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