Guest Stars Tony Robinson as Roger Smith Richard Coleman as Chief Inspector Trusscott Beverley Walding as Receptionist Ron Donachie as Police Doctor Marcia Warren as Annie Smith Debbie Arnold as Mrs. Bingham Hywel Bennett as Harold Bingham Charles Pemberton as Police Constable Louise Beattie as Amanda Dora Bryan as Mrs. Mim John Boswall as Professor Humber Judi Spiers as Television Presenter Neale McGrath as Shop-Keeper
