 | Peter Firth | ... | Harry Pearce (64 episodes, 2002-2008) |
 | Hugh Simon | ... | Malcolm Wynn-Jones (62 episodes, 2002-2008) |

| Rupert Penry-Jones | ... | Adam Carter (41 episodes, 2004-2008) |
 | Nicola Walker | ... | Ruth Evershed (35 episodes, 2003-2006) |

| Miranda Raison | ... | Jo Portman (34 episodes, 2005-2008) |
 | Rory MacGregor | ... | Colin Wells (31 episodes, 2002-2006) |
 | Hermione Norris | ... | Ros Myers (26 episodes, 2006-2008) |

| David Oyelowo | ... | Danny Hunter (26 episodes, 2002-2004) |

| Raza Jaffrey | ... | Zafar Younis (22 episodes, 2004-2007) |

| Keeley Hawes | ... | Zoe Reynolds (22 episodes, 2002-2004) |
 | Shauna Macdonald | ... | Sam Buxton (20 episodes, 2003-2004) |
 | Matthew Macfadyen | ... | Tom Quinn (18 episodes, 2002-2004) |
 | Gemma Jones | ... | Connie James (16 episodes, 2007-2008) |
 | Anna Chancellor | ... | Juliet Shaw (15 episodes, 2005-2007) |
 | James Dicker | ... | Wesley Carter (15 episodes, 2004-2008) |
 | Alex Lanipekun | ... | Ben Kaplan (12 episodes, 2007-2008) |
 | Olga Sosnovska | ... | Fiona Carter (11 episodes, 2004-2005) |
 | Matthew Marsh | ... | Bob Hogan (10 episodes, 2007) |

| Megan Dodds | ... | Christine Dale (10 episodes, 2002-2004) |

| Richard Armitage | ... | Lucas North / ... (9 episodes, 2002-2008) |
 | Gugu Mbatha-Raw | ... | Jenny (9 episodes, 2006) |
 | Robert Glenister | ... | Home Secretary (9 episodes, 2006-2008) |
 | Simon Abkarian | ... | Dariush Bakhshi (8 episodes, 2007) |

| Jenny Agutter | ... | Tessa Phillips (8 episodes, 2002-2003) |

| Agni Scott | ... | Ana Bakhshi (7 episodes, 2007) |
 | Heather Cave | ... | Maisie Simm (7 episodes, 2002-2003) |
 | Esther Hall | ... | Ellie Simm (7 episodes, 2002-2003) |
 | Graeme Mearns | ... | Jed Kelley (6 episodes, 2002) |
 | Richard Harrington | ... | Will North (6 episodes, 2004) |
 | James Laurenson | ... | Sholto / ... (5 episodes, 2004-2007) |
 | Natasha Little | ... | Vicki Westbrook (5 episodes, 2003) |
 | Claire Cox | ... | Magritte (4 episodes, 2007) |

| Tim McInnerny | ... | Oliver Mace (4 episodes, 2004-2006) |
 | Gus Gallagher | ... | Boscard (4 episodes, 2007-2008) |
 | Richard Johnson | ... | Bernard Qualtrough (4 episodes, 2008) |

| Enzo Cilenti | ... | Carlo Franceschini (4 episodes, 2003) |
 | Debra Gillett | ... | Debra Langham / ... (3 episodes, 2004-2005) |
 | Paloma Baeza | ... | Elizaveta Starkova (3 episodes, 2008) |
 | Jeremy Thompson | ... | Sky Newsreader (3 episodes, 2004-2005) |

| Omid Gholami | ... | Kareem / ... (3 episodes, 2005-2006) |

| Chris Wilson | ... | Ambulance Paramedic / ... (3 episodes, 2007-2008) |
 | Robert East | ... | Richard Dolby (3 episodes, 2008) |
 | Ofo Uhiara | ... | Michael / ... (2 episodes, 2006-2007) |

| Dhaffer L'Abidine | ... | Sharaf (2 episodes, 2006) |

| Simon Kassianides | ... | Mourad (2 episodes, 2006) |
 | Ian Bartholomew | ... | Daniel Wise (2 episodes, 2006) |
 | Raad Rawi | ... | Ambassador / ... (2 episodes, 2006) |

