
| Kevin Conway | ... | The Control Voice / ... (145 episodes, 1995-2002) |
 | Alex Diakun | ... | Nicholas Prentice / ... (8 episodes, 1995-2001) |
 | Eric Schneider | ... | Alien Inquisitor / ... (8 episodes, 1995-2001) |

| Garvin Cross | ... | Agent Bauer / ... (6 episodes, 1995-2000) |
 | Larry Musser | ... | Clerk / ... (6 episodes, 1995-2001) |

| Kavan Smith | ... | Allan / ... (5 episodes, 1995-2001) |
 | Nathaniel DeVeaux | ... | Captain / ... (5 episodes, 1995-1999) |
 | Scott Swanson | ... | Emil Dobkins / ... (5 episodes, 1995-1999) |
 | Tom Butler | ... | Charlie Bouton / ... (5 episodes, 1995-2001) |

| Andrew Airlie | ... | Don / ... (5 episodes, 1996-2002) |
 | Kristin Lehman | ... | Janet Marshall / ... (4 episodes, 1996-2001) |

| David McNally | ... | Pete / ... (4 episodes, 1996-2000) |

| William deVry | ... | Ben / ... (4 episodes, 1996-2000) |
 | Tom Heaton | ... | Crazed Man / ... (4 episodes, 1996-2001) |
 | Bruce Harwood | ... | Dr. Avery Strong / ... (4 episodes, 1995-1999) |

| Michael Kopsa | ... | Commander Ivers / ... (4 episodes, 1996-1999) |
 | John Novak | ... | Dave Pettigrew / ... (4 episodes, 1995-1999) |
 | Robert Lewis | ... | Commander Guy LeClerc / ... (4 episodes, 1995-2000) |

| Robert Moloney | ... | Agent Pinter / ... (4 episodes, 1995-2000) |

| Barry W. Levy | ... | Colonel Bell / ... (4 episodes, 1995-1999) |
 | Joanna Piros | ... | News Anchor / ... (4 episodes, 1995-1999) |
 | Matthew Walker | ... | Kra'dok / ... (4 episodes, 1995-2001) |

| Scott Hylands | ... | Colonel Roger Tennent / ... (4 episodes, 1996-2001) |

| Roger R. Cross | ... | Bartender / ... (4 episodes, 1995-2001) |

| Frank C. Turner | ... | Elder / ... (4 episodes, 1995-2001) |

| Benz Antoine | ... | Fence Guard / ... (4 episodes, 1998-1999) |

| Erica Carroll | ... | Claudia / ... (4 episodes, 2000-2002) |
 | Peter Outerbridge | ... | Dr. Andy Groenig / ... (3 episodes, 1995-2001) |

| Jessica Steen | ... | Gina Beaumont / ... (3 episodes, 1996-2000) |

| Ryan Reynolds | ... | Paul Nodel / ... (3 episodes, 1995-1998) |
 | Ken Pogue | ... | Dean Hardwick / ... (3 episodes, 1996-1998) |
 | David Cubitt | ... | Colonel Faber / ... (3 episodes, 1995-2001) |
 | Gary Chalk | ... | Detective Barnett / ... (3 episodes, 1995-2000) |
 | Jill Teed | ... | Carolyn / ... (3 episodes, 1998-2000) |
 | Kevin McNulty | ... | Commander / ... (3 episodes, 1995-2000) |
 | Ken Camroux | ... | Admiral Jones / ... (3 episodes, 1995-1997) |

| Aaron Pearl | ... | Clark / ... (3 episodes, 1996-2000) |
 | Susan Hogan | ... | Dr. Marissa Golding / ... (3 episodes, 1996-1998) |
 | Ocean Hellman | ... | Fern / ... (3 episodes, 1997-2001) |

| Gerard Plunkett | ... | Admiral Birch / ... (3 episodes, 1997-2001) |
 | Vincent Gale | ... | Corporal Hawthorne (3 episodes, 1998-2000) |

| Sarah Strange | ... | Lisa / ... (3 episodes, 1995-1998) |
 | Dale Wilson | ... | Frank McKenna / ... (3 episodes, 1996-2000) |
 | Malcolm Stewart | ... | Daniel Tenzer / ... (3 episodes, 1996-1999) |
 | Andrew Johnston | ... | DeWitt / ... (3 episodes, 1995-1999) |
 | Blu Mankuma | ... | Captain John Owens / ... (3 episodes, 1995-2000) |

| Jerry Wasserman | ... | Dr. Silcase / ... (3 episodes, 1995-2000) |
 | Garwin Sanford | ... | Dom Pardo / ... (3 episodes, 1996-2001) |
 | Don MacKay | ... | Dr. Link / ... (3 episodes, 1995-1999) |

| John Tench | ... | Alex / ... (3 episodes, 1996-1998) |
 | Joel Palmer | ... | Andrew Rosman / ... (3 episodes, 1995-1999) |

| Lorena Gale | ... | Committee Member / ... (3 episodes, 1997-1999) |
 | Michael St. John Smith | ... | Angus Wheaton / ... (3 episodes, 1997-1999) |

