Roger Moore (Rod Slater), Susannah York (Terry Steyner), Ray Milland (Hurry H. 'Pops' Hirschfeld), Bradford Dillman (Manfred Steyner), Sir John Gielgud (Farrell), Tony Beckley (Stephen Marais), Simon Sabela (Big King), Marc Smith (Tex Kiernan), John Gielgud (Farrell), John Hussey (Plummer), Bernard Horsfall (Dave Kowalski), Bill Brewer (Aristide), Norman Coombes (Frank Lemmer), George Jackson (Mine Doctor), Ken Hare (Jackson), Ralph Loubser (Mine Captain), Denis Smith (Radio Commentator), Paddy Norval (Daniele, Girl in Bar), Garth Tuckett (Miner), Albert Raphael (Miner), Lloyd Lilford (Miner), Alan S. Craig (Miner), John Kingley (Miner), Carl Duering (Syndicate Member), Paul Hansard (Syndicate Member), André Maranne (Syndicate Member)