Calificación
Reparto

Keir Dullea
Devon

Robin Ward
Garth

Gay Rowan
Rachel

William Osler
Computer / Host

James Barron
Garth's Father

John Colicos
The Governor

Gillie Fenwick
Old Abraham

Scott Fisher
Small Boy

Paul Geary
The Guard

Kay Hawtrey
Garth's Mother

Sterling Hayden
Jeremiah

Dominic Hogan
The Priest

Michael Kirby
The Captain

Barry Morse
Shalith

George Naklowyck
The Deputy

Aileen Seaton
Rachel's Mother