21 user 8 critic

The Mysterious Monsters (1975)

G | | Documentary | July 1976 (USA)
Peter Graves examines a range of supernatural topics, including mysterious monsters Bigfoot, the Loch Ness monster and the Yeti, and also psychics and hypnotism.


Robert Guenette


Robert Guenette




Credited cast:
Peter Graves ... Self - Narrator
Peter Hurkos ... Self
William Stenberg William Stenberg ... Self
Sidney Walter Sidney Walter ... Self (as Dr. Sidney Walter)
Jerilou Whelchel Jerilou Whelchel ... Self
Rest of cast listed alphabetically:
Geoffrey Bourne Geoffrey Bourne ... Self (as Dr. Geoffrey Bourne)
Lawrence Bradley Lawrence Bradley ... Self (as Dr. Lawrence Bradley)
Gregory Brusey Gregory Brusey ... Self (as Rev. Father Brusey)
Peter Byrne Peter Byrne ... Self
John Cobb John Cobb ... Self (archive footage)
Tim Dinsdale Tim Dinsdale ... Self
John Green John Green ... Self
Grover Krantz Grover Krantz ... Self
Ed McLarney Ed McLarney ... Self
Robert W. Morgan Robert W. Morgan ... Self (as Robert Morgan)


One of the many notorious 70's "unknown" documentaries, The Mysterious Monsters covers topics such as Bigfoot and the Loch Ness Monster. Pictures, sounds, and videos of these two monsters are examined by Peter Graves, the host. Psychics, hypnotism, and the history of Bigfoot in many ancient cultures is also scrutinized. Written by Andrew Schaeffer

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PROOF! There Are Monsters Living Among Us! See more »




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Features Patterson-Gimlin Film (1967) See more »

User Reviews

What "The Mysterious Monsters" is about!
16 December 2001 | by quincyspalmdSee all my reviews

The movie, "The Mysterious Monsters", is a fantastic movie! It tells the story of the phenomenon known as BIGFOOT. From the beginning of the phenomenon to the current day (As of 1975) history, this documentary movie covers all of the bases! It uses eyewitness evidence, video evidence, film evidence, footprint evidence, as well as alot of other investigative techniques, to establish that our planet is in fact home to these elusive creatures. It asks the question, "If fingerprint evidence can be used to hang someone,why can't footprint evidence be used to prove the existence of someone?" And the evidence does in fact prove that these creatures are real. This is a very interesting movie, and if and when the day comes that Bigfoot and the Loch Ness monster, who is also discussed in this movie, are proven beyond ANY doubt, this movie will make the headlines for being way ahead of it's time! It is a crime that this movie isn't available on video or DVD. It deserves to be! Check it out.

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Release Date:

July 1976 (USA) See more »

Also Known As:

Bigfoot: The Mysterious Monster See more »

Company Credits

Production Co:

Sunn Classic Pictures See more »
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Technical Specs


Sound Mix:




Aspect Ratio:

1.37 : 1
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