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