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