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