Guest Stars Leanne Best as Kate Samuel Barnett as Ryan Edwards Alexa Davies as Kiera Isabella Laughland as China Michael Jibson as DC Paul Slaymaker Memet Ali Alabora as Sami Sak Giselle Cullinane as Barbara Denham Kris Hitchen as Tom Shaun Thomas as Paul Tim Preston as Anthony Walgate Ben Cartwright as Det Sgt Martin O'Donnell Kate Layden as Sandra Ian Puleston-Davies as Karl Turner MP Dan Linney as Front Desk Officer Michael Keogh as Dispatcher Rufus Wright as Interviewing Detective Dean Fagan as Deptford Police Officer Rachel Dale as Hull Police Officer Frankie Wilson as Barking Police Officer 1 Jakub Svec as Gabriel Kovari