Anthony Hopkins
Philip Calvert
Robert Morley
Uncle Arthur
Jack Hawkins
Sir Anthony Skouras
Maurice Roëves
Lt. Williams - Helicopter Pilot
Leon Collins
Tim Hutchinson
Wendy Allnutt
Sue Kirkside
Charlie Stewart
Sgt. Macdonald
Bill Brandon
Thug (uncredited)
Harry Fielder
Thug on Boat (uncredited)
Martin Grace
Thug (uncredited)
Charles Gray
Sir Anthony Skouras (voice) (uncredited)
Prentis Hancock
Agent (uncredited)
Barrie Hesketh
Seaman (uncredited)
Bill Hibbert
Thug (uncredited)
George Leech
Thug (uncredited)