Guest Stars Caroline O'Neill as Win Thursday Abigail Thaw as Dorothea Frazil Sara Vickers as Joan Thursday Lynda Rooke as Gwen Morse Sonya Cassidy as Joyce Morse Kelly Adams as Cynthia Riley Jamie Glover as Dr. Ian Kern Alan Williams as Cyril Morse Chris Barnes as Albert Gudgeon Poppy Miller as Millicent Coke Norris Paul Venables as Prof. Alistair Coke Norris John Hollingworth as Taxi Driver Richard Hawley as Morris Cubitt Edmund Kingsley as Mark Carlisle Louise Dylan as Judy Vallens Marilyn O'Brien as Prue Carter Nick Court as Vince Kasper Lloyd McGuire as Charlie Ayres Clive Wood as Vic Kasper Guy Williams as Jolyon Frobisher Uncredited Colin Dexter as Don at Booth Hill Debate