Alan Armstrong / Jack Armstrong
Kane Richmond
Eve Corby
Marguerite Chapman
Lawlor
Paul Bryar
Crane
Tom London
Hayes
Richard Bond
Hauser
Crane Whitley
Steve
John James
Train Porter (uncredited)
Dudley Dickerson
Thornton (uncredited)
William Forrest
Armored Car Driver (uncredited)
Yakima Canutt
Arvon Dale
Admiral Corby
Sam Flint
The Mask
Hans Schumm
Drake
Tris Coffin
Captain Pierre Durand
Franco Corsaro
Captain Gerhardt
Hans von Morhart
Governor LeComte
Georges Renavent
Col. Von Kohr
Rudolph Anders
Ritter Lazar
Henry Zynda
Stunts
Carey Loftin
David Sharpe
Buddy Roosevelt
Director
William Witney
Editor
Tony Martinelli
Screenplay
Joseph F. Poland
Special Effects
Theodore Lydecker
Bert LeBaron
Ronald Davidson
Sound Recordist
Charles L. Lootens
Jerry Jerome
Tommy Coats
John Daheim
James Fawcett
Joseph O'Donnell
William Lively
Producer
William J. O'Sullivan
Makeup Artist
Bob Mark
Edward Todd
Daniel J. Bloomberg
Duke Green
Norman S. Hall
Howard Lydecker
Bud Wolfe
Sid Troy
Duke Taylor
Cy Slocum
Charles Regan
Loren Riebe
Tom Steele
Bill Wilkens
Director of Photography
Reggie Lanning
Original Music Composer
Mort Glickman
Ken Terrell