Jennifer O'Neill
— Susan Manning
Robert Forster
— Dr. Desmond Moore
Ron Palillo
— Ronnie
Sydney Lassick
— Gow
William Windom
— Dr. Quilly
Greg Latter
— David
Lynne White
— Miss Donnymead
Aletta Bezuidenhout
— Isandra
Denis Smith
— Luther
Richard Allen
— Jones
Manfred Seipold
— Dr. Preisser
Frank Opperman
— Henry
Jon Maytham
— State Trooper
Shareen Swart
— Darlene
Deon Stewardson
— Alex Walper
Charles Comyn
— Train Conductor