Gemma Whelan DS Sarah Collins Actor Tahirah Sharif PC Lizzie Adama Actor Jimmy Akingbola DC Steve Bradshaw Actor Emmett Scanlan DI Kieran Shaw Actor Lola Elsokari Farah Mehenni Actor Nick Holder PC Hadley Matthews Actor Karl Davies DCI Tim Bailie Actor Nabil Elouahabi Younes Mehenni Actor Michael Karim PC Arif Johar Actor Sally Scott Carrie Stoddard Actor Harriet Webb DC Alice Parker Actor Rex Parry Ben Stoddard Actor Joe Macaulay Custody Sergeant Actor Robin Morrissey PS Fred Thompson Actor Jim English DC Jez Vine Actor Zmira Wicking Aliya Mehenni Actor Menyee Lai Pathologist Actor Laurie Delaney Mary Shaw Actor Jim Loach Director Paul Testar Producer Patrick Harbinson Writer, Executive Producer Nainita Desai Original Music Karen Thrussell Executive Producer Damien Timmer Executive Producer