- Kane Richmond
- Alan Armstrong / Spy Smasher / Jack Armstrong (archive footage)
- Marguerite Chapman
- Eve Corby
- Sam Flint
- Admiral Corby
- Hans Schumm
- The Mask
- Tristram Coffin
- Drake
- Franco Corsaro
- Capt. Pierre Durand
- Hans von Morhart
- Capt. Gerhardt
- Georges Renavent
- Gov. LeConte
- Rudolph Anders
- Col. Von Kahr
- Henry Zynda
- Ritter Lazar
- Paul Bryar
- Lawlor
- Tom London
- Crane
- Richard Bond
- Hayes
- Crane Whitley
- Dr. Hauser
- John James
- Steve
- Frank Alten
- Storm Trooper Captain
- Yakima Canutt
- Armored Car Driver
- Arvon Dale
- Thornton
- Dudley Dickerson
- Train Porter
- William Forrest
- Gerald Douglas
- Lee Phelps
- Jail Guard
- Hugh Prosser
- Flight 4 Squadron Leader
- Charles Regan
- Acme Cafe Manager
- George Sherwood
- Jailer
- Duke Taylor
- Fritz / Bat-plane Pilot / 1st Sentry at Headquarters (archive footage) (uncredited)
- Ken Terrell
- Jerry / Second HQ Sentry / First Warehouse Cop / Raygun Thug (archive footage) (uncredited)
- Sid Troy
- Gold Heavy
- Nicholas Vehr
- Dungeon Guard / Whipmaster (archive footage) (uncredited)
- Bud Wolfe
- Craig / Second Warehouse Cop / Ch. 4 Thug (archive footage) (uncredited)
- Duke York
- Henchman
- Carleton Young
- Taylor / Power Station Clerk (archive footage) (uncredited)
