| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Charles Pattinson | Crew | Production | Executive Producer | 6 |
 Cristina Casali | Crew | Art | Production Design | 6 |
 Dominic Thomson | Crew | Visual Effects | Visual Effects Supervisor | 6 |
 Dominik Scherrer | Crew | Sound | Original Music Composer | 6 |
Fiona Colbeck | Crew | Editing | Editor | 1 |
 Kate Rhodes James | Crew | Production | Casting | 6 |
 Kris Mrksa | Crew | Production | Executive Producer, Writer, Creator | 6 |
 Paul McFadden | Crew | Sound | Sound Re-Recording Mixer | 6 |
 Willow Grylls | Crew | Production | Executive Producer | 6 |
 Blake Ayshford | Crew | Writing | Writer | 1 |
 Chloë Thomson | Crew | Camera | Director of Photography | 6 |
 Christopher Aird | Crew | Production | Executive Producer | 6 |
 Doug Sinclair | Crew | Sound | Supervising Sound Editor | 6 |
 Elaine Pyke | Crew | Production | Executive Producer | 6 |
 Richard Graham | Crew | Editing | Editor | 2 |
Sian Jenkins | Crew | Costume & Make-Up | Costume Design | 6 |
Jens Rosenlund Petersen | Crew | Sound | Sound Designer | 6 |
 Carmela Iandoli | Crew | Editing | Editor | 2 |
 Mahalia Belo | Crew | Directing | Director | 6 |
 Natasha Khan | Crew | Sound | Original Music Composer | 6 |
Guto Humphreys | Crew | Art | Art Direction | 6 |
Simon Wilkinson | Crew | Visual Effects | Visual Effects | 6 |
Hannah Nicholson | Crew | Art | Set Decoration | 6 |
 Susan Breen | Crew | Production | Producer | 6 |
 Zsofia Ekler | Crew | Art | Art Direction | 6 |
Helen Tucker | Crew | Costume & Make-Up | Hair Designer, Makeup Designer | 6 |
 Megan Bowes | Crew | Costume & Make-Up | Makeup Supervisor | 6 |
Sara Angharad | Crew | Costume & Make-Up | Makeup Artist | 6 |
Sarah Buisson | Crew | Visual Effects | Visual Effects | 6 |
Bryn Thomas | Crew | Sound | Sound Recordist | 6 |
Dominic Strevens | Crew | Editing | Editor | 1 |
 Anastasia Hille | Cast | Actress | Laura | 2 |
 Brendan Coyle | Cast | Actor | Stephen Kendrick | 6 |
 Caroline Berry | Cast | Actress | Mrs Robson | 1 |
 Charles Dale | Cast | Actor | Royce Evans | 6 |
 Claire Rushbrook | Cast | Actress | Rose Morgan | 6 |
 Clare Calbraith | Cast | Actress | PC Graves | 6 |
 Ifan Huw Dafydd | Cast | Actor | Harry Franken | 5 |
 Indra Ové | Cast | Actress | TV Host | 1 |
 Joanna Scanlan | Cast | Actress | Janice Gray | 6 |
 Nick Hobbs | Cast | Actor | Ewan Dean | 1 |
 Nicola Reynolds | Cast | Actress | Natalie Franken | 1 |
 Nimmi Harasgama | Cast | Actress | DI Alice Brenton | 1 |
 Oliver Lansley | Cast | Actor | Carl | 3 |
 Richard Harrington | Cast | Actor | Aron Morgan | 6 |
 Simon Kunz | Cast | Actor | Lloyd Satlow | 6 |
 Simon Winkler | Cast | Actor | Clerk | 1 |
 Sonia Ritter | Cast | Actress | Kath | 2 |
 Tara Fitzgerald | Cast | Actress | Sylvia Walsh | 6 |
 William Thomas | Cast | Actor | Stan | 1 |
 Caroline Martin | Cast | Actress | Ms Clancy | 1 |
 Donna Berlin | Cast | Actress | Celia | 1 |
 Dyfan Dwyfor | Cast | Actor | Ed Fenton | 4 |
 Gareth Mason | Cast | Actor | Locksmith | 1 |
 Jane Thorne | Cast | Actress | Meredith Dean | 3 |
 Joel Fry | Cast | Actor | Harlan "Hal" Fine | 6 |
 Sam Hazeldine | Cast | Actor | Sean Howell | 6 |
 Christina Tam | Cast | Actress | Sheila | 1 |
 Darren Evans | Cast | Actor | Constable Shortly | 5 |
 James Frecheville | Cast | Actor | Nick Dean | 6 |
 Ffion Jolly | Cast | Actress | Yard Duty Teacher | 1 |
 Lydia Wilson | Cast | Actress | Matilda Gray | 6 |
 Colin Murtagh | Cast | Actor | Paramedic | 1 |
 Paul Blackwell | Cast | Actor | Paramedic | 1 |
 Mark Preston | Cast | Actor | Police Officer | 1 |
 Bella Ramsey | Cast | Young Matilda | 1 | |
 Pippa Haywood | Cast | Actress | Dr. Verity Satlow | 5 |
 Lisa Zahra | Cast | Actress | School Mum | 1 |
 Andy Clarkson | Cast | Actor | Sound Technician | 1 |
 Sian Reese-Williams | Cast | Actress | Trudy Franken | 6 |
 Sion Alun Davies | Cast | Actor | Constable Pierce | 1 |
Gareth Key | Cast | Actor | Paramedic | 1 |
 Tibu Fortes | Cast | Actor | Casualty Nurse | 1 |
 Mali Morse | Cast | Actress | Trudy Franken (10 years old) | 1 |
 Brochan Evans | Cast | Actor | David Morgan | 5 |
 Daniel Joseph Woolf | Cast | Actor | Concert Attendee | 1 |
 Alex Brock | Cast | Actor | Hunk | 1 |
 Emmie Thompson | Cast | Actress | Carys Howell | 4 |
 Rupert Lazarus | Cast | Actor | Emile | 2 |
 Adrian Metcalfe | Cast | Actor | Detective | 1 |
 Daniel Baker | Cast | Kendrick's Son | 2 | |
| Person | Type | Job | Role(s) | Episodes |
