 | James Nesbitt | ... | Tommy Murphy (22 episodes, 2003-2007) |

| Del Synnott | ... | DC Alan Carter / ... (8 episodes, 2003-2004) |
 | Sarah Berger | ... | Hilary Clarke (6 episodes, 2004) |
 | Michael Feast | ... | Rees (6 episodes, 2005) |
 | Mark Womack | ... | Callard / ... (6 episodes, 2005) |
 | Claudia Harrison | ... | Annie Guthrie (5 episodes, 2003-2004) |

| Owen Teale | ... | Paul Allison / ... (5 episodes, 2005) |
 | Mark Benton | ... | Father McBride (5 episodes, 2003-2004) |
 | Michael Fassbender | ... | Caz Miller (5 episodes, 2005) |
 | Georgia Mackenzie | ... | Ellie Holloway (5 episodes, 2005) |
 | Ramon Tikaram | ... | Richard Holloway (4 episodes, 2005) |
 | Grant Burgin | ... | Thompson (4 episodes, 2004) |
 | Larry Lamb | ... | Garvey / ... (4 episodes, 2005) |
 | Liam Cunningham | ... | Drew Johnstone (3 episodes, 2006) |
 | Brian McCardie | ... | Billy Johnstone (3 episodes, 2006) |
 | Francis Magee | ... | Detective Chief Superintendent Warren (3 episodes, 2006) |
 | Andrea Lowe | ... | D.C. Kim Goodall / ... (3 episodes, 2007) |
 | Jessica Oyelowo | ... | D.C. Jackie Cole (3 episodes, 2007) |
 | Patricia Martin | ... | Murphy's Ma / ... (3 episodes, 2006) |
 | Ian Redford | ... | Chief Sup Ken Bowry / ... (3 episodes, 2007) |
 | John Hewitt | ... | Murphy's Dad / ... (3 episodes, 2006) |
 | Robbie Gee | ... | DCS Atwood / ... (3 episodes, 2007) |
 | Nadim Sawalha | ... | Mohammed Khan (3 episodes, 2006) |

| Tim Plester | ... | D.C. 'Wilco' Simpson / ... (3 episodes, 2007) |
 | Priyanga Burford | ... | Shahana Khan (3 episodes, 2006) |
 | Leo Wringer | ... | Abdul (3 episodes, 2006) |
 | Emil Marwa | ... | Bash (3 episodes, 2006) |
 | Rebekah Manning | ... | Lorraine (3 episodes, 2006) |
 | Joe Hanley | ... | Branko (3 episodes, 2007) |

| Ivana Basic | ... | Annushkha (3 episodes, 2006) |
 | Tom Fisher | ... | Billy Driscoll (3 episodes, 2007) |
 | Isobel Pravda | ... | Misha (3 episodes, 2006) |

| Bronson Webb | ... | Liam Driscoll (3 episodes, 2007) |
 | Packy Lee | ... | Drew Johnstone Jnr (3 episodes, 2006) |
 | Ernest Ignatius | ... | Mawala Rahman (3 episodes, 2006) |
 | Chris Sandford | ... | Police Technician (3 episodes, 2006) |
 | Adipat Virdi | ... | Mo's Heavy (3 episodes, 2006) |
 | Kumayi Vazir | ... | Navid (3 episodes, 2006) |

| Christopher Fulford | ... | Mark Baker (3 episodes, 2007) |
 | Sarah Ball | ... | Carol Kershaw (3 episodes, 2007) |
 | Trevor Cooper | ... | Clive Salter (3 episodes, 2007) |
 | Shaun Dooley | ... | Ollington (3 episodes, 2005) |
 | Jay Kilbey | ... | Frankie (3 episodes, 2005) |
 | Maggie Lloyd Williams | ... | Leedham (3 episodes, 2005) |
 | Daire Glynn | ... | Glen (3 episodes, 2006) |
 | Shane Zaza | ... | Naim Khan (2 episodes, 2006) |
 | Di Botcher | ... | Brothel Madam (2 episodes, 2007) |
 | Debbie Norman | ... | Debbie Salter (2 episodes, 2007) |
 | Lalor Roddy | ... | Belfast Detective / ... (2 episodes, 2006) |
 | Conor Delaney | ... | SWAT Team Leader (2 episodes, 2007) |
 | Lynda Steadman | ... | Karen / ... (2 episodes, 2003) |

