Margaret Lockwood
Frances Gray
Acting
Dane Clark
Bill Casey
Acting
Marius Goring
Commandant Anton Razinski
Acting
Naunton Wayne
Mr. Hedgerley
Acting
Wilfrid Hyde-White
Mr. Luke
Acting
Eugene Deckers
Alf
Acting
Olaf Pooley
Detective-Interrogator
Acting
Gladys Henson
Attendant
Acting
Paul Hardtmuth
Priest
Acting
Michael Hordern
Lab Director Owens
Acting
George Benson
Sandwich Stand Customer
Acting
Eric Pohlmann
Joe - the bartender
Acting
John Horsley
Customs Officer
Acting
Patric Doonan
Customs Man
Acting
Joan Haythorne
Judy
Acting
Jill Balcon
Wardress (uncredited)
Acting
Hyma Beckley
Café Mimosa Patron (uncredited)
Acting
John Boxer
Police Sergeant at Customs Café (uncredited)
Acting
Ernest Butcher
Tom - Lab Assistant (uncredited)
Acting
Daniel Brown
Train Passenger (uncredited)
Acting
Robert Cawdron
Soldier at Station Checkpoint (uncredited)
Acting
Anton Diffring
Officer at Station (uncredited)
Acting
Toni Frost
Stewardess (uncredited)
Acting
John Gabriel
Night Field Telephone Officer (uncredited)
Acting
Charles Hammon
Train Passenger in Platform Line-up (uncredited)
Acting
Philo Hauser
Waiter (uncredited)
Acting
John G. Heller
Soldier at Station Check Point (uncredited)
Acting
Noel Johnson
Frank Conway (uncredited)
Acting
Sam Kydd
Customs Man (uncredited)
Acting
Richard Marner
Soldier on Train (uncredited)
Acting
Louis Matto
Café Mimosa Waiter (uncredited)
Acting
Anthony Newley
Operator (uncredited)
Acting
Michael Ritterman
The ‘Tail’ (uncredited)
Acting
Lance Secretan
Alan (uncredited)
Acting
Dinah Sheridan
Train Passenger at Checkpoint (uncredited)
Acting
Ewen Solon
Enemy Scientist (uncredited)
Acting
Emile Stemmler
Soldier at Station Checkpoint (uncredited)
Acting
Robert Vossler
Day Sentry at First Checkpoint (uncredited)
Acting
John Wilder
Customs Officer (uncredited)
Acting
Billy Wilmot
Café Mimosa Customer (uncredited)
Acting