Guest Stars Anthony Calf as Deputy Assistant Commissioner Robert Strickland Susan Jameson as Esther Lane Jane Asher as Lady Deeley Amelia Curtis as Vicky Lawless Timothy West as Professor Reynard Mears Co Starring Eileen McCallum as Mae McCloud Graham Pountney as David Hendry Kay Stonham as Sheena Luke de Lacey as Michael Megson Roy Sampson as Alec McCloud