Colin Ferguson
Jack Carter (77 eps)
Salli Richardson-Whitfield
Allison Blake (77 eps)
Joe Morton
Henry Deacon (77 eps)
Erica Cerra
Jo Lupo (77 eps)
Neil Grayston
Douglas Fargo / S.A.R.A.H. (77 eps)
Jordan Danger
Zoe Carter (77 eps)
Matt Frewer
Jim Taggart (77 eps)
Chris Gauthier
Vincent (77 eps)
Niall Matter
Zane Donovan (65 eps)
Christopher Jacot
Larry Haberman (65 eps)
Ed Quinn
Nathan Stark (64 eps)
Debrah Farentino
Beverly Barlowe (59 eps)
Adrienne Carter
Pilar (52 eps)
Jaime Ray Newman
Tess Fontana (39 eps)
Kavan Smith
Deputy Andy 2.0 (38 eps)
Vanya Asher
Lucas (31 eps)
James Callis
Dr Trevor Grant (22 eps)
Frances Fisher
Eva Thorne (18 eps)
Tembi Locke
Grace Monroe (18 eps)
Felicia Day
Holly Marten (13 eps)
Rob LaBelle
Walter Perkins (12 eps)
Shayn Solberg
Spencer Martin (12 eps)
Trevor Jackson
Kevin Blake (12 eps)
Meshach Peters
Kevin Blake (10 eps)
Barclay Hope
Gen. Mansfield (8 eps)
Wil Wheaton
Isaac Parrish (8 eps)
Ever Carradine
Lexi Carter (8 eps)
Keith Wilson
Baker Twin #1 (5 eps)
Bryan Wilson
Baker Twin #2 (5 eps)
Tamlyn Tomita
Kim Anderson (5 eps)
Bridget Hoffman
Computer Voice (5 eps)
Jordenn Thompson
Jenna (4 eps)
Ming-Na Wen
U.S. Senator Michaela Wen (4 eps)
Alan Legros
Seth Osbourne (3 eps)
Sonja Bennett
Callie Curie (3 eps)
Martin Cummins
Dekker (3 eps)
Elias Toufexis
Adam Barlowe (3 eps)
Martin Christopher
Doctor Reviving Jake (3 eps)
Roger Cross
Major William Shaw (3 eps)
Forbes Angus
Dr Selikoff (2 eps)
Nevaeh Kidd
Jenna Blake (2 eps)
Jennifer Clement
Susan Perkins (2 eps)
Zak Ludwig
Brian Perkins (2 eps)
Garwin Sanford
Congressman Faraday (2 eps)
Michael Kopsa
Doctor (2 eps)
Olivia d'Abo
Dr. Abby Carter (2 eps)
Sharon Taylor
Stark's Doctor (2 eps)
Cameron Park
Dr. Rob Matthew (2 eps)
Karissa Tynes
Stephanie (2 eps)
Gabrielle Rose
Carol Taylor (2 eps)
Michael Brock
Jasper Cole (2 eps)
Paul Moniz de Sa
Lincoln (2 eps)
Jocelyne Loewen
Doris Stokes (2 eps)
Paula Lindberg
Neural Engineer #1 (2 eps)
Leela Savasta
Julia Golden (2 eps)
Jeff Pangman
Duncan (2 eps)
Noah Dalton Danby
Major Ryan (2 eps)
Marie West
Singer (2 eps)
Hamza Adam
Soldier #2 (2 eps)
Paul Lazenby
MP #2 (2 eps)
Wallace Shawn
Warren Hughes (2 eps)
Lexa Doig
Dr. Anne Young (2 eps)
Ty Olsson
Deputy Andy / Sheriff Andy (2 eps)
Garry Chalk
Colonel Briggs (1 eps)
Alan Ruck
Dr Hood (1 eps)
Jamie Kennedy
Dr Ramsey (1 eps)
Teryl Rothery
Diane Lancaster (1 eps)
Greg Germann
Professor Warren King (1 eps)
Maury Chaykin
Sheriff / Major William Cobb (1 eps)
Michael Shanks
Christopher Daktylos (1 eps)
Eugene Byrd
Dr Michael Clark (1 eps)
