Cast
Jeffrey Hunter
Captain Bill Ranson
Annemarie Düringer
Rolande Hertog
Nigel Patrick
Major Julien Howard
David Kossoff
Dr. Mulder
N/A
Rolf Lefebvre
Hans Faber, chief spy
N/A
Larry Burns
Martins, building porter-spy
N/A
Anthony Ostrer
N/A
Claude Kingston
Willem Mulder
N/A
Robert Raglan
Lt. Miller
N/A
Peter Prouse
Sgt. Bill Parrish
Philip Bond
Piet van Wijt
N/A
Otto Diamant
Mr. Hendrijk
