| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 David Blackmore | Crew | Editing | Editor | 1 |
Gavin Finney | Crew | Camera | Director of Photography | 1 |
Jamie Edgell | Crew | Crew | Stunt Coordinator | 1 |
 Peter Kosminsky | Crew | Directing | Director, Writer, Creator | 1 |
Robert Jones | Crew | Production | Producer | 6 |
Declan Lawn | Crew | Writing | Writer | 1 |
 Marcus Shakesheff | Crew | Crew | Stunts | 1 |
 Phoebe Robinson-Galvin | Crew | Crew | Stunts | 1 |
Carly Michaels | Crew | Crew | Stunt Double | 1 |
Chris Waite | Crew | Crew | Stunts | 1 |
Amelia Spencer | Crew | Writing | Writer | 1 |
Adam Patterson | Crew | Writing | Writer | 1 |
 Adrian Lester | Cast | Actor | PM Andrew Makinde | 6 |
 Alex Jennings | Cast | Actor | David Neal | 6 |
 Alex Reid | Cast | Actress | Colonel Pauline Keele | 1 |
Daniel O'Meara | Cast | Newscaster | 3 | |
David Prosho | Cast | Actor | Steve Cleary | 2 |
 Ed Stoppard | Cast | Actor | Richard Marston | 6 |
 Hattie Morahan | Cast | Actress | Elizabeth Kahn | 6 |
 Iain McKee | Cast | Actor | Peter Walker | 1 |
 Keiron Self | Cast | Actor | Lt. Colonel Andy Marsh | 1 |
 Kerry Godliman | Cast | Actress | Angie McMurray | 3 |
 Mark Rylance | Cast | Actor | John Yeabsley | 4 |
 Martin Trenaman | Cast | Actor | Harry Davies | 1 |
 Melanie Gutteridge | Cast | Actress | Chrissie | 2 |
 Nitin Ganatra | Cast | Actor | Ahmed Parvin | 2 |
 Robert Cavanah | Cast | Actor | Campbell Scott | 1 |
 Simon Pegg | Cast | Actor | Danny Patrick | 6 |
 Andrew Byron | Cast | Actor | Glavset Supervisor | 1 |
 Chike Chan | Cast | Actor | Chen | 2 |
 Eduard Flerov | Cast | Actor | Felix Trusov | 1 |
 Florence Bell | Cast | Actress | Millie W | 1 |
 John Schwab | Cast | Actor | Matthew Mitchie | 2 |
 Paula Kaye | Cast | Actress | Adede | 1 |
 Tom McKay | Cast | Actor | Max K | 5 |
 Gediminas Adomaitis | Cast | Actor | Vasily | 1 |
 Janina Elkin | Cast | Actress | Ludmilla Trusov | 1 |
Kirsty Hoiles | Cast | Actress | Caroline Fitch | 1 |
 Oliver Powell | Cast | Actor | Daz Wiskowski | 1 |
 Victoria Broom | Cast | Actress | Alex | 1 |
 Andrew Rothney | Cast | Actor | Rich T | 4 |
 Aysha Kala | Cast | Actress | Amina Parvin | 3 |
 Isaura Barbé-Brown | Cast | Actress | Annie | 1 |
 Jamie Muscato | Cast | Actor | Finn | 4 |
 Tinatin Dalakishvili | Cast | Actress | Marina Veselova | 4 |
 Maisie Richardson-Sellers | Cast | Actress | Kathy Freeman | 6 |
Yanina Hope | Cast | FSB Lecturer | 2 | |
 Edward Holcroft | Cast | Actor | James Cox | 6 |
Yuri Klimov | Cast | Actor | Russian General | 1 |
 Sukh Ojla | Cast | Polling Clerk | 1 | |
 Anna Cannings | Cast | Mary Davies | 1 | |
Rick Bithell | Cast | Actor | Reporter | 1 |
 Nikolay Serdtsev | Cast | Boris Leonov | 1 | |
 German Segal | Cast | Vadim Trusov | 5 | |
 Charles Abomeli | Cast | Actor | General Landsman | 1 |
 Tom Mumford | Cast | Actor | Police Sergeant | 1 |
Dan Ball | Cast | Actor | Mark Milsome | 1 |
 Joss Porter | Cast | Actor | Phil D | 6 |
 Rekha John-Cheriyan | Cast | Actress | Farzhana Shah | 1 |
 Ernest Gromov | Cast | Yevgeny | 2 | |
Yasmin Wilde | Cast | Bushra Yousafzai | 4 | |
 Zaqi Ismail | Cast | Actor | Zahir | 2 |
 Irena Tyshyna | Cast | Actress | Russian Interviewer | 3 |
 Brendan Purcell | Cast | Actor | GCHQ Security Officer | 1 |
Ashley Zhangazha | Cast | Robert Adebayo | 1 | |
 Lucas Hare | Cast | Actor | Jack Barker | 1 |
Nik Howden | Cast | Adjudicator | 1 | |
 Julian Harries | Cast | Actor | National Security Advisor | 4 |
 Julie Barclay | Cast | Actress | Sally J | 3 |
 Hannah Khalique-Brown | Cast | Saara Parvan | 6 | |
 Gavi Singh Chera | Cast | Actor | Sajid Parvin | 4 |
Bharti Patel | Cast | Yasmin Parvin | 3 | |
Alfie Friedman | Cast | Actor | Gabriel Davies | 3 |
 Jessica Layde | Cast | Actress | PC Sandy Bishop | 1 |
Sacha Plaige | Cast | Actress | Camerawoman | 1 |
Isla Hannigan | Cast | Actress | Millie | 2 |
Nikita Zabolotny | Cast | Actress | Misha | 3 |
 Alex Romashov | Cast | Actor | Pyotr | 1 |
Tamara Kumar | Cast | Actress | Mina Veselova | 1 |
Lloyd James | Cast | Uniformed Sergeant | 1 | |
Sophia Carlo | Cast | Actress | Zasha | 1 |
 Elee Nova | Cast | Actress | Varvara | 2 |
Belle Kumble-Rose | Cast | Actress | Student | 1 |
Alpha Kargbo | Cast | Actor | Male Relative | 1 |
Daf Thomas | Cast | Actor | Young Male Canvaser | 1 |
Sean La-Tunje | Cast | Actor | Temi | 3 |
Bhawna Bhawshar | Cast | Actress | Nazia | 1 |
| Person | Type | Job | Role(s) | Episodes |
