Captain Alan Thorndike
Jerry Stokes
Major Quive-Smith
Mr. Jones
Vaner
Doctor (as Ludwig Stossell)
Lady Alice Risborough
Lord Gerald Risborough
Captain Jensen
Costermonger (uncredited)
Cab Driver (uncredited)
Newsboy (uncredited)
Harbor Policeman (uncredited)
Ship's First Mate (uncredited)
Whiskers Pawnbroker (uncredited)
Adolf Hitler (uncredited)
Reeves (uncredited)
Navigator (uncredited)
Police Lieutenant (uncredited)
Policeman (uncredited)
Man on Underground Reading Paper (uncredited)
Third Sentry (uncredited)
Saul Farnsworthy (uncredited)
Bobby (uncredited)
Adolf Hitler (archive footage) (uncredited)
Piel - Saul's Law Clerk (uncredited)
German Tracker (uncredited)
German Attaché (uncredited)
Co-Pilot (uncredited)
Little Fat Man (uncredited)
Lyme Regis Postmistress (uncredited)
Major (uncredited)
Mary, the Postmistress's Daughter (uncredited)
German Pigeon Man (uncredited)
Umbrella Henchman (uncredited)
First Sentry (uncredited)
Cockney-Henchman (uncredited)
Cockney Boy (uncredited)
Second Sentry (uncredited)
Ambassador (uncredited)
Harbor Police Chief (uncredited)
Woman passerby (uncredited)