| William B. Davis | ... | Dr. Biemler / ... (3 episodes, 1995-2001) |

| Ken Tremblett | ... | Businessman / ... (3 episodes, 1995-2001) |

| Eric Keenleyside | ... | Friedkin / ... (3 episodes, 1996-1999) |

| Fulvio Cecere | ... | Det. Richard Jacobs / ... (3 episodes, 1995-2000) |
 | David Lewis | ... | Deputy / ... (3 episodes, 1996-2001) |

| Adam Harrington | ... | Billy Valentine / ... (3 episodes, 1996-1999) |
 | P. Lynn Johnson | ... | Lucy / ... (3 episodes, 1995-2001) |
 | Peter Bryant | ... | Commander Sullivan / ... (3 episodes, 1996-1999) |

| Doug Jones | ... | Alien / ... (3 episodes, 1998) |
 | Scott Owen | ... | Collins / ... (3 episodes, 1995-2000) |

| Angela Moore | ... | African American Woman / ... (3 episodes, 1996-1999) |

| William MacDonald | ... | FBI Special Agent Grant / ... (3 episodes, 1995-2001) |

| David Neale | ... | Commander Richard Gordon / ... (3 episodes, 1995-1999) |
 | Allixandra East | ... | Isabelle Bixel / ... (3 episodes, 1996-2000) |

| Devin Douglas Drewitz | ... | Isaac / ... (3 episodes, 1998-2001) |

| Mark Gibbon | ... | Bailiff / ... (3 episodes, 1997-2000) |
 | Matthew Prior | ... | Boy / ... (3 episodes, 1998-1999) |
 | G. Patrick Currie | ... | Ben / ... (3 episodes, 1999-2001) |
 | Crystal Cass | ... | Alien / ... (3 episodes, 1996-1998) |
 | Jennifer Sterling | ... | Detective Meacham / ... (3 episodes, 1997-2000) |
 | Russell Ferrier | ... | Cop / ... (3 episodes, 1996-2001) |
 | Judith Maxie | ... | Judge / ... (3 episodes, 1996-2000) |
 | Kyra Azzopardi | ... | Catherine / ... (3 episodes, 1998-2001) |
 | Christina Jastrzembska | ... | Karen Miller / ... (3 episodes, 1997-2001) |
 | David Cameron | ... | Medic / ... (3 episodes, 1995-1998) |

| Barbara Tyson | ... | Carrie Emerson / ... (3 episodes, 1995-2002) |

| Gabrielle Miller | ... | Charlotte Nichols / ... (3 episodes, 1996-2002) |

| Gillian Barber | ... | Fisk / ... (3 episodes, 1995-2001) |
 | Kathleen Duborg | ... | Hope / ... (3 episodes, 1997-2002) |

| Shaun Johnston | ... | Cop / ... (3 episodes, 1995-2001) |
 | Jesse Moss | ... | Jason Stewart / ... (3 episodes, 1995-2001) |
 | Chilton Crane | ... | Catharine McCarty / ... (3 episodes, 1997-2001) |

| Robert Weiss | ... | Blue Tech / ... (3 episodes, 1997-2002) |

| Darryl Scheelar | ... | Ben / ... (3 episodes, 1998-2002) |

| Robert Patrick | ... | Major John Skokes (2 episodes, 1995-1996) |

| Amanda Plummer | ... | Dr. Theresa Givens (2 episodes, 1996-2000) |

| Saul Rubinek | ... | Aaron Zgierski / ... (2 episodes, 1995-1999) |
 | Kelly Rowan | ... | Isabelle Pierce / ... (2 episodes, 1995-1998) |
 | Robert Wisden | ... | Justin Wells / ... (2 episodes, 1995-1999) |
 | Nicole de Boer | ... | Cadet 2nd Class Bree Tristan / ... (2 episodes, 1995-1998) |

| Kate Vernon | ... | Judy Warren / ... (2 episodes, 1995-1998) |
 | Erich Anderson | ... | Dr. Deanston / ... (2 episodes, 1996-2001) |

| Catherine Mary Stewart | ... | Brooke Miller / ... (2 episodes, 1996-2001) |

| Geraint Wyn Davies | ... | David / ... (2 episodes, 1996-2001) |

| Victor Garber | ... | Dr. Ben McCormick / ... (2 episodes, 1996-2000) |
 | Ian Tracey | ... | Declan McMahon / ... (2 episodes, 1996-2000) |

| Tanya Allen | ... | Amy Barrett / ... (2 episodes, 1998-2001) |

| Peter Stebbings | ... | Luke / ... (2 episodes, 1998-2000) |
 | Nicholas Lea | ... | Jacob Hardy / ... (2 episodes, 1998-1999) |
 | Maurice Dean Wint | ... | Capt. Roger Kimbro / ... (2 episodes, 1998-1999) |

| Leslie Hope | ... | Darcy Kipling / ... (2 episodes, 1999-2000) |

| Len Cariou | ... | Doc Wells / ... (2 episodes, 1995-2000) |
 | Frank Whaley | ... | Cliff Unger / ... (2 episodes, 1995-2000) |

