Guest Stars Sam Stockman as DC Emerson Kent Claire Rushbrook as Dr. Caroline Llewellyn Ben Bishop as DC Finley Mansell Hannah Walters as DC Megan Riley Lydia Leonard as Morgan Lamb Alistair Petrie as Dr. Simon Mortlake James Clay as Luke Watney Nakay Kpaka as Blythe Huddart Kiell Smith-Bynoe as Tony Huddart Tahirah Sharif as Chantal Essian Chris Ryman as Shopkeeper Holli Dempsey as Elsa Durham Aaron Jolly as Ronald Clemence-Solebay Victoria Alcock as Cindy Watney Tom Fisher as Calvin Mantus