David Gulpilil
as Black Boy
Jenny Agutter
as Girl
Lucien John
as White Boy
John Meillon
as Man
Robert McDara
as Man
John Illingsworth
as Young Man
Hilary Bamberger
as Woman
Pete Carver
as No Hoper
Barry Donnelly
as Australian Scientist
Noelene Brown
as German Scientist
Carlo Manchini
as Italian Scientist