Sophie Nélisse
Gilly Hopkins
Kathy Bates
Maime Trotter
Glenn Close
Nonnie Hopkins
Bill Cobbs
Mr Randolph
Octavia Spencer
Miss Harris
Julia Stiles
Courtney Rutherford Hopkins
Clare Foley
Agnes
Billy Magnussen
Ellis
Zachary Hernandez
W.E.
Sammy Pignalosa
Rajeem
Toby Turner
Ticket Agent
Richard Topol
Principal Evans
Salvatore Rossi
Stevie
Julee Cerda
Mrs. Hong
Johanna Day
Principal Maynard
Katherine Paterson
Clerk
Frank Oz
Cookie Monster (voice)
Blanca Camacho
Additional Voices (voice)
Gavin Westerlind
Ramirez
Sienna Stuebe
Neighbor
Athena Stuebe
Neighbor and Student
Loyzo
Neighbor
Liz Imperio
Neighbor
Connor Keegan Dosch
School student
Cynthia Basinet
Attendee
Cara Cooper
Woman with Book