
Peter van Eyck
Georg Droste
Acting

Marianne Koch
Nora Gulden
Acting

Macdonald Carey
Mr. Smith
Acting

Christopher Lee
Baron Ferdi von Staub
Acting

Billie Whitelaw
Piroska Maslov
Acting

Albert Lieven
Inspector Huebling
Acting

David Knight
Father Zombary
Acting

Marius Goring
General Greenhahn
Acting

Helen Cherry
Countess Carla Cosimano
Acting

Colin Gordon
Count Dezsepalvy
Acting

Niall MacGinnis
Paul Vass
Acting

Peter Vaughan
Chief of Hungarian Police
Acting

Michael Brennan
Horvat
Acting

Jeremy Bulloch
Johnny Droste
Acting
![Bart Bastable]()
Bart Bastable
Cattle Truck Driver (uncredited)
Acting
![Charles Byrne]()
Charles Byrne
Vazlan (uncredited)
Acting

Christopher Casson
Headmaster (uncredited)
Acting
![John Cowley]()
John Cowley
Funnel-Shaped Man
Acting
![Adrian Cronon]()
Adrian Cronon
Young Priest (uncredited)
Acting
![Vincent Dowling]()
Vincent Dowling
Father Farcosc (uncredited)
Acting

Walter Gotell
Dr. Ritter (uncredited)
Acting
![Peadar Lamb]()
Peadar Lamb
Muller (uncredited)
Acting
![Robert Lepler]()
Robert Lepler
Head Waiter (uncredited)
Acting
![Jeffrey O'Kelly]()
Jeffrey O'Kelly
Spy (uncredited)
Writing

Norman Rodway
Machine Gunner at Border (uncredited)
Acting