Obsada:
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John Agar
Prof. Clete Ferguson
-
Lori Nelson
Helen Dobson
-
John Bromfield
Joe Hayes
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Nestor Paiva
Lucas
-
Grandon Rhodes
Jackson Foster
-
Dave Willock
Lou Gibson
-
Robert Williams
George Johnson
-
Charles Cane
Police Captain
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Loretta Agar
Woman on Boat
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Ricou Browning
The Gill Man
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Diane DeLaire
Miss Abbott, chimp trainer
-
Mike Doyle
Policjant
-
Clint Eastwood
Lab Technician
-
Jack Gargan
Skipper
-
Charles Gibb
Policjant
-
Brett Halsey
Pete, teen killed by Gill-Man
-
Don C. Harvey
Joe's Searchlight Partner
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Tom Hennesy
The Gill Man (on land) / Marineland Diver
-
Don House
Bit
-
Robert F. Hoy
Charlie
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Ned Le Fevre
Institute Worker
-
Sydney Mason
Announcer
-
Robert Nelson
Dr. McCuller
-
Bert Stevens
Man in Search Party
-
Charles Victor
Policjant
-
Bob Wehling
Joe, man with searchlight
