William Hartnell as Supt. Frawley

Betty McDowall as Kay Stock

Eddie Byrne as Sam Hare

George Mikell as Carl Stock

Michael Ripper as Lenny Lane

Victor Brooks as Sgt. Jacks

Tim Turner as Peter

Ivan Craig as Dinty

Howard Lang as George

Ian Fleming as

Sylvia Davies as Sally

Frank Forsyth as Desk Sergeant

Brian Phelan as Taffy

Michael Collins as Detective at Jackpot Club (uncredited)

Dan Cressey as Telephone Engineer (uncredited)

Garard Green as Detective Briggs (uncredited)

Charles Lamb as Snack Bar Customer (uncredited)

Stanley Meadows as Police Intelligence Officer on Radio (uncredited)

Jack Sharp as Arsenal Supporter Watching Match (uncredited)

Richard Shaw as Sam Hare's driver (uncredited)

Pauline Shepherd as (uncredited)

George Spence as Man in Tube Station (uncredited)

Robert Vossler as Policeman Arresting Hare's Driver (uncredited)

Joe Wadham as Detective (uncredited)