Guest Stars Anthony Calf as Deputy Assistant Commissioner Robert Strickland Susan Jameson as Esther Lane Natalie Forbes as Jayne Carolyn Allen as Carole Heather James as Alison David Troughton as Ricky Hanson John Sessions as Dr. Finlay McKenzie Noma Dumezweni as Sophie Oyekambi Lynda Bellingham as DS Karen Hardwick Nick Haverson as Norman Marian McLoughlin as Shirley White MEREDITH BRAUN as Nyreen Mark Womack as Ray Monkton Simon Dutton as Duncan Freedman
