Guest Stars Gary Oliver as Derek Sands Stewart Scudamore as Yannis Canakis Tolga Safer as Michael Canakis Howard Ward as Paul Aimes Katie Donnison as Penny Barnard Ben Cartwright as Joe Sheldon Brendan Mackey as Alex Graves Charlotte Avery as Sue Sheldon Alexis Gregory as Dean Barnard James Scott-Russell as Rob Prentice Allan Roy as Surgeon