Guest Stars Elyes Gabel as Umar Sanjeev Bhaskar as Abdul Aziz Madeline Duggan as Amy Chester Amy Wren as Shannon Kelly Thusita Jayasundera as DS Ayesha Masood Sam Troughton as DI Johnny Vickers Juliet Cowan as Claire Kelly Faraz Ayub as Fawad Naveed Choudhry as Kamran Glenn Doherty as Kevin Thompson Georgia Bourke as Lauren Ashwin Bolar as Salman Chloé-may Cuthill as Hannah Tony Jayawardena as Younis Lee Nicholas Harris as Prison Officer Emma Amos as Trudie Lizzie Roper as Sandra Chizzy Akudolu as Nurse Sue Kelvin as Cheryl Dear Joseph Long as Costas Anil Goutam as Older man Sarah Lowe as Witness