U.S. spies catch a Moscow-born U.S. citizen helping spies, and they force him to counterspy.
Boris Mitrov
Bob Avery
Helen Benson
Colonel Vadja Kubelov
Frank Sanford
Bess Harris
Papa of Boris Mitrov
Gen. Nikolai Chapayev
Hans Grünwald
Otto Bergman
Tanja Rosnova
Inspector Jenkins
Narrator (voice)
