Lady Edith de Haviland
Charles Hayward
Sophia de Haviland
Brenda Leonides
Chief Inspector Taverner
Josephine Leonides
Philip Leonides
Magda Leonides
Roger Leonides
Clemency Leonides
Eustace Leonides
Laurence Brown
Nanny
Sergeant Glover
Miss Ackroyd
Mr Gaitskill
Iannois Agrodopolous
Aristide Leonides
Roger Leonides' Secretary
Brent
Constable
Coroner
Cigarette girl
Cairo Spymaster
Club Singer
Club Band
Dancer (uncredited)