The following information is derived from material held in the Crawford Collection:
Frederick Betts (Jack Marshall), Michelle Fawdon (Susan Morrison), Hazel Phillips (Lorna Morrison), Keith Eden (Dr Howard Morrison), John Llewellyn (Frank Powell), Tony Allyn (Danny Carter), Bruce Kilpatrick (Alan Archer), Frank Gow (Service Station Attendant), and David John (Barman).
Casting call sheets held in the Crawford Collection also show the following information:
Other actors considered for the role of Jack Marshall included Don Crosby.Other actors considered for the role of Dr Howard Morrison included Frank Wilson.
The stunt drivers were Fred Sutherland and Keith Halliwell.