- Line Pillet - Milly Standish
- Lizzy Watts - Lena Fell
- Olivia Morris - Valerie Peters
- Lizzie Back - Diana Tyson
- Martin Swabey - Martin Bentley
- Maïmouna Badjie - Saskia Dawson
- Madeleine Fletcher - Jasmine Banks
- Maria Dafneros - Nurse
- Tess Bryant - Claudine Froggatt
- Dugald Bruce Lockhart - Roy Froggatt
- Leander Vyvey - Jonathan Fell
- Keith Dunphy - Father Tempest
- Ben Onwukwe - Herman Donckers
- Lawrence Sheldon - Mr Tucker
- Kammy Darweish - Vijay Banerjee
- Natasha Atherton - Priyanka Banerjee
- Nila Aalia - Leela Banerjee
- Charlie Venables - Ted
- Aurora Marion - Amrita Khan
- Charlie Cattrall - Ben Sparrow
- Gideon Turner - Max Turner
- Rupert Turnbull - Young Jasper Tempest
- Rupert Turnbull - Young Jasper
- Joanna Horton - Lucy Turner
- Sarah Mayhew - Jenny
- Willow Rose Wood - Charlie Turner
- Jonathan Sawdon - Kevin Charters
- Terry Diab - Sophie's Grandmother
- Andrew Glover - Kane Carty
- James Daffern - Andrew Wallace
- Trine Thielen - Veronica
- Mark Irons - Raymond
- Barbara Verbergt - Dina Rush
- Robert Cavanah - James Samson
- Charlotte Timmers - Natasha Samson
- Matthieu Sys - Henry Samson
- Calvin Demba - Freddie Samson
- Sunetra Sarker - Maiya Goswami
- Lee Ross - Prison Officer Jon Steddon
- Terence Maynard - Prison Officer Levi Burridge
- Jamie Maclachlan - Sammy Hines
- Chris Ryman - Omar Haq
- Leon Harrop - Benny Vause
- Phil McKee - Kenny Holland
- Jack Ashton - Adam Bernard
- Kyle Pryor - Joseph Bernard
- Maarten Moerkerke
- Stephen Brady
- Walter Iuzzolino
- Alison Kee
- Jo McGrath
- Dries Vos
- Hannes de Maeyer
Ben Miller interpreta a Professor Tempest en la serie.
Emma Naomi hace el papel de Lisa Donckers.
Barney White hace el papel de Dan Winters.
Sarah Woodward interpreta a Ingrid Snares en la serie.
Andy Gathergood interpreta a Paul Rabbit en la serie.
Douglas Reith hace el papel de The Dean.
Juliet Stevenson interpreta a Dr Helena Goldberg en la serie.
Frances de la Tour interpreta a Adelaide Tempest en la serie.
Capítulo disponible en las siguientes plataformas:
