John Wayne
Capt. Rockwell Torrey

Kirk Douglas
Commander Paul Eddington, Jr.

Patricia Neal
Lt. Maggie Hayes

Tom Tryon
Mac McConnell

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

Franchot Tone
CINCPAC I

Henry Fonda
CINCPAC II

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

Stewart Moss
Ensign Balch

Richard LePore
Tom Agar

Soo Yong
Tearful Woman

Dort Clark
Boston

Hal Needham
Airman in the Blue Lagoon (uncredited)