Hanamura
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Jerry Itō
Clark Nelson
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Ken Uehara
Dr. Harada
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Emi Ito
Shobijin (Twin Fairy)
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Yumi Ito
Shobijin (Twin Fairy)
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Takashi Shimura
News Editor
- Akihiro Tayama Shinji Chûjô
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Akihiko Hirata
Doctor
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Tetsu Nakamura
Nelson's Henchman
- Obel Wyatt Dr. Roff
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Seizaburō Kawazu
General
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Yoshibumi Tajima
Military Advisor
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Robert Dunham
Rolisican Official
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Kenji Sahara
Helicopter Pilot
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Yoshio Kosugi
Ship Captain
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Ren Yamamoto
Ship Survivor
- Haruya Katō Ship Survivor
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Shōichi Hirose
Dam Worker
- Hiroshi Takagi Nelson's Henchman
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Yasuhisa Tsutsumi
Woodcutter
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Teruko Mita
Rest House Owner's Wife
- Kōji Iwamoto Nelson's Henchman
- Mitsuo Tsuda Surveyor
- Masamitsu Tayama Shinji Chûjô
- Toshio Miura Nelson's Henchman
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Tadashi Okabe
Surveyor
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Akira Wakamatsu
Nelson's Henchman
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Yutaka Nakayama
Radio Communicator
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Osman Yusuf
Nelson's Rolisican Henchman
- Akira Yamada Island Worshipper
- Kôji Uno Police Officer
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Wataru Ōmae
Official
- Toshihiko Furuta Dam Worker
- Keisuke Matsuyama Shipmate
- Takeo Nagashima Island Dancer
- Mitsuo Matsumoto Police Officer
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Hideo Shibuya
Journalist
- Kazuo Hinata Official
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Shigeo Katō
Dam Watchman
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Rinsaku Ogata
Ship Survivor
- Yutaka Oka Captain of Transport
- Kô Hayami Island Dancer
- Hiroyuki Satake Police officer
- Kazuo Imai Announcer
- Hiroshi Akitsu Nelson's henchman
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Akio Kusama
Surveyor
- Gorô Sakurai Member of Task Force
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Haruo Nakajima
Mothra
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Katsumi Tezuka
Mothra