The Mysterious Monsters poster
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The Mysterious Monsters

6.219761h 26mGMovieDocumentaryHorrorFantasy

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,…

DirectorRobert Guenette
WriterRobert Guenette
ProducersCharles E. Sellier Jr.·Robert Guenette

Where to watch

Not available in United Kingdom
Streaming in 2 other countries

The Mysterious Monsters isn't on any streaming service in United Kingdom right now, but it's available in Canada, United States. Streaming rights are licensed per country.

Cast · Directed by Robert Guenette

PGPeter Graves
Peter Graves
Himself - Narrator
PH
Peter Hurkos
Himself
WS
William Stenberg
Himself
SW
Sidney Walter
Himself (as Dr. Sidney Walter)
JW
Jerilou Whelchel
Herself
RPRoger Patterson
Roger Patterson
Archive Footage
PB
Peter C. Byrne
Self
GK
Grover Krantz
Self
AS
Adrian Shine
Loch Ness Investigator
RM
Robert W. Morgan
Self
JG
John Green
Self

More from Peter Graves · Lead actor

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Cold Case
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1984 · 7.5
The Alfred Hitchcock Hour
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1962 · 7.9
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More from Robert Guenette · Director

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1981 · 6.9
The Flintstones' 25th Anniversary Celebration
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1986 · 7.4
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1971
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1981 · 6.8
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1976 · 8.0
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1985 · 7.5
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The Mysterious Monsters — streaming FAQ

Which OTT platform streams The Mysterious Monsters?

The Mysterious Monsters isn't on any streaming service in United Kingdom yet, but it's available in Canada and United States. Streaming rights differ by country — switch your country in the header to see where.

Is The Mysterious Monsters on Netflix?

No, The Mysterious Monsters is not on Netflix in United Kingdom as of September 2026.

Is The Mysterious Monsters on Amazon Prime Video?

No, The Mysterious Monsters isn't on Amazon Prime Video in United Kingdom right now.

Where can I watch The Mysterious Monsters for free?

The Mysterious Monsters isn't streaming in United Kingdom yet, so there's no way to watch it free at the moment.