On screen
Cast
15 credited performers
Bernard Lee
Det. Supt. Meredith
Alexander Knox
Colonel Calderwood
Moira Redmond
Diana Marsh
William Russell
Mike Stafford
Richard Vernon
John Crewe
Richard Warner
Mark Speller
John Gabriel
Monet
Artwork unavailable
Jack Rodney
Gregory
Artwork unavailable
Stanley Morgan
Det. Sgt. Anson
Artwork unavailable
Robert Percival
Mr. Britton
Artwork unavailable
Ann Harriman
Receptionist
Artwork unavailable
Julie Shearing
Judy
Artwork unavailable
Fanny Carby
Mrs. Wall
Artwork unavailable
Ian Hamilton
Waiter
Walter Horsbrugh
Registrar