| Justin Louis | ... | Father John Royce / ... (2 episodes, 1995-1999) |

| Jonathan Scarfe | ... | Charlie Walters / ... (2 episodes, 1996-2000) |

| Nancy Sorel | ... | Dana van Owen / ... (2 episodes, 1997-2000) |

| Claire Rankin | ... | Ariel / ... (2 episodes, 1998-2000) |

| Michael Shanks | ... | Dr. Will Olsten / ... (2 episodes, 1998-2000) |
 | Tom McBeath | ... | Detective Roth / ... (2 episodes, 1995-1998) |
 | Sofia Shinas | ... | Mary 25 / ... (2 episodes, 1995-1998) |

| Don S. Davis | ... | Detective Wilson / ... (2 episodes, 1995) |

| Nick Mancuso | ... | Father / ... (2 episodes, 1996-2001) |

| Nicole Oliver | ... | Heather Cattrell / ... (2 episodes, 1996-2000) |

| Timothy Webber | ... | Dep. Middleton / ... (2 episodes, 1996-1998) |

| Emmanuelle Vaugier | ... | Lisa Dobkins / ... (2 episodes, 1998-1999) |
 | Joel Grey | ... | Dr. Nathan Seward / ... (2 episodes, 1999-2000) |

| Robbi Chong | ... | Hope Wilson / ... (2 episodes, 1999) |
 | Colleen Rennison | ... | Jillian Rosman / ... (2 episodes, 1995-2000) |

| Tom Cavanagh | ... | Carl Toman / ... (2 episodes, 1995-1999) |
 | Noah Heney | ... | James Kendal / ... (2 episodes, 1996-1999) |

| Teryl Rothery | ... | Dr. Lucy Cole / ... (2 episodes, 1996-1997) |
 | Bill Dow | ... | Doc Fink / ... (2 episodes, 1997-1998) |

| Hiro Kanagawa | ... | Ron Hikida / ... (2 episodes, 1998-2000) |

| Lynda Boyd | ... | Danielle Buchanan / ... (2 episodes, 1998-1999) |
 | Michelle Beaudoin | ... | Beth / ... (2 episodes, 1995-2001) |
 | Kerry Sandomirsky | ... | Kristen O'Keefe / ... (2 episodes, 1995-1998) |

| Steve Bacic | ... | Griff / ... (2 episodes, 1996-1997) |
 | Donnelly Rhodes | ... | General James Eiger / ... (2 episodes, 1996-1997) |
 | Michael Ontkean | ... | Dr. Charles McCamber / ... (2 episodes, 1997-2000) |
 | Britt McKillip | ... | Brook Bouton / ... (2 episodes, 1998-1999) |

| Camille Mitchell | ... | Leader of Hyacinth / ... (2 episodes, 1998) |
 | Brent Stait | ... | Vince Baxter (2 episodes, 1999-2000) |

| Patricia Harras | ... | Amy / ... (2 episodes, 1995-2000) |

| L. Harvey Gold | ... | Dr. Greeson / ... (2 episodes, 1995-1997) |
 | Michael Sarrazin | ... | Marty Kilgore / ... (2 episodes, 1996-1999) |

| Andrew Wheeler | ... | Tony Blake (2 episodes, 1996-1998) |
 | Sam Vincent | ... | Akira Matsumoto / ... (2 episodes, 1996) |

| Alan Scarfe | ... | Dr. Royce / ... (2 episodes, 1997-1998) |
 | Jennifer Copping | ... | Corporal Harrier / ... (2 episodes, 1998-1999) |

| Paul Jarrett | ... | Dr. Franklin Dreiden / ... (2 episodes, 1996-2000) |
 | Heather Hanson | ... | Archer / ... (2 episodes, 1996-1998) |

| Harrison Coe | ... | John Arkelian / ... (2 episodes, 1996-1997) |
 | Adrian Hughes | ... | Boromir / ... (2 episodes, 1996) |

| Ingrid Kavelaars | ... | Angie Palmer / ... (2 episodes, 1997-2001) |

| Bill Cobbs | ... | Joe Dell / ... (2 episodes, 1997-1999) |

| Terence Kelly | ... | General / ... (2 episodes, 1997-1998) |

| Ron Rifkin | ... | Dr. Eric Nodel / ... (2 episodes, 1997-1998) |
 | Cheryl Wilson | ... | Cynthia Walker / ... (2 episodes, 1998-2001) |

| Julie Patzwald | ... | Cammi / ... (2 episodes, 1998-1999) |
 | David Warner | ... | Bill Trenton / ... (2 episodes, 1995-1999) |

| Benjamin Ratner | ... | Blanco / ... (2 episodes, 1995-1998) |

| Jan D'Arcy | ... | Martha Adams / ... (2 episodes, 1995-1996) |

| Dwight McFee | ... | Bruce Johnson / ... (2 episodes, 1996-1998) |

| Don Thompson | ... | Doc / ... (2 episodes, 1998-2000) |
 | Michael Tiernan | ... | Major Braithwaite / ... (2 episodes, 1998-1999) |
 | Linnea Sharples | ... | Kamala Shastri / ... (2 episodes, 2000-2001) |
 | Doug Abrahams | ... | Foreman / ... (2 episodes, 1995-2000) |
 | Shane Meier | ... | Mark / ... (2 episodes, 1995-1997) |
 | Sarah-Jane Redmond | ... | Kelly Risely / ... (2 episodes, 1996-1999) |
 | Peter Yunker | ... | Instructor (2 episodes, 1996-1998) |

