Peter Sellers
Pearly Gates
Lionel Jeffries
Inspector Fred 'Nosey' Parker
Bernard Cribbins
Nervous O'Toole
Nanette Newman
Valerie
Davy Kaye
Trainer King
Bill Kerr
Jack Coombes
Ed Devereaux
Bluey May
Reg Lye
Reg Denton
John Le Mesurier
Assistant Commissioner
Graham Stark
Sid Cooper
Martin Boddey
Superintendent J.S. Forest
Irene Browne
Dowager
Arthur Mullard
Brassknuckles
Marianne Stone
Woman at Meeting
Tutte Lemkow
Siggy Schmoltz
Michael Caine
Police Officer (uncredited)