| Matt Day | ... | Neil Sternin (2 episodes, 2006) |
 | Ulas Kilic | ... | Asnik Mehan / ... (2 episodes, 2007) |

| Saskia Reeves | ... | Sally / ... (2 episodes, 2006) |

| Alex Caan | ... | Prince Khaldoon (2 episodes, 2006) |
 | Davood Ghadami | ... | Prince Wissam (2 episodes, 2006) |
 | James Vaughan | ... | Deputy Assistant Commissioner / ... (2 episodes, 2004-2006) |
 | William Armstrong | ... | Alex Roscoe (2 episodes, 2005) |
 | James Cash | ... | Conspirator (2 episodes, 2006) |

| David Phelan | ... | Air Traffic Controller (2 episodes, 2006) |
 | Sam Spruell | ... | Jason Belling (2 episodes, 2004-2007) |
 | John Castle | ... | Jocelyn Myers (2 episodes, 2006) |
 | Roger Allam | ... | Paul Millington (2 episodes, 2006) |
 | Paul Bhattacharjee | ... | Mohammed Khordad / ... (2 episodes, 2004-2008) |
 | Nicholas Jones | ... | Michael Collingwood (2 episodes, 2006) |
 | Phyllis Logan | ... | Diana Jewell (2 episodes, 2005-2006) |

| Simon Woods | ... | Rowan (2 episodes, 2006) |
 | Annita McVeigh | ... | Journalist (2 episodes, 2006) |
 | William Buckhurst | ... | Bomb Disposal Officer / ... (2 episodes, 2002-2003) |
 | Lorcan Cranitch | ... | Patrick McCann (2 episodes, 2002-2003) |
 | Lisa Faulkner | ... | Helen Flynn (2 episodes, 2002) |
 | Hugh Laurie | ... | Jools Siviter (2 episodes, 2002) |

| Tomas Arana | ... | Herman Joyce (2 episodes, 2003-2004) |
 | Paul Jesson | ... | Guy Facer (2 episodes, 2004) |
 | Lindsay Duncan | ... | Angela Wells (2 episodes, 2005-2006) |
 | Stuart Sinclair Blyth | ... | Neil (2 episodes, 2005) |
 | Peter Brooke | ... | Peter (2 episodes, 2005) |
 | John Chancer | ... | Monroe (2 episodes, 2005) |
 | Barry Foy | ... | Man #1 (2 episodes, 2005) |

| Corey Johnson | ... | Richard Boyd (2 episodes, 2005) |
 | Gerald Lepkowski | ... | Joe Kennedy (2 episodes, 2005) |

| Martine McCutcheon | ... | Tash (2 episodes, 2005) |
 | Jeff Rawle | ... | Home Secretary (2 episodes, 2005) |

| Ania Sowinski | ... | Lydia (2 episodes, 2005) |
 | Nigel Terry | ... | Professor Stephen Curtis (2 episodes, 2005) |

| Andrew Tiernan | ... | Forster (2 episodes, 2005) |

| Ben Uttley | ... | Agent Lima (2 episodes, 2006) |
 | Alex Dee | ... | Agent Bill (2 episodes, 2007) |

| Andrew Care | ... | Flunky (2 episodes, 2008) |
 | Guy Williams | ... | Henry Wyndham (2 episodes, 2008) |

