Tyrone PowerLt. Ward Stewart Dana AndrewsLt. Cdr. Dewey Connors James GleasonChief Mike 'Mac' McDonnell Ben CarterOliver Cromwell Jones Stanley AndrewsShipwrecked Captain (uncredited) John ArcherCurly Bowman (uncredited) Gene RizziSeaman Rizzi (uncredited) Frederic BrunnQ Boat Lieutenant (uncredited) Fred AldrichGerman Seaman Brooks BenedictAngry Man at Hotel Registration Desk Lulu Mae BohrmanUndetermined Secondary Role Paul E. BurnsSimmons - Desk Clerk Gene CollinsBoy in Lifeboat James ConatyHotel Desk Clerk Frank DawsonHenry the Butler Edward EarleWreckage Victim Thurston HallSenator from Texas Sally HarperTeenage Student Kathleen HowardMiss Bromley Florence LakeDoris - Jean's Roommate Trudy MarshallTelephone Operator Leila McIntyreSenator's Wife Malcolm 'Bud' McTaggartSailor James MetcalfUndetermined Secondary Role Hans MoebusGerman Officer Edmund MortimerMan at Hotel Registration Desk John MylongCaptain of Submarine Otto ReichowGerman Signalman Lionel RoyceGerman Q-Boat Commander Charles TannenSeaman Hammond Sigfrid TorGerman Soldier Nicholas VehrRussian Officer Hans von MorhartY Gun Operator Minor WatsonAdm. Bob Stewart William Yetter Sr.Tanker Lieutenant Darryl F. ZanuckExecutive Producer Thomas LittleSet Decoration Paul S. FoxSet Decoration Wiard B. IhnenArt Direction Leon ShamroyDirector Of Photography 
