Guest Stars Elyes Gabel as Umar Sanjeev Bhaskar as Abdul Aziz Amy Wren as Shannon Kelly Madeline Duggan as Amy Chester Thusita Jayasundera as DS Ayesha Masood Juliet Cowan as Claire Kelly Sam Troughton as DI Johnny Vickers 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