| Stuart Wilson | ... | Arkardy Katchimov (2 episodes, 2008) |
|
| David Stafford | .... | second assistant director (8 episodes, 2005-2006) |
| Chris Judd | .... | third assistant director: second unit (8 episodes, 2008) |
| Ian Easton | .... | third assistant director (5 episodes, 2002) |
| Paul Morris | .... | second assistant director (5 episodes, 2002) |
| Chris Fry | .... | first assistant director (4 episodes, 2004) |
| Adam Barrington | .... | third assistant director (4 episodes, 2006) |
| Glyn Harper | .... | third assistant director (4 episodes, 2007) |
| Francesco Reidy | .... | first assistant director (3 episodes, 2002-2006) |
| Mark Goddard | .... | first assistant director (3 episodes, 2002) |
| Sasha Mann | .... | second assistant director (3 episodes, 2003) |
| Holly Watson | .... | third assistant director (3 episodes, 2003) |
| Andrew Woodhead | .... | first assistant director (3 episodes, 2003) |
| Toby Ford | .... | first assistant director (3 episodes, 2007) |
| Alexander Gibb | .... | second assistant director (2 episodes, 2003) |
| Steve Robinson | .... | first assistant director (2 episodes, 2003) |
| Rebbeca Symons | .... | third assistant director (2 episodes, 2003) |
| Tim Riddington | .... | first assistant director (2 episodes, 2007-2008) |
| Matt Alder | .... | second assistant director (2 episodes, 2007) |
| Marcus Catlin | .... | first assistant director (2 episodes, 2007) |
| Francesca Farran-Lee | .... | third assistant director (2 episodes, 2007) |
| James Imber | .... | first assistant director (2 episodes, 2007) |
| Toby Spanton | .... | additional third assistant director (2 episodes, 2007) |
| Ryan Green | .... | second assistant director (2 episodes, 2008) |
|
| David Cain | .... | second assistant director: second unit (unknown episodes) |
| David Crabtree | .... | first assistant director (unknown episodes) |
| Fraser Fennell-Ball | .... | assistant director (unknown episodes) |
| Jessica Hurles-Laws | .... | assistant director: second unit (unknown episodes) |
| Iain Lawrence | .... | additional third assistant director (unknown episodes) |
| Radford Neville | .... | first assistant director (unknown episodes) |
| Jules Powell | .... | second assistant director: second unit (unknown episodes) |
| Lucy Thomas | .... | additional third assistant director (unknown episodes) |
| |
|
| Julian Nix | .... | graphic designer / assistant art director (26 episodes, 2004-2006) |
| Clare Keyte | .... | production buyer (20 episodes, 2006-2007) |
| Jolanta Damski | .... | graphic designer (18 episodes, 2007-2008) |
| Jim McCallum | .... | stand-by props (6 episodes, 2007) |
| John Cooling | .... | stand-by rigger (5 episodes, 2002) |
| Jim Crippen | .... | construction (5 episodes, 2002) |
| Philippe Delestre | .... | construction painter / construction / ... (5 episodes, 2002) |
| Anita Dhillon | .... | stand-by art director (5 episodes, 2002) |
| Illugi Eysteinsson | .... | dressing props (5 episodes, 2002) |
| Kate Good | .... | art department runner (5 episodes, 2002) |
| Andy Grogan | .... | production buyer (5 episodes, 2002) |
| Charlie Henderson | .... | dressing props (5 episodes, 2002) |
| Andrew Hill | .... | draftsman (5 episodes, 2002) |
| Merl Homer | .... | propmaster (5 episodes, 2002) |
| Martin Hull | .... | construction painter / construction / ... (5 episodes, 2002) |
| Andy Knight | .... | construction manager (5 episodes, 2002) |
| Gary Morrison | .... | props driver (5 episodes, 2002) |
| Toby Morrison | .... | props assistant (5 episodes, 2002) |
| Vivien Panagos | .... | art department assistant (5 episodes, 2002) |
| Johnnie Schinas | .... | stand-by props (5 episodes, 2002) |
| Wayne Thompson | .... | construction (5 episodes, 2002) |
