Guest Stars Soo Drouet as Monica Eddie Marsan as Rick Grant Rosie Marcel as Dorothea Mikus Aicha Kossoko as Anaesthetist Tony Steedman as Leslie Jake Wood as Toby Grant Lucy Robinson as Margaret Laker Tom Mannion as Rob Leonard Daniel O'Brien as Police Officer Diana Fairfax as Fiona Anthony Ingram as Pub Landlord Lynsey Baker as Sarah Leonard Roger Llewellyn as Obstetrician Sammy Johnson as Greg Bailey Siobhan Nicholas as Psychiatric Registrar Josh Maguire as James Leonard