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