| Nick Turnbull | .... | dressing props (5 episodes, 2002) |
| Donna Turner | .... | stand-by painter (5 episodes, 2002) |
| Lloyd Vincent | .... | stand-by props (5 episodes, 2002) |
| Graham Wardale | .... | stand-by carpenter (5 episodes, 2002) |
| Jeremy Wilde | .... | prop storeman (5 episodes, 2002) |
| Loan Woolfe | .... | propmaker (5 episodes, 2002) |
| Peter Taylor | .... | construction (4 episodes, 2002) |
| Louise Corcoran | .... | art department assistant / art department runner / ... (4 episodes, 2003) |
| Ray Holt | .... | property master (3 episodes, 2003) |
| Mike Booys | .... | stand-by props (2 episodes, 2003) |
| Eddie Campbell | .... | props storeman (2 episodes, 2003) |
| Sara Grimshaw | .... | production buyer (2 episodes, 2003) |
| Malcolm Holt | .... | dressing props (2 episodes, 2003) |
| Paul Michel | .... | dressing props (2 episodes, 2003) |
| Brian Neighbour | .... | construction manager (2 episodes, 2003) |
| Sara Partis | .... | stand-by art director (2 episodes, 2003) |
| Ron Sutcliffe | .... | stand-by props (2 episodes, 2003) |
| Aurore Casalis | .... | trainee art department assistant (2 episodes, 2006) |
| Lucienne Suren | .... | stand-by art director (2 episodes, 2007) |
|
| Jonnie Elf | .... | stand-by art director (unknown episodes) |
| |
|
| Rudi Buckle | .... | sound recordist / production sound mixer / ... (46 episodes, 2003-2007) |
| James Feltham | .... | sound re-recording mixer (38 episodes, 2003-2008) |
| Dave Sloss | .... | foley recordist (22 episodes, 2005-2007) |
| Mark Verner | .... | foley editor (22 episodes, 2005-2007) |
| Arthur Graley | .... | foley editor / sound editor (16 episodes, 2002-2003) |
| Ben Norrington | .... | dialogue editor (10 episodes, 2007-2008) |
| Keith Partridge | .... | foley engineer (8 episodes, 2008) |
| Robert Edwards | .... | adr recordist (7 episodes, 2002-2007) |
| Julian Slater | .... | effects editor / sound supervisor / ... (7 episodes, 2002-2003) |
| Stuart Bagshaw | .... | foley editor (7 episodes, 2008) |
| Nigel Heath | .... | dubbing mixer / sound re-recording mixer (6 episodes, 2002-2003) |
| Dan Morgan | .... | dialogue & adr editor / dialogue editor / ... (6 episodes, 2002-2003) |
| John Casali | .... | sound maintenance (5 episodes, 2002) |
| David Crozier | .... | sound mixer (5 episodes, 2002) |
| James Harris | .... | sound assistant (5 episodes, 2002) |
| Jerome McCann | .... | sound maintenance (5 episodes, 2002) |
| Ashley Reynolds | .... | sound assistant (5 episodes, 2002) |
| Andrew Sissons | .... | sound mixer (5 episodes, 2002) |
| Kallis Shamaris | .... | adr and dialogue editor / dialogue editor (5 episodes, 2006) |
| James Bain | .... | sound maintenance / boom operator (4 episodes, 2003-2006) |
| Joanne Dunphy | .... | sound assistant (3 episodes, 2005) |
| John Rodda | .... | sound mixer (3 episodes, 2005) |
| Julie Ankerson | .... | foley artist (3 episodes, 2008) |
| Peter Gleaves | .... | adr mixer (2 episodes, 2003-2008) |
| Rikki Hanson | .... | sound trainee (2 episodes, 2003-2004) |
| Darko Mocilnikar | .... | assistant sound (2 episodes, 2005) |
| John Taylor | .... | production sound mixer (2 episodes, 2005) |
| Peter Gates | .... | dialogue editor (2 episodes, 2007) |
| Joanna Andrews | .... | sound assistant (2 episodes, 2008) |
|
| Neil Collymore | .... | sound re-recording mixer (unknown episodes) |
| Colin Cooper | .... | adr recordist (unknown episodes) |
| Jonathan Rimas | .... | adr mixer (unknown episodes) |
| |
|
| Amanda Searle | .... | still photographer (57 episodes, 2003-2008) |
| Simon Surtees | .... | second assistant camera / clapper loader (18 episodes, 2002-2004) |
| James Summers | .... | gaffer (12 episodes, 2006-2008) |