Dondré Whitfield
Dr Marcus Blake (1 eps)
C. Douglas Quan
Dr Horikoshi (1 eps)
Grant Imahara
scientifique (1 eps)
Allison Scagliotti
Claudia Donovan (1 eps)
Peter Brown
Med Tech (1 eps)
Edward James Olmos
First sled dog (1 eps)
Jim Parsons
Carl the Jeep (1 eps)
Benjamin B. Smith
Oppenheimer (1 eps)
Ian Carter
Chief Marshal (1 eps)
Leanne Merrett
Special Agent Miller (1 eps)
Chris Burns
Buzz (1 eps)
Kevin D. Murray
Charley (1 eps)
Tyler McClendon
Young Corporal (1 eps)
Kwesi Ameyaw
Special Agent Hicks (1 eps)
Mike Vardy
Lab Employee (1 eps)
Andrew Airlie
Jason Anderson (1 eps)
Samuel Patrick Chu
Putnam (1 eps)
Ryan Vrba
Puck (1 eps)
Amber Borycki
Cybernetic Fairy (1 eps)
Chris Parnell
Dr. Noah Drummer (1 eps)
Kenneth W. Yanko
Lt. General (1 eps)
Michael Benyaer
Dr. Louis Glazer (1 eps)
Mike Coleman
Pizza Dude (1 eps)
Arthur Corber
Scientist in Explosion (1 eps)
Aaron Isaacs
Walter Perkins (1 eps)
J.R. Messado
Kevin Blake (1 eps)
Finn Michael
Scientist (1 eps)
Michelle Harrison
Lily Morgan (1 eps)
Raugi Yu
Wayne Kwan (1 eps)
Reese Alexander
Security Officer (1 eps)
J.B. McEown
Kid in Park (1 eps)
Vincent Gale
Dr. Todd (1 eps)
Don Thompson
Victor (1 eps)
Patrick Gilmore
Pete Puhlman (1 eps)
Stefanie von Pfetten
Wendy Whiticus (1 eps)
David Nykl
Dr. Steven Whiticus (1 eps)
Max Fomitchev
Neil Baxter (1 eps)
Aleksandra Rea
Spa Attendant (1 eps)
Syn Narula
Dr. Babajanian (1 eps)
Ed Hong-Louie
Man at Bar (1 eps)
Anna Galvin
Dr. Jane Harrington (1 eps)
Elise Gatien
Megan (1 eps)
David James Lewis
Dr. Aaron Finn (1 eps)
Brenda Crichlow
Principal Wallace (1 eps)
Matreya Fedor
Tina (1 eps)
Fulvio Cecere
Jake Wyatt (1 eps)
Colin Cunningham
Dr. Paul Suenos (1 eps)
Carmen Moore
Dr. Childress (1 eps)
James Ashcroft
Male Nurse (1 eps)
Michael Bean
Husband (1 eps)
Lossen Chambers
Nurse (1 eps)
Daniel Boileau
Man Arguing with Wife (1 eps)
Tanya Champoux
Woman Arguing with Husband (1 eps)
Nancy J. Lilley
Upset Wife (1 eps)
Alison Raine
Woman in Purple Sweater (1 eps)
Donna Yamamoto
Woman Arguing with Friend (1 eps)
Tygh Runyan
Pierre Fargo (1 eps)
Laura Jaye
Woman (1 eps)
Scott Hylands
Andre Sandrov (1 eps)
Terence Kelly
Charlie (1 eps)
Deirdre Blades
Belle St. John (1 eps)
David Paetkau
Callister Raynes (1 eps)
Stan Lee
Dr Lee alias « Generaleesimo » (1 eps)
Kevin O'Grady
Technician (1 eps)
Allison Hossack
Dr. Emily Glenn (1 eps)
Bill Mondy
Sam Lovejoy (1 eps)
Sarah Hayward
Madame (1 eps)
Rob Hayter
FBI Agent #2 (1 eps)
Paul Herbert
Epigeneticist (1 eps)
Dave Leach
Marco Polo #1 (1 eps)
Stephen Park
Marco Polo #2 (1 eps)
