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