Lt. Cmdr. Barney Doyle
Glenn Ford
Lt. Archer 'Archie' Sloan
Ernest Borgnine
Lt. Burt Fisher
Paul Picerni
Dede Doyle
Kimberly Beck
Nightclub Patron
Oliver Cross
Walker
Howard Dayton
Sub Radio Operator
Sam Edwards
Lt. Paul Buckeye
Biff Elliot
Sam Baker
Al Freeman Jr.
Sub Crewman
Frank Gorshin
Norman Grabowski
Crewman Metcalf
Louis Quinn
Jane Doyle
Diane Brewster
Captain of the Bluefin
William Schallert
Al Garrity
Frank London
Hallert
Karl Lukas
Lt. Jake 'Fuzz' Foley
Dean Jones
'Hash' Benson
L.Q. Jones
Adm. Samuel Setton
Philip Ober
Cmdr. Don Adams
Richard Carlyle
Orville 'Goldy' Goldstein
Fredd Wayne
Ens. Ron Milligan
Don Keefer
Lt. Redley
Robert Hardy
Director
Joseph Pevney
Screenplay
William Wister Haines
Story
Richard Sale
Director of Photography
George J. Folsey
Producer
Edmund Grainger
Art Direction
Malcolm Brown
Editor
Gene Ruggiero
Set Decoration
Otto Siegel
Assistant Director
Robert Saunders
William A. Horning
Henry Grace