| David Kaye | ... | Ed Tupelo / ... (2 episodes, 1997-2000) |

| Jessica Harmon | ... | Little Girl / ... (2 episodes, 1997-1998) |

| Tara Spencer-Nairn | ... | Heather (2 episodes, 1997-1998) |
 | Ron Halder | ... | George White / ... (2 episodes, 1998-1999) |
 | Anthony Ulc | ... | Roger Bowden (2 episodes, 1998-1999) |
 | Derek de Lint | ... | Carl / ... (2 episodes, 1999-2000) |

| Kwesi Ameyaw | ... | Dr. Adam Meares / ... (2 episodes, 2000-2001) |

| Lesley Ewen | ... | Mrs. Dell / ... (2 episodes, 1995-1999) |
 | Paula Shaw | ... | Executive / ... (2 episodes, 1995-1998) |
 | Ken Ryan | ... | Agent Tennyson / ... (2 episodes, 1995-1997) |
 | Colleen Winton | ... | Patricia Fowler / ... (2 episodes, 1995-1997) |
 | Tamsin Kelsey | ... | Dr. Glass / ... (2 episodes, 1995-1996) |

| Debbie Podowski | ... | Justine Vallé / ... (2 episodes, 1995-1996) |
 | Maxine Miller | ... | Helen / ... (2 episodes, 1996-2001) |

| Dean McKenzie | ... | Kellar / ... (2 episodes, 1996-1999) |

| Jason Gray-Stanford | ... | Airman / ... (2 episodes, 1996-1998) |
 | Joe Pascual | ... | Lieutenant Marquez / ... (2 episodes, 1997-1998) |

| Rick Ravanello | ... | Driver / ... (2 episodes, 1997-1998) |
 | Laurie Murdoch | ... | Lawrence / ... (2 episodes, 1998-2001) |
 | Holly Ferguson | ... | Heather / ... (2 episodes, 1999-2001) |
 | Rice Honeywell | ... | Co-Worker / ... (2 episodes, 1999-2000) |
 | Dee Jay Jackson | ... | Guard / ... (2 episodes, 1995-2001) |
 | Bill Croft | ... | Gabriel / ... (2 episodes, 1995-1999) |

| April Telek | ... | Shirley Baxter / ... (2 episodes, 1996-1999) |
 | David Lloyd Austin | ... | Admiral Sergei Yurov / ... (2 episodes, 1997-1998) |
 | Lachlan Murdoch | ... | John Virgil Jr. / ... (2 episodes, 1997-1998) |
 | Ian Robison | ... | Craig / ... (2 episodes, 1998-2001) |
 | Garry Davey | ... | Doctor / ... (2 episodes, 1995) |
 | R. Nelson Brown | ... | Bartender / ... (2 episodes, 1996-2000) |
 | Patrick Keating | ... | GX-17 / ... (2 episodes, 1996-1997) |
 | Corrie Clark | ... | Young Sylvia / ... (2 episodes, 1996) |
 | Brenda McDonald | ... | Mrs. Eikenberry / ... (2 episodes, 1999-2000) |
 | Walter Marsh | ... | Dr. Lambert / ... (2 episodes, 1995-1996) |
 | Scott McNeil | ... | Astronaut / ... (2 episodes, 1996-2001) |
 | Lorraine Landry | ... | Deirdre Laird / ... (2 episodes, 1996-1999) |

| David Longworth | ... | Preacher / ... (2 episodes, 1996-1997) |

| Linden Banks | ... | Dr. Thomas Somerset / ... (2 episodes, 1997-2000) |
 | Lee Taylor | ... | Bailiff / ... (2 episodes, 1997-2000) |

| Tobias Mehler | ... | Eric Nichols / ... (2 episodes, 1997-1998) |

| Kirsten Williamson | ... | Pelé / ... (2 episodes, 1997-1998) |
 | Bart Anderson | ... | Doctor / ... (2 episodes, 1997) |
 | Beverley Elliott | ... | Celeste / ... (2 episodes, 1998-2001) |
 | Derek Peakman | ... | Dr. Pastore / ... (2 episodes, 1998-2001) |
 | Ed Evanko | ... | Jim Holbrook / ... (2 episodes, 1998-2000) |
 | Rob Freeman | ... | Captain Rosen / ... (2 episodes, 1998-2000) |
 | Arnie Walters | ... | Committee Member / ... (2 episodes, 1996-2001) |
 | John Bear Curtis | ... | Blacksmith / ... (2 episodes, 1997-1999) |
 | Marcy Goldberg | ... | Council Member Roark / ... (2 episodes, 1998-2001) |
 | D. Harlan Cutshall | ... | Captain / ... (2 episodes, 1998-2000) |
 | Tim O'Halloran | ... | Man #1 / ... (2 episodes, 1998-2000) |
 | Andrew McIlroy | ... | Hal Kaplan / ... (2 episodes, 1995-1998) |
 | Kamilyn Kaneko | ... | Kelly / ... (2 episodes, 1995-1997) |

