Glenn Ford
Lt. Cmdr. Barney Doyle
Ernest Borgnine
Lt. Archer 'Archie' Sloan
Diane Brewster
Jane Doyle
Dean Jones
Lt. Jake 'Fuzz' Foley
L.Q. Jones
'Hash' Benson
Philip Ober
Adm. Samuel Setton
Richard Carlyle
Cmdr. Don Adams
Fredd Wayne
Orville 'Goldy' Goldstein
Don Keefer
Ens. Ron Milligan
Robert Hardy
Lt. Redley
Paul Picerni
Lt. Burt Fisher
Kimberly Beck
Dede Doyle
Oliver Cross
Nightclub Patron
Howard Dayton
Walker
Sam Edwards
Sub Radio Operator
Biff Elliot
Lt. Paul Buckeye
Al Freeman Jr.
Sam Baker
Frank Gorshin
Sub Crewman
Norman Grabowski
Sub Crewman
Louis Quinn
Crewman Metcalf
William Schallert
Captain of the Bluefin
Frank London
Al Garrity
Karl Lukas
Hallert