Guest Stars Mark Dexter as Timothy Gray Steven Robertson as Malcolm Crowley Ed Birch as Harry Michael Gould as Deputy Commissioner Wainwright Jocelyn Macnab as Claire Elliot Kerley as Sam Anastasia Hille as Angela Simon Williams as Cavendish Matthew Cullum as Constable Barry John Lightbody as Sergeant George Thomasin Rand as Mary Joanna Brookes as Mrs. Cross Simon Sherlock as DCI Compton Co Starring Kieran Bew as Clerk on Train Angela Curran as Woman
