Besetzung

• Jacob Tremblay — August 'Auggie' Pullman
• Julia Roberts — Isabel Pullman
• Owen Wilson — Nate Pullman
• Izabela Vidovic — Olivia 'Via' Pullman
• Mark Dozlaw — Teenage Doctor
• Mandy Patinkin — Lawrence Tushman
• Noah Jupe — Jack Will
• Bryce Gheisar — Julian Albans
• Elle McKinnon — Charlotte Cody
• Daveed Diggs — Thomas Browne
• Ty Consiglio — Amos
• Kyle Harrison Breitkopf — Miles Noury
• Millie Davis — Summer Dawson
• Ali Liebert — Ms. Petosa
• Cameron Roberts — James
• Danielle Rose Russell — Miranda Navas
• Nadji Jeter — Justin Hollander
• Ben Ratner — Mr. Davenport
• Michael Alan Healy — Chewbacca
• Nicole Oliver — Mrs. Will
• Sasha Neuhaus — Maya
• Rachel Hayward — Mrs. Navas
• Victoria Cruz — Science Fair Judge
• Crystal Lowe — Melissa Albans
• Steve Bacic — Julian Albans, Sr.
• Emma Tremblay — Michelle
• Lidya Jewett — Lina Annan
• Grayson Maxwell Gurnsey — Wally
• Maccie Margaret Chbosky — Via (4 years old)
• Jason Tremblay — Camp Counsellor
• Andre Robinson — School Kid
• Jason McKinnon — School Photographer
• Sean Ryan Fox — Additional Voice
• Darcy Rose Byrnes — Musical Theatre Student (voice)
• Sônia Braga — Grans