Guest Stars Eiry Thomas as Greta Collinson Christian Patterson as Rhys Griffiths Ashley Thomas-Evans as Greta's Son Sam Rees as Angela's Son Ruth Madeley as Laura Tucker Verity Blyth as Bertie Paulsen Morgan Llewelyn-Jones as Griff Cook Emily May as Mia Griffiths Joely Curran as Tessa Collins Millie Davies as Ava Driscol Georgia Reed as Mel Price Lauren Jackson as Tina Edwards Samantha Spragg as Seren Collinson Owain Gunn as Mark Jones Lu Corfield as Gemma Crabbe John Macmillan as Gareth Jarvis Phylip Harries as Clerk Nicola Reynolds as Judge Victoria Derbyshire voices Radio Presenter Shireen Al-Salihi as Jury Foreman