الإعلان التشويقي
طاقم التمثيل
Rex Reason
Dr. Thomas Morgan
Jeff Morrow
Dr. William Barton
Leigh Snowden
Marcia Barton
David McMahon
Capt. Stanley
Frank Chase
Steward
Ricou Browning
The Gill Man (in water)(uncredited)
Don Megowan
The Gill Man (on land)(uncredited)
Gregg Palmer
Jed Grant
Maurice Manson
Dr. Borg
James Rawley
Dr. Johnson
Paul Fierro
Morteno
Lillian Molieri
Mrs. Morteno
George Sowards
Ranch Hand (uncredited)