Paapa Essiedu Stephen Actor Siobhan Cullen Lisa Actor Jack Bannon Dave Actor Charlotte Riley Amanda Actor Nadine Marshall Patty Actor Amy Trigg Rachel Actor Simona Brown Bella Actor Nia Anisah Erin Actor Rosie Gray Susie Actor Carla Freeman Kimberley Actor Elizabeth Rider Jenny Actor Ryan McKen Matt Actor Sarah Ridgeway Nicola Actor Jay Simpson Ralph Actor Simon Bubb Will Actor Victoria Blunt Ellen Actor Roxy Faridany Sonographer 5 Actor Gary Beadle Kevin Actor Gary Lilburn Alan Actor George Potts Father Michael Actor Stefan Golaszewski Executive Producer, Director Ruth Kenley-Letts Executive Producer Richard Laxton Executive Producer Neil Blair Executive Producer Lyndsay Robinson Producer Kelly Duffell Producer