Ron Rifkin
Dr. Martin Nodel (1 eps)
Jon Tenney
Aidan Hunter (1 eps)
Eric McCormack
John Virgil (1 eps)
Casper Van Dien
Jake Miller (1 eps)
Howie Mandel
Karl Durand (1 eps)
Don Franklin
Tim McAllister (1 eps)
Harley Jane Kozak
Prisoner No. 98843 (1 eps)
David McCallum
Joshua Hayward (1 eps)
Kirsten Dunst
Joyce Taylor (1 eps)
George Newbern
Ryan Unger (1 eps)
Steven Weber
8x10 Man (1 eps)
Peter Onorati
Frank Martin (1 eps)
Stephen Lang
Dr. James Houghton (1 eps)
Yee Jee Tso
Hong (1 eps)
Mario Van Peebles
Captain William Clark (1 eps)
Daniel Benzali
Graham Highfield (1 eps)
Alan Scarfe
Dr. Royce (1 eps)
Teryl Rothery
Dr. Lucy Cole (1 eps)
Laura Harris
Sarah Hayward (1 eps)
David Hemblen
Commandant (1 eps)
Terence Kelly
Oscar Reynolds (1 eps)
Howard Hesseman
Dr. Emory Taylor (1 eps)
John Diehl
Joe (1 eps)
Alan Thicke
Donald Rivers (1 eps)
Natasha Henstridge
Emma (1 eps)
Kenneth Welsh
Dr. Vasquez (1 eps)
Andrew Airlie
Dr. Kevington (1 eps)
Alexander Pollock
Boy (1 eps)
Sandrine Holt
Jade / Laura (1 eps)
Roger Cross
Kevin Flynn (1 eps)
Gordon Pinsent
Dr. Steven Molstad (1 eps)
Tara Spencer-Nairn
Heather (1 eps)
Steve Bacic
Griff (1 eps)
Bill Cobbs
Second Elder - Prisoner No. 91777 (1 eps)
Shane Meier
Mark (1 eps)
Gary Basaraba
Ben Miller (1 eps)
Guylaine St-Onge
Dr. Helene Dufour (1 eps)
Marilyn Norry
Flo (1 eps)
Cindy Girling
Saleswoman (1 eps)
Michael Hogan
Dr. Lawrence Sinclair (1 eps)
French Tickner
Father Puglia (1 eps)
Charlene Fernetz
Corinne Virgil (1 eps)
Michael Ontkean
Dr. Charles McCamber (1 eps)
Lela Rochon
Beth Carter (1 eps)
Kim Cattrall
Rebecca Highfield (1 eps)
Kyle Labine
Joe (1 eps)
Andrew Younghusband
D.J. (1 eps)
Jessica Harmon
Little Girl (1 eps)
Ingrid Kavelaars
Nicole (1 eps)
Blu Mankuma
Stanley (1 eps)
Catherine O'Hara
Becka Paulson (1 eps)
Ken Pogue
Dean Hardwick (1 eps)
Jennifer Rubin
Rose Ciotti (1 eps)
Esai Morales
Frank Kelton (1 eps)
James Le Gros
Ben Conklin (1 eps)
Jennifer Beals
Robin Dysart (1 eps)
Joshua Jackson
Devon Taylor (1 eps)
Ron Halder
Lab Assistant (1 eps)
Rachael Crawford
Sherry McAllister (1 eps)
Burt Young
Captain Parker (1 eps)
Jason Priestley
Anthony Szigetti (1 eps)
Michele Greene
Joan Garrison (1 eps)
John Novak
Tom Grant (1 eps)
Crystal Cass
Claire (1 eps)
Rick Ravanello
Driver (1 eps)
Fred Savage
Danny Martin (1 eps)
Lorena Gale
Louise (1 eps)
Carla Boudreau
Actress (1 eps)
Merrilyn Gann
Gwen Wellington (1 eps)
Jerry Wasserman
William Talbot (1 eps)
Zachary Ansley
Adrielo (1 eps)
Jed Rees
J.D. Kelton (1 eps)
Gina Chiarelli
Doctor #2 (1 eps)
Frank C. Turner
Elder (1 eps)
Christine Willes
Nurse Yvette (1 eps)
Scott Vickaryous
Young Sinclair (1 eps)
Bill Dow
Doc Fink (1 eps)
Tobias Mehler
Nicky Reeves (1 eps)
Freda Perry
Nurse (1 eps)
Dey Young
Carol Martin (1 eps)
Susan Hogan
Dr. Marissa Golding (1 eps)
Mark Gibbon
Overseer #2 (1 eps)
Matthew Walker
Trevor Hunter (1 eps)
Stevie Vallance
Sandra (1 eps)
Russell Porter
Actor (1 eps)
Kathryn Anderson
Woman (1 eps)
Sheila Larken
Francis Hunter (1 eps)
Karen Elizabeth Austin
Old Woman (1 eps)
John Tench
Scarred Man (1 eps)
David S. Cameron
Overseer #3 (1 eps)
Jonathon Young
Young Man (1 eps)
Izabella Zalewski
Young Woman (1 eps)