| Mitchell Kosterman | ... | FBI Agent / ... (2 episodes, 1995-1996) |
 | J.B. Bivens | ... | Mover / ... (2 episodes, 1995) |
 | Catherine Swing | ... | Nurse / ... (2 episodes, 1996-1998) |
 | Ronin Wong | ... | Doctor #1 / ... (2 episodes, 1997-2001) |

| Gina Chiarelli | ... | Doctor #2 / ... (2 episodes, 1997-2000) |
 | Althea McAdam | ... | Dr. Behrens / ... (2 episodes, 1997-1998) |

| Phillip Mitchell | ... | Mugger / ... (2 episodes, 1998-2000) |
 | Eg Mahan | ... | Alien #2 / ... (2 episodes, 1998) |
 | Karina Carreck | ... | Nurse / ... (2 episodes, 2000-2001) |

| Haig Sutherland | ... | Roy / ... (2 episodes, 2000-2001) |

| Fred Henderson | ... | Acosta / ... (2 episodes, 1995-1998) |

| Adrian Holmes | ... | James / ... (2 episodes, 1996-2000) |

| Betty Linde | ... | Helen Darnell (2 episodes, 1996-1999) |

| Danny Wattley | ... | Dennis Cameron / ... (2 episodes, 1996-1998) |

| Linda Ko | ... | Hanna Sheafer / ... (2 episodes, 1997-2000) |
 | Gerry Rousseau | ... | Bum / ... (2 episodes, 1997-1999) |
 | Mary Ann Skoll | ... | Judith Mason / ... (2 episodes, 1998-1999) |
 | Peter Kelamis | ... | Brain Wakefield / ... (2 episodes, 1999-2000) |
 | Ron Small | ... | Harold Sanborn / ... (2 episodes, 1999-2000) |
 | James Crescenzo | ... | Host / ... (2 episodes, 2000-2001) |
 | Yvonne Campeau | ... | Jaru / ... (2 episodes, 1995) |
 | Robyn Driscoll | ... | Detective (2 episodes, 1996-1999) |

| Richard Leacock | ... | Dairy Guard / ... (2 episodes, 1996-1998) |
 | Claire Riley | ... | Dr. Egan / ... (2 episodes, 1996-1998) |
 | Gordon Tipple | ... | Detective #1 / ... (2 episodes, 1997-2000) |
 | Winston Brown | ... | Male Staff Member / ... (2 episodes, 1998-2000) |
 | Sean Millington | ... | Delta #1 Leader / ... (2 episodes, 1998-2000) |
 | Woody Jeffreys | ... | Beck Sanders / ... (2 episodes, 1999-2000) |
 | Kristina Matisic | ... | News Anchor / ... (2 episodes, 1999-2000) |
 | Klodyne Rodney | ... | Reporter / ... (2 episodes, 1999-2000) |
 | Kymberly Sheppard | ... | Victorine Demon / ... (2 episodes, 1995) |
 | Brent Sheppard | ... | F.B.I. Agent #1 / ... (2 episodes, 1996-2001) |
 | Jonathon Young | ... | Billy / ... (2 episodes, 1997-1998) |
 | Bob Dawson | ... | Mr. Walker / ... (2 episodes, 1998-2000) |
 | Jason Gaffney | ... | Joe Benton / ... (2 episodes, 1998-2000) |
 | Paul Magel | ... | Caleb / ... (2 episodes, 1998-1999) |
 | David Glyn-Jones | ... | Mr. Westbrook / ... (2 episodes, 1997-1999) |
 | John Innes | ... | Priest / ... (2 episodes, 1998-1999) |

| Michael Cram | ... | Father / ... (2 episodes, 1995-1998) |
 | Gary Jones | ... | Duncan / ... (2 episodes, 1995-1996) |
 | Campbell Lane | ... | Noel Bachman / ... (2 episodes, 1996-1999) |
 | Lloyd Berry | ... | Abraham Lincoln Re-Enactor / ... (2 episodes, 1997-2000) |
 | Keith Provost | ... | Bartender / ... (2 episodes, 2000-2001) |
 | Desiree Nicholson | ... | Jenny / ... (2 episodes, 1996-1997) |
 | Howard Siegel | ... | Bum / ... (2 episodes, 1998-2001) |

| Jordan Weller | ... | Teen #2 / ... (2 episodes, 2000-2001) |
 | Kevin Hansen | ... | Deputy / ... (2 episodes, 1996-2000) |

| Maria Louisa Figura | ... | Inga / ... (2 episodes, 1996-1999) |
 | Vincent Walker | ... | Boyfriend / ... (2 episodes, 1999-2000) |
 | Candice Connelly | ... | Mother / ... (2 episodes, 1996-1999) |
 | Clay St. Thomas | ... | Host on TV / ... (2 episodes, 1999-2001) |
 | Dan Shea | ... | Cop / ... (2 episodes, 2000-2001) |