Storma T. McDonald
Media Store Clerk (1 eps)
Iris Paluly
Home Owner (1 eps)
David Stuart
Pharmacist (1 eps)
Barbara Eve Harris
Reverend Harper (1 eps)
Alison Araya
Parishioner (1 eps)
Dorla Bell
Zoe's Friend #3 (1 eps)
Anna Cummer
EMT Nurse (1 eps)
Nhi Do
Zoe's Friend #2 (1 eps)
Richard Ian Cox
Dr. Bob Stone (1 eps)
Maria Luisa Cianni
Miss Nelson (1 eps)
Eric Hui
Medical Doctor (1 eps)
Bonnie Smart
Female Tech (1 eps)
Steve Makaj
Rudolph (1 eps)
Daniel Pepper
D.O.D. Agent (1 eps)
Sean Millington
Global Security Officer (1 eps)
Layla Alizada
Dr. Sharat (1 eps)
Daryl Shuttleworth
Global Security Tactical Commander (1 eps)
Saul Rubinek
Dr. Carl Carlson (1 eps)
Yvonne Myers
Global Dynamics Human Resource Counselor (1 eps)
Randal Edwards
Lab Tech (1 eps)
Antony Holland
Dr. Irvin Thatcher (1 eps)
Christopher Ang
Interrogatee (1 eps)
Donna White
Eugenia (1 eps)
Colin Foo
Scientist Teaching Zoe #1 (1 eps)
John Burnside
Scientist Teaching Zoe #2 (1 eps)
Mark Burgess
Man Getting Ticket (1 eps)
Matt McInnis
Young Thatcher (1 eps)
Tyla Gagnon
Young Eugenia (1 eps)
Aaron Rota
Man In Yellow Shirt (1 eps)
Tom Tames
Dylan Hartwell (1 eps)
David Quinlan
Dr. Milton Houk (1 eps)
Gary Sekhon
Kellor (1 eps)
Laura Adkin
Cheerleader #1 (1 eps)
Katie Chapman
Cheerleader #2 (1 eps)
Sean Kohnke
Researcher #1 (1 eps)
Sean Devine
Bus Driver (1 eps)
Robert Clarke
Larry the IT Guy (1 eps)
Patricia Isaac
Med Tech (1 eps)
Rukiya Bernard
IT Technician (1 eps)
Rif Hutton
Astraeus Computer (1 eps)
Aleks Paunovic
Global Security Officer (1 eps)
Chris Becker
Darren (1 eps)
Ben Immanuel
Dr. Fung (1 eps)
Jonathan Holmes
Consortium #1 (1 eps)
Sarah Afful
Cop (1 eps)
Christina Jastrzembska
Old Woman (1 eps)
Christina Sicoli
GD Tech #2 NPC (1 eps)
Viv Leacock
Array Guard #1 (1 eps)
Jason Griffith
Array Guard #2 (1 eps)
Nico Cortez
Jo's Dad (1 eps)
Jeffrey Kaiser
GD Tech NPC (1 eps)
Demord Dann
GD Guard NPC (1 eps)
Jonathon Young
Dr. Ethan Edison (1 eps)
Eileen Barrett
Judy Stone (1 eps)
Kirsten Robek
Mina (1 eps)
Elysia Rotaru
Teri Wallace (1 eps)
Richard Kahan
Derek Bowers (1 eps)
Malcolm Stewart
Rick Wallace (1 eps)
Woody Jeffreys
Bob Nobb (1 eps)
Jax Smith
Grace (1 eps)
Neil Schell
Abe (1 eps)
Patricia Harras
Laura Wallace (1 eps)
Chad Riley
Guard (1 eps)
Holly Dignard
Dr. Tracy Fox (1 eps)
Shawn Macdonald
Dr. Mendel (1 eps)
Kayla Deorksen
Sales Lady (1 eps)
Nicholas Carella
Leo Weinbrenner (1 eps)
Zak Santiago
Dr. Sebastian Marx (1 eps)
Adrian Hough
Dr. Wilding (1 eps)
Tricia Collins
Eileen Michaels (1 eps)
Mark Hildreth
Chuck (1 eps)
