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The Terror Beneath the Sea (1966)

Kaitei daisensô (original title)
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 ... See full summary »


Hajime Satô


Masami Fukushima (book), Kôichi Ôtsu

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Cast overview:
Shin'ichi Chiba ... Ken Abe (as Sonny Chiba)
Peggy Neal Peggy Neal ... Jenny Gleason
Franz Gruber Franz Gruber ... Commander Brown (as Frank Gruber)
Gunter Braun Gunter Braun ... Captain Bob
Andrew Hughes Andrew Hughes ... Professor Howard
Erik Neilson Erik Neilson ... Dr. Moore (as Enric Nielsen)
Beverly Kahler Beverly Kahler
Hajime Satô Hajime Satô ... (as Terence Ford)
Mike Daneen Mike Daneen ... Dr. Josef Heim
Hideo Murota Hideo Murota ... Henchman
Tsuneji Miemachi Tsuneji Miemachi
Hans Horneff Hans Horneff ... (as Hans Hornef)
John Kleine John Kleine


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. Written by frankfob2@yahoo.com

Plot Summary | Add Synopsis


Horror | Sci-Fi




Japan | Italy | USA



Release Date:

1 July 1966 (Japan) See more »

Also Known As:

The Terror Beneath the Sea See more »

Filming Locations:

Toei Studio, Japan

Company Credits

Show more on IMDbPro »

Technical Specs

Sound Mix:



Color (Eastmancolor)

Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


The so-called unmanned submarine that was destroyed during the torpedo demonstration was clearly based on the USS Triton, a U.S. nuclear-powered submarine that was famous for making the first submerged around-the-world voyage in 1960. See more »


The latex make-up on actors Sonny Chiba and Peggy Neal changes from shot to shot, sometimes disappearing altogether. See more »

Crazy Credits

The American version's opening credits constantly overlap each other and fade in and out. See more »

Alternate Versions

Made in 2 versions with Japanese version having more violence and international version having longer English language performances. See more »


Featured in Son of Svengoolie: Terror Beneath the Sea (1966) (1981) See more »

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User Reviews

Kevin Spacey created the Creature From The Black Lagoon?
25 April 2017 | by OrangieTooDopeSee all my reviews

While this movie has all the elements that make old sci-fi movies suck,it somehow doesn't suck. The creature from the black lagoon has been cloned and is now in Japan,so of course two reporters must investigate.They immediately go scuba diving because what is a movie without scuba diving?I swear I can't remember the last time I saw a movie without scuba diving.Of course one of the reporters is a woman and wouldn't you know it...she sees the monster first.Two times when the camera cuts to him it's extremely clear that he's not underwater.As the woman swims away they superimpose the monster over her.Not content with nearly being killed, they must investigate further.That's when they discover that a guy has figured out how to transform humans into any form he wants.He explains how but then they just put what looks like a few human organs sewn together into a guy and the transformation begins.It's long,tedious and boring and the woman gasps constantly at the extremely slow process.At one point the guy even gets tiger feet before becoming a CFTBL clone. Did I mention that this guy has made a whole army of these things? And that he calls them cyborgs even though they have nothing robotic about them?And that he controls the entire army with a big knob that has settings like "work" and "fight"?And when he needs them all to stop he has to make a pa announcement so the guy standing next to him can turn the knob. I'm sure I didn't mention that he looks like Kevin Spacey in sunglasses.How do I even know who that is?? You would think that one of the monsters having his armpit "skin" ripped open would be the funniest thing in the movie but you'd be wrong.The funniest, and therefore best part of the movie, is all the underwater fire.What?I didn't mention that most of the movie takes place under water?Or that this guy has built his own Epcot center in the ocean? Doesn't matter. All that matters is this movie has more underwater fire than you will see everywhere else for as long as you live.

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