Devon
Keir Dullea
Garth
Robin Ward
Jeremiah
Sterling Hayden
The Priest
Dominic Hogan
The Captain
Michael Kirby
Shalith
Barry Morse
The Deputy
George Naklowyck
Rachel's Mother
Aileen Seaton
Jubal
George Sperdakos
Rachel's Father
Sean Sullivan
Rachel
Gay Rowan
Computer / Host
William Osler
Garth's Father
James Barron
The Governor
John Colicos
Old Abraham
Gillie Fenwick
Small Boy
Scott Fisher
The Guard
Paul Geary
Garth's Mother
Kay Hawtrey
Writer
Ursula K. Le Guin
Harlan Ellison
Director
Harvey Hart
Martin Lager