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

Tutte Lemkow

Siggy Schmoltz

Vanda Godsell

Annette

Marianne Stone

Woman at Meeting (uncredited)

Michael Caine

Police Officer (uncredited)

Dennis Price

Educated Ernest (uncredited)

Dick Emery

Adulterous Man (uncredited)

John Junkin

Maurice (uncredited)

Cardew Robinson

Postman (uncredited)

Mario Fabrizi

Van Driver (uncredited)

John Harvey

Sergeant at Police Station (uncredited)

Deryck Guyler

Police Constable at Scotland Yard (uncredited)

Gerald Sim

Airport Official (uncredited)