The Mysterious Monsters (1976)
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.
Director: Robert Guenette
![]() |
Peter Graves as Himself - Narrator |
![]() |
Peter Hurkos as Himself |
![]() |
William Stenberg as Himself |
![]() |
Sidney Walter as Himself (as Dr. Sidney Walter) |
![]() |
Jerilou Whelchel as Herself |
![]() |
Roger Patterson as Archive Footage |
![]() |
Peter C. Byrne as Self |
![]() |
Grover Krantz as Self |
![]() |
Adrian Shine as Loch Ness Investigator |
![]() |
Robert W. Morgan as Self |
![]() |
John Green as Self |
| Directing | Robert Guenette | Director |
| Writing | Robert Guenette | Writer |
| Production | Charles E. Sellier Jr. | Producer |
| Camera | Tony Coggans | Director of Photography |
| Editing | Earle Herdan | Editor |
| Sound | Ruby Raksin | Original Music Composer |
| Production | James L. Conway | Associate Producer |
| Camera | Erik Daarstad | Director of Photography |
| Editing | Robert K. Lambert | Editor |
| Production | Robert Guenette | Producer |
| Production | Raylan D. Jensen | Executive Producer |
| Camera | David Myers | Director of Photography |
| Production | Peter Wood | Production Assistant |