The Mysterious Monsters 1976

Synopsis:

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.

Directed by: Robert Guenette
Written by: Robert Guenette
Release date: 1976-07-01
Runtime: 86 minutes
Tagline: PROOF! There are giant creatures living at the edge of our civilisation.
Cast:
Peter Graves
Peter Graves
Himself - Narrator 
Peter Hurkos
Peter Hurkos
Himself 
William Stenberg
William Stenberg
Himself 
Sidney Walter
Sidney Walter
Himself (as Dr. Sidney Walter) 
Jerilou Whelchel
Jerilou Whelchel
Herself 
Roger Patterson
Roger Patterson
Archive Footage