Norman Wisdom
Norman Pitkin / Giulio Napolitani
Jennifer Jayne
Rosanna Guardia
Raymond Huntley
Sir Ronald Ackroyd
David Lodge
Inspector Hobson
Esma Cannon
Mrs. Timms
Eric Barker
Police Doctor
Eleanor Summerfield
Sergeant Lucilla Wilkins
Ronnie Stevens
Oberon
Terence Alexander
Chief Superintendent Bert Belcher
Maurice Kaufmann
Vince
George Pastell
Manzini
Jack Watson
Police Sergeant
Campbell Singer
Bollington
Lionel Murton
Man on Underground Train
Robert Rietti
Italian Lawyer
Marjie Lawrence
Crying Lady
Jean Aubrey
Lady Hinchingford
Monte Landis
Mr. Bassett
Mario Fabrizi
Newspaper Seller
Alfred Burke
Trigger O'Flynn
John Blythe
Chauffeur (uncredited)
Cyril Chamberlain
Café Proprietor (uncredited)
Eve Eden
Woman at Hairdressers (uncredited)
Fred Griffiths
Cabbie (uncredited)
Tutte Lemkow
Billposter (uncredited)
Anita Sharp-Bolster
Woman at Hairdressers (uncredited)
Valerie Van Ost
Woman at Hairdressers (uncredited)
Wanda Ventham
Outraged Hairdressers Customer (uncredited)
Alister Williamson
Detective (uncredited)