Yvonne Campeau
Jaru (2 eps)
Saul Rubinek
Professor Hugaro (1 eps)
Nicole de Boer
Cadet 2nd Class Bree Tristan (1 eps)
Frank Whaley
Henry Marshall (1 eps)
Michelle Beaudoin
Jessie Wells (1 eps)
Kelly Rowan
Isabelle Pierce (1 eps)
Robert Clothier
Dr. Linstrop (1 eps)
Gregory Smith
Young Paul (1 eps)
Lloyd Bridges
Col. Kress (1 eps)
Timothy Busfield
Dr. Jon Holland (1 eps)
Richard Thomas
Dr. Stephen Ledbetter (1 eps)
Ryan Reynolds
Derek Tillman (1 eps)
Matt Craven
Alan Wells (1 eps)
Gordon Clapp
Dr. Randall Strong (1 eps)
Mykelti Williamson
Dr. Michael Alders (1 eps)
Chris Sarandon
Dr. Pallas (1 eps)
Perry King
Senator Richard Adams (1 eps)
Frances Sternhagen
Jean Anderson (1 eps)
Marlee Matlin
Jennifer Winter (1 eps)
Len Cariou
Father Anton Jonascu (1 eps)
David Warner
Bill Trenton (1 eps)
Robert Patrick
Major John Skokes (1 eps)
Mimi Kuzyk
Dr. Leslie McKenna (1 eps)
Michael Dorn
Pete Claridge (1 eps)
Megan Follows
Karen Ross (1 eps)
Daniel J. Travanti
Chairman Thornwell (1 eps)
Helen Shaver
Cathy Kress (1 eps)
Barbara Williams
Caitlin Doyle (1 eps)
Peter Outerbridge
Dr. Andy Groenig (1 eps)
Bruce Davison
Dr. 'Mac' McEnerney (1 eps)
Elizabeth Peña
Dr. Jennifer Martinez (1 eps)
Allison Hossack
Erin Whitley (1 eps)
Rae Dawn Chong
Karen Heatherton (1 eps)
Leonard Nimoy
Thurman Cutler (1 eps)
Alberta Watson
Lynda Tillman (1 eps)
Larry Drake
Robert Vitale (1 eps)
Alyssa Milano
Hannah Valesic (1 eps)
Colleen Rennison
Jillian Rosman (1 eps)
Sonja Smits
Dr. Anne Crain (1 eps)
Cynthia Preston
Mina Link (1 eps)
Dwight Schultz
Leviticus Mitchell (1 eps)
Beau Bridges
Dr. Simon Kress (1 eps)
Beau Starr
Jack, the Detective (1 eps)
Callum Keith Rennie
Carlito (1 eps)
Jay O. Sanders
Ed Barkley (1 eps)
D.W. Moffett
James Heatherton (1 eps)
Sam Robards
Ben Kohler (1 eps)
Bruce French
Wayne Fowler (1 eps)
John Heard
Paul Stein (1 eps)
Lochlyn Munro
Waters (1 eps)
Kim Coates
Dave Stockley (1 eps)
Sandra Nelson
Leslie Travers (1 eps)
Fulvio Cecere
Det. Richard Jacobs (1 eps)
Josh Brolin
Jack Pierce (1 eps)
Vanessa Morley
Miranda (1 eps)
William Hickey
Harlan Hawkes (1 eps)
Jason London
Jay Patton (1 eps)
Mitchell Kosterman
FBI Agent (1 eps)
Louis Ferreira
Father John Royce (1 eps)
Annette O'Toole
Commander Lydia Manning (1 eps)
Barbara Tyson
Carrie Emerson (1 eps)
Julian Christopher
David Aftergood (1 eps)
Rebecca Toolan
Mrs. Whelan (1 eps)
Rebecca De Mornay
Woman (1 eps)
Page Fletcher
Joe Travers (1 eps)
Jesse Moss
Jason (1 eps)
Christine Lippa
Nurse Hendricks (1 eps)
John Savage
Lucas (1 eps)
Michael Dolan
Rob Anderson (1 eps)
Dean Barrett
Stephen (1 eps)
Thora Birch
Aggie Travers (1 eps)
Kerry Sandomirsky
Mary (1 eps)
Diana Stevan
Ruth (1 eps)
David Cubitt
Kevin Stein (1 eps)
Tracy Waterhouse
Debra (1 eps)
P. Lynn Johnson
Mrs. Hagen (1 eps)
William Sadler
Frank Hellner (1 eps)
Sofia Shinas
Valerie (1 eps)
Tom Butler
Charlie Rogers (1 eps)
Nancy Allen
Rachel Rose (1 eps)
Paula Shaw
Executive (1 eps)
Bruce Harwood
Technician (1 eps)
Charles Martin Smith
Spencer Deighton (1 eps)
Kate Vernon
Tricia Lange (1 eps)
George Touliatos
Darrow (1 eps)
Tom Cavanagh
Carl Toman (1 eps)
Martin Kemp
Michael Deighton (1 eps)
Colleen Winton
Patricia Fowler (1 eps)
Patricia Harras
Debbie (1 eps)
Nathaniel DeVeaux
Security Captain (1 eps)
Deryl Hayes
Policeman (1 eps)
Mark Saunders
Lab Assistant (1 eps)
J. B. Bivens
Mover (1 eps)
David S. Cameron
Technician #1 (1 eps)
Richard Grove
Kadimas (1 eps)
Garry Davey
Randall Kelly (1 eps)
Kent Gallie
Jeffrey Littman (1 eps)
Madison Graie
Nancy (1 eps)
Debbie Podowski
Tali MacGregor (1 eps)
Barry W. Levy
Vila (1 eps)
Victoria Maxwell
First Protester (1 eps)
Dax Belanger
Second Protester (1 eps)