Erin Karpluk
Erica Strange (49 eps)
Michael Riley
Dr. Tom Wexler (49 eps)
Reagan Pasternak
Julianne Giacomelli (49 eps)
Morgan Kelly
Brent Kennedy (49 eps)
Vinessa Antoine
Judith Winter (49 eps)
Kathleen Laskey
Barb Strange (49 eps)
John Boylan
Gary Strange (49 eps)
Joanna Douglas
Samantha Strange (49 eps)
Paula Brancati
Jenny Zalen (49 eps)
Tyron Leitso
Ethan Wakefield (49 eps)
Sarah Gadon
Katie Atkins (49 eps)
Laurence Leboeuf
Claire LeDuc (49 eps)
Sebastian Pigott
Kai Booker (36 eps)
Adam MacDonald
Josh MacIntosh (27 eps)
Devon Bostick
Leo Strange (17 eps)
Joanne Vannicola
Dr. Naadiah (13 eps)
Melanie Scrofano
Rebecca (10 eps)
Dillon Casey
Ryan (6 eps)
Graham Greene
Dr. Arthur (5 eps)
Jefferson Brown
Scott Galvin (4 eps)
Janelle Hutchison
Aunt Roberta (4 eps)
Mayko Nguyen
Antigone (2 eps)
Kristen Gutoskie
Georgie Giacomelli (2 eps)
Shauna MacDonald
Majorie (2 eps)
Rob Stewart
Norm (1 eps)
Peter Mooney
Mr. Callaghan (1 eps)
Noam Jenkins
Adult Leo (1 eps)
Salvatore Antonio
Mischa (1 eps)
Rossif Sutherland
Emmett (1 eps)
Patrice Goodman
Clerk (1 eps)
Lisa Berry
Melanda (1 eps)
Sarain Boylan
Lulu (1 eps)
Patrick Foran
Technician (1 eps)