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)
Brett Halsey
Pete (uncredited)
John Agar
Prof. Clete Ferguson
Don C. Harvey
Mac - Spotlight Party Leader (uncredited)
Diane DeLaire
Miss Abbott (uncredited)
Ricou Browning
The Gill Man (in water) / Lab Technician (uncredited)
Robert B. Williams
George Johnson
Bill Baldwin
Patrol Boat Dispatcher (voice / uncredited)
John Bromfield
Joe Hayes
Dave Willock
Lou Gibson
Lori Nelson
Helen Dobson
Robert F. Hoy
Charlie (uncredited)
Charles Cane
Police Captain
Nestor Paiva
Captain Lucas
Jack Gargan
Skipper (uncredited)
Loretta Agar
Woman on Boat (uncredited)
Grandon Rhodes
Jackson Foster
Jere Beery
Photographer (uncredited)
Mike Doyle
Cop (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
Bert Stevens
Search Party Member (uncredited)
Charles Victor
Policeman (uncredited)
Robert Wehling
Joe (uncredited)

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