Robert Newton
Capt. David Grant
Raymond Lovell
Paul Faber
Guy Middleton
Capt. Tony Hunter
Muriel Pavlow
Marion Decker
Herbert Lom
Keitel
John Ruddock
Bowman
Martin Miller
Professor Hansen
Brenda Bruce
Lily Leggett
Gerald Case
Inspector Emerson
Scott Forbes
Lieut. Allen (as Julian Dallas)
Leslie Dwyer
George Leggett
Valentine Dyall
Sir George Bell
Derek Elphinstone
Naval Surgeon
Bruce Gordon
Hood
Marius Goring
Frederick Jannings
George Hirste
Station Official
Hubert Leslie
Ticket Collector
Olga Lindo
Mrs. Coleman
Stuart Lindsell
Inspector Martin
Gordon McLeod
Inspector Longhurst
Joan Maude
Sidney Vane
Lawrence O'Madden
Captain Robert Wilson
Hay Petrie
Station Master
Wilfrid Hyde-White
Taxi Driver
Howard Douglas
Hotel Porter (uncredited)
Johnnie Schofield
Factory Watchman (uncredited)
John Stone
Young Newlywed (uncredited)