| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Andy Pryor | Crew | Production | Casting | 6 |
 Candy Davis | Crew | Writing | Novel | 6 |
Claire Pritchard | Crew | Costume & Make-Up | Hair Designer, Makeup Designer | 6 |
Elaine Cameron | Crew | Production | Executive Producer | 6 |
Gareth Rhys Jones | Crew | Sound | Foley Artist | 6 |
Glenn Marks | Crew | Crew | Stunt Coordinator | 3 |
 Kristoffer Nyholm | Crew | Directing | Director | 3 |
 Rasmus Arrildt | Crew | Camera | Director of Photography | 3 |
 Doug Sinclair | Crew | Sound | Supervising Sound Editor | 6 |
Kath Pollard | Crew | Sound | Sound Re-Recording Mixer | 6 |
 Lee Haven Jones | Crew | Directing | Director | 3 |
David Fisher | Crew | Editing | Editor | 3 |
Sam Heasman | Crew | Camera | Director of Photography | 3 |
James Hyde | Crew | Sound | ADR Mixer | 6 |
 Nikki Wilson | Crew | Production | Producer | 6 |
 Robert Edwards | Crew | Sound | Foley Editor, ADR Mixer | 6 |
Megan Gallagher | Crew | Writing | Screenplay, Writer, Creator | 6 |
Matt Mullins | Crew | Editing | Colorist | 6 |
Markus Andreas | Crew | Sound | Sound Effects Editor | 6 |
Harry Platford | Crew | Sound | Dialogue Editor | 6 |
Robert Searl | Crew | Sound | ADR Mixer | 6 |
Ri McDaid-Wren | Crew | Production | Casting Associate | 6 |
Natalia Alexeeva | Crew | Directing | Second Second Assistant Director | 6 |
Eryl Ellis | Crew | Art | Production Design | 6 |
Rob Partridge | Crew | Crew | Armorer | 6 |
Chris Roe | Crew | Sound | Original Music Composer | 6 |
Jamie Talbutt | Crew | Sound | Foley Mixer | 6 |
Payam Hosseinian | Crew | Sound | Sound Effects Editor, Sound Designer | 6 |
Ray Holman | Crew | Costume & Make-Up | Costume Designer | 6 |
Mark Hutchings | Crew | Lighting | Gaffer | 6 |
Adam Bowman | Crew | Crew | Stunts | 1 |
Liv Duffin | Crew | Production | Post Production Coordinator | 6 |
Cai Dyfan | Crew | Art | Standby Art Director | 6 |
Amy Carter | Crew | Costume & Make-Up | Hair Supervisor, Makeup Supervisor | 6 |
Helen Faulkner | Crew | Sound | Foley Editor | 6 |
Matthew Cox | Crew | Sound | ADR Editor | 6 |
Sean Cronin | Crew | Camera | Key Grip | 6 |
Jim Beagley | Crew | Visual Effects | Special Effects Supervisor | 6 |
 Amanda Drew | Cast | Actress | Supt Harper Driscoll | 2 |
 Caroline Berry | Cast | Actress | Doctor Diaz | 1 |
 Hywel Simons | Cast | Actor | Robbie | 2 |
 Jill Baker | Cast | Actress | Louise | 1 |
 Juliet Stevenson | Cast | Actress | Matilda Anchor-Ferrers | 6 |
 Karl Johnson | Cast | Actor | Colonel Frink | 3 |
 Owen Teale | Cast | Actor | Oliver Anchor-Ferrers | 6 |
 Richard Elfyn | Cast | Actor | Mr Bell | 1 |
 Ruby Snape | Cast | Prody's Mum | 2 | |
 Sacha Dhawan | Cast | Actor | Honey | 6 |
 Tim Treloar | Cast | Actor | The Walking Man | 4 |
 Ciaran Joyce | Cast | Actor | Prody | 2 |
 George Russo | Cast | Actor | DI Richards | 1 |
 Hywel Morgan | Cast | Actor | Richard | 1 |
 Kai Owen | Cast | Actor | DI Matthews | 3 |
 Iwan Rheon | Cast | Actor | Molina | 6 |
 Kezia Burrows | Cast | Actress | Veronica | 2 |
 Ukweli Roach | Cast | Actor | Jack Caffery | 6 |
 Annes Elwy | Cast | Actress | Lucia Anchor-Ferrers | 6 |
 Sian Reese-Williams | Cast | Actress | DI Maia Lincoln | 5 |
 Hedydd Dylan | Cast | Actress | Beca Van Der Bolt | 1 |
 Crisian Emanuel | Cast | Actress | Mrs. Bell | 1 |
Llinos Daniel | Cast | Actress | Vet | 1 |
 Simon Dwyer-Thomas | Cast | Actor | Bones | 4 |
 Gethin Alderman | Cast | Actor | Minnet Kable | 1 |
Mabli Jen Eustace | Cast | Actress | Jessica Bell | 3 |
Karen Ascoe | Cast | Actress | Erin | 2 |
Sophie Mensah | Cast | Lily | 1 | |
Zadeiah Campbell-Davies | Cast | Actress | Emily | 3 |
 Oscar Coleman | Cast | Actor | Young Jack | 3 |
 Gwïon Morris Jones | Cast | Hugo | 3 | |
| Person | Type | Job | Role(s) | Episodes |
