Guest Stars Talia Walker-Bassols as Meredith Warren Phil Dunster as Mike Stevens Rosie Jones as Miss Elena Rogers Ramanique Ahluwalia as PC Beth Courtney Kyle Rowe as Shane Fisher Kim Allan as Young Sylvia Brandon Bendell as Aiden Stenner Cecilia Blair as Young Lucy Tom Ashley as Sergeant Dorse David Angland as Connor Larson Steven Blades as Bull Joel Harper-Jackson as Adult Isaac Jessica Ellerby as Sharon Laura Marcus as Teenage Lucy Tom Moran as Barman Hayley-Marie Axe as Estella Jackson Olivia Bennett as Tess Isaac Vincent-Norgate as Joshua Paul Castleman as Harold Slade Chloe Malarkey as Nurse
