Jack Warner

Det. Insp. Fred Fellows

Yolande Donlan

Jean Sherman

Michael Goodliffe

Clyde Burchard

John Le Mesurier

Mr Simpson

John Barron

Ray Tenby

Moira Redmond

Joan Simpson

Christine Bocca

Mrs Simpson

Brian Oulton

Restlin

Ray Barrett

Sgt Gorman

Norman Chappell

Andy Roach

Joan Newell

Mrs Banks

Ronald Lewis

Det. Sgt. Jim Wilks

Peter Ashmore

Mr. Bunnell (uncredited)

Timothy Bateson

Porter (uncredited)

Geoffrey Bayldon

Constable at Murder Scene (uncredited)

Basil Beale

Police Clerk (uncredited)

Gerald Campion

Glazier (uncredited)

Reginald Marsh

Hilders (uncredited)

Fred Ferris

Information Sergeant (uncredited)

John Horsley

Supt. Ramsey (uncredited)

Clifford Earl

2nd Press Man (uncredited)

Charles Houston

Garage Foreman (uncredited)

Julie Samuel

Lois (uncredited)

Robert Raglan

Chief Constable (uncredited)

Graham Skidmore

1st Press Man (uncredited)

Kevin Stoney

Mr. Gardner (uncredited)

Charles Lamb

Mr. Peck (uncredited)

Marianne Stone

Secretary (uncredited)

Geoffrey Russell

Chief Superintendent (uncredited)

Mike Moyer

Driver PC Harris (uncredited)

Michael McStay

Police Operator (uncredited)

Graham Payn

Mr. Blake (uncredited)