Brie Larson Ma, Songs
William H. Macy Robert
Jacob Tremblay Jack
Joan Allen Nancy
Wendy Crewson Talk Show Hostess
Megan Park Laura (uncredited)
Amanda Brugel Officer Parker
Cas Anvar Dr. Mittal
Kate Drummond Neighbour
Sean Bridgers Old Nick
Joe Pingue Officer Grabowski
Tom McCamus Leo
Matt Gordon Doug
Jack Fulton Jack's Friend
Robin D. Cook Casting
Zarrin Darnell-Martin Attending Doctor
Jean Frenette Stunt Coordinator
Rodrigo Fernandez-Stoll Reporter #2
Tessa Ross Executive Producer
Lenny Abrahamson Director
Christopher Ross Additional Director of Photography
Justin Gajewski Second Unit First Assistant Director
Keith Potter Executive Producer
Stacey Butterworth Wigmaker
Jee-Yun Lee News Anchor
Ethan Tobman Production Design
Jane Rogers Extras Casting
Chantelle Chung Clerk (uncredited)
Caoimhe Doyle Foley Artist
Jean McGrath Foley Mixer
Justin Mader FBI Agent
Katelyn Wells Teenage Girl (uncredited)
Danny Cohen Director of Photography
Hartley Gorenstein Line Producer, Production Manager
Ed Guiney Producer
Fiona Weir Casting
Stephen Rennicks Original Music Composer
Emma Donoghue Executive Producer, Novel, Screenplay
Rose Garnett Executive Producer
Rory O'Shea Reporter #3
Steve Fanagan Sound Designer, Sound Re-Recording Mixer
Devin Doucette ADR Recordist
Andrew Lowe Executive Producer
Ken Galvin Sound Re-Recording Mixer
Adam Davidson ADR Recordist
Jasper Vrakking Digital Imaging Technician
Lea Carlson Costume Design
Randal Edwards Lawyer
Niall Brady Supervising Sound Editor
Nathan Nugent Second Unit Director, Editor
Vladislav Fedorov Set Designer
Ed Bruce Visual Effects Supervisor
Celeste Bruno Heather Noelle (uncredited)
George Kraychyk Still Photographer
Dean Stinchcombe First Assistant "A" Camera
Reid A. Dunlop First Assistant Director
David Kosse Executive Producer
Dino Laurenza "A" Camera Operator, Steadicam Operator
Graeme Potts TV Cameraman (uncredited)
Mary Kirkland Set Decoration
Chantelle Tabrizi Supervising Producer
Sid Armour Makeup Artist
Tricia Perrott Post Production Supervisor
Stephan Maia Second Assistant "B" Camera
Jason McQuarrie Assistant Art Director
Ola Sturik Reporter #1
Jean-François Lachapelle Stunt Coordinator
Carolyn Arbuckle Script Supervisor
George Kerr Gaffer
Sandy McMaster Veteran
Jeff Arkuss Executive Producer
Jesse Shapira Executive Producer