Alan Armstrong / Spy Smasher / Jack Armstrong
Eve Corby
Admiral Corby
The Mask
Capt. Pierre Durand
Capt. Gerhardt
Gov. LeConte
Col. Von Kahr
Ritter Lazar
Lawlor
Crane
Hayes
Dr. Hauser
Steve
Storm Trooper Captain (uncredited)
Train Porter (uncredited)
Armored Car Driver (uncredited)
Gerald Douglas (uncredited)
Thornton (uncredited)