The Sea Serpent (1984)
"Serpiente de mar" (original title)

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Ratings: 3.3/10 from 233 users  
Reviews: 12 user | 12 critic

A serpent, created by radioactivity, threatens a Spanish coastal town.


(as Gregory Greens)


(story), (screenplay)
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Cast overview, first billed only:
Pedro Fontán
Taryn Power ...
Profesor Timothy Wallace
Gérard Tichy
Carole James ...
Jack Taylor ...
Víctor Israel ...
Miguel de Grandy
José Canalejas
Paul Benson
León Klimovsky ...
Dr. Moore
Eduardo Bea
Teresa del Olmo
Alicia González


A nuclear detonation in the Atlantic re-animates a prehistoric sea monster. The creature terrorizes the Spanish coastline, attacking swimmers, boats and lighthouses without mercy. A sea captain whose ship was sunk by the monster and an American tourist whose best friend was killed by the beast team up to stop the monster, along with the help of respected oceanographer (Ray Milland). Written by Jeremy Lunt <>

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Adventure | Horror


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Release Date:

29 June 2015 (USA)  »

Also Known As:

Hydra  »

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Did You Know?


This film was Ray Milland's last theatrical feature. See more »


Before the sea serpent attack on the dock, one half of the screen is wobbling up and down, indicating a split-screen. See more »


Featured in Zarpazos! Un Viaje Por El Spanish Horror (2013) See more »

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User Reviews

Simply must be seen to be believed.
28 May 2003 | by (pembroke,massachusetts.) – See all my reviews

A giant, prehistoric hand-puppet is woken-up from it's ancient sleep. It goes on a rampage, destroys a lighthouse, eats/swallows a girl whole, roars at people, then eventually, in true b-movie fashion, is killed. The special effects are third rate, the acting is atrocious, and the plot is as bland as it gets. But the film is still amusing because of just how cheaply made it is.

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