Guest Stars Gabrielle Green as Katrina MacKenzie Louisa Connolly-Burnham as Shannon Kelly Mark Fleishmann as Tim Jeffries Rachel Teate as Kara Shorelle Hepkin as Kay Jonathan Raggett as Jimmi Nahom Kassa as Sam Niek Versteeg as Liam Hunter Angela Lonsdale as Emma Siwan Morris as Ceri Bill Fellows as Bernie Gauri Vedhara as Miss Graham