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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 »




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Credited cast:
Ken Abe (as Sonny Chiba) (as Shin-Ichi Chiba)
Peggy Neal ...
Jenny Gleason
Franz Gruber ...
Commander Brown (as Frank Gruber)
Steve Queens ...
Captain Bob
Andre Husse
Erik Neilson ...
Dr. Moore (as Enric Nielsen)
Eivary Keller
Hajime Satô ...
(as Terence Ford)
Mike Daneen ...
Dr. Josef Heim
Hideo Murota ...
Tsuneji Miemachi
John Kleine
Rest of cast listed alphabetically:
Hans Horneff
Andrew Hughes ...
Professor Howard


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





Release Date:

1 July 1966 (Japan)  »

Also Known As:

The Terror Beneath the Sea  »

Filming Locations:

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Technical Specs

Sound Mix:



Aspect Ratio:

1.33 : 1
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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 »


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

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User Reviews

EERIE sensation sure to TERRIFY the nation!
2 April 2016 | by (Ontario, Canada) – See all my reviews

YOU, thinking of Japanese monster horror, will likely picture either Godzilla or some kind of bodily mutilation, likely involving lots of tentacles (both fair).

YOU probably think you've seen it all.

But YOU have yet to experience the mid-point somewhere in between: a thrilling, chilling, underwater adventure so sixties it's hip! It's now! And how! Behold: the delightfully nostalgic, charming murk that is... TERROR BENEATH THE SEA!

(bum bum buuuuummm!!!)

SHRIEK in terror,as you attempt to uncover the (not so mystifying) mystery of the strange marine sightings interrupting underwater torpedo tests!

CRINGE at the gloriously wooden overacting, especially the nearly unbearably whiny Peggy Neal, and one navy sergeant bearing an uncanny resemblance to Bradley Cooper!

GROOVE to the funky James Bond vibe of the underwater base, matching uniformed minions, and cackling megalomaniac foe, all given a swingin' sizzle by the slam-banging jazzy adore!

GASP at the strange, eerie underwater creatures - like the Creature of the Black Lagoon with his face caught in a vice! Then HIDE YOUR EYES from the stop motion transformations creating the abominations (see? We promised bodily mutilation!)...which would likely be more memorably grotesque with a higher budget, so the actors weren't left looking like they have shredded condoms all over their faces.

PUZZLE at the fish-men being referred to as cyborgs, and how their actions are controlled by an outrageously 60s wall dial. But don't sweat the details - the film sure doesn't.

CHEER as dashing martial arts star Sonny Chiba finally (finally!) gets to unleash some whoop-ass in a fantastically campy explosive finale, after spending too much of the movie frowning and being imprisoned - even if he does more shooting than martial arts-ing (boo).

You ask yourself: are your nerves (or attention span) up for the spectacle, the pizazz, of this frightfully fun creature feature?? Well, there's only one way to find out. Take the plunge with Sonny and Peggy. Steel your nerves. And uncover the outrageous odyssey that is... TERROR BENEATH THE SEA!


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