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