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