This 1976 Royal Shakespeare Company production of Macbeth was originally broadcast on Thames Television in 1978. The companys artistic director Trevor Dunn directs the cast on a small bare stage with mostly black costumes & minimal props. After the witches (Susan Dury, Judith Harte, Marie Kean) announce the prophecy that Macbeth (Ian Mc Kellen) will be the next king, the elderly King Duncan (Griffith Jones) proclaims that his son, Malcolm (Roger Rees), will be heir to the throne. Lady Macbeth