Cast
Donald Wolfit
Dr. Lomond
Norman Wooland
Inspector Bliss
Walter Fitzgerald
Commissioner
Dora Bryan
Mrs. Hackett
John Slater
Bell
Edward Chapman
Stranger
Herbert Lom
Maurice Meister
Mai Zetterling
Lisa
Greta Gynt
Cora Ann Milton
William Hartnell
Sam Hackett
Denholm Elliott
John Lemley
Campbell Singer
Station Sergeant Carter
Charles Victor
Inspector Wembury
John Stuart
Gardener