Obsazení
William Bakewell
Tom Fielding
Hans Heinrich von Twardowski
Capt. Gemmler
Kenneth Harlan
Agent Brown
Robert Frazer
John Oliver
C. Montague Shaw
Franklin Prescott (uncredited)
Constance Worth
Linda Pavlo
Jack Mulhall
Chief Agent James Curtis
George Pembroke
Prof. Karl Schmidt
Michael Vallon
Argus
Willy Castello
Otto
Poppy Wilde
Restaurant Patron (uncredited)
Michael Whalen
Robert Norton
Anne Nagel
Nancy Fielding