Richard Thorn
William Holden
Ann Thorn
Lee Grant
Pasarian
Allan Arbus
Murray
Fritz Ford
Dr Kane
Meshach Taylor
Teddy
John J. Newcombe
Butler
John Charles Burns
Colonel
Paul Cook
Jane
Diane Daniels
Teacher
Robert E. Ingham
Minister
William B. Fosser
Greenhouse Technician
Corney Morgan
Paul Buher
Robert Foxworth
Truck Driver
Russell P. Delia
Maid
Judith Dowd
Sergeant #1
Thomas O. Erhart Jr.
Pasarian's Assistant
Sorin Serene Pricopie
Tour Guide
Robert J. Jones Jr.
Jim Gardner
Rusdi Lane
Burial Priest
Charles Mountain
Young Girl
Cornelia Sanders
Dr. Fiedler
Felix Shuman
Technician #1
James Spinks
Charles Warren
Nicholas Pryor
Byron
Owen Sullivan
Security Guard
William J. Whelehan
Michael Morgan (uncredited)
Ian Hendry
Carl Bugenhagen (uncredited)
Leo McKern
Bill Atherton
Lew Ayres
Aunt Marion
Sylvia Sidney
Mark Thorn
Lucas Donat
Damien Thorn
Jonathan Scott-Taylor
Sergeant Neff
Lance Henriksen
Joan Hart
Elizabeth Shepherd
Assistant Editor
David Garfield
Original Music Composer
Jerry Goldsmith
Casting
Lynn Stalmaster
Stunt Coordinator
Max Kleven
Director of Photography
Bill Butler
Characters
David Seltzer
Camera Operator
Stanley Cortez
Director
Don Taylor
Screenplay
Mike Hodges
Stanley Mann
Producer
Harvey Bernhard
Editor
Robert Brown
Story
Associate Producer
Joseph Lenzi
Production Manager
First Assistant Director
Al Nicholson
Jerry Ballew
Second Assistant Director
Richard Luke Rothschild
Script Supervisor
H. Bud Otto
Set Decoration
Robert De Vestel
Property Master
Bill MacSems
Construction Coordinator
Hendrik Wynands
Makeup Artist
Robert Dawn
James R. Connell
Key Grip
George Hill
Gaffer
Colin J. Campbell
Production Sound Mixer
Al Overton
Sound Re-Recording Mixer
Theodore Soderberg
Paul Wells
Douglas O. Williams
Dialogue Editor
Godfrey Marks
Sound Editor
Edward Rossi
Richard Sperber
William Hartman
Music Editor
Len Engel
Willie Navarro
Underwater Camera
Al Giddings
Special Effects
Ira Anderson Jr.
Jack L. Richards
Assistant Camera
Ed Nielsen
Bob Dahlin
Makeup & Hair
Lillian Toth
Still Photographer
Don Smetzer
John D. Crededio
Robert McLain
Gilbert Taylor
Derek V. Browne
Ron Taberer
Costume Design
Burton Miller
Production Design
Philip M. Jefferies
Fred Harpman