| Lochlyn Munro | ... | Captain Eric Woodward / ... (2 episodes, 1995-2002) |

| John Pyper-Ferguson | ... | Brian Chason / ... (2 episodes, 1996-2001) |

| Laura Harris | ... | Mona Lisa 37X / ... (2 episodes, 1997-2001) |

| Michael Ironside | ... | Ambassador Prosser / ... (2 episodes, 1999-2001) |
 | Martin Cummins | ... | Esterhaus / ... (2 episodes, 1999-2000) |

| Michael Riley | ... | Gerard / ... (2 episodes, 1999-2000) |

| Michael Dorn | ... | Pete Claridge (2 episodes, 1995-2002) |

| Duncan Fraser | ... | Coach Terni / ... (2 episodes, 1996-2001) |
 | Marie Stillin | ... | Allison / ... (2 episodes, 1997-2001) |
 | Jim Byrnes | ... | Gary Latimer / ... (2 episodes, 1998-2002) |
 | David Lovgren | ... | Eric Tanner / ... (2 episodes, 2000-2002) |

| Sarah Deakins | ... | Amanda / ... (2 episodes, 2000-2001) |

| Kim Coates | ... | Colonel Sage / ... (2 episodes, 1995-2002) |
 | Brian Arnold | ... | Newscaster (2 episodes, 1996-2001) |
 | Terry David Mulligan | ... | Chancellor Duncan Wilder (2 episodes, 1997-2001) |

| Biski Gugushe | ... | Chief Technician / ... (2 episodes, 1998-2001) |

| Ty Olsson | ... | Franklin / ... (2 episodes, 2000-2002) |
 | Brittney Irvin | ... | Judith Wilder / ... (2 episodes, 1997-2001) |
 | Gerry South | ... | Matt / ... (2 episodes, 2000-2001) |
 | Kate Twa | ... | Dr. Annaud (2 episodes, 1997-1999) |

| Jane Sowerby | ... | Ruth / ... (2 episodes, 1998-2002) |
 | Jay Brazeau | ... | Bernard Katz / ... (2 episodes, 1998-2001) |
 | Dean Marshall | ... | Captain William Hinman / ... (2 episodes, 1999-2002) |
 | John R. Taylor | ... | Leon / ... (2 episodes, 2000-2002) |

| Tatiana Szalay | ... | Kyra Look-Alike / ... (2 episodes, 2000) |

| Ron Selmour | ... | Carl / ... (2 episodes, 1998-2002) |

| Grace Park | ... | Satchko / ... (2 episodes, 1997-2001) |
 | Deni DeLory | ... | Alexis / ... (2 episodes, 1999-2001) |

| Dean Wray | ... | Al McDermot / ... (2 episodes, 1999-2001) |

| Catherine Lough Haggquist | ... | Eileen / ... (2 episodes, 1995-2001) |
 | Zachary Ansley | ... | Adrielo / ... (2 episodes, 1997-2001) |

| Ian Marsh | ... | Hing Centurion / ... (2 episodes, 1999-2001) |
 | Leanne Adachi | ... | Captain Alice Wheeler / ... (2 episodes, 2001-2002) |

