Guest Stars James Grout as Chief Superintendent Strange Clare Holman as Dr Laura Hobson Oliver Grig as Lewis's Son Judy Loe as Adele Cecil Maggie Steed as Angela Storrs Roger Allam as Denis Cornford Richard Briers as Sir Clixby Bream Ben Caplan as Barman Holley Chant as Shelly Cornford Candida Gubbins as Sarah Hickman Ashley Gunstock as Porter Susan Engel as Dora Hammersby Colin McCormack as Hargreaves Nicola Jeffries as Diane Cullingham John Shrapnel as Julian Storrs Lloyd Hutchinson as DC Jackson Susan Field as Mrs Adams Julia Dalkin as Rachel James Margery Bone as Maid Nicholas Lopez as PC Dixon Jacquelyn Yorke as Amber David Fennell as Lord Lieutenant Walter McMonagle as Chief Constable Mark McGann as Geoffrey Owens