 | John Barrowman | ... | Captain Jack Harkness (26 episodes, 2006-2008) |
 | Eve Myles | ... | Gwen Cooper (26 episodes, 2006-2008) |
 | Burn Gorman | ... | Owen Harper (26 episodes, 2006-2008) |

| Naoko Mori | ... | Toshiko Sato (26 episodes, 2006-2008) |
 | Gareth David-Lloyd | ... | Ianto Jones (26 episodes, 2006-2008) |

| Kai Owen | ... | Rhys Williams (17 episodes, 2006-2008) |
 | Paul Kasey | ... | Weevil / ... (13 episodes, 2006-2008) |
 | Tom Price | ... | PC Andy (6 episodes, 2006-2008) |

| Freema Agyeman | ... | Martha Jones (3 episodes, 2008) |

| James Marsters | ... | Captain John Hart (3 episodes, 2008) |
 | Indira Varma | ... | Suzie Costello (2 episodes, 2006) |
 | Murray Melvin | ... | Bilis Manger (2 episodes, 2007) |
 | Caroline Chikezie | ... | Lisa (2 episodes, 2006-2007) |
 | Louise Delamere | ... | Diane Holmes (2 episodes, 2006-2007) |

| Skye Bennett | ... | Little Girl / ... (2 episodes, 2008) |
 | Ger Carey | ... | Greg (2 episodes, 2008) |
 | Amy Manson | ... | Alice Guppy (2 episodes, 2008) |
 | Golda Rosheuvel | ... | Doctor / ... (2 episodes, 2008) |

