Richard Attenborough
— Ted Peters
Sheila Sim
— Joy Goodall
Barry Jones
— E. J. Gregory
Barry K. Barnes
— Paul Baker
Judy Kelly
— Toni Masters
John Warwick
— Det. Insp. Carter
Garry Marsh
— Det. Sgt. Murray
Diana Dors
— Annette
Bill Owen
— Dave Robinson
Cyril Chamberlain
— Henchman "Sniffy"
Peter Croft
— Johnny, bartender-henchman
Danny Green
— Henchman Sid
Norman Shelley
— Stage Door Keeper (uncredited)
Bartlett Mullins
— Club Barman (uncredited)
Patricia Dainton
— Pam (unconfirmed)
Dirk Bogarde
— Policeman (uncredited)
Joy Harington
— Friendly Barmaid (uncredited)
John Salew
— Pogson
Johnnie Schofield
— Fred (uncredited)
Harry Terry
— Man Outside Taxi Garage (uncredited)
Dennis Wyndham
— Sam (uncredited)
Jon Pertwee
— Police Constable (uncredited)