Cast (28)

Michael Sarrazin

Peter Proud

Jennifer O'Neill

Ann Curtis

Margot Kidder

Marcia Curtis

Cornelia Sharpe

Nora Hayes

Paul Hecht

Dr. Samuel Goodman

Tony Stephano

Jeff Curtis

Norman Burton

Dr. Frederick Spear

Anne Ives

Ellen Curtis

Debralee Scott

Suzy

Steve Franken

Dr. Charles Crennis

Fred Stuthman

Pop Johnson

Lester Fletcher

Car Salesman

Paul Nevens

Room Clerk

Breanna Benjamin

Miss Hagerson

Addison Powell

Reeves

Phillip Clark

Number Five

Gene Boland

Charlie

Albert Henderson

Police Sergeant

Connie Garrison

Ellie

Sam Laws

Satan's Disciple

Mary Margaret Amato

Nurse

Terry Green

College Student

Jacqueline Manning

Lab Assistant

Henry Cosimini

Square Dance Caller

Douglas Rutherford

Club Steward

Marjorie Eaton

Astrology Lady (as Marjorie Morley Eaton)

Shelley St. Clair

Bookstore Clerk

Jon Richards

Newspaper Custodian

Crew (32)

Barbara Krieger

Set Decoration

Hal Blair

Production Manager

Jack Brown

Camera Intern

Robert De Vestel

Set Decoration

Frank P. Rosenberg

Producer

Margaret Hanly

Script Supervisor

J. Lee Thompson

Director

David 'Buck' Hall

Second Unit

Dan Wallin

Scoring Mixer

Charles A. Pratt

Executive Producer

Jerry Goldsmith

Original Music Composer

Jack Martin Smith

Production Design

Jack H. Young

Makeup Artist

John Caper Jr.

Music Editor

Max Ehrlich

Writer

Jim Danforth

Visual Effects

Michael F. Anderson

Editor

Bob O'Bradovich

Makeup Artist

Gary Daigler

Second Assistant Director

Andrew Gilmore

Production Sound Mixer

Terence Anderson

Additional Editor

Irving Lande

Casting

Ralph S. Singleton

Second Assistant Director

Mike Maggi

Makeup Artist

Bernard F. Pincus

Sound Editor

Max Ehrlich

Novel

David 'Buck' Hall

Assistant Director

John Wilkinson

Sound Re-Recording Mixer

Jack Martin Smith

Art Direction

Jim Danforth

Matte Painter

Virginia Jones

Hairstylist

Victor J. Kemper

Director of Photography