Nathaniel Parker DI Thomas Lynley Actor Sharon Small DS Barbara Havers Actor Matilda Ziegler Guest Star Nick Dunning Guest Star Richard Armitage Philip Turner Guest Star Alex Blake Guest Star Clive Merrison Guest Star Paul Hickey Guest Star Burn Gorman Billy Verger Guest Star Louise Hickson Samantha Walthew Actor Sylvestra Le Touzel Paula Marshall Actor Brian Stirner Director Julian Simpson Director, Writer Nigel Douglas Director Jeremy Silberston Director Elizabeth George Writer Simon Block Writer Peter Jukes Writer Mark Greig Writer Sally Haynes Executive Producer