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

Brian Oulton

Restlin

Ray Barrett

Sgt Gorman

Ronald Lewis

Det. Sgt. Jim Wilks

Timothy Bateson

Porter (uncredited)

Geoffrey Bayldon

Constable at Murder Scene (uncredited)

Gerald Campion

Glazier (uncredited)

Reginald Marsh

Hilders (uncredited)

John Horsley

Supt. Ramsey (uncredited)

Clifford Earl

2nd Press Man (uncredited)

Kevin Stoney

Mr. Gardner (uncredited)

Marianne Stone

Secretary (uncredited)

Mike Moyer

Driver PC Harris (uncredited)