Terry-Thomas (Maj. Albert Rayne)
Athene Seyler (Beatrice Appleby)
Hattie Jacques (Nanette Parry)
Billie Whitelaw (Lily)
Elspeth Duxbury (Elizabeth Pinkerton)
Wensley Pithey (Superintendent)
Ron Moody (Old Porter)
Sydney Tafler (Lionel Spanager)
Clement Freud (Croupier)
Dennis Shaw (Cafe Proprietor)
Michael Peake (Thin Man)
Derek Sydney (Sinister Man)
Steven Scott (Fat Man)
Penny Morrell (Gertrude)
Joan Heal (Mrs. Dora Spanager)
May Hallatt (Old Mrs. Spanager)
Felicity Young (1st Shop Assistant)
Dorinda Stevens (Jean)
Raymond Huntley (Inspector Pape)
Freddie Frinton (Drunk)
Michael Balfour (Butler)
Noel Purcell (Burgler)
Jack Hedley (Jim Benham)
Irene Handl (Mme. Spolinski)
Kenny Williams (Honorable Fred Warrington)
Caroline Leigh (Warrington's Secretary)