as Group Captain J. N. H. Whitworth, D.S.O., D.F.C.
as Minor Role
as Dr. Erasmus Potter-Shine
as Sir Robert Brackenbury / Earl of Surrey
as Pemberton Grant
as Anthony
as Insp. Davis
as Sgt. Peter Burden
as Minor role
as Jim Medway
as Count Brisini
as Jack Williams
as Robert Graham
as Hans Glaser
as Mark Roper
as TV Announcer
as Maxwell Oliver
as Bruce Banning
as Duke Popplewell
as Ivan Mason / Dr. James Paxton
as Captain Jumbo Hoyle
as Joe Marsh
as Denys Royd
as Dallas Chaytor
as Peter Tanner
as Detective Inspector Minter
as Duke of Exeter / Mayor of York
as Kenneth Palmer
as Earl of Salisbury / Sir William Lucy
as Laurie Baxter
as Lord Say
as Detective Grey
as The Major
as Stephen, Author
as Gerald Ryton
as Sergeant Wilson
as John Clarron
as Laurence Mitchell
as Frank Hewitt
as Robert Douglas
as Evans
as Father Trasker
as Mr. Garstanton
as Ensor
as Walter Randell
