Charles Farrell
— Barry Scott
June Lang
— Christine Reisner
John Miljan
— Henri Franck
Bernadene Hayes
— Mona Brandt
J. Arthur Young
— Dr. Reisner
David Clarke
— John Brandt
Dave O'Brien
— Ralph Spencer
Charles Sargent
— American Agent
John Dilson
— Harkness
Tom Herbert
— FBI Agent
Ottola Nesmith
— Nazi Wife
Frederick Giermann
— Carl Nash
Hans von Morhart
— Fritz
Walter Bonn
— Nazi Agent
Wilhelm von Brincken
— Nazi Agent
Byron Foulger
— Motel Manager
Kurt Kreuger
— Lieutenant
John Harmon
— Henchman