John Wayne
Capt. Rockwell Torrey
Kirk Douglas
Commander Paul Eddington, Jr.
Patricia Neal
Lt. Maggie Hayes
Paula Prentiss
Beverly McConnell
Brandon De Wilde
Ens. Jeremiah 'Jere' Torrey
Jill Haworth
Ens. Annalee Dorne
Dana Andrews
Admiral Broderick
Stanley Holloway
Clayton Canfil
Burgess Meredith
Commander Egan Powell
Barbara Bouchet
Liz Eddington
Patrick O'Neal
Commander Neal Owynn
Carroll O'Connor
Lt. Commander Burke
Slim Pickens
C.P.O. Culpepper
James Mitchum
Ensign Griggs
George Kennedy
Colonel Gregory
Bruce Cabot
Quartermaster Quoddy
Tod Andrews
Captain Tuthill
Larry Hagman
Lt. J.G. Cline
Chet Stratton
Ship's Doctor
Hal Needham
Airman in the Blue Lagoon (uncredited)