Guest Stars Anthony Calf as Deputy Assistant Commissioner Robert Strickland Susan Jameson as Esther Lane Carolyn Allen as Carole Paula Jennings as Paula Standing Hannah Waterman as Emily Driscoll David Troughton as Ricky Hanson Joe Absolom as Luke Hanson Kevin Whately as Andrew Simson Karl Johnson as Gary Kendal Emily Corrie as Lysette Perry Felicity Dean as Rosanne Midgley Martin Hutson as Nigel Midgley Michael Thomas as Victor Pritchard