| Julian Morson | .... | Steadicam operator / camera operator: "a" camera (10 episodes, 2003) |
| Sam Kite | .... | electrician (10 episodes, 2007) |
| Paul Worley | .... | additional grip (10 episodes, 2007) |
| Peter Lamb | .... | best boy (9 episodes, 2002-2003) |
| Paul Borg | .... | gaffer (8 episodes, 2002-2003) |
| Mark Clayton | .... | gaffer (8 episodes, 2004-2007) |
| Brandon Evans | .... | gaffer (8 episodes, 2008) |
| Jim Crowther | .... | grip (7 episodes, 2002-2003) |
| Mary Kyte | .... | focus puller (7 episodes, 2002-2003) |
| Abigail Catto | .... | camera trainee: dailies (6 episodes, 2007) |
| Joss Barratt | .... | still photographer (5 episodes, 2002) |
| Tony Hannington | .... | spark (5 episodes, 2002) |
| Stuart Howell | .... | camera operator (5 episodes, 2002) |
| Adam Lee | .... | electrician (5 episodes, 2002) |
| Dave Moss | .... | electrician (5 episodes, 2002) |
| John Rogers | .... | still photographer (5 episodes, 2002) |
| Ronnie Savory | .... | generator operator (5 episodes, 2002) |
| Colin Strachan | .... | grip (5 episodes, 2002) |
| Phil Taylor | .... | camera trainee (5 episodes, 2002) |
| Paul Donachie | .... | camera operator / Steadicam operator (4 episodes, 2007) |
| Rory Moles | .... | first assistant camera: "b" camera (4 episodes, 2007) |
| Luke Redgrave | .... | camera operator (2 episodes, 2005) |
| Tony Wilcock | .... | gaffer (2 episodes, 2006) |
| Rob Arrowsmith | .... | camera operator (2 episodes, 2008) |
| Peter Batten | .... | camera operator (2 episodes, 2008) |
| Deloris Collins | .... | camera trainee / trainee camera assistant (2 episodes, 2008) |
| Jon Howard | .... | first assistant camera: "b" camera (2 episodes, 2008) |
|
| Tom Unwin | .... | grip trainee (unknown episodes, 2007) |
| Ian Adrian | .... | camera operator (unknown episodes) |
| Jacob Barrie | .... | daily second assistant camera (unknown episodes) |
| Hamish Doyne-Ditmas | .... | first assistant camera (unknown episodes) |
| Camilla Drennan | .... | camera trainee (unknown episodes) |
| Russell Ferguson | .... | assistant camera (unknown episodes) |
| Alan Stewart | .... | additional cinematographer: second unit (unknown episodes) |
| Peter Versey | .... | camera operator: second unit (unknown episodes) |
| |
|
| Alison Barnett | .... | head of production (38 episodes, 2005-2008) |
| Neil Hodge | .... | head chef (30 episodes, 2003-2005) |
| Faujja Singh | .... | armorer (25 episodes, 2002-2005) |
| Matthew Clarke | .... | location assistant (20 episodes, 2005-2006) |
| Craig Heathcote | .... | production runner (20 episodes, 2006-2007) |
| Nicky Coats | .... | production accountant (10 episodes, 2003) |
| Kate Cobbold | .... | assistant accountant (10 episodes, 2003) |
| Michelle Franklin | .... | assistant: Jane Featherstone (10 episodes, 2005) |
| Steve Groom | .... | production accountant (10 episodes, 2005) |
| Adrian Kelly | .... | assistant production coordinator (10 episodes, 2005) |
| Katie Swinden | .... | script editor (10 episodes, 2005) |
| Toby Spanton | .... | floor runner (10 episodes, 2007) |
| Karen Wilson | .... | script editor / script executive (8 episodes, 2002-2003) |
| Mark Gladwin | .... | location manager (8 episodes, 2003-2007) |
| Neil Jones | .... | production accountant (8 episodes, 2008) |
| Chris Judd | .... | key floor runner (8 episodes, 2008) |
| Natasha Phillips | .... | script editor (8 episodes, 2008) |
| Ben Quirk | .... | production runner (7 episodes, 2008) |
| Carla Self | .... | assistant accountant (7 episodes, 2008) |
| Annie Gilhooly | .... | production coordinator (6 episodes, 2002) |
| Rachel Peters | .... | assistant production coordinator (6 episodes, 2002) |
| Owen Matthews | .... | floor runner: dailies (6 episodes, 2004-2005) |
