Diretor/a
Roy Ward Baker
DIRETOR/A
Elenco (na ordem dos créditos)
Margaret Lockwood
Frances Gray
Dane Clark
Bill Casey
Marius Goring
Commandant Anton Razinski
Naunton Wayne
Mr. Hedgerley
Wilfrid Hyde-White
Mr. Luke - British consul
Eugene Deckers
Alf - the 'contact'
Olaf Pooley
Detective-Interrogator
Gladys Henson
Snack Bar Attendant
Paul Hardtmuth
Priest
Michael Hordern
Owens - Lab Director
George Benson
Sandwich Stand Customer
Eric Pohlmann
Joe - the bartender
John Horsley
Customs Officer
Patric Doonan
Customs Man
Joan Haythorne
Judy
Jill Balcon
Wardress (uncredited)
Hyma Beckley
Cafe Mimosa Patron (uncredited)
John Boxer
Police Sergeant at Customs Cafe (uncredited)
Daniel Brown
Train Passenger (uncredited)
Ernest Butcher
Tom - lab assistant (uncredited)
Robert Cawdron
Soldier at Barrier During Fire (uncredited)
Anton Diffring
Officer At Station Checkpoint. (uncredited)
Toni Frost
Stewardess (uncredited)
John Gabriel
Night Field Telephone Officer (uncredited)
Charles Hammond
Train Passenger in Platform Line-up (uncredited)
Philo Hauser
Waiter (uncredited)
John G. Heller
Soldier at Station Check Point (uncredited)
Noel Johnson
Frank Conway (uncredited)
Sam Kydd
Customs Man (uncredited)
Richard Marner
Soldier on Train (uncredited)
Louis Matto
Cafe Minosa Waiter (uncredited)
Anthony Newley
Operator (uncredited)
Michael Rittermann
The 'Tail' (uncredited)
Lance Secretan
Alan (uncredited)
Dinah Sheridan
Train passenger at checkpoint (uncredited)
Ewen Solon
Enemy Scientist (uncredited)
Emile Stemmler
Soldier at Station Checkpoint (uncredited)
Robert Vossler
Day Sentry at 1st Checkpoint (uncredited)
John Wilder
Customs Officer (uncredited)
Billy Wilmot
Café Mimosa Customer (uncredited)