Guest Stars Domenique Fragale as Beth Cassini Rupert Vansittart as Lord Broughton Matt Emery as Detective Birch Mark Benton as The Colonel Andrew Havill as Douglas Broome Jack Wheatley as Nigel Blodgett George Dawson as Hague's Assistant Sylvie Briggs as Clara Alison Pargeter as Kindly Old Woman Madeleine Wilson as Lady Whisper Alex Macqueen as Mr Oldenham Finn Bennett as Pink Shirt Deborah Moore as Fancy Lady Angela Santalbano as Rosa Michael James as Teen Boy Andy Burse as Pocket Square Matt Brewer as Man Helen Bang as Elegant Lady James Coombes as Older Gentleman Rosalind Adler as Society Lady