Jigsaw

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)