Guest Stars India Ria Amarteifio as Nora Randall Lewis Reeves as Curtis Saunders Cherrelle Skeete as Bryony Cummings Marianne Oldham as Jane Colter Amy Cudden as Sarah McLean Hannah Tointon as Rachel Saunders Mark Dexter as Stewart McLean Georgia Thorne as Hannah Moran Indica Watson as Evie Stone Adiel Magaji as Nathan Blake Dexter Ansell as David Saunders Natalia Harris as Lily-Grace Phillips Jiyan Kaur Deol as Sunny Chohhan Jude Muir as Joe Saunders Laura Doddington as DS Mayes Marshall K. Hawkes as Connor Colter Kimia Lamour as Olive Randall Caroline Ginty as Carol Etta Edwards as Ellie Melissa Lowe as Ward 300 Nurse