| Michasha Armstrong | ... | Hmong / ... (2 episodes, 1999-2001) |
 | Yvonne Myers | ... | Guard / ... (2 episodes, 2000-2001) |
 | Marcel Maillard | ... | Homeless Man / ... (2 episodes, 2000-2001) |
 | Patty 'Gracie' Aylward | ... | Lucy (2 episodes, 2000-2002) |
|
| Adam Howard | .... | visual effects: Digital Magic (140 episodes, 1995-2002) |
| Lisa Atkinson | .... | visual effects producer: ViewStudio (43 episodes, 1995-1996) |
| Patrick Halm | .... | visual effects coordinator (42 episodes, 1999-2000) |
| John Gajdecki | .... | visual effects (14 episodes, 1995) |
| Pauline Burns | .... | visual effects coordinator (12 episodes, 1999-2000) |
| Steve Anker | .... | visual effects supervisor (9 episodes, 1996-2000) |
| Paul Boyington | .... | visual effects (6 episodes, 1995) |
| Bruce Woloshyn | .... | digital compositing artist (6 episodes, 1996-2001) |
| Bruce Turner | .... | visual effects / visual effects assistant (5 episodes, 1995) |
| Robert Habros | .... | visual effects supervisor / visual effects executive (4 episodes, 1997-2001) |
| Paolo G. Venturi | .... | graphics supervisor (4 episodes, 1997-1999) |
| Robin Hackl | .... | compositing lead: Image Engine / visual effects supervisor: Image Engine (4 episodes, 2001-2002) |
| Christopher Mossman | .... | executive producer: Image Engine (4 episodes, 2001-2002) |
| Lisa Turner | .... | visual effects coordinator: Image Engine (4 episodes, 2001-2002) |
| Simon Lacey | .... | visual effects supervisor / visual effects coordinator (3 episodes, 1997-1998) |
| Joe Farrell | .... | digital artist (3 episodes, 1998-2001) |
| Steven Meyer | .... | digital artist (3 episodes, 1999-2000) |
| Benjamin V. Funk | .... | graphics supervisor (3 episodes, 2000) |
| Russ Dionne | .... | graphics artist (3 episodes, 2001) |
| Matthew Gore | .... | visual effects coordinator (2 episodes, 1996-1998) |
| Kent Matheson | .... | matte painter (2 episodes, 1998) |
| Gord Dunick | .... | graphics supervisor / visual effects supervisor (2 episodes, 1999-2000) |
| Sandra Almond | .... | associate visual effects supervisor (2 episodes, 2001) |
|
| Kathryn Bolt | .... | digital compositor (unknown episodes, 2001) |
| Geoff Anderson | .... | visual effects onset supervisor (unknown episodes) |
| Tom Archer | .... | digital compositing artist (unknown episodes) |
| Mark Benard | .... | digital effects artist (unknown episodes) |
| Rod Bland | .... | 3D animator (unknown episodes) |
| Christian Boudman | .... | digital compositing artist (unknown episodes) |
| Mark Breakspear | .... | digital compositing artist (unknown episodes) |
| Rob Bredow | .... | digital artist (unknown episodes) |
| Steward Burris | .... | computer graphic artist: North West Imaging & FX (unknown episodes) |
| Doug Campbell | .... | Inferno artist (unknown episodes) |
| Christopher Chen | .... | digital artist / digital effects producer (unknown episodes) |
| Dug Claxton | .... | digital compositor (unknown episodes) |
| Ryan Cronin | .... | 3D animator (unknown episodes) |
| Kristin Dearholt | .... | rotoscope artist (unknown episodes) |
| Debora Dunphy | .... | digital compositor (unknown episodes) |
| Ben Funk | .... | digital compositing artist (unknown episodes) |
| Gudrun Heinze | .... | digital compositing artist (unknown episodes) |
| Sylvain Huard | .... | 3D animator (unknown episodes) |
| Aruna Inversin | .... | digital compositing artist (unknown episodes) |
| Jay Mark Johnson | .... | digital matte painter (unknown episodes) |
| Alan Kapler | .... | CG effects animator (unknown episodes) |
| James Lau | .... | digital artist (unknown episodes) |
| Rosano Lepri | .... | digital compositing artist (unknown episodes) |
| John Lesavage | .... | visual effects cinematographer (unknown episodes) |
| Todd Liddiard | .... | digital compositor (unknown episodes) |
| Colin Liggett | .... | digital compositing artist (unknown episodes) |
| Kimberley Liptrap | .... | 3D animator (unknown episodes) |
| Anthony Mabin | .... | digital effects supervisor (unknown episodes) |
| Shelly Morrow | .... | digital compositor (unknown episodes) |
| Brian Moylan | .... | digital compositing artist (unknown episodes) |
| Marianne O'Reilly | .... | visual effects producer: Rainmaker (unknown episodes) |
| Stephen Pepper | .... | digital compositing artist (unknown episodes) |
| Eric Petey | .... | digital artist: Lost Boys Studios (unknown episodes) |
| Christine Petrov | .... | digital compositing artist (unknown episodes) |
| Paul Patrick Quinn | .... | visual effects producer (unknown episodes) |
| Marc Roth | .... | 3D animator (unknown episodes) |
| Wes Sargent | .... | 3D animator (unknown episodes) |
| Thomas Schelesny | .... | computer graphic artist (unknown episodes) |
| Kennedy Shah | .... | motion control operator (unknown episodes) |
| Elaine Sipos | .... | visual effects artist (unknown episodes) |
| Jessica Sjoblom | .... | digital compositing artist (unknown episodes) |
| Joel Skeete | .... | digital compositor (unknown episodes) |
| Christopher Stewart | .... | 3D animator (unknown episodes) |
| Trevor Strand | .... | digital compositing artist (unknown episodes) |
| Jaison Stritch | .... | 3D visual effects supervisor (unknown episodes) |
| Matthew Talbot-Kelly | .... | digital compositor / digital matte painter (unknown episodes) |
| Thomas Turnbull | .... | effects supervisor (unknown episodes) |
| Adrian Van Der Park | .... | 3D animator (unknown episodes) |
| Jeannie Walasek | .... | digital effects coordinator (unknown episodes) |
