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 Adelayo Adedayo Alma Actor Famke Janssen Jessica Mallory Actor Ron Perlman Frank Napier Actor Tomiwa Edun Faisal Actor Ian Pirie Kenny Shaw Actor Daisy Waterstone Abigail Carey Actor Tianna Ellie Gregory Jaycee Actor Sophia Brown Karen Actor Dustin Demri-Burns Francis Actor Alan Williams Eddie Emery Actor Ralph Ineson DCI Alec Boyd Actor Nigel Lindsay DSI Tom Kendricks Actor Paul Ritter Marcus Levy Actor Sharon Rooney Becky Actor Miranda Heath Amina Mahdi Actor Derek Ritchie Producer Ben Chanan Writer, Director