Cast
Naunton Wayne
Mr. Hedgerley
George Benson
Sandwich Stand Customer
Philo Hauser
Waiter (uncredited)
Anthony Newley
Operator (uncredited)
Paul Hardtmuth
Priest
Michael Hordern
Lab Director Owens
John Gabriel
Night Field Telephone Officer (uncredited)
Ewen Solon
Enemy Scientist (uncredited)
Emile Stemmler
Soldier at Station Checkpoint (uncredited)
Eric Pohlmann
Joe - the bartender
Richard Marner
Soldier on Train (uncredited)
Margaret Lockwood
Frances Gray
Gladys Henson
Attendant
Patric Doonan
Customs Man
Wilfrid Hyde-White
Mr. Luke
Ernest Butcher
Tom - Lab Assistant (uncredited)
Anton Diffring
Officer at Station (uncredited)
Dinah Sheridan
Train Passenger at Checkpoint (uncredited)
Dane Clark
Bill Casey
Olaf Pooley
Detective-Interrogator
Sam Kydd
Customs Man (uncredited)
Eugene Deckers
Alf
John Horsley
Customs Officer
Jill Balcon
Wardress (uncredited)
John G. Heller
Soldier at Station Check Point (uncredited)
Marius Goring
Commandant Anton Razinski