| Michael Klesic | ... | Milos (2 episodes, 2007) |
 | Simon Coury | ... | Baker's Brief (2 episodes, 2007) |
 | Lucy Miller | ... | Debbie's Brief (2 episodes, 2007) |
 | Mia Fernandez | ... | Sanja (2 episodes, 2007) |
 | Peter Rnic | ... | Gangster / ... (2 episodes, 2004) |

| James Barriscale | ... | Turner (2 episodes, 2005) |
 | Robyn Kerr | ... | Ebony (2 episodes, 2005) |
 | Sarah Matravers | ... | Helen (2 episodes, 2005) |
 | Mo Sesay | ... | Crowther (2 episodes, 2005) |

| Mick Fitzgerald | ... | Denis the Barman (2 episodes, 2006) |
|
| Greg Brenman | .... | executive producer / executive producer: Tiger Aspect (13 episodes, 2003-2007) |
| Jemma Rodgers | .... | producer (8 episodes, 2004-2005) |
| Stephen Wright | .... | executive producer (6 episodes, 2005) |
| Stephen Smallwood | .... | producer (6 episodes, 2006-2007) |
| Mary Alleguen | .... | line producer (5 episodes, 2006-2007) |
| Sanne Craddick | .... | producer (4 episodes, 2003) |
| Carol Ann Docherty | .... | executive producer / executive producer: BBC Northern Ireland (4 episodes, 2003) |
| Andrew Lowe | .... | executive producer: Element Films (4 episodes, 2006-2007) |
| Robert Cooper | .... | executive producer (2 episodes, 2004) |
| Kate Murrell | .... | line producer (2 episodes, 2004) |
| |
|
| Matt Alder | .... | third assistant director (6 episodes, 2005) |
| Peter Nightingale | .... | second assistant director (5 episodes, 2003-2005) |
| Nige Watson | .... | first assistant director (5 episodes, 2003-2005) |
| Clare Shepherd | .... | third assistant director (4 episodes, 2004-2005) |
| Peter Agnew | .... | first assistant director (4 episodes, 2006-2007) |
| Sandra Corbally | .... | third assistant director (4 episodes, 2006-2007) |
| Daisy Cummins | .... | second assistant director (4 episodes, 2006-2007) |
| Toby Ford | .... | first assistant director (2 episodes, 2003) |
| Annabel Merritt | .... | third assistant director (2 episodes, 2003) |
| Paul Dale | .... | first assistant director (2 episodes, 2004) |
| Anna Harrison | .... | trainee assistant director (2 episodes, 2007) |
|
| Richard Harris | .... | first assistant director (unknown episodes) |
| Angharad Jones | .... | third assistant director (unknown episodes) |
| |
|
| Jonathan Downing | .... | stand-by props (6 episodes, 2005) |
| Tony Boston | .... | stand-by props (3 episodes, 2006) |
| Simon Boyd | .... | stand-by props (3 episodes, 2006) |
| Simon Dalton | .... | dressing props (3 episodes, 2006) |
| Melanie Downes | .... | stand-by art director (3 episodes, 2006) |
| Mick Flood | .... | property master (3 episodes, 2006) |
| Anna Kirwan | .... | assistant art director (3 episodes, 2006) |
| Adrienne McGrane | .... | graphics (3 episodes, 2006) |
| John Porter | .... | dressing props (3 episodes, 2006) |
| Jil Turner | .... | production buyer (3 episodes, 2006) |
| Damian Butlin | .... | props (2 episodes, 2003) |
| Laurence Archer | .... | property master (2 episodes, 2004) |
| Mark Bevan | .... | dressing props (2 episodes, 2004) |
| Max De Nett | .... | stand-by props (2 episodes, 2004) |
| Tracy Gallaccio | .... | production buyer (2 episodes, 2004) |
| Dean Hawley | .... | stand-by painter (2 episodes, 2004) |
| Georgina Millett | .... | assistant art director (2 episodes, 2004) |
| Paul Pitts | .... | dressing props (2 episodes, 2004) |
| Trevor Singfield | .... | stand-by carpenter (2 episodes, 2004) |
