William Eythe character Bill Dietrich
Lloyd Nolan character Agent George A. Briggs
Signe Hasso character Elsa Gebhardt
Gene Lockhart character Charles Ogden Roper
Leo G. Carroll character Col. Hammersohn
Lydia St. Clair character Johanna Schmidt
William Post Jr. character Walker
Harry Bellaver character Max Cobura
Reed Hadley character Narrator (voice) (uncredited)
