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