Naomi Watts Susan Carpenter
Dean Norris Glenn Sickleman
Jacob Tremblay Peter Carpenter
Lee Pace Dr. David Daniels
Jaeden Martell Henry Carpenter
Jodi Michelle Pynn Stunts
Sarah Silverman Sheila
Joel Marsh Garland Big Ed
Michael Giacchino Original Music Composer
Maxwell Simkins Tommy
Maddie Ziegler Christina
Bobby Moynihan John
Donna Mitchell Bookstore Clerk
Blaise Corrigan Stunt Coordinator
Maya Hardinge Makeup Department Head
Tonya Pinkins Principal Wilder
Gregg Hurwitz Writer, Co-Producer
Sue Baden-Powell Executive Producer, Unit Production Manager
Mary Joy Dot
Geraldine Hughes Mrs. Evans
Colin Trevorrow Director
Chris Barnes Stunts
Wass Stevens Gary
Suzanne Smith Crowley Casting
Jessica Kelly Casting
Melissa Toth Costume Design
John Schwartzman Director of Photography
Carla Hacken Producer
Arthur French Gus
Jackson Nicoll Morris
Bruce Toll Executive Producer
Sidney Kimmel Producer
Marjan Neshat Nurse Kathy
John Penotti Executive Producer
Justin Bischoff Second Assistant Director
Mike Massimino Trucker
Lily Peterson Stage Manager (uncredited)
Adam Richman Producer
Kevin Stitt Editor
Kalina Ivanov Production Design
Nick Meyer Executive Producer
Claire Mahony Key Hair Stylist
Logan Smith Boy (uncredited)
Anthony Keating Set Production Assistant
Jenette Kahn Producer
Deborah Rayne EMT
Gavin Barnes Kid with "R"
Zandi Holup Teenage Girl Customer
Donnetta Lavinia Grays Nurse Leah
Joanne Ling Set Decoration
Stefanie Flores Girlfriend (uncredited)
Kathleen Brown Key Makeup Artist
Taylor Dior Talent Show Singer
Philip Smreck George Sickleman
Derek Wang Art Direction
Jeff Gernert Associate Producer
Mark Mikutowicz Co-Producer
Peter Hourihan Cop
Adam Callan Co-Producer