Guest Stars Sarah Solemani as Lizzie Dawn French as Linda Emilia Fox as Scarlett Paul Cawley as Alan Tom Basden as Noel Jordan Long as Len David Calder as Mr. Reid Chandeep Uppal as Sabrina Christina Chong as May Wu Andrew Koji as Jason Benedict Wong as Lau John Warnaby as Ian Culverson Dougray Scott as Walker Nick Moran as Stevens Charles Walker-Wise as David Diarmaid Murtagh as Blake