| Madeleine Turnbull | .... | stand-by art director (2 episodes, 2004) |
| Steve Watson | .... | stand-by props (2 episodes, 2004) |
| Melissa Magna | .... | assistant art director (2 episodes, 2005) |
|
| Noel Deegan | .... | dressing props (unknown episodes) |
| Kaye Robertson | .... | stand-by art director (unknown episodes) |
| Steve 'Moose' Smith | .... | dressing props (unknown episodes) |
| |
|
| Nigel Heath | .... | sound re-recording mixer / dubbing mixer (6 episodes, 2004-2005) |
| Tom Barrow | .... | assistant sound (6 episodes, 2005) |
| Tim Fraser | .... | sound recordist / sound mixer (6 episodes, 2005) |
| John Fitzgerald | .... | sound re-recording mixer (6 episodes, 2006-2007) |
| Brendan Geaney | .... | foley editor / foley artist (6 episodes, 2006-2007) |
| Alex Sawyer | .... | dialogue editor (5 episodes, 2005) |
| Simon Gershon | .... | sound effects editor (4 episodes, 2003) |
| Andrew Stirk | .... | sound re-recording mixer / dubbing mixer (4 episodes, 2003) |
| James Feltham | .... | sound re-recording mixer (4 episodes, 2005) |
| Dave Sloss | .... | foley recordist (4 episodes, 2005) |
| Mark Verner | .... | foley editor (4 episodes, 2005) |
| Miriam Ludbrook | .... | sound editor / dialogue editor (3 episodes, 2003) |
| Daniel Birch | .... | sound mixer (3 episodes, 2006) |
| Peter Blayney | .... | sound re-recording mixer (3 episodes, 2006) |
| Sarah Gaines | .... | dialogue editor (3 episodes, 2006) |
| Richard Hetherington | .... | boom operator (3 episodes, 2006) |
| Nicky Moss | .... | sound designer (3 episodes, 2006) |
| Fionn Higgins | .... | dialog editor (3 episodes, 2007) |
| Mike Grimes | .... | sound effects editor (2 episodes, 2003) |
| Gareth John | .... | boom operator (2 episodes, 2003) |
| Ben Meechan | .... | sound effects editor (2 episodes, 2003) |
| Hilary Wyatt | .... | dialogue editor / supervising dialogue editor (2 episodes, 2003) |
| Rodney Berling | .... | sound effects editor (2 episodes, 2004) |
| Tony Cook | .... | sound maintenance (2 episodes, 2004) |
| Dan Morgan | .... | dialogue editor (2 episodes, 2004) |
| Colin Nicolson | .... | sound recordist (2 episodes, 2004) |
|
| Matthew Desorgher | .... | sound maintenance (unknown episodes) |
| Michael Fentum | .... | sound effects editor (unknown episodes) |
| Jamie Gambell | .... | boom operator (unknown episodes) |
| Dan Green | .... | adr recordist (unknown episodes) |
| John Rodda | .... | sound recordist (unknown episodes) |
| |
|
| Bill Astin | .... | gaffer (7 episodes, 2004-2005) |
| Vinny Cowper | .... | best boy (7 episodes, 2004-2005) |
| Micky Patten | .... | grip (7 episodes, 2004-2005) |
| Hilda Sealy | .... | clapper loader (7 episodes, 2004-2005) |
| Chris Williams | .... | camera trainee (6 episodes, 2005) |
| David Grennan | .... | focus puller (6 episodes, 2006-2007) |
| Sean Connor | .... | focus puller (5 episodes, 2005) |
| Angelika Padberg | .... | electric trainee (4 episodes, 2004) |
| Stephen Murphy | .... | camera operator / camera operator: "a" camera / ... (4 episodes, 2006-2007) |
| Sean Creagh | .... | generator operator (3 episodes, 2006) |
| Stephen Doyle | .... | best boy (3 episodes, 2006) |
| Daniel Edwards | .... | second clapper loader (3 episodes, 2006) |
| Tim Fleming | .... | camera operator (3 episodes, 2006) |
| Stephen McCarthy | .... | gaffer (3 episodes, 2006) |
| Paul McNulty | .... | electrician (3 episodes, 2006) |
| Ivan Meagher | .... | focus puller (3 episodes, 2006) |
