Julia Roberts Isabel
Mandy Patinkin Mr. Tushman
Owen Wilson Nate
Jacob Tremblay Auggie
Noah Jupe Jack Will
Danielle Rose Russell Miranda
Rukiya Bernard Nurse
Jason Tremblay Camp Counsellor
Millie Davis Summer
Izabela Vidovic Via
Kyle Breitkopf Miles
Ben Immanuel Mr. Davenport
Yan-Kay Crystal Lowe Julian's Mom
William Kruzykowski First Assistant Editor
Sônia Braga Grans
Daveed Diggs Mr. Browne
J. Douglas Stewart Darth Sidious
Lidya Jewett Lina Annan
Jack Thorne Screenplay
John Dekker Gaffer
Emma Tremblay Michelle
Steven Conrad Screenplay
Elle McKinnon Charlotte
Steve Bacic Julian's Dad
Luisa Dalmagro Costume Coordinator
Jeff Skoll Executive Producer
Emily Delahunty Ximena Chin
Stephen Chbosky Director, Screenplay
Will Ropp ADR & Dubbing
Shannon Gottlieb Set Decoration
Perry Robertson Supervising Sound Editor
Nicole Oliver Jack Will's Mom
Dale Robinette Still Photographer
Jason McKinnon School Photographer
Deborah Aquila Casting
Rachel Hayward Miranda's Mom
Scott Sanders Supervising Sound Editor
Andre Robinson School Kid (uncredited)
Tricia Wood Casting
Michael Burgess "B" Camera Operator, Second Unit Director of Photography
Marcelo Zarvos Original Music Composer
Julian Chapdelaine Dolly Grip
Kalina Ivanov Production Design
Don Burgess Director of Photography
Ali Liebert Ms. Petosa
Maccie Margaret Chbosky Via (Age 4)
Daryl Hartwell "B" Camera Operator
Kevin Zimmerman Sound Editor
David Hoberman Producer
Cameron Roberts Cute Guy
Doug Abrahams Dialect Coach
Michael Beugg Executive Producer
Alison Fraser Assistant Costume Designer
Peter Wilke Steadicam Operator
Dean Eilertson Property Master
Bryce Gheisar Julian
Joe Fugallo Other
Todd Lieberman Producer
Nadji Jeter Justin
Robert Kessel Executive Producer
Susan Lambie Script Supervisor
Megan Harkness Key Makeup Artist
Kris Woznesensky Casting
Darin Wong Dolly Grip
Long Qiuyun Executive Producer
Monique Prudhomme Costume Design
Kendelle Elliott Art Direction
Kari Staten Parent (uncredited)
Naomi Bakstad Makeup Department Head
Iain Belcher Casting Assistant
Leif Havdale Stunt Coordinator
Ty Consiglio Amos