| Noel Wright | .... | 3D animator (unknown episodes) |
| Aiden Zanini | .... | computer graphics supervisor / visual effects production assistant (unknown episodes) |
| |
|
| Leslie Stevens | .... | story editor / program consultant (152 episodes, 1995-2002) |
| Erin Fitzgerald | .... | adr walla group (109 episodes, 1995-1999) |
| Danielle de Smit | .... | script supervisor (66 episodes, 1995-2002) |
| Joseph Stefano | .... | executive consultant / senior advisor (33 episodes, 1995-2001) |
| Zane Grewer | .... | first-aid/craft service / key first aid craft service (27 episodes, 1999-2000) |
| Kathleen Higgins | .... | script coordinator (26 episodes, 1997-1998) |
| Donald R. Beck | .... | title designer (23 episodes, 1995-1997) |
| Danielle Stokdyk | .... | assistant to executive producers / representative: Trilogy Entertainment North / ... (21 episodes, 1995-1997) |
| James Nadler | .... | supervising executive: Atlantis (21 episodes, 1995) |
| Mark Stern | .... | supervising executive: Trilogy (21 episodes, 1995) |
| Tracey Renyard | .... | assistant location manager (18 episodes, 1997-1998) |
| Tom Tennisco | .... | assistant script coordinator (18 episodes, 1997-1998) |
| Victoria James | .... | assistant to co-executive producer / script coordinator (16 episodes, 1995-1997) |
| Ian Overend | .... | location manager (15 episodes, 1995-2000) |
| Helen MaComb | .... | production coordinator (15 episodes, 1995-1996) |
| Jonathan Glassner | .... | creative consultant (14 episodes, 1995-1996) |
| Manny Coto | .... | creative consultant / executive story consultant (13 episodes, 1995) |
| Brad Wright | .... | executive story consultant (13 episodes, 1995) |
| Michael Berlin | .... | executive script consultant (10 episodes, 1995) |
| Eric Estrin | .... | executive script consultant (10 episodes, 1995) |
| Julie Fitzgerald | .... | assistant to executive producer / assistant to executive producers (10 episodes, 1999-2001) |
| Greg Jackson | .... | location manager (9 episodes, 1995-2001) |
| Lisa Wilder | .... | script supervisor (8 episodes, 1996-2001) |
| Gordon Smith | .... | production accountant (8 episodes, 1997-2000) |
| Don Knodel | .... | location manager (7 episodes, 1995) |
| Erin Smith | .... | production coordinator (7 episodes, 1995) |
| Cindy Mjolsness | .... | script coordinator (7 episodes, 1999-2000) |
| Ellen Rand | .... | assistant to executive producer / assistant to executive producers (7 episodes, 2000-2001) |
| Temple Anderson | .... | script supervisor (6 episodes, 1995) |
| Kate Peterson | .... | production coordinator (6 episodes, 1995) |
| Mary Liebmann | .... | assistant to co-executive producer (5 episodes, 1995) |
| A L Katz | .... | advisor (5 episodes, 1999-2000) |
| Kelly Moon | .... | script supervisor (4 episodes, 1995-1999) |
| Naren Shankar | .... | advisor / executive story consultant (4 episodes, 1997-1999) |
| Scott Peters | .... | story editor (4 episodes, 1999) |
| Catherine Howard | .... | production coordinator (4 episodes, 2000) |
| Brenda Kyle | .... | production coordinator (4 episodes, 2000) |
| Marissa Perez | .... | assistant to executive producer (4 episodes, 2000) |
| Sue Valencia | .... | legal counsel / supervising executive: Alliance Atlantis (3 episodes, 1996-1999) |
| Haley Fox | .... | assistant to executive producer (3 episodes, 1999) |
| Julia Neville | .... | production coordinator (3 episodes, 1999) |
| Trevor Wilde | .... | assistant to executive producer (3 episodes, 1999) |
| Anita Meehan-Truelove | .... | production coordinator (3 episodes, 2001) |
| Shelley Crawford | .... | script supervisor (2 episodes, 1995) |
| Stephanie Rossel | .... | script supervisor (2 episodes, 1995) |
| Duane Bradley | .... | key animal trainer (2 episodes, 2000) |
| James Crocker | .... | story editor (2 episodes, 2001) |
| Robert Murdoch | .... | location manager (2 episodes, 2001) |
| Elisabeth van Assum | .... | script coordinator (2 episodes, 2001) |
|
| Will Bryant | .... | story department (unknown episodes, 1995-1996) |
| Christopher M. Allan | .... | assistant location manager (unknown episodes) |
| Doreen Beaulac | .... | first assistant accountant (unknown episodes) |
| Mark Bishop | .... | production assistant (unknown episodes) |
| Andrea Boorman | .... | second assistant production coordinator (unknown episodes) |
| Alan Code | .... | production assistant (unknown episodes) |
| Kim Cowan | .... | media coordinator (unknown episodes) |
| Ian Doig | .... | animal trainer (unknown episodes) |
| Dana Dubé | .... | animal trainer (unknown episodes) |
| Jason Gibb | .... | production assistant (unknown episodes) |
| Bonnie Judd | .... | trainer (unknown episodes) |
| Ryan Judd | .... | assistant animal trainer (unknown episodes) |
| David Kurvers | .... | video and computer playback operator (unknown episodes) |
| David Langtry | .... | computer playback operator (unknown episodes) |
| Pancho Mansfield | .... | network executive (unknown episodes) |
| Andrew Marles | .... | production assistant (unknown episodes) |
| Tyler McIntyre | .... | production assistant (unknown episodes) |
| Jamie Payton | .... | wrangler (unknown episodes) |
| Geoff Redknap | .... | puppeteer (unknown episodes) |
| Andrew Simpson | .... | animal trainer (unknown episodes) |
| Bill Terezakis | .... | puppeteer (unknown episodes) |
| Paolo G. Venturi | .... | graphics supervisor (unknown episodes) |
| Shane Zander | .... | laboratory assistant (unknown episodes) |
| |