 | Peter Outerbridge | ... | David Sandstrom / ... (Episodes, 2004-2008) |
 | Mayko Nguyen | ... | Mayko Tran (Episodes, 2004-2008) |

| Conrad Pla | ... | Carlos Serrano (Episodes, 2004-2008) |
 | Dmitry Chepovetsky | ... | Bob Melnikov (Episodes, 2004-2008) |

| Greg Bryk | ... | Weston Field (Episodes, 2004-2008) |

| Maxim Roy | ... | Caroline Morrison (Episodes, 2004-2006) |

| Wendy Crewson | ... | Rachel Woods (Episodes, 2007-2008) |

| Sarah Strange | ... | Jill Langston (Episodes, 2004-2007) |

| Geraint Wyn Davies | ... | Carleton Riddlemeyer (Episodes, 2007-2008) |

| Michael Seater | ... | Owen (Episodes, 2006-2007) |

| Rosa Laborde | ... | Nina Corba / ... (Episodes, 2008) |

| Ellen Page | ... | Lilith Sandstrom / ... (Episodes, 2004) |
 | Marc Strange | ... | Toumas Sandstrom / ... (Episodes, 2006-2008) |
 | Mark Rendall | ... | Mick Sloane (Episodes, 2004-2005) |

| Mishu Vellani | ... | Hira Khan / ... (Episodes, 2004-2005) |
 | Rosemary Dunsmore | ... | Congresswoman Shuler (Episodes, 2004-2005) |

| Leah Pinsent | ... | Dr. Ann Turnbull (Episodes, 2007) |

| Vincent Walsh | ... | Colin Digby (Episodes, 2004-2005) |

| Darren Boyd | ... | Prof. Simon Jessop / ... (Episodes, 2006) |

| Karen LeBlanc | ... | Enuka Okimba (Episodes, 2008) |

| Kristin Booth | ... | Daisy Markovic (Episodes, 2004-2005) |
 | Maurice Dean Wint | ... | Connor McGuinn (Episodes, 2004-2006) |

| James Allodi | ... | Dr. Gordon Petras / ... (Episodes, 2007-2008) |
 | Noam Jenkins | ... | Titus Muyerbridge (Episodes, 2007) |

| Deanna Dezmari | ... | Angelica Starov (Episodes, 2007) |
 | Thomas Mitchell | ... | Eliot Field / ... (Episodes, 2005-2007) |
 | Tatum Knight | ... | Molly Field (Episodes, 2007) |
 | Chris Wiggins | ... | Vascily Popov (Episodes, 2005) |

| Hugh Dillon | ... | Danny Dexter / ... (Episodes, 2004-2005) |

| Bill Lake | ... | Dr. Stickland / ... (Episodes, 2004-2007) |

| Ingrid Kavelaars | ... | Dr. Joanna Sabean (Episodes, 2007) |

| Jeff Roop | ... | Milo (Episodes, 2007-2008) |
 | Kenneth Welsh | ... | Dr. Shelby Sloane / ... (Episodes, 2004) |

| Victor Garber | ... | Olivier Roth / ... (Episodes, 2007-2008) |

| Alan Van Sprang | ... | Jack Bowden (Episodes, 2006-2008) |

| Helene Joy | ... | Audrey Graves (Episodes, 2006) |

| Inga Cadranel | ... | Luisa Raposa (Episodes, 2004-2005) |

| Stephen Amell | ... | Craig Riddlemeyer (Episodes, 2007) |
 | Patrick McKenna | ... | Dr. Julius Booker (Episodes, 2004) |
 | Richard Fitzpatrick | ... | Myle Bishop / ... (Episodes, 2005-2007) |

| Tammy Isbell | ... | Lydia Sandstrom / ... (Episodes, 2006) |
 | Patrick Garrow | ... | Patrick McCain / ... (Episodes, 2007) |

