as Narraboth, Captain of the Guard
as George Hazelhurst
as Norton (uncredited)
as Professor Nichols (uncredited)
as Col. Hendricks (uncredited)
as Colonel Rathbone
as Clarence Hyle
as Emanuel Müller
as Commissionnaire Desmard
as Blais
as The Brother
as Joeffrey Vandermuellen
as Alexander Vernon
as Alec Langley
as Lieutenant Ober
as Harlan Carr
as Crown Prince of Germany
as George Pratt
as Robert Busch / Crown Prince
as Robert Haskell
as Emperor Maximilian - Prologue
as Professor Fullerton
as Lionel Brooks
