• Cast in Order of Appearance: Jessica Raine (Lucy), Peter Capaldi (Gideon), Kim Allan (Young Sylvia), Benjamin Chivers (Isaac), Meera Syal (Dr. Ruby Bennett), Sandra Huggett (Karen Mulligan), John Alastair (Rob Shaw), Kyle Rowe (Shane Fisher), Nikesh Patel (DI Ravi Dhillon), Alex Ferns (DS Nick Holness), Caroline O'Neill (Paula Slade), Phil Dunster (Mike Stevens), Barbara Marten (Sylvia), Sidney Livingstone (Gerald Bell), Harley Broomfield (Archie), Rosie Jones (Miss Elena Rogers), Carys Gaylor (Chloe Fisher), Lunar Longhurst (Tilly Fisher), Talia Walker-Bassols (Meredith Warren), Thomas Dominique (Lee Warren), Cecilia Blair (Young Lucy), Ramanique Ahluwalia (PC Beth Courtney), Joan Hodges (Linda Jones)
• Written By: Tom Moran
• Directed By: Johnny Allan
• Memorium: In Memory of Steven Beech

• Cast in Order of Appearance: Kyle Rowe (Shane Fisher), Carys Gaylor (Chloe Fisher), Lunar Longhurst (Tilly Fisher), Jessica Raine (Lucy), Peter Capaldi (Gideon), Phil Dunster (Mike), Benjamin Chivers (Isaac), Talia Walker-Bassols (Meredith Warren), Rhiannon Harper-Rafferty (Debbie Warren), Thomas Dominique (Lee Warren), Nikesh Patel (DI Ravi Dhillon), Alex Ferns (DS Nick Holness), Muki Zubis (PC Davies), Tom Ashley (Sergeant Dorse), Rachel Denning (Head Chef), Meera Syal (Dr. Ruby Bennett), John Alastair (Rob Shaw), Zoë Aldrich (Not Our Lucy), Tom Moran (Homeless Man), Angela Bain (Cathy Martin), Harley Broomfield (Archie), Maxine Finch (Mrs. Hunt), Rosie Jones (Miss Elena Rogers), Sandra Huggett (Karen Mulligan)
• Written By: Tom Moran
• Directed By: Johnny Allan

• Cast in Order of Appearance: Rhiannon Harper-Rafferty (Debbie Warren), Talia Walker-Bassols (Meredith Warren), Thomas Dominique (Lee Warren), Jessica Raine (Lucy), Phil Dunster (Mike), Peter Capaldi (Gideon), Nikesh Patel (DI Ravi Dhillon), Alex Ferns (DS Nick Holness), Barbara Marten (Sylvia), Leona Allan (Ellen Foster), Matt Addis (Quiz Show Host), Meera Syal (Dr. Ruby Bennett), Caroline O'Neill (Paula Slade), Muki Zubis (PC Davies), Tom Ashley (Sergeant Dorse), Ramanique Ahluwalia (PC Beth Courtney), Benjamin Chivers (Isaac)
• Written By: Tom Moran
• Directed By: Johnny Allan

• Cast in Order of Appearance: Benjamin Chivers (Isaac), Jessica Raine (Lucy), Nikesh Patel (DI Ravi Dhillon), Alex Ferns (DS Nick Holness), Peter Capaldi (Gideon), John Alastair (Rob Shaw), Emily Pollet (Kate Stenner), Lily Ballantyne (Headphones), Phil Dunster (Mike), Rhiannon Harper-Rafferty (Debbie Warren), Talia Walker Bassols (Meredith Warren), Thomas Dominique (Lee Warren), Daisy Prosper (Mia Thomas), Meera Syal (Dr. Ruby Bennett), Chloe Okora (Rose Thomas), Jane McCarry (Bella Holness), Milo Quinton (Zane), Brandon Bendell (Aiden Stenner), Jimmy Walker (Mr. A)
• Written By: Tom Moran
• Directed By: Isabelle Sieb

• Cast in Order of Appearance: David Angland (Connor), Peter Capaldi (Gideon), Nikesh Patel (DI Ravi Dhillon), Patrick Regis (DCI Thomas Hatby), Benjamin Chivers (Isaac), Barbara Marten (Sylvia), Jessica Raine (Lucy), Leona Allen (Ellen Foster), Phil Dunster (Mike), Meera Syal (Dr. Ruby Bennett), Talia Walker-Bassols (Meredith), Rhiannon Harper-Rafferty (Debbie), Alexandra D'Sa (Rhia), Isabella Brownson (Kayleigh Shepherd), Mark Cox (Malcolm Shepherd), Rosie Jones (Miss Elena Rogers), Jane McCarry (Bella Holness), Alex Ferns (DS Nick Holness)
• Written By: Tom Moran
• Directed By: Isabelle Sieb

• Cast in Order of Appearance: Peter Capaldi (Gideon), Nikesh Patel (DI Ravi Dhillon), Jessica Raine (Lucy), Emma Ballantine (Moira), Stephen Ashfield (Lawrence), Kern Falconer (Vicar), Caleb Johnston-Miller (Young Gideon), Blake Johnston-Miller (Young Malcolm), Isaac Money (James), Ryan Hunter (Young Adult Gideon), Alexa Goodall (Evelyn Wiseman), Ollie Baulsom (Jonah Taylor), Brandon Bendell (Aiden Stenner), David Angland (Connor), Kyle Rowe (Shane Fisher), Kim Allan (Young Sylvia), Cecilia Blair (Young Lucy), Barbara Marten (Sylvia), Talia Walker-Bassols (Meredith Warren), Benjamin Chivers (Isaac), Thomas Dominique (Lee Warren), Rhiannon Harper-Rafferty (Debbie Warren), Phil Dunster (Mike), Ramanique Ahluwalia (PC Beth Courtney)
• Written By: Tom Moran
• Directed By: Johnny Allan