| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 John Morton | Crew | Writing | Writer, Director | 13 |
Jon Plowman | Crew | Production | Executive Producer | 13 |
Paul Schlesinger | Crew | Production | Producer | 13 |
Catherine Gosling Fuller | Crew | Production | Producer | 13 |
 Amelia Bullmore | Cast | Actress | Kay Hope | 13 |
 Christopher Fulford | Cast | Actor | Commander Bob Burford | 1 |
 Darren Boyd | Cast | Actor | Dave Wellbeck | 1 |
 David Tennant | Cast | Actor | Narrator (voice) | 13 |
 Demetri Goritsas | Cast | Actor | Max Madeley | 1 |
 Frankie McCafferty | Cast | Actor | Brian McLoughlin | 1 |
 Georgie Glen | Cast | Actress | School Receptionist | 1 |
 Hugh Bonneville | Cast | Actor | Ian Fletcher | 13 |
Jalaal Hartley | Cast | Actor | Ben Hooper | 1 |
 James Naughtie | Cast | Himself | 1 | |
 Jason Watkins | Cast | Actor | Richard Salter | 1 |
 Jessica Hynes | Cast | Actress | Siobhan Sharpe | 13 |
 Johann Myers | Cast | Actor | Fidel Wilson | 1 |
 John Ramm | Cast | Actor | Nigel Fox | 1 |
 Karina Fernandez | Cast | Actress | Interpretor | 1 |
 Kim Wall | Cast | Actor | Paul Bavington | 1 |
 Lucy Briers | Cast | Actress | Anna Mitchell | 1 |
 Martin Marquez | Cast | Actor | Kevin Thingie | 1 |
 Neil Edmond | Cast | Actor | Mike Whitaker | 1 |
 Nicholas Gleaves | Cast | Actor | Anthony Preston | 1 |
 Nicholas Jones | Cast | Actor | Tony Griffiths | 1 |
 Nina Sosanya | Cast | Actress | Nina Christiani | 1 |
 Nitin Ganatra | Cast | Actor | Martin Soper | 1 |
 Robin Weaver | Cast | Actress | Deputy Asst. Commissioner Rachel Crane | 1 |
 Roderic Culver | Cast | Actor | TV Reporter - Roger | 1 |
Selina Griffiths | Cast | Actress | Anna Priestley | 1 |
Simon Scardifield | Cast | Actor | Richard Watson | 1 |
 Tim Bentinck | Cast | Actor | Richard Parker | 1 |
 Tim McInnerny | Cast | Actor | Tony Ward | 1 |
 Vicki Pepperdine | Cast | Actress | Sarah Slocombe | 1 |
 Vincent Franklin | Cast | Actor | Nick Jowett | 13 |
 Catherine Shepherd | Cast | Actress | Vicky Long | 1 |
 Chizzy Akudolu | Cast | Actress | Jane Owen | 1 |
 Eleanor Matsuura | Cast | Actress | Doctor | 1 |
 Ingrid Oliver | Cast | Actress | AP The Today Programme | 1 |
 Jimmy Akingbola | Cast | Actor | Receptionist | 1 |
 Joel Fry | Cast | Actor | Karl Marx | 7 |
 Karl Theobald | Cast | Actor | Graham Hitchens | 13 |
 Mark Bonnar | Cast | Actor | Ben Farrell | 1 |
 Morven Christie | Cast | Actress | Fi Healey | 7 |
 Olivia Colman | Cast | Actress | Sally Owen | 13 |
 Osi Okerafor | Cast | Actor | Security Guard | 1 |
 Paul Hilton | Cast | Actor | Jason Topper | 1 |
 Philip Arditti | Cast | Actor | Saleem Ahmed | 1 |
Salima Saxton | Cast | Roshanara Khan | 1 | |
 Samuel Barnett | Cast | Actor | Daniel Stroud | 7 |
Simon Wilson | Cast | Actor | TV Reporter - Sam | 3 |
 Tom Riley | Cast | Actor | Christian Jebb | 1 |
 Alex Beckett | Cast | Actor | Barney Lumsden | 8 |
 Bentley Kalu | Cast | Actor | Senior Clandestine Logistics Officer Ryan Burr | 1 |
 John Hollingworth | Cast | Actor | Reporter | 1 |
 Jonny Sweet | Cast | Actor | Justin Carter | 1 |
 Osy Ikhile | Cast | Actor | Mini Steppah | 1 |
 Sara Pascoe | Cast | Actress | Coco Lomax | 7 |
 Robin Hooper | Cast | Actor | Frederick Moyle | 1 |
 Martin McDougall | Cast | Actor | Senior Operations Analyst Scott Coldwell | 1 |
 Kate Silverton | Cast | Actress | Herself | 1 |
 Jessica Knappett | Cast | Actress | Carey Taylor | 1 |
 Mozaffar Shafeie | Cast | Actor | Dr Benhamadi | 1 |
 Karl Collins | Cast | Actor | Bus Driver | 1 |
Jane Whittenshaw | Cast | Actress | Security Guard | 1 |
Glen Davies | Cast | Actor | Dave Mills | 1 |
 Aled Jones | Cast | Actor | Himself | 1 |
 Simon McCoy | Cast | Actor | Himself | 1 |
 Tanni Grey-Thompson | Cast | Actress | Herself | 1 |
 Jamie Dispirito | Cast | Ben | 1 | |
Stuart Nurse | Cast | Actor | Colin Turnball | 1 |
 Marcus Onilude | Cast | Actor | Shaquille Johnson | 1 |
Sebastian Coe | Cast | Actor | Himself | 3 |
| Person | Type | Job | Role(s) | Episodes |
