Guest Stars Thomas Craig as Fenton Russell Bertie Carvel as Alexander Wentworth Mark Powley as Mark Venn David Michaels as Brian Worsley Lisa Kay as Lauren Venn Peter Guinness as Jason Styles Mark Flitton as Paul Hillman Benjamin Smith as Matt Rupert Simonian as Michael Venn Christov Ruhn as Mezwar Tanzir Paul Ritter as Stevie Quirke Andrew Bicknell as General Sir Adrian Henderson Audrey Looten as Jennifer Moscati Michael Winder as Kevin Gaunt Sharlene Whyte as Lisa Merrick Deborah Sheridan-Taylor as Rebekkah Stone