"When college professor, Peter Proud begins experiencing flashbacks of an earlier life, he's mysteriously drawn to a place he's never been to, but which seems familiar and where he soon finds his previous incarnation's wife."
Michael Sarrazin
as Peter Proud
Jennifer O'Neill
as Ann Curtis
Margot Kidder
as Marcia Curtis
Cornelia Sharpe
as Nora Hayes
Paul Hecht
as Dr. Samuel Goodman
Tony Stephano
as Jeff Curtis
Norman Burton
as Dr. Frederick Spear
Anne Ives
as Ellen Curtis
Debralee Scott
as Suzy
Steve Franken
as Dr. Charles Crennis
Fred Stuthman
as Pop Johnson
Lester Fletcher
as Car Salesman
Paul Nevens
as Room Clerk
Breanna Benjamin
as Miss Hagerson
Addison Powell
as Reeves
Phillip Clark
as Number Five
Gene Boland
as Charlie
Albert Henderson
as Police Sergeant
Connie Garrison
as Ellie
Sam Laws
as Satan's Disciple
Mary Margaret Amato
as Nurse
Terry Green
as College Student
Jacqueline Manning
as Lab Assistant
Henry Cosimini
as Square Dance Caller
Douglas Rutherford
as Club Steward
Marjorie Eaton
as Astrology Lady (as Marjorie Morley Eaton)
Shelley St. Clair
as Bookstore Clerk
Jon Richards
as Newspaper Custodian
Charles A. Pratt
Executive Producer
John Caper Jr.
Music Editor
Frank P. Rosenberg
Producer
Margaret Hanly
Script Supervisor
Barbara Krieger
Set Decoration
David 'Buck' Hall
Second Unit
Dan Wallin
Scoring Mixer
Robert De Vestel
Hal Blair
Production Manager
Max Ehrlich
Writer
Jack Brown
Camera Intern
J. Lee Thompson
Director
Jack H. Young
Makeup Artist
Jerry Goldsmith
Original Music Composer
Jack Martin Smith
Production Design
Jim Danforth
Visual Effects
Art Direction
Bob O'Bradovich
Gary Daigler
Second Assistant Director
Novel
Ralph S. Singleton
John Wilkinson
Sound Re-Recording Mixer
Terence Anderson
Additional Editor
Andrew Gilmore
Production Sound Mixer
Irving Lande
Casting
Michael F. Anderson
Editor
Assistant Director
Mike Maggi
Matte Painter
Bernard F. Pincus
Sound Editor
Virginia Jones
Hairstylist
Victor J. Kemper
Director of Photography