Wonder

Jacob Tremblay

Auggie Pullman

Owen Wilson

Nate Pullman

Julia Roberts

Isabel Pullman

Izabela Vidovic

Via Pullman

Danielle Rose Russell

Miranda Navas

Mandy Patinkin

Mr. Tushman

Daveed Diggs

Mr. Browne

Noah Jupe

Jack Will

Bryce Gheisar

Julian Albans

Millie Davis

Summer Dawson

Elle McKinnon

Charlotte Cody

Ali Liebert

Ms. Petosa

Nadji Jeter

Justin Hollander

Ty Consiglio

Amos Conti

Kyle Breitkopf

Miles Noury

James A Hughes

Henry Joplin

Nicole Oliver

Mrs. Will

Rachel Hayward

Mrs. Navas

Crystal Lowe

Melissa Albans

Steve Bacic

Julian Albans, Sr.

Ben Ratner

Mr. Davenport

Sônia Braga

Grandma

Izzy Lieberman

Reid Kingsley

Hannah Hoberman

Rebecca

Erika McKitrick

Ella

Lucia Thain

Savanna Wittenberg

Emily Delahunty

Ximena Chin

Sasha Neuhaus

Maya Markowitz

William Dickinson

Eddie Johnson

Armen Bagdasarov

Danny

Emma Tremblay

Michelle

Lidya Jewett

Lina Annan

Kaelyn Breitkopf

Angela

Emily Giannozio

Rebecca Gibbs

Haley Goldin

Mrs. Gibbs

Cameron Roberts

James

Grayson Maxwell Gurnsey

Wally

Maccie Margaret Chbosky

Young Olivia

Gidget

Daisy

Victoria Cruz

Science Fair Judge

Laura Mozgovaya

Julian's sister

Darcy Rose Byrnes

Musical Theatre Student (voix)

Jason McKinnon

School Photographer

Brayden Snow

Classmate

Brooke D. Singleton

(voix) (voix)

Andre Robinson

School Kid

Alyssa Andronyk

School Kid

Jason Tremblay

Camp Counsellor

Wilson Chieng

Simon Stimson

Dallas Snow

Classmate

Justin Snow

Classmate

Kayzhia Snow

Classmate

Amber Snow

Classmate Parent

Elayna Sing

Classmate

Ann Evans

Parent

Mark Dozlaw

Doogie Howser (non-crédité)

Abigail Friend

Daughter at Coney Island Beach (non-crédité)

Razvan Orban

Boy in red (non-crédité)

Kari Staten

Parent (non-crédité)

Sônia Braga

Grans (as Sonia Braga)

Sean Ryan Fox

Additional Voice