Colonel Gimpy
Peter Lorre
Ace Martin
Brian Donlevy
Alfred Knuxton
Oscar Apfel
Daniel D. Harrington
Paul Stanton
Major White
Howard Hickman
Office Worker (uncredited)
Lynn Bari
Secretary (uncredited)
Madge Bellamy
Bunky, Office Boy (uncredited)
William Benedict
Ruth Franklin
Helen Wood
John R. Flemyng
Ralph Morgan
Joe Randall
Thomas Beck
Mrs. Fleming
Kay Linaker
Sidney Grant
Lester Matthews
Operative #30
Earle Foxe
Operative #77
J. Carrol Naish
Operative #16
Gloria Roy
Director
Malcolm St. Clair
Writer
Charles Kenyon
Sam Mintz
Director of Photography
Barney McGill