Holliday Grainger DI Rachel Carey Actor Callum Turner Shaun Emery Actor Ben Miles Danny Hart Actor Lia Williams DSU Gemma Garland Actor Laura Haddock Hannah Roberts Actor Barry Ward Charlie Hall Actor Ginny Holder DS Nadia Latif Actor Cavan Clerkin DS Patrick Flynn Actor Ralph Ineson DCI Alec Boyd Actor Nigel Lindsay Tom Kendricks Actor Paul Ritter Marcus Levy Actor Ron Perlman Frank Napier Actor Tommy McDonnell Mat Forester Actor Alexander Forsyth Eli Jacobi Actor Sophia Brown Karen Actor Dustin Demri-Burns Francis Actor Tianna Ellie Gregory Jaycee Actor Derek Siow Andy Sim Actor Ben Chanan Writer, Director Derek Ritchie Producer