| John Boylan | ... | Reverend Stephen Walsh / ... (Episodes, 2004) |

| Tamara Hope | ... | Julie Henshaw (Episodes, 2007) |

| Amanda Stepto | ... | Leslie McCain / ... (Episodes, 2007) |

| Billy MacLellan | ... | Earl Jordan / ... (Episodes, 2004-2006) |

| Lynne Griffin | ... | Francis (Episodes, 2004) |
 | Trulie MacLeod | ... | Dr. Claire Nathan (Episodes, 2005) |
 | Khan Soroor | ... | Shoaib Khan (Episodes, 2004) |
 | Arlene Duncan | ... | Clinic Nurse / ... (Episodes, 2006) |

| Eli Gabay | ... | John Ricci (Episodes, 2004) |
 | Todd Hofley | ... | Timothy Bosch (Episodes, 2007) |
 | Albert Chung | ... | Techie (Episodes, 2007) |
 | Jonathan Koensgen | ... | Glenn (Episodes, 2006) |
 | Heidi von Palleske | ... | Denise Richman (Episodes, 2004) |
 | Dwayne McLean | ... | Assassin (Episodes, 2004) |
 | Roy Lewis | ... | Dr. Henshaw (Episodes, 2006) |

| Jonathan Keltz | ... | Jeff Riddlemeyer (Episodes, 2007) |

| Michelle Nolden | ... | Dr. Lauren Foley (Episodes, 2004) |
 | Victoria Fodor | ... | Dr. Sally Crick / ... (Episodes, 2006-2007) |

| Austin Renfrey | ... | Young David (Episodes, 2006) |

| Caroline Cave | ... | Rebecca McKinley (Episodes, 2004) |
 | Craig Eldridge | ... | Docteur (Episodes, 2005) |
 | Suresh John | ... | Garde de la Sécurité / ... (Episodes, 2006) |

| Austin Macdonald | ... | Boy at the lake / ... (Episodes, 2006) |

| Michael C. Newsome | ... | Chris Allen (Episodes, 2007) |
 | Kathleen Laskey | ... | Dr. Ruth Bruen (Episodes, 2008) |
 | Amanda Martínez | ... | Isobel Munoz (Episodes, 2008) |

