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