Ian Weir Creator, Executive Producer Rossif Sutherland Karl Alberg Actor Kristin Kreuk Cassandra Lee Actor Marcia Gay Harden Mayor Christie Holman Actor Bethany Brown Corporal Laila Jackson Guest Star Aaron Douglas Sergeant Sid Sokolowski Guest Star Marci T. House Dr. Angela Clyborn Guest Star Savonna Spracklin Isabella Harbud Guest Star Fiona Vroom Phyllis Diaz Guest Star Alisha Newton Devon Travis Guest Star Dakota Guppy Holly Alberg Guest Star Jacob Shoemay Brett Holman Guest Star Corina Akeson Willa Constantine Guest Star Greg Kean Sean Van Der Mere Guest Star Jaden Rain Elliot Gifford Guest Star Adrian Glynn McMorran Jack Coutts Guest Star Roman Kinsella Greg Hoyseth Guest Star Sasha Hayden Doctor Guest Star Emily Giannozio Nurse Guest Star Tyler Posey Ryan Coogan Guest Star Libby Osler Nicole Yatkowsky Guest Star Rochelle Greenwood Miranda Parsons Guest Star Jodelle Ferland Vanessa Guest Star Caitlin Stryker Nancy Hopkins Guest Star Madeleine Kelders Shelley Parkinson Guest Star Kareem Malcolm Officer Gainer Guest Star Reilly Dolman Chad Wilkinson Guest Star Milan Cheylov Executive Producer Nick Orchard Executive Producer Morris Ruskin Executive Producer Sharon Wisnia Executive Producer Jon Cotton Executive Producer