| Pascal Petardi | ... | Rico (Episodes, 2008) |
 | Rob Stewart | ... | Dr. Martin Cove (Episodes, 2008) |
|
| Shane Kinnear | .... | producteur / co-producteur (Episodes, 2004-2007) |
| John L'Ecuyer | .... | producteur creative (Episodes, 2006) |
| Tom Chehak | .... | producteur exécutif (Episodes, 2004-2006) |
| Scott Garvie | .... | producteur exécutif / producteur (Episodes, 2004-2006) |
| Christina Jennings | .... | producteur exécutif / producteur (Episodes, 2004-2006) |
| Emanuel 'Manny' Danelon | .... | producteur exécutif / producteur (Episodes, 2004-2007) |
| Laura Harbin | .... | co-producteur (Episodes, 2004-2005) |
| Virginia Rankin | .... | producteur (Episodes, 2004-2005) |
| Jamie Paul Rock | .... | producteur (Episodes, 2006) |
| Brian Gibson | .... | producteur exécutif (Episodes, 2006) |
| Avrum Jacobson | .... | co-producteur (Episodes, 2006) |
| Julie Lacey | .... | Associé producteur (Episodes, 2006) |
| Laurie McLarty | .... | co-producteur (Episodes, 2006) |
| |
|
| Alan deGraaf | .... | mixer réenregistrement son (Episodes, 2004-2008) |
| John Gare | .... | mixer réenregistrement son (Episodes, 2004-2008) |
| Joe Mancuso | .... | editeur de dialogue (Episodes, 2004-2008) |
| Brian Mellersh | .... | opetateur bras de prolongement (Episodes, 2004-2006) |
| Devlin Ford | .... | assistant mixeur de réenregistrement du son (Episodes, 2006-2007) |
| Matthew Hussey | .... | premier assistant éditeur du son (Episodes, 2006-2007) |
| Matt Kaitila | .... | opetateur bras de prolongement (Episodes, 2008) |
| John Dykstra | .... | mixer réenregistrement son (Episodes, 2006) |
| John Loranger | .... | éditeur des effets de son / premier assistant éditeur du son (Episodes, 2006-2007) |
| Robert Turi | .... | opetateur bras de prolongement (Episodes, 2008) |
| Steve Hammond | .... | artiste foley (Episodes, 2004-2006) |
| David K. Grant | .... | sound recordist: second unit (Episodes, 2007) |
|
| Richard Calistan | .... | éditeur son (episodes inconnus) |
| Stephen Cheung | .... | mixer adr (episodes inconnus) |
| Dave Fritz | .... | assistant adr recordist (episodes inconnus) |
| Randy Wilson | .... | enregistreur foley (episodes inconnus) |
| |
|
| Judy Chui | .... | manager emplacement (Episodes, 2004-2008) |
| Duncan Morin | .... | services légaux (Episodes, 2004-2006) |
| Justin Beck | .... | assistant production / secrétaire production / ... (Episodes, 2007-2008) |
| Eric Henry | .... | assistant production (Episodes, 2006) |
| Rohan Kelly | .... | trainee assistant accountant (Episodes, 2006) |
| Jason Krauskopf | .... | assistant au producteur / secrétaire production (Episodes, 2006) |
| Dave Wood | .... | assistant production (Episodes, 2007) |
| Dan Feddern | .... | assistant location manager (Episodes, 2008) |
| Devjani Raha | .... | story department coordinator (Episodes, 2006) |
| Regina Petrik | .... | service de fabrication clé (Episodes, 2007) |
| Darryl Boulley | .... | story coordinator (Episodes, 2007) |
| Graham Clegg | .... | éditeur de l'histoire exécutif (Episodes, 2008) |
| Aled Edwards | .... | scientific consultant (Episodes, 2004-2006) |
| Avrum Jacobson | .... | éditeur de l'histoire exécutif / developed for television (Episodes, 2004-2006) |
| Angela Latorre | .... | assistant coordonnatrice de production (Episodes, 2006) |
| Karen Patterson Bowden | .... | superviseur (Episodes, 2004-2006) |
| Jason Sherman | .... | éditeur de l'histoire exécutif / developed for television (Episodes, 2004-2005) |
| Todd Shannon Jr. | .... | water safety (Episodes, 2005-2007) |
| Elmer Jones | .... | manager emplacement (Episodes, 2004-2006) |
| Lisa Lavorato | .... | comptable production (Episodes, 2004-2005) |
| Lara McKinnon | .... | associate story editor (Episodes, 2004-2005) |
| Tracey Forbes | .... | éditeur de l'histoire exécutif (Episodes, 2005-2006) |
| Tina Vacalopoulos | .... | assistant coordonnatrice de production (Episodes, 2006) |
| Lindsay Somers | .... | médecin du plateau (Episodes, 2007) |
|
| Scott Brophy | .... | coordinateur production (episodes inconnus, 2005-2006) |
| Mark Alleyne | .... | assistant de production emplacement (episodes inconnus) |
| Sue Baldaro | .... | publiciste (episodes inconnus) |
| Jeremy Boxen | .... | coordinateur script (episodes inconnus) |
| Rebecca Herr | .... | publicity coordinator (episodes inconnus) |
| Miriam Laurence | .... | dialect coach: pre-production (episodes inconnus) |
| Sandy Lewis | .... | second comptable assistant (episodes inconnus) |
| Pete Nilson | .... | Traiteur (episodes inconnus) |
| Jeremy Pinard | .... | assistant de production emplacement (episodes inconnus) |
| Susan Rosset | .... | premier assistant comptable (episodes inconnus) |
| Chris Sheasgreen | .... | assistant production (episodes inconnus) |
| Michael Stoyanov | .... | secrétaire production (episodes inconnus) |
| Drew Taylor | .... | assistant location manager (episodes inconnus) |
| |