Jody Racicot
Doctor Peterson (1 eps)
David Mackay
Doctor Gaz (1 eps)
Dean Marshall
Dr. Herrera (1 eps)
Kaaren de Zilva
Doctor Lee (1 eps)
Margot Berner
Kylie (1 eps)
Jonathan Nichols
Announcer (1 eps)
Jay Brazeau
Captain Yuri Gregor (1 eps)
David Richmond-Peck
Dr. Hendricks (1 eps)
Julius Chapple
Guard (1 eps)
Kim Poirier
Dr. Maria Leonardo (1 eps)
Kurt Max Runte
Agent Turner (1 eps)
Tobias Slezak
Dr. Jacob Stefano (1 eps)
Julia Arkos
Dr. Bella Pagani (1 eps)
Brendan Beiser
Dr. Drechmeyer (1 eps)
Chelah Horsdal
Mary-Beth Curtis (1 eps)
Mark Gash
H.J. Johnson (1 eps)
Rachel Gassi
The Dress Lady (1 eps)
Nicholas Longstaff
The Mail Carrier (1 eps)
Sean Owen Roberts
Toby Bismarck (1 eps)
John DeSantis
John DeSantis (1 eps)
Wanda Ayala
Researcher (1 eps)
Eric Hempsall
Dr. Wyman (1 eps)
Jennifer Crystal Foley
Tabitha (1 eps)
Darryl Scheelar
Ranger Tom (1 eps)
D. Harlan Cutshall
GD Demo Team Leader (1 eps)
Ben Geldreich
Dr. Lieber (1 eps)
Glynis Davies
Toaster Owner (1 eps)
Heather Doerksen
Woman #2 (1 eps)
Billy Campbell
Dr. Bruce Manlius (1 eps)
Laura Mennell
Dr. Rivers (1 eps)
Stefanie Samuels
Dr. Draper (1 eps)
Jennifer Spence
Dr. Monroe (1 eps)
Meredith McGeachie
Dr. Bell (1 eps)
Richard Side
Dr. Kinnison (1 eps)
Stacey Bendfelt
GD Gym Manager (1 eps)
Jillian Fargey
Dr. Ashe (1 eps)
Andrew Cownden
Dr. Bubay (1 eps)
Jill Morrison
Supply Clerk (1 eps)
Don Hastings
Baseball Game Announcer (1 eps)
Nickolas Baric
MP #1 (1 eps)
Eddie Frierson
Radio Announcer (1 eps)
Stacee Copeland
GD Nurse (1 eps)
Fiona Vroom
GD Employee (1 eps)
Benjamin Wilkinson
Dr. Anson (1 eps)
Matthew Thiessen
Scientist #1 (1 eps)
Kameron Louangxay
Scientist #2 (1 eps)
Chad Bellamy
GD Guard - Frank (1 eps)
Keenan Tracey
Jake (1 eps)
Joel Semande
Male Student (1 eps)
Christie Burke
College Girl (1 eps)
Tiara Sorensen
Sweater Girl (1 eps)
Olivia Cheng
Dr. Lisa Wheeler (1 eps)
Wesley Salter
Technician (1 eps)
Norman Misura
Irate Customer (1 eps)
Keegan Connor Tracy
Dr. Viccelli (1 eps)
John Reardon
Dr. Derek Thergood (1 eps)
Stephanie Belding
Dr. Tanya Zimmer (1 eps)
Dalias Blake
Construction Worker #1 (1 eps)
Jerry Rector
Construction Worker #2 (1 eps)
Bella King
Jessica Lansky (1 eps)
Harrison Xu
Tesla Kid #1 (1 eps)
Phillip Mitchell
Soldier #1 (1 eps)
Adam Bergquist
Mr. Hall (1 eps)
Aaron Douglas
Dr. Ray Darlton (1 eps)
Luke Camilleri
Dr. Welke (1 eps)
Dave Foley
Dr. Plotkin (1 eps)
Kevin Kruchkywich
Dr. Fielding (as Kevin James) (1 eps)
Quinn Lord
Young Zane (1 eps)
Craig Anderson
Dr. Nick Fowler (1 eps)
Paul Christie
Dr. Ryan Brock (1 eps)