Horror Sci-Fi
In a tributary of the Amazon, a monster – half-man, half-fish – is captured and placed in a reservoir in a Florida national park to be observed by scientists.
Directed by
Jack Arnold
Clint Eastwood
Jennings (uncredited)
John Agar
Prof. Clete Ferguson
Bill Baldwin
Patrol Boat Dispatcher (voice / uncredited)
Dave Willock
Lou Gibson
Nestor Paiva
Captain Lucas
Brett Halsey
Pete (uncredited)
Robert B. Williams
George Johnson
Lori Nelson
Helen Dobson
Grandon Rhodes
Jackson Foster
Don C. Harvey
Mac - Spotlight Party Leader (uncredited)
Charles Cane
Police Captain
Bert Stevens
Search Party Member (uncredited)
Robert F. Hoy
Charlie (uncredited)
John Bromfield
Joe Hayes
Diane DeLaire
Miss Abbott (uncredited)
Loretta Agar
Woman on Boat (uncredited)
Jere Beery
Photographer (uncredited)
Ricou Browning
The Gill Man (in water) / Lab Technician (uncredited)
Mike Doyle
Cop (uncredited)
Jack Gargan
Skipper (uncredited)
Charles Gibb
Cop (uncredited)
Tom Hennesy
The Gill Man (on land) / Marineland Diver (uncredited)
Don House
Diver (uncredited)
Ned Le Fevre
Newscaster (uncredited)
Sydney Mason
Police Announcer (uncredited)
Patricia Powers
Girl in Convertible
Charles Victor
Policeman (uncredited)
Robert Wehling
Joe (uncredited)

Your rating