Henry Herbert Director Donald Pleasence Malachi Actor David Bradley Barty Actor Veronica Quilligan Mally Actor Peter Vaughan Mr. Gunliffe Actor Lillias Walker Mrs. Gunliffe Actor Arthur English Jack Combes Actor John Barrett Polwarth Actor Alan Hockey Dr Petherick Actor George Malpas Mr. Eliot Actor Meg Wynn Owen Mally's mother Actor Peter Wyatt Mr. Carew Actor David Foxxe Solicitor's Clerk Actor Derek Carpenter Doctor's Assistant Actor Andrew Sinclair Producer Kent Walwin Producer