Dianne Wiest Wendy Kevin McNally Elmar Jim Sturgess Marek Marli Siu Dr. Stern Rosy McEwen Lars Andrew Buchan Karl Kobna Holdbrook-Smith Angela Anton Blake Horowitz Gerhart Patrick Lyster Chantal Tina Gray Wendy's Mother Raphael Sowole School Principal Andre Lillis Drunkard Tina Chiang Watchman Nikkita Chadha Interrogation Police Officer Sundar C Dr. Stern's Assistant Cara Gee Ash Peter Mooney Joe Aaron Abrams Hunter David Hewlett Oliver Amanda Tapping MEL Adam Hurtig Geddes Sydney Sabiston Maxine BJ Verot Reid Kristian Jordan Walker