Matt Dillon
Ethan Burke (10 eps)
Shannyn Sossamon
Theresa Burke (10 eps)
Carla Gugino
Kate Hewson (10 eps)
Charlie Tahan
Ben Burke (10 eps)
Toby Jones
Dr. Jenkins (10 eps)
Melissa Leo
Nurse Pam (10 eps)
Reed Diamond
Harold Balinger (8 eps)
Hope Davis
Megan Fisher (7 eps)
Chad Krowchuk
Tim Bell (6 eps)
Sarah Jeffery
Amy (6 eps)
Barclay Hope
Brad Fisher (4 eps)
Michael McShane
Big Bill (4 eps)
Terrence Howard
Sheriff Pope (4 eps)
Christian Tessier
Bartender (4 eps)
Tim Griffin
Adam Hassler (4 eps)
Lusia Strus
Marcy (voice) (3 eps)
Jared Ager-Foster
Boy on Bike (3 eps)
Giacomo Baessato
Eric (uncredited) (3 eps)
Teryl Rothery
Henrietta (3 eps)
Ian Tracey
Franklin Dobbs (3 eps)
Donny Lucas
Victor (3 eps)
Roger Haskett
Doctor Carol (3 eps)
Janet Glassford
Gina (3 eps)
Juliette Lewis
Beverly Brown (3 eps)
Alison Araya
Nurse (2 eps)
Justin Kirk
Peter McCall (2 eps)
Gerardo Barcala
Townsfolk (uncredited) (2 eps)
Andrew Jenkins
Ted Laufer (2 eps)
Andrew Suttar
Townsperson (2 eps)
Scott Michael Campbell
Wayne Johnson (2 eps)
Toby Levins
Alan (2 eps)
Grayson Szakacs
Toby Wilson (2 eps)
Jane Craven
Christina (2 eps)
Mathew Yanagiya
Graduate Student (uncredited) (2 eps)
RJ Fetherstonhaugh
Sean (2 eps)
Tom MacNeill
Clean Up Crewman (uncredited) (2 eps)
Nicholas Carella
Reggie Hudson (1 eps)
Malcolm Goodwin
Dr. Bauer (1 eps)
Sandy Robson
Agent Rick Stallings (1 eps)
Gary Sekhon
Head Tech (1 eps)
Jessica Harmon
Woman #1 (1 eps)
Lisa MacFadden
Mother (1 eps)
Danny Mac
Fireman (uncredited) (1 eps)
Lindsay Hollister
Patricia Evans (1 eps)
Tara Pratt
Bartender's Wife (1 eps)
Bruce Blain
Man (1 eps)
Cassandra Cavalli
Townsfolk / Singer (uncredited) (1 eps)
BJ Harrison
Receptionist (1 eps)
Rowan Longworth
Boy (1 eps)
Jesse Haddock
Young Attendant (1 eps)
Sarah Desjardins
Carrie (1 eps)
Samuel Patrick Chu
Reed (1 eps)
Jennifer Kitchen
Marcy (1 eps)
Tracy Froese
Sara Barlow (1 eps)
Kennedi Clements
Jenny (1 eps)
Manny Jacinto
Lab Assistant (1 eps)
Murry Peeters
Tracy Salzman (1 eps)
Robin Nielsen
Husband (1 eps)
Tanya Hubbard
Wife (1 eps)
Craig March
Workman #1 (1 eps)
Dakota Guppy
Little Girl / Daughter (1 eps)
Kate Crutchlow
Elizabeth (uncredited) (1 eps)
Glen Gordon
Finn (uncredited) (1 eps)
Ron Wear
Abby (uncredited) (1 eps)
Lee Jeffery
Amy's Dad (1 eps)
Allyson Grant
Amy's Mom (1 eps)
Jeanie Cloutier
Concerned Citizen (1 eps)
Fraser Corbett
Abbey (uncredited) (1 eps)
James Michalopolous
Abbey (uncredited) (1 eps)
Primo Allon
Head Guard (1 eps)
Jeremy Thorsen
Paul (1 eps)
Jeffrey Ballard
1st Generation Student (1 eps)
Christine McMahon
Nurse (1 eps)
Chris Shields
Charles Keen (1 eps)