Himself - Narrator

Peter Graves

Acting

Himself

Peter Hurkos

Acting

Himself

William Stenberg

Acting

Himself (as Dr. Sidney Walter)

Sidney Walter

Acting

Herself

Jerilou Whelchel

Acting

Archive Footage

Roger Patterson

Acting

Self

Peter C. Byrne

Acting

Self

Grover Krantz

Acting

Loch Ness Investigator

Adrian Shine

Crew

Self

Robert W. Morgan

Acting

Self

John Green

Acting