Holliday Grainger DI Rachel Carey Actor Ben Miles Danny Hart Actor Cavan Clerkin DS Patrick Flynn Actor Ginny Holder DS Nadia Latif Actor Nigel Lindsay DSI Tom Kendricks Actor Paapa Essiedu Isaac Turner Actor Lia Williams DSU Gemma Garland Actor Rob Yang Yan Wanglei Actor Killian Scott Actor Indira Varma Actor Ron Perlman Actor Hugh Quarshie Actor Andrew Buchan Actor Andy Nyman Actor Amanda Drew Actor Isabella Brownson Actor Tessa Wong Actor Joe Dempsie Actor Kenneth Collard Actor Linus Roache Actor Jonathan Aris Actor Mark Field Actor Beruce Khan Actor Barry Calvert Actor Alastair Natkiel Actor Leah MacRae Actor Johann Heske Actor Gary Pillai Actor Ilia Volok Actor Ivan Ivashkin Actor Lavrentii Tarasevych Actor Natalie Dew Actor Kathryn McGarr Actor Derek Ritchie Producer, Executive Producer Ben Chanan Writer, Executive Producer David Heyman Executive Producer Rosie Alison Executive Producer Sue Gibbs Executive Producer Tom Coan Executive Producer