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久保明 as Kenji Murai - Professor |
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水野久美 as Mami Sekiguchi - Singer |
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小泉博 as Naoyuki Sakuta - Skipper |
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佐原健二 as Senzô Koyama - Sailor |
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太刀川寛 as Etsurô Yoshida - Writer |
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土屋嘉男 as Masafumi Kasai - Owner |
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Miki Yashiro as Akiko Sôma - Student |
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天本英世 as Transitional Matango |
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熊谷卓三 as Doctor (as Jiro Kumagai) |
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草間璋夫 as Police Personnel |
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岡豊 as Doctor |
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山田圭介 as Doctor |
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Kazuo Hinata as Police Personnel |
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手塚 勝巳 as Police Personnel |
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中島春雄 as Matango |
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Tokio Ôkawa as Matango |
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宇留木康二 as Matango |
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篠原正記 as Matango |
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Kuniyoshi Kashima as Transitional Matango |
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伊原徳 as Transitional Matango |
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Mitsuko Hayashi as Nurse |
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Tsurue Ichimanji as Nurse |
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池谷三郎 as Radio Announcer (voice) (uncredited) |
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勝部義夫 as Nightclub Patron (uncredited) |
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渋谷英男 as Nightclub Staff (uncredited) |
| Directing | 本多猪四郎 | Director |
| Writing | 木村 武 | Screenplay |
| Sound | Minoru Kaneyama | Sound Effects |
| Sound | 矢野口文雄 | Sound Recordist |
| Sound | 別宮貞雄 | Original Music Composer |
| Camera | 小泉一 | Director of Photography |
| Editing | 兼子玲子 | Editor |
| Art | 育野重一 | Production Design |
| Sound | 下永尚 | Sound Mixer |
| Production | Shigeru Nakamura | Production Manager |
| Visual Effects | 円谷英二 | Visual Effects |
| Writing | William Hope Hodgson | Short Story |
| Writing | 木村 武 | Adaptation |
| Writing | Shinichi Hoshi | Story |
| Writing | 福島正実 | Story |
| Directing | 梶田興治 | First Assistant Director |
| Production | 田中友幸 | Executive Producer |
| Crew | 円谷英二 | Special Effects |
| Visual Effects | 円谷英二 | Visual Effects Director |
| Crew | 中野昭慶 | Special Effects |
| Crew | 中野昭慶 | Special Effects Assistant |
| Visual Effects | 中野昭慶 | Visual Effects |
| Visual Effects | 中野昭慶 | Visual Effects Director |
| Costume & Make-Up | Teizô Toshimitsu | Costume Design |
| Visual Effects | Teizô Toshimitsu | Modeling |
| Costume & Make-Up | 開米 栄三 | Costume Design |
| Visual Effects | 開米 栄三 | Modeling |
| Visual Effects | 村瀬継蔵 | Modeling |
| Costume & Make-Up | 村瀬継蔵 | Costume Design |
| Costume & Make-Up | 村瀬継蔵 | Assistant Costume Designer |
| Costume & Make-Up | Shigeru Komatsuzaki | Costume Design |
| Crew | 有川貞昌 | Special Effects |
| Visual Effects | 有川貞昌 | VFX Director of Photography |
| Crew | 渡辺 明 | Visual Effects Art Director |
| Visual Effects | Tadashi Koike | Visual Effects Production Manager |
| Lighting | Seishichi Kojima | Lighting Technician |
| Lighting | 岸田九一郎 | Gaffer |
| Visual Effects | 岸田九一郎 | VFX Lighting Artist |
| Crew | 富岡 素敬 | Special Effects |
| Visual Effects | 富岡 素敬 | VFX Director of Photography |
| Visual Effects | Yukio Manoda | Visual Effects |
| Visual Effects | Yukio Manoda | Visual Effects Camera |
| Visual Effects | Yoshiyuki Tokumasa | Visual Effects |
| Visual Effects | Yoshiyuki Tokumasa | Visual Effects Camera |
| Visual Effects | 向山 宏 | Visual Effects |
| Visual Effects | 向山 宏 | Visual Effects Compositor |
| Crew | 井上 泰幸 | Special Effects Assistant |
| Crew | 井上 泰幸 | Visual Effects Art Director |
| Crew | 白崎 治郎 | Special Effects Assistant |
| Crew | 白崎 治郎 | Visual Effects Art Director |
| Visual Effects | 飯塚定雄 | Visual Effects |
| Directing | Kunmei Takahashi | Assistant Director |
