- Country: Japan
- Genres: Horror, Sci-Fi
- Release: 1966-07-01
- Director: Hajime Sato
- Writers: Masami Fukushima , Kôichi Ôtsu
- Language: English | Japanese
- Stars: Shin’ichi Chiba , Peggy Neal , Franz Gruber , Gunter Braun , Andrew Hughes , Erik Neilson , Beverly Kahler , Hajime Sato , Mike Daneen , Hideo Murota
- Runtime: 79 min
- Awards: N/A
- AKA: Kaitei daisensô (India) , Water Cyborg (Japan) , Terror Beneath the Sea (United States of America) , Agent X-2: Operation Underwater (United States of America) , Agent X-2: Operation Underwater (United Kingdom) , Battle Beneath the Sea , Water Cyborgs , The Great Undersea War , Terror Beneath the Sea (Canada) , In the Hunt (Japan) , La malédiction des grands fonds (France, French Republic) , Robots 2000: Odyssée sous-marine (France, French Republic) , I mostri della città sommersa (Italy) , Zombi 18: The Undead Cyborg of the Ocean (Canada) , Water Cyborg , Zombi 18: The Undead Cyborg of the Ocean (Tajikistan) , UX-Bluthund - Tauchfahrt des Schreckens , Agent X-2: Operation Underwater , Ужас на морском дне (Russian Federation) , Terror Beneath the Sea , Terror Beneath the Sea (United Kingdom) , Kaitei daisensô
- Plot: While covering a test of guided torpedoes, two reporters believe they saw what appeared to be a strange-looking swimming creature. They investigate the matter further and discover that there is a race of fish-men living under the sea. The fish-men capture the pair and keep them prisoner in their underwater city.
- IMDB:tt0060580
The Terror Beneath the Sea Cast · · · ALL
Hajime Sato
Director
Shin’ichi Chiba
Ken Abe
Peggy Neal
Jenny Gleason
Franz Gruber
Commander Brown
Andrew Hughes
Erik Neilson
Dr. Moore
Mike Daneen
Dr. Josef Heim
Koji Miemachi
Tadashi Suganuma
Nishida
Enver Altenbay
Hans Horneff
Bill
Gunter Braun
Captain Bob