| Sarah Brand | .... | set runner (6 episodes, 2006) |
| Daisy Caton-Jones | .... | key floor runner (6 episodes, 2007) |
| Claire L. Kenny | .... | assistant accountant (6 episodes, 2007) |
| Colette Appleby | .... | stand-in (5 episodes, 2002) |
| Mike Baker | .... | technical consultant (5 episodes, 2002) |
| Brian Baldock | .... | paramedic (5 episodes, 2002) |
| Emma Brown | .... | production runner (5 episodes, 2002) |
| Stephen Chinrey | .... | second assistant location manager (5 episodes, 2002) |
| Ken Clarkson | .... | chef (5 episodes, 2002) |
| Nick Day | .... | technical consultant (5 episodes, 2002) |
| Cathy Doubleday | .... | script supervisor (5 episodes, 2002) |
| Elton Farla | .... | paramedic (5 episodes, 2002) |
| Fraser Fennell-Ball | .... | floor runner (5 episodes, 2002) |
| Wes Gallagher | .... | production runner (5 episodes, 2002) |
| Sarah Hughes | .... | script clearance (5 episodes, 2002) |
| Emma Longhurst | .... | unit publicist (5 episodes, 2002) |
| Jo Manderson | .... | assistant location manager (5 episodes, 2002) |
| Joanne McNally | .... | account director (5 episodes, 2002) |
| Adrian O'Brien | .... | production accountant (5 episodes, 2002) |
| Claire Parker | .... | head of development: Kudos (5 episodes, 2002) |
| Steve Ricard | .... | stand-in (5 episodes, 2002) |
| Jamie Roberts | .... | caterer (5 episodes, 2002) |
| Wendy Roby | .... | assistant: Stephen Garrett (5 episodes, 2002) |
| Tim Shaw | .... | caterer (5 episodes, 2002) |
| Geoff Smith | .... | paramedic (5 episodes, 2002) |
| Lucy Speciale | .... | account assistant (5 episodes, 2002) |
| Caroline Thomas | .... | script supervisor (5 episodes, 2002) |
| Kerry Bates | .... | assistant accountant (4 episodes, 2002) |
| Ralph Cameron | .... | location manager (4 episodes, 2002) |
| Jill Greenwood | .... | assistant production coordinator (4 episodes, 2003) |
| Julie Scott | .... | production executive: BBC (4 episodes, 2003) |
| Anwen Bull | .... | script supervisor (4 episodes, 2005-2006) |
| Nick Oliver | .... | location scout (4 episodes, 2005) |
| Sam Donovan | .... | script supervisor (4 episodes, 2006-2007) |
| Jayne Spooner | .... | script supervisor (3 episodes, 2003-2006) |
| Patrick Schweitzer | .... | location manager (3 episodes, 2003) |
| Thomas Elgood | .... | location manager (3 episodes, 2007) |
| Gareth Lewis | .... | additional floor runner (3 episodes, 2007) |
| Rory Aitken | .... | production assistant (2 episodes, 2003) |
| Evie Bergson | .... | assistant production coordinator (2 episodes, 2003) |
| Katrina Fletcher | .... | assistant location manager (2 episodes, 2003) |
| Dani Gordon | .... | production coordinator (2 episodes, 2003) |
| Tess Malone | .... | script supervisor (2 episodes, 2003) |
| Darren Vincent | .... | production runner (2 episodes, 2003) |
| Patrick Stuart | .... | location manager (2 episodes, 2006-2008) |
| Lisa Mail | .... | script supervisor (2 episodes, 2007) |
| Kerensa Burton | .... | script supervisor (2 episodes, 2008) |
| Helene Oosthuizen | .... | script supervisor (2 episodes, 2008) |
|
| Christopher Aird | .... | script editor: BBC (unknown episodes) |
| Mark Barry-Jackson | .... | aerial helicopter pilot (unknown episodes) |
| Tim Desbois | .... | aerial coordinator (unknown episodes) |
| Frazer Douglas | .... | double: Matthew Macfayden (unknown episodes) |
| Polly Fletcher | .... | assistant accountant (unknown episodes) |
| Stan Fus | .... | location manager (unknown episodes) |
| Winston Gallagher | .... | production assistant (unknown episodes) |
| Clare Jones | .... | production secretary (unknown episodes) |
| Marc Vincent | .... | production runner (unknown episodes) |
| Harriet Worth | .... | floor runner (unknown episodes) |
| |