Discover
Olivia Hussey
Jess
Keir Dullea
Peter
Margot Kidder
Barb
John Saxon
Lt. Fuller
Marian Waldman
Mrs. Mac
Andrea Martin
Phyl
James Edmond
Mr. Harrison
Doug McGrath
Sargeant Nash
Art Hindle
Chris
Lynne Griffin
Clare
Michael Rapport
Patrick
Leslie Carlson
Graham
Martha Gibson
Mrs. Quaife
John Rutter
Laughing Detective
Robert Warner
Doctor
Sydney Brown
Farmer
Jack Van Evera
Search Party
Les Rubie
Search Party
Marcia Diamond
Woman
Pam Barney
Jean
Robert Hawkins
Wes
David Clement
Cogan
Dave Mann
Cop
Danny Gain
Cop
Tom Foreman
Cop
Bob Clark
Prowler Shadow / Phone Voice (uncredited)
Nick Mancuso
The Prowler / Phone Voice (uncredited)
Ann Sweeny
Phone Voice (voice) (uncredited)
Art
Karen Bromley
Art Direction
Camera
Reginald H. Morris
Director of Photography
Costume & Make-Up
Kathy Southern
Assistant Makeup Artist
Bill Morgan
Makeup Artist
David R. Beecroft
Hairstylist
Directing
Bob Clark
Director
Don Brough
Third Assistant Director
Tony Thatcher
Assistant Director
John M. Eckert
Second Assistant Director
Sandra Marley
Script Supervisor
Production
Bob Clark
Producer
Findlay Quinn
Executive Producer
Gerry Arbeid
Co-Producer
David M. Robertson
Production Supervisor
Richard Schouten
Associate Producer
Sound
Carl Zittrer
Original Music Composer
Kenneth Heeley-Ray
Sound Editor
Charles Owens
Assistant Sound Editor
Patrick Drummond
Assistant Sound Editor
Bill O’Neill
Sound Mixer
Rod Haykin
Sound
David Appleby
Sound Mixer
Writing
Roy Moore
Screenplay