| Cormac O'Omáille | .... | clapper loader (3 episodes, 2006) |
| Sam Philips | .... | camera grip (3 episodes, 2006) |
| Alf Tramontin | .... | steadicam operator (2 episodes, 2003) |
| Ronnie Green | .... | electrician (2 episodes, 2004) |
| Tim Potter | .... | focus puller (2 episodes, 2004) |
| Roy Rowland | .... | electrician (2 episodes, 2004) |
| Ian Sinfield | .... | electrician (2 episodes, 2004) |
|
| Camilla Drennan | .... | camera trainee (unknown episodes) |
| Terry Mcguinness | .... | electrician (unknown episodes) |
| Adam Walker | .... | electrician (unknown episodes) |
| |
|
| Jennifer McAufield | .... | production executive: BBC (8 episodes, 2003-2005) |
| James Nesbitt | .... | creative consultant (8 episodes, 2004-2007) |
| Mike Noble | .... | production secretary (6 episodes, 2004) |
| Nick Oliver | .... | location scout (6 episodes, 2005) |
| Rebecca Daly | .... | accounting assistant / second assistant accountant (6 episodes, 2006-2007) |
| Sile Dorney | .... | production accountant (6 episodes, 2006-2007) |
| Cian O'Muilleoir | .... | assistant accountant / assistant production accountant (6 episodes, 2006-2007) |
| Will Gould | .... | script editor (5 episodes, 2006-2007) |
| Mark Gladwin | .... | location manager (4 episodes, 2005) |
| Hilary Norrish | .... | script executive (4 episodes, 2005) |
| Peter Bleksley | .... | story consultant (4 episodes, 2006-2007) |
| Rachel Smith | .... | production coordinator (4 episodes, 2006-2007) |
| Una Maguire | .... | unit publicist / publicist (3 episodes, 2003-2004) |
| Susannah Booker | .... | location manager (3 episodes, 2004-2005) |
| Tess Malone | .... | script supervisor (3 episodes, 2005) |
| Navid Akhtar | .... | religious advisor (3 episodes, 2006) |
| Kerensa Burton | .... | script supervisor (3 episodes, 2006) |
| Eamonn Cleary | .... | location assistant (3 episodes, 2006) |
| Cathleen Dore | .... | assistant production coordinator (3 episodes, 2006) |
| Robert Leedham | .... | script editor (3 episodes, 2006) |
| Conor O'Carroll | .... | assistant location manager (3 episodes, 2006) |
| Gordon Wycherley | .... | location manager (3 episodes, 2006) |
| Nic Benns | .... | title designer (3 episodes, 2007) |
| Grainne Dunne | .... | assistant production coordinator (3 episodes, 2007) |
| Chris Roufs | .... | script supervisor (3 episodes, 2007) |
| Adrian Kelly | .... | assistant production coordinator / production secretary (2 episodes, 2003) |
| Vicky Wharton | .... | script editor (2 episodes, 2003) |
| Matt Alder | .... | floor runner (2 episodes, 2004) |
| Linda Baker | .... | script supervisor (2 episodes, 2004) |
| Kate Crowe | .... | script editor (2 episodes, 2004) |
| Fraser Grant | .... | production accountant (2 episodes, 2004) |
| Michael Noble | .... | assistant coordinator (2 episodes, 2004) |
| Jessica Rundle | .... | production coordinator (2 episodes, 2004) |
| Mark Schofield | .... | production runner (2 episodes, 2004) |
| Carla Self | .... | assistant accountant (2 episodes, 2004) |
| Karina Tipton | .... | location assistant (2 episodes, 2004) |
| Danny Ward | .... | production runner (2 episodes, 2004) |
| Stephen Wright | .... | script executive: BBC (2 episodes, 2004) |
| Mohammed Saleem Khan | .... | language advisor (2 episodes, 2006) |
|
| Oliver Southall | .... | production runner (unknown episodes) |
| Emma Williams | .... | location assistant (unknown episodes) |
| |