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