Guest Stars Mark Bonnar as Colin Osborne Lorraine Ashbourne as DI Tessa Nixon Nigel Lindsay as Tony Kelsey Adeel Akhtar as Hassan Mahmoud Badria Timimi as Sara Mahmoud Rosie Cavaliero as Marion Kelsey Charlie Condou as Simon Will Brown as Jason Walker Amy Jayne as Flo Josef Altin as Tyler Bryony Hannah as Cath Douglas Hodge as Paul Nixon Daniel Gosling as David Walker Mohammed Amiri as Ali Mahmoud Alan Asaad as Yousef Mahmoud Nathalie Armin as DSI Kuldip Gill Katherine Jakeways as Nicola Munir Khairdin as Omar Dominique Drew as Becca Nixon Amir Mime as Ahmed Mahmoud Hannah Traylen as Jasmine Shaheen Khan as GP Kathleen Fraser as School Secretary Teresa Churcher as Estate Agent Alistair Kirton as Jason's Boss Linal Haft as Jacob Rose Sirine Saba as Samir Khan