• Cast in Order of Appearance: Emily Berrington (Niska), Bella Dayne (Astrid), Raphael Acloque (Ten), Katherine Parkinson (Laura Hawkins), Theo Stevenson (Toby Hawkins), Lucy Carless (Mattie Hawkins), Tom Goodman-Hill (Joe Hawkins), Pixie Davies (Sophie Hawkins), Gemma Chan (Mia), Sam Palladio (Ed), Sonya Cassidy (Hester), Lauren Carse (Rowan), Josie Lawrence (Barbara), Ivanno Jeremiah (Max), Colin Morgan (Leo Elster), Claudia Harrison (Dr. Aveling), Anthony Flanagan (Jansen), Ian Burfield (Gavin), Carrie-Anne Moss (Dr. Athena Morrow), Callum Adams (Engineer), Chloe Wicks (V), Marshall Allman (Milo Khoury), Sam Woolf (Artie)
• Written By: Jonathan Brackley & Sam Vincent
• Directed By: Lewis Arnold

• Cast in Order of Appearance: Pixie Davies (Sophie Hawkins), Emily Berrington (Niska), Theo Stevenson (Toby Hawkins), Lucy Carless (Mattie Hawkins), Katherine Parkinson (Laura Hawkins), Tom Goodman-Hill (Joe Hawkins), Gemma Chan (Mia), Sam Palladio (Ed), Ruth Bradley (Detective Inspector Karen Voss), Neil Maskell (Detective Inspector Pete Drummond), Carrie-Anne Moss (Dr. Athena Morrow), Chloe Wicks (V), Marshall Allman (Milo Khoury), Sonya Cassidy (Hester), Anthony Flanagan (Jansen), Ivanno Jeremiah (Max), Colin Morgan (Leo Elster), Thusitha Jayasundera (Neha Patel QC), Tom Morley (Lab Synth), Eric Kofi Abrefa (Danny), Anastasia Hille (Diane), Teresa Churcher (Bank Worker), Mark Roper (Recycling Centre Employee), Will Tudor (Odi), Kieran Urquhart (Charlie), Letitia Wright (Renie), Josie Lawrence (Barbara), William Andrews (Scientist 1)
• Written By: Jonathan Brackley & Sam Vincent
• Directed By: Lewis Arnold

• Cast in Order of Appearance: Sophie Matthew (Ginny), Carrie-Anne Moss (Dr. Athena Morrow), Tim Ahern (Gil), Katherine Parkinson (Laura Hawkins), Tom Goodman-Hill (Joe Hawkins), Lucy Carless (Mattie Hawkins), Will Tudor (Odi), Emily Berrington (Niska), Aidan McArdle (Peter Keeley), Thusitha Jayasundera (Neha Patel QC), Gemma Chan (Mia), Ivanno Jeremiah (Max), Sonya Cassidy (Hester), Colin Morgan (Leo Elster), Ian Burfield (Gavin), Letitia Wright (Renie), Theo Stevenson (Toby Hawkins), Ruth Bradley (Detective Inspector Karen Voss), Nathalie Armin (Tabitha), Neil Maskell (Detective Sergeant Pete Drummond), Sam Palladio (Ed), Bella Dayne (Astrid), Cosmo Jarvis (Martin), Danny Webb (Hobb), Pixie Davies (Sophie Hawkins), Eric Kofi Abrefa (Danny), Claudia Harrison (Dr. Aveling), Chloe Wicks (V)
• Written By: Charlie Covell & Iain Weatherby
• Directed By: Carl Tibbetts

• Cast in Order of Appearance: Sonya Cassidy (Hester), Ivanno Jeremiah (Max), Colin Morgan (Leo Elster), Nathalie Armin (Tabitha), Ruth Bradley (Detective Inspector Karen Voss), Neil Maskell (Detective Sergeant Pete Drummond), Sam Palladio (Ed), Gemma Chan (Mia), Pixie Davies (Sophie Hawkins), Finlay Robertson (Dr. Rose), Katherine Parkinson (Laura Hawkins), Tom Goodman-Hill (Joe Hawkins), Will Tudor (Odi), Alex Waldmann (Care Home Worker), Carrie-Anne Moss (Dr. Athena Morrow), Chloe Wicks (V), Thusitha Jayasundera (Neha Patel QC), Emily Berrington (Niska), Bella Dayne (Astrid), Anastasia Hille (Diane), Anna Skellern (Emma Harris), Eric Kofi Abrefa (Danny), Theo Stevenson (Toby Hawkins), Letitia Wright (Renie), Justin Salinger (Connor), Lucy Carless (Mattie Hawkins), Ian Burfield (Gavin), Marshall Allman (Milo Khoury), Matthew Ovens (Utility Synth)
• Written By: Joe Barton
• Directed By: Carl Tibbetts

