Earl Schenck

as George Hazelhurst

as Norton (uncredited)

as Professor Nichols (uncredited)

as Forbes

as Col. Hendricks (uncredited)

as Grant Elliot

as Jonas

as John Aldous

as Emperor Maximilian - Prologue

as Rodolfo Emanon

as Colonel Rathbone

as Commissionnaire Desmard

as Blais

as Narraboth, Captain of the Guard

as Harlan Carr

as Clarence Hyle

as Alec Langley

as Joeffrey Vandermuellen

as John Wilmot

as Professor Fullerton

as Lionel Brooks

as The Brother

as Dick Moreland

as Lieutenant Ober

as Robert Busch / Crown Prince

as Alexander Vernon

as Crown Prince

as Crown Prince of Germany

as Emanuel Müller

as George Pratt

as Robert Haskell