as Self

as L'archiduc François Ferdinand

as Vedad Bey, her husband

as Lord Jerry Dansbury

as Capt. Harley

as Stephen Howard

as Inspector Bonnard

as Jack Morris

as Hugh "Bulldog" Drummond

as Pat Heston

as George Winter

as County Inspector Hanney

as Grand Duke Frederick

as Jack Sherman

as Ronald Cavendish

as Count Alexei

as Brooke

as Joe Gilbert

as Roger Hewitt