John Wayne (Rock), B.A. Kirk Douglas (Eddington), Patricia Neal (Maggie), Dana Andrews (Admiral Broderick), Brandon de Wilde (Jere), Tom Tryon (Mac), Jill Haworth (Annalee), Burgess Meredith (Commander Egan Powell), Stanley Holloway (Clayton Canfil), Paula Prentiss (Bev McConnel), Henry Fonda (CINCPAC II), James Mitchum (Ensign Griggs), Patrick O'Neal (Cmdr. Neal Owynn), Slim Pickens (C.P.O Culpepper), Barbara Bouchet (Liz Eddington), George Kennedy (Col. Gregory), Carroll O'Connor (Lt. Cmdr. Burke), Larry Hagman (Lt. J.G. Cline), Bruce Cabot (Quartiermeister Quoddy)