Robert Stack
Lieut. Stanislav Sobinski
Stanley Ridges
Professor Alexander Siletsky
Charles Halton
Producer Dobosh
George Lynn
Actor-Adjutant
Henry Victor
Capt. Schultz
Halliwell Hobbes
Gen. Armstrong
Miles Mander
Major Cunningham
Rudolph Anders
Gestapo Sergeant at Desk at Top of Hotel Stairs (uncredited)
Paul Barrett
Polish RAF Pilot (uncredited)
Sven Hugo Borg
German Soldier (uncredited)
Danny Borzage
Member of Audience at Performance of Hamlet (uncredited)
Buster Brodie
Townsman (uncredited)
Peter Caldwell
Wilhelm Kunze (uncredited)
Alec Craig
Scottish Farmer Without Mustache (uncredited)
Helmut Dantine
Co-Pilot (uncredited)
Jack Deery
Member of Audience at Performance of Hamlet (uncredited)
Leslie Denison
Captain (uncredited)
James Finlayson
Scottish Farmer with Mustache (uncredited)
James Gillette
Polish RAF Pilot (uncredited)
Stuart Hall
Member of Audience at Performance of Hamlet (uncredited)
Leyland Hodgson
Second Reporter (uncredited)
Shep Houghton
German Soldier (uncredited)
Olaf Hytten
Polonius in Warsaw (uncredited)
Charles Irwin
Reporter (uncredited)
Tiny Jones
Townswoman (uncredited)
John Kellogg
Polish RAF Flyer (uncredited)
Adolf E. Licho
Prompter (uncredited)
Wilbur Mack
Member of Audience at Performance of Hamlet (uncredited)
John Meredith
English Wireless Operator (uncredited)
Maurice Murphy
Polish RAF Pilot (uncredited)
Richard Neill
Warsaw Bystander (uncredited)
Russ Powell
Warsaw Bystander (uncredited)
Frank Reicher
Polish Official (uncredited)
Otto Reichow
Co-Pilot (uncredited)
Gene Rizzi
Polish RAF Pilot (uncredited)
John Roy
Member of Audience at Performance of Hamlet (uncredited)
Hans Schumm
Special Investigations Squad (uncredited)
Stephen Soldi
Warsaw Bystander (uncredited)
Count Stefenelli
Member of Audience at Performance of Hamlet (uncredited)
Roland Varno
Pilot (uncredited)
Ernö Verebes
Stage Manager (uncredited)
Dorothy Vernon
Member of Audience at Performance of Hamlet (uncredited)
Armand 'Curly' Wright
Makeup Man (uncredited)
Wolfgang Zilzer
Man in Bookstore (uncredited)
