Guest Stars Ed Stoppard as James Embleton Cal MacAninch as David Loader Richard Johnson as Sir William Embleton David Westhead as DI Bob Cherry Wayne Foskett as Brian Blackburn Mark Womack as Tom Hancock James Burrows as Derren Blackburn 2013 Adie Allen as Stella Hancock Teresa Banham as Alison Ryder Velile Tshabalala as Kristen Tim Preece as George Ryder Anna Jaskolka as Agency Nurse Jake Arrowsmith as Peter Hancock Josef Altin as Colin Connor Pasha Bocarie as Dr. Sanjeev Jumani Kevin McGowan as Company Commander