• Cast in Order of Appearance: Ritu Arya (Flash), Amy Athwal-Kirby (Harmeet), Oliver Bodur (Arvinder), Ivanno Jeremiah (Max), Gemma Chan (Mia), Sam Palladio (Ed), Eric Kofi Abrefa (Danny), Lucy Carless (Mattie Hawkins), Katherine Parkinson (Laura Hawkins), Tom Goodman-Hill (Joe Hawkins), Theo Stevenson (Toby Hawkins), Pixie Davies (Sophie Hawkins), Nathalie Armin (Tabitha), Matthew Ovens (Utillity Synth), Will Tudor (Odi), Sonya Cassidy (Hester), Colin Morgan (Leo Elster), Carrie-Anne Moss (Dr. Athena Morrow), Chloe Wicks (V), Tim Ahern (Gil), Claudia Harrison (Dr. Aveling), Emily Berrington (Niska), Thusitha Jayasundera (Neha Patel QC), Ruth Bradley (Detective Inspector Karen Voss), Neil Maskell (Detective Sergeant Pete Drummond), Letitia Wright (Renie), Justin Salinger (Connor), Billy Jenkins (Seraph)
• Written By: Jonathan Brackley & Sam Vincent
• Directed By: Francesca Gregorini

• Cast in Order of Appearance: Marshall Allman (Milo Khoury), Carrie-Anne Moss (Dr. Athena Morrow), Katherine Parkinson (Laura Hawkins), Gemma Chan (Mia), Lucy Carless (Mattie Hawkins), Colin Morgan (Leo Elster), Emily Berrington (Niska), Thusitha Jayasundera (Neha Patel QC), Pixie Davies (Sophie Hawkins), Tom Goodman-Hill (Joe Hawkins), Theo Stevenson (Toby Hawkins), Will Tudor (Odi), Paul Keating (Priest), Ruth Bradley (Detective Inspector Karen Voss), Neil Maskell (Detective Sergeant Pete Drummond), Billy Jenkins (Sam), Sonya Cassidy (Hester), James Greene (Elderly Man), Ivanno Jeremiah (Max), Ritu Arya (Flash), Letitia Wright (Renie), Bella Dayne (Astrid), Chloe Wicks (V)
• Written By: Joe Barton
• Directed By: Francesca Gregorini

• Cast in Order of Appearance: Sonya Cassidy (Hester), Gemma Chan (Mia), Lucy Carless (Mattie Hawkins), Colin Morgan (Leo Elster), Billy Jenkins (Sam), Ruth Bradley (Detective Inspector Karen Voss), Neil Maskell (Detective Sergeant Pete Drummond), Pixie Davies (Sophie Hawkins), Tom Goodman-Hill (Joe Hawkins), Katherine Parkinson (Laura Hawkins), Will Tudor (Odi), Carrie-Anne Moss (Dr. Athena Morrow), Chloe Wicks (V), Claudia Harrison (Dr. Aveling), Simon Harrison (Dr. Sanchez), Letitia Wright (Renie), Theo Stevenson (Toby Hawkins), Bella Dayne (Astrid), Emily Berrington (Niska), Ritu Arya (Flash), Ivanno Jeremiah (Max)
• Written By: Jonathan Brackley & Sam Vincent
• Directed By: Paul Gilbert

• Cast in Order of Appearance: Gemma Chan (Mia), Colin Morgan (Leo Elster), Ivanno Jeremiah (Max), Lucy Carless (Mattie Hawkins), Katherine Parkinson (Laura Hawkins), Tom Goodman-Hill (Joe Hawkins), Theo Stevenson (Toby Hawkins), Ruth Bradley (Detective Inspector Karen Voss), Billy Jenkins (Sam), Sonya Cassidy (Hester), Carrie-Anne Moss (Dr. Athena Morrow), Marshall Allman (Milo Khoury), Chloe Wicks (V), Sophie Matthew (Ginny), Letitia Wright (Renie), Pixie Davies (Sophie Hawkins), Gerald Kyd (Matthew), Emily Berrington (Niska), Bella Dayne (Astrid), Ritu Arya (Flash)
• Written By: Jonathan Brackley & Sam Vincent
• Directed By: Paul Gilbert