Guest Stars Jane Wymark as Joyce Barnaby Barry Jackson as Dr. George Bullard Laura Howard as Cully Barnaby Alwyne Taylor as Dr. Catherine "Kath" Bullard Annabelle Apsion as Ellen Barker Ronan Vibert as Giles Armitage Peter Capaldi as Laurence Barker Michael Fitzgerald as Francis Crawford Sara Stewart as Carolyn Armitage Patrick Drury as Connor Simpson John Cording as Sam Judd Scott Handy as Stephen Latimer John Shrapnel as Leo Clarke
