 John WayneCapt. Rockwell Torrey | Capt. Rockwell Torrey |
 Kirk DouglasCommander Paul Eddington, Jr. | Commander Paul Eddington, Jr. |
 Patricia NealLt. Maggie Hayes | Lt. Maggie Hayes |
 Tom TryonMac McConnell | Mac McConnell |
 Paula PrentissBeverly McConnell | Beverly McConnell |
 Brandon De WildeEns. Jeremiah 'Jere' Torrey | Ens. Jeremiah 'Jere' Torrey |
 Jill HaworthEns. Annalee Dorne | Ens. Annalee Dorne |
 Dana AndrewsAdmiral Broderick | Admiral Broderick |
 Stanley HollowayClayton Canfil | Clayton Canfil |
 Burgess MeredithCommander Egan Powell | Commander Egan Powell |
 Barbara BouchetLiz Eddington | Liz Eddington |
 Franchot ToneCINCPAC I | CINCPAC I |
 Henry FondaCINCPAC II | CINCPAC II |
 Patrick O'NealCommander Neal Owynn | Commander Neal Owynn |
 Carroll O'ConnorLt. Commander Burke | Lt. Commander Burke |
 Slim PickensC.P.O. Culpepper | C.P.O. Culpepper |
 James MitchumEnsign Griggs | Ensign Griggs |
 George KennedyColonel Gregory | Colonel Gregory |
 Bruce CabotQuartermaster Quoddy | Quartermaster Quoddy |
 Tod AndrewsCaptain Tuthill | Captain Tuthill |
 Larry HagmanLt. J.G. Cline | Lt. J.G. Cline |
 Stewart MossEnsign Balch | Ensign Balch |
 Richard LePoreTom Agar | Tom Agar |
| CChet StrattonShip's Doctor | Ship's Doctor |
 Soo YongTearful Woman | Tearful Woman |
 Dort ClarkBoston | Boston |
| PPhil MattinglyPT Boat Skipper | PT Boat Skipper |
| YYankee ChangMortuary Clerk (uncredited) | Mortuary Clerk (uncredited) |
 Fritz FordMan at Mess Tent (uncredited) | Man at Mess Tent (uncredited) |
 Christopher GeorgeSailor (uncredited) | Sailor (uncredited) |
