Charlie Drake
— Percy Pointer
Derek Nimmo
— Tony
Wanda Ventham
— Kathy
John Le Mesurier
— Jocelyn Macauley
Anthony Nicholls
— Casey
Noel Dyson
— Mrs. Gorman
John Hewer
— Townsend
Anthony Gardner
— Claude Crepe
Ronald Radd
— Publicity Man
John Laurie
— Scotsman
Colin Douglas
— Policeman
Annette Andre
— Muriel
Justine Lord
— Lady Dorothea
George Baker
— Lord Edward
Joyce Blair
— Lady Dorothea - At First
Una Stubbs
— Lady Dorothea - Later
Lyn Ashley
— Maid
Nicole Shelby
— Fiona
Gina Warwick
— Ellen
Percy Herbert
— Inspector Greet
Desmond Roberts
— Manservant
Pauline Chamberlain
— Woman in Theatre Audience (uncredited)
Carol Cleveland
— Girl at Theatre Party (uncredited)
Sally Douglas
— Glamorous Girl at Theatre Party (uncredited)
Barbara French
— Girl at Theatre Party (uncredited)
Caron Gardner
— Girl at Theatre Party (uncredited)
Victor Harrington
— Theatre Audience (uncredited)
Juba Kennerley
— Theatre Audience (uncredited)
Valerie Leon
— Girl at Theatre Party (uncredited)
Harry Locke
— (uncredited)