Ronald Howard
— Bob Jenson
Carol Marsh
— Kathy Riddle
Ian Fleming
— Sir Thomas Riddle
Catherina Ferraz
— Anna
Brian Nissen
— Derek
Robert Dorning
— Beckett
Stuart Saunders
— Curran
Colin Tapley
— Inspector
Kenneth Edwards
— Butler
Howard Lang
— Police Sergeant
Gordon Boyd
— Constable
Diana Chesney
— Party Woman
Graham Ashley
— Warder
George Holdcroft
— Party Guest (uncredited)
Guy Standeven
— Party Guest (uncredited)