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