Sid James as Sergeant Frank Wilkins

Eric Barker as Inspector Mills

Kenneth Connor as Constable Charlie Constable

Charles Hawtrey as Special Constable Timothy Gorse

Kenneth Williams as Constable Stanley Benson

Leslie Phillips as Constable Tom Potter

Joan Sims as Policewoman Gloria Passworthy

Hattie Jacques as Sergeant Laura Moon

Shirley Eaton as Sally Barry

Cyril Chamberlain as Constable Thurston

Joan Hickson as Mrs. May

Irene Handl as Willie's Mother

Terence Longdon as Herbert Hall

Jill Adams as Policewoman Harrison

Freddie Mills as Jewel Thief

Brian Oulton as Store Manager

Victor Maddern as Detective Sergeant Liddell

Joan Young as Lady Mayoress

Esma Cannon as Deaf Old Lady

Hilda Fenemore as Woman Needing a Penny

Noel Dyson as Fluff's Owner

Tom Gill as Citizen

Frank Forsyth as Citizen

John Antrobus as Citizen

Robin Ray as Assistant Manager

Michael Balfour as Matt

Diane Aubrey as Honoria

Ian Curry as Eric

Mary Law as Shop Assistant

Lucy Griffiths as Miss Horton

Eric Corrie as Citizen

Peter Bennett as Pickpocket

Jack Taylor as Cliff

Eric Boon as Shorty

Dorinda Stevens as Young Woman

Ronald Adam as Motorist (uncredited)

William Baskiville as Constable (uncredited)

Paul Beradi as Angry Citizen (uncredited)

Jeremy Connor as Little Willie (uncredited)

Tom Cubitt as Jeweller (uncredited)

Arnold Diamond as Chief Constable (voice) (uncredited)

Norman Fisher as Angry Citizen (uncredited)

Tex Fuller as Van Man (uncredited)

Colin Gordon as (uncredited)

Jack Hetherington as Tied-Up Man (uncredited)

Arthur Howell as Constable (uncredited)

Mary Jones as Radio Actress (voice) (uncredited)

Peter Kelly as Jewel Thief (uncredited)

Ken Kennedy as Wall-Eyed Man (uncredited)

Janetta Lake as Girl with Dog (uncredited)

John Langley as Boy in Cart (uncredited)

Don McMurray as Policeman (uncredited)

Guy Mills as Constable (uncredited)

Joe Phelps as Constable (uncredited)

Alfred Pim as Newsvendor (uncredited)

Fred Real as Shopper (uncredited)

Anthony Sagar as Angry Citizen (uncredited)

Bruce Seton as (uncredited)

Jack Silk as Constable (uncredited)

Charles Stanley as Newspaper Man (uncredited)

Marianne Stone as Miss Horton (voice) (uncredited)

Reg Thomason as Radio Operator (uncredited)

Frederick Treves as Radio Announcer (voice) (uncredited)

Robert Vossler as Constable (uncredited)

Kenneth J. Warren as Chauffeur (uncredited)

Margaret St. Barbe West as Shop Assistant (uncredited)

Ian Wilson as (uncredited)