John Gilling Director Andre Morell Walter Venable Actor Barbara Shelley Beth Venable Actor William Lucas Jacob Venable Actor Freda Jackson Clara Actor Conrad Phillips Michael Latimer Actor Richard Warner Edgar Venable Actor Vanda Godsell Louise Venable Actor Alan Wheatley Inspector Rowles Actor George Baxt Screenwriter Jon Penington Producer Arthur Grant Cinematographer John Pomeroy Film Editing Mikis Theodorakis Original Music Bernard Robinson Production Design Don Mingaye Art Director Stuart Lyons Casting