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 Alistair Petrie as Dr. Simon Mortlake Lydia Leonard as Morgan Lamb James Clay as Luke Watney Nakay Kpaka as Blythe Huddart Tahirah Sharif as Chantal Essian Holli Dempsey as Elsa Durham Chris Ryman as Shopkeeper Aaron Jolly as Ronald Clemence-Solebay Kiell Smith-Bynoe as Tony Huddart Tom Fisher as Calvin Mantus Victoria Alcock as Cindy Watney