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 Tom Ashley as Sergeant Dorse Kim Allan as Young Sylvia Brandon Bendell as Aiden Stenner Cecilia Blair as Young Lucy David Angland as Connor Larson Steven Blades as Bull Joel Harper-Jackson as Adult Isaac Laura Marcus as Teenage Lucy Tom Moran as Barman Jessica Ellerby as Sharon Isaac Vincent-Norgate as Joshua Hayley-Marie Axe as Estella Jackson Olivia Bennett as Tess Paul Castleman as Harold Slade Chloe Malarkey as Nurse
