Guest Stars Anthony Calf as Deputy Assistant Commissioner Robert Strickland Susan Jameson as Esther Lane Sheila Hancock as Grace Pullman Adrian Rawlins as Daniel Newley June Whitfield as Pru Sanders Gwyneth Strong as Kim Newley Norman Eshley as Billy Pierce Steve Speirs as Dougie Taylor Belinda Sinclair as Fiona Fielding Chris Casserly as Simon Hall Mark Tandy as Colin Meadows Sophie Holden as Kelly Meadows Geoffrey Bayldon as Leonard Case