Jack Warner

Character: Det. Insp. Fred Fellows

Yolande Donlan

Character: Jean Sherman

Michael Goodliffe

Character: Clyde Burchard

John Le Mesurier

Character: Mr Simpson

John Barron

Character: Ray Tenby

Moira Redmond

Character: Joan Simpson

Christine Bocca

Character: Mrs Simpson

Brian Oulton

Character: Restlin

Ray Barrett

Character: Sgt Gorman

Norman Chappell

Character: Andy Roach

Joan Newell

Character: Mrs Banks

Ronald Lewis

Character: Det. Sgt. Jim Wilks

Peter Ashmore

Character: Mr. Bunnell (uncredited)

Timothy Bateson

Character: Porter (uncredited)

Geoffrey Bayldon

Character: Constable at Murder Scene (uncredited)

Basil Beale

Character: Police Clerk (uncredited)

Gerald Campion

Character: Glazier (uncredited)

Reginald Marsh

Character: Hilders (uncredited)

Fred Ferris

Character: Information Sergeant (uncredited)

John Horsley

Character: Supt. Ramsey (uncredited)

Clifford Earl

Character: 2nd Press Man (uncredited)

Charles Houston

Character: Garage Foreman (uncredited)

Julie Samuel

Character: Lois (uncredited)

Robert Raglan

Character: Chief Constable (uncredited)

Graham Skidmore

Character: 1st Press Man (uncredited)

Kevin Stoney

Character: Mr. Gardner (uncredited)

Charles Lamb

Character: Mr. Peck (uncredited)

Marianne Stone

Character: Secretary (uncredited)

Geoffrey Russell

Character: Chief Superintendent (uncredited)

Mike Moyer

Character: Driver PC Harris (uncredited)

Michael McStay

Character: Police Operator (uncredited)

Graham Payn

Character: Mr. Blake (uncredited)