| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Dave Rowntree | Crew | Sound | Sound Director | 6 |
 David Heyman | Crew | Production | Production Executive | 6 |
 Greg Powell | Crew | Crew | Stunts | 1 |
Ben Chanan | Crew | Directing | Director, Writer, Creator | 6 |
Rosie Alison | Crew | Production | Executive Producer | 6 |
Ian Arber | Crew | Sound | Sound Director | 6 |
Ben Irving | Crew | Production | Production Executive | 6 |
Tom Coan | Crew | Production | Executive Producer | 6 |
 Adam Sopp | Cast | Actor | Detective One | 1 |
 Alan Williams | Cast | Actor | Eddie Emery | 3 |
 Andy Nyman | Cast | Actor | Rowan Gill | 6 |
 Barry Ward | Cast | Actor | Charlie Hall | 6 |
 Ben Miles | Cast | Actor | Commander Danny Hart | 12 |
 Cavan Clerkin | Cast | Actor | DS Patrick Flynn | 9 |
 Charlotte Comer | Cast | Actress | Dee | 1 |
 Esther Hall | Cast | Actress | Elaine Hart | 2 |
 Famke Janssen | Cast | Actress | Jessica Mallory | 1 |
 Ginny Holder | Cast | Actress | DS Nadia Latif | 3 |
 Holliday Grainger | Cast | Actress | DI Rachel Carey | 12 |
 Ian Burfield | Cast | Actor | Taxi Driver | 3 |
 Indira Varma | Cast | Actress | Khadija Khan | 6 |
 Lia Williams | Cast | Actress | DSU Gemma Garland | 12 |
 Nigel Lindsay | Cast | Actor | DSU Tom Kendricks | 5 |
 Paul Ritter | Cast | Actor | Marcus Levy | 1 |
 Ralph Ineson | Cast | Actor | DCI Alec Boyd | 4 |
 Ron Perlman | Cast | Actor | Frank Napier | 10 |
 Simon Ludders | Cast | Actor | Forensics Officer Nick | 1 |
 Urs Rechn | Cast | Actor | Gabor | 1 |
 Dustin Demri-Burns | Cast | Actor | Francis | 3 |
 Ian Pirie | Cast | Actor | Kenny Shaw | 3 |
 Miriam Lucia | Cast | Actress | Prosecutor | 1 |
 Adelayo Adedayo | Cast | Actress | Alma Dahmani | 3 |
 Einar Kuusk | Cast | Actor | Covert OP Ray | 4 |
 Faraz Ayub | Cast | Actor | Operator Two | 3 |
 Laura Haddock | Cast | Actress | Hannah Roberts | 6 |
 Callum Turner | Cast | Actor | Shaun Emery | 6 |
 Charlie Murphy | Cast | Actress | Simone Turner | 6 |
 Tom Colley | Cast | Actor | Operator One | 5 |
 Tomiwa Edun | Cast | Actor | Faisal | 2 |
 Lewis Kirk | Cast | Actor | Safe House OP Louie | 5 |
 Mike Noble | Cast | Actor | Lee | 2 |
 Paapa Essiedu | Cast | Actor | Isaac Turner MP | 6 |
 Peter Singh | Cast | Actor | Operator Phillips | 6 |
 Sharon Rooney | Cast | Actress | Becky | 4 |
Daisy Waterstone | Cast | Actress | Abigail Carey | 6 |
 Kayla Meikle | Cast | Actress | Jeanie | 2 |
 Kiran Sonia Sawar | Cast | Actress | Naz | 3 |
 Derek Siow | Cast | Actor | Andy Sim | 2 |
 Alex Hughes | Cast | Actor | Coroner | 1 |
 Tommy McDonnell | Cast | Actor | Mat Forester | 4 |
 Sophia Brown | Cast | Actress | Karen | 5 |
 Marcus Fraser | Cast | Actor | Guard Mikey | 5 |
 Andrew Joshi | Cast | Actor | DCI Peter Taylor | 1 |
 Jennifer Saayeng | Cast | Actress | Covert OP Amelia | 3 |
 Frederick Szkoda | Cast | Actor | Ryan | 3 |
 Rebecca Scott | Cast | Actress | Office Manager | 2 |
 Laurence Ubong Williams | Cast | Actor | Detective Two | 1 |
 Huw Novelli | Cast | Actor | Covert OP Bryn | 4 |
 Christopher Torretto | Cast | Actor | Tactical Firearms Officer | 1 |
 Darren Bancroft | Cast | Actor | Tech Officer | 1 |
 Tibu Fortes | Cast | Actor | Detective Constable | 1 |
 Savannah Acquah | Cast | Actress | Jamila Mahdi | 1 |
 Kevin Garry | Cast | Actor | Jamal | 4 |
Alex Andreas | Cast | Actor | Heavy Set Guard | 1 |
 Chabris Napier-Lawrence | Cast | Actress | Safe House OP Clarisse | 4 |
James Vaughan | Cast | Actor | Judge | 1 |
 Kru Lundy | Cast | Actor | Crispin | 2 |
Dan Hagley | Cast | Actor | Uniform Officer | 1 |
Tianna Ellie Gregory | Cast | Actress | Jaycee | 4 |
 Larry Olubamiwo | Cast | Actor | Kevin | 2 |
 Luke Sullivan | Cast | Actor | Quinny | 2 |
 Florian Rafuna | Cast | Actor | Bogdan | 2 |
 Miranda Heath | Cast | Actress | Amina Mahdi | 1 |
 Jason Rennie | Cast | Actor | Zain Mahdi | 1 |
 James Ballanger | Cast | Actor | Guard Denny | 5 |
 Alexander Forsyth | Cast | Actor | Eli Jacobi | 4 |
 Rebecca Pownall | Cast | Actress | Operator Three | 4 |
Hanna Winter | Cast | Actress | Jutca | 1 |
 Jade Harrison | Cast | Actress | Uniform Officer | 1 |
 Houmi Miura | Cast | Actress | Teacher | 1 |
 Robert Ryan | Cast | Actor | Street Witness | 1 |
 Joshua Jo | Cast | Edison Yao | 1 | |
 Tessa Wong | Cast | Actress | DC Chloe Tan | 6 |
| Person | Type | Job | Role(s) | Episodes |
