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