David Wellington
Jeff Woolnough
Erica Durance
饰:Dr Alex Reid
Benjamin Ayres
饰:Dr Zachary Miller
K.C. Collins
饰:Dr Tom Reycraft
Tyler Hynes
饰:Luke Reid
Michael Shanks
饰:Dr Charlie Harris
Daniel Gillies
饰:Dr Joel Goran
Kristopher Turner
饰:Dr Gavin Murphy
Danso Gordon
饰:Rian Larouche
Ronnie Rowe
饰:Spirit of Corporal McCreary
饰:Officer Vieira
Julia Taylor Ross
饰:(as Julia Taylor Ross)
Glenda Braganza
饰:Dr Melanda Tolliver
饰:(as Huse Madhavji)
David Storch
饰:Ian Taft
David Guthrie
饰:Man
Michelle Nolden
饰:Dr Dawn Bell
Joseph Pierre
饰:Nurse Jackson Wade
Steve Cumyn
饰:Dr George Baumann
Fiona Highet
Benno Tutter