Guest Stars Diane Fletcher as Elizabeth Urquhart Colin Jeavons as Tim Stamper Christopher Owen as McKenzie William Chubb as John Krajewski Kenneth Gilbert as Harold Earle Damien Thomas as Michael Samuels Alphonsia Emmanuel as Penny Guy Malcolm Tierney as Patrick Woolton Miles Anderson as Roger O'Neill Kenny Ireland as Ben Landless David Lyon as Henry Collingridge Isabelle Amyes as Anne Collingridge James Villiers as Charles Collingridge John Hartley as Greville Preston Richard Braine as Kevin Spence Hugh Dickson as Dr. Christian Nicholas Selby as Lord Billsborough John Arnatt as Sir Jasper Grainger Geoffrey Bateman as Interviewer Justine Francesca Glenton as PM Girl Peter Gale as Political Secretary