Herbert Lom
Maurice Meister
Donald Wolfit
Dr. Lomond
Mai Zetterling
Lisa
Greta Gynt
Cora Ann Milton
William Hartnell
Sam Hackett
Norman Wooland
Inspector Bliss
Denholm Elliott
John Lemley
Walter Fitzgerald
Commissioner
Dora Bryan
Mrs. Hackett
Campbell Singer
Station Sergeant Carter
Charles Victor
Inspector Wembury
John Stuart
Gardener
John Slater
Bell
Edward Chapman
Stranger
Crew
Guy Hamilton
Director
Edgar Wallace
Theatre Play
Val Valentine
Screenplay
Bert Bates
Editor
Edward Scaife
Director of Photography
Malcolm Arnold
Original Music Composer
Ken Ritchie
Boom Operator
Eileen Bates
Hairdresser
Robert Day
Camera Operator
Gerry Fisher
Assistant Camera
Muir Mathieson
Music Director
Lesley Storm
Additional Dialogue
John Wilcox
Additional Photography
Hugh Perceval
Associate Producer
Joseph Bato
Set Designer
William Hutchinson
Set Designer
Pamela Davies
Continuity
Jack Swinburne
Production Manager
John Cox
Sound Supervisor
Buster Ambler
Sound Recordist
Red Law
Sound Recordist
George Partleton
Makeup Artist
Ivy Baker
Wardrobe Supervisor