Peter Cushing
Detective Inspector Quennell
Peter Cushing
Detective Inspector Quennell
Robert Flemyng
Dr. Carl Mallinger
Wanda Ventham
Clare Mallinger
Glynn Edwards
Sgt. Allan
Kevin Stoney
Granger the Butler
Vanessa Howard
Meg Quennell
David Griffin
William Warrender
Roy Hudd
Morgue Attendant
William Wilde
Frederick Britewell
Simon Cain
Clem Withers
Russell Napier
Landlord
John Paul
Mr. Warrender
Leslie Anderson
Coachman Joe Trager
David Lyell
Student with Toy Spider
Drew Russell
Constable Smith
Robert Cawdron
Chief Constable
Kenneth Colley
James
Roy Evans
2nd Porter
Vernon Sewell
Director
Peter Bryan
Screenplay
Paul Ferris
Original Music Composer
Wilfred Woods
Art Direction
Freddie Vale
Casting
Henry Montsash
Hairdresser
Ricky Coward
Production Manager
Roger Dicken
Special Effects
Marie Feldwick
Wardrobe Designer
Paul Ferris
Conductor
Arnold L. Miller
Producer
Tony Tenser
Executive Producer
Stanley A. Long
Director of Photography
Howard Lanning
Editor
Rosemarie McDonald Peattie
Makeup Artist
George Pollard
Assistant Director
Eve Wilson
Continuity
Pat O'Donnell
Production Secretary
Norman Jones
Camera Operator
Jim Alloway
Focus Puller
Alan Hogben
Sound Mixer
Mike Tucker
Boom Operator
Len Harvey
Construction Manager
Freda Pearson
Set Dresser