Peter Sellers as Pearly Gates

Lionel Jeffries as Inspector Fred 'Nosey' Parker

Bernard Cribbins as Nervous O'Toole

Nanette Newman as Valerie

Davy Kaye as Trainer King

Bill Kerr as Jack Coombes

Ed Devereaux as Bluey May

Reg Lye as Reg Denton

John Le Mesurier as Assistant Commissioner

Graham Stark as Sid Cooper

Martin Boddey as Superintendent J.S. Forest

Irene Browne as Dowager

Arthur Mullard as Brassknuckles

Tutte Lemkow as Siggy Schmoltz

Dermot Kelly as Misery Martin

Vanda Godsell as Annette

Barry Keegan as Alf

Marianne Stone as Woman at Meeting (uncredited)

Michael Caine as Police Officer (uncredited)

Dennis Price as Educated Ernest (uncredited)

Dick Emery as Adulterous Man (uncredited)

John Junkin as Maurice (uncredited)

Cardew Robinson as Postman (uncredited)

Mario Fabrizi as Van Driver (uncredited)

John Harvey as Sergeant at Police Station (uncredited)

Harold Siddons as Police Constable in Garage (uncredited)

Jack Silk as Police Constable at Station (uncredited)

Deryck Guyler as Police Constable at Scotland Yard (uncredited)

Gerald Sim as Airport Official (uncredited)