Kadro (27)
Robert NewtonCapt. David Grant
Raymond LovellPaul Faber
Guy MiddletonCapt. Tony Hunter
Muriel PavlowMarion Decker
Herbert LomKeitelJohn RuddockBowman
Martin MillerProfessor Hansen
Brenda BruceLily LeggettGerald CaseInspector Emerson
Scott ForbesLieut. Allen (as Julian Dallas)
Leslie DwyerGeorge Leggett
Valentine DyallSir George BellDerek ElphinstoneNaval Surgeon
Bruce GordonHood
Marius GoringFrederick JanningsGeorge HirsteStation OfficialHubert LeslieTicket Collector
Olga LindoMrs. ColemanStuart LindsellInspector Martin
Gordon McLeodInspector Longhurst
Joan MaudeSidney VaneLawrence O'MaddenCaptain Robert Wilson
Hay PetrieStation Master
Wilfrid Hyde-WhiteTaxi Driver
Howard DouglasHotel Porter (uncredited)Johnnie SchofieldFactory Watchman (uncredited)
John StoneYoung Newlywed (uncredited)