Sir Ralph Skelton
Duncan
Grigory Orlov
Michael Cornforth
Police Inspector Gunter (as Griffiths Jones)
Jeff Martin
Narcy
Sir Humphrey Maltravers
Robert Ainsworth
Rapson
Father De Gruyte
Capt. Bill Hamilton
David MacIver
Dr. Paul Martin
Sandy Duncan
Robert
Caryl Sanger
Jake Winter
James Brodie
John Fenton
Charles Kent
Lord Alban
Stephen Guest
David Fry
Jackson
Chebutikin
Paul Beaumont
Gerald
Foreign Secretary
Marquis Brown
Jimmy Dale
Jackson Delacorte
Group Capt. Todd
Sir Jeremy
James Martin
Danny Martin
Long John Silver
Mark
Aegeon
Harry
Guy Harding
Baines
Lars Seelman
Hintze
Mr. Gryffyd
Dr. Bellamy
Sir George Davies
Bryan Hodge
Lord Risingham
Hintze (uncredited)
George Berry