| Noriko Aida | ... | Toshiko's Mother (2 episodes, 2007-2008) |
 | Lachlan Nieboer | ... | Gray (2 episodes, 2008) |
 | Jazz Dhiman | ... | Fight Club Punter / ... (2 episodes, 2006) |
|
| Lynsey Muir | .... | second assistant director / third assistant director (14 episodes, 2006-2008) |
| Nic Britz | .... | first assistant director (8 episodes, 2006-2008) |
| James Dehaviland | .... | second assistant director (4 episodes, 2008) |
| Richard Harris | .... | first assistant director (4 episodes, 2008) |
| Peter Bennett | .... | first assistant director (2 episodes, 2006) |
| Guy de Glanville | .... | second assistant director (2 episodes, 2006) |
| Steffan Morris | .... | second assistant director (2 episodes, 2006) |
| Nick Brown | .... | first assistant director (2 episodes, 2008) |
| Marco Ciglia | .... | first assistant director (2 episodes, 2008) |
| Rhydian Evans | .... | first assistant director (2 episodes, 2008) |
| Pru Mettyer | .... | second assistant director (2 episodes, 2008) |
| Suzanna Shaw | .... | first assistant director (2 episodes, 2008) |
| |
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| Julian Luxton | .... | series designer / designer (14 episodes, 2006-2008) |
| Mark Cordory | .... | property maker / props (13 episodes, 2006-2007) |
| Stephen Nicholas | .... | chief supervising art director (13 episodes, 2006-2007) |
| Matthew North | .... | art department coordinator (13 episodes, 2006-2007) |
| Will Pope | .... | stand-by carpenter (12 episodes, 2006-2007) |
| Brian Henry | .... | stand-by prop (6 episodes, 2006) |
| Charlie Malik | .... | storeman (6 episodes, 2006) |
| Nick Thomas | .... | property master (6 episodes, 2006) |
| Libby Uppington | .... | assistant stand-by props (6 episodes, 2006) |
| Cathy Featherstone | .... | stand-by art director (3 episodes, 2006-2008) |
| Matthew Hywel-Davies | .... | construction manager (3 episodes, 2006-2008) |
| Matthew Savage | .... | associate designer (3 episodes, 2006) |
| Ben Austin | .... | design assistant (2 episodes, 2006) |
| Ian Bunting | .... | concept artist (2 episodes, 2006) |
| Keith Dunne | .... | supervising art director (2 episodes, 2006) |
| Scott Fisher | .... | construction chargehand (2 episodes, 2006) |
| Jonathan Marquand Allison | .... | art department production manager (2 episodes, 2006) |
| Peter McKinstry | .... | concept artist (2 episodes, 2006) |
| Dafydd Shurmer | .... | stand-by art director (2 episodes, 2006) |
| Lisa McDiarmid | .... | stand-by art director (2 episodes, 2008) |
| |
|
| Doug Sinclair | .... | supervising sound editor (26 episodes, 2006-2008) |
| Julie Ankerson | .... | foley artist (19 episodes, 2006-2008) |
| Howard Eaves | .... | sound effects editor (18 episodes, 2006-2008) |
| Kelly-Marie Angell | .... | foley editor / assistant sound editor (17 episodes, 2006-2008) |
| John Fewell | .... | foley artist (13 episodes, 2006-2007) |
| Paul McFadden | .... | sound editor (13 episodes, 2006-2007) |
| Peter Jeffreys | .... | dubbing mixer (10 episodes, 2006-2008) |
| Jeff Matthews | .... | sound recordist (8 episodes, 2006-2008) |
| Dave Baumber | .... | sound recordist (5 episodes, 2008) |
| Tim Ricketts | .... | dubbing mixer (4 episodes, 2006-2008) |
| Simon Koelmeyer | .... | unit sound recordist / sound recordist: second unit (3 episodes, 2006-2008) |
| Jeff Welch | .... | boom operator (2 episodes, 2006) |
| |
|
| Jean-Claude Deguara | .... | CG supervisor / 3D artist (19 episodes, 2006-2008) |
| Nicolas Hernandez | .... | CG supervisor (19 episodes, 2006-2008) |
| Jenna Powell | .... | visual effects coordinator (17 episodes, 2006-2008) |
| Barney Curnow | .... | visual effects supervisor / on-set visual effects supervisor (13 episodes, 2006-2008) |
| Marie A. Jones | .... | visual effects producer (13 episodes, 2006-2008) |
| Kim Phelan | .... | visual effects coordinator (6 episodes, 2006) |
| Astrid Busser-Casas | .... | digital compositor (5 episodes, 2006-2007) |
| Andrew Guest | .... | digital effects artist (5 episodes, 2006-2007) |
| Neil Roche | .... | animator / 3D artist (5 episodes, 2006-2007) |
| Will Pryor | .... | digital effects artist (5 episodes, 2006) |
| Natalie Stopford | .... | visual effects coordinator (5 episodes, 2006) |
| Adam Burnett | .... | CG artist (3 episodes, 2006) |
| Will Cohen | .... | visual effects producer (2 episodes, 2006) |
| Bronwyn Edwards | .... | senior compositor (2 episodes, 2006) |
| Dave Houghton | .... | visual effects supervisor (2 episodes, 2006) |
| |
|
| Micky Reeves | .... | gaffer (13 episodes, 2006-2007) |
| Gafin Riley | .... | practical electrician (13 episodes, 2008) |
| Steve Hopkins | .... | lighting technician / electrician (11 episodes, 2006-2007) |
| Dave Fowler | .... | gaffer (10 episodes, 2006-2008) |
| Llyr Evans | .... | best boy (8 episodes, 2006-2007) |
| Elliott Gilhooly | .... | camera trainee (8 episodes, 2006) |
| Martin Stephens | .... | camera operator (8 episodes, 2008) |
| Christopher J. Reynolds | .... | focus puller: "a" camera / first assistant camera: "b" camera / ... (7 episodes, 2006-2008) |
| Gareth Hughes | .... | camera operator (6 episodes, 2006) |
| James Moss | .... | camera operator (5 episodes, 2006-2008) |
| John Truckle | .... | gaffer (4 episodes, 2008) |
| Warwick Drucker | .... | additional grip (3 episodes, 2006) |
| Chris Davies | .... | best boy (3 episodes, 2008) |
| Albert James | .... | practical electrician (3 episodes, 2008) |
| Marc Covington | .... | focus puller (2 episodes, 2006) |
| Duncan Fowlie | .... | focus puller (2 episodes, 2006) |
| Dai Hopkins | .... | grip (2 episodes, 2006) |
| Steve Slocombe | .... | best boy (2 episodes, 2006) |
| Tony Ephgrave | .... | electrician (2 episodes, 2008) |
| Paul Hanning | .... | first assistant camera: "b" camera (2 episodes, 2008) |
| Allan Hughes | .... | grip (2 episodes, 2008) |
| Rob McGregor | .... | focus puller (2 episodes, 2008) |
| Tom Olley | .... | electrician (2 episodes, 2008) |
| John Robinson | .... | grip (2 episodes, 2008) |
| |
|
| Brian Minchin | .... | script editor (20 episodes, 2006-2008) |
| Carmelina Palumbo | .... | production coordinator (13 episodes, 2006-2007) |
| Vicky Cole | .... | script supervisor (6 episodes, 2006-2008) |
| Hannah Simpson | .... | production coordinator (5 episodes, 2008) |
| Ceri Tothill | .... | production accountant (3 episodes, 2006-2008) |
| Gary Russell | .... | script editor (3 episodes, 2008) |
| Margarita Felices | .... | production secretary (2 episodes, 2006) |
| Llinos Wyn Jones | .... | continuity (2 episodes, 2006) |
| Kate Powell | .... | assistant production coordinator (2 episodes, 2006) |
| Helen Pugsley | .... | script secretary (2 episodes, 2006) |
| Claire Roberts | .... | production secretary (2 episodes, 2006) |
| Julie Scott | .... | production executive (2 episodes, 2006) |
| Endaf Emyr Williams | .... | production accountant (2 episodes, 2006) |
| |