Vicky McClure Lana Washington Actor Warren Brown Karl Maguire Actor Cal MacAninch Inspector Robins Actor Kerry Godliman Sonya Reeves Actor Mark Stanley DI Thom Youngblood Actor Kris Hitchen John Hudson Actor Manjinder Virk DI Samira Desai Actor Ralph Ineson Commander Bregman Actor Eric Shango Danny Actor Tom Stokes Pete Actor Nadine Marshall Marianne Hamilton Actor Michael Akinsulire PS Carney Actor Ewan Mitchell Billy Washington Actor Gwynfor Jones PS Brown Actor Pippa Haywood Dr Macandrew Actor Lucy Russell Moira Actor Gavin Sibson PS Costa Actor Nabil Elouahabi Hassan Rahim Actor Tamzin Griffin Val Washington Actor Salima Saxton Ayesha Campbell-Khan Actor Gilles Bannier Director Julia Stannard Producer Daniel Brierley Writer Jennie Darnell Director Chris Roe Original Music Jed Mercurio Executive Producer Mark Redhead Executive Producer Jessica Sharkey Executive Producer