Sophie Nélisse character Gilly Hopkins
Kathy Bates character Maime Trotter
Glenn Close character Nonnie Hopkins
Bill Cobbs character Mr Randolph
Octavia Spencer character Miss Harris
Julia Stiles character Courtney Rutherford Hopkins
Clare Foley character Agnes
Billy Magnussen character Ellis
Zachary Hernandez character W.E.
Sammy Pignalosa character Rajeem
Toby Turner character Ticket Agent
Richard Topol character Principal Evans
Salvatore L. Rossi character Stevie
Cameron Clifford character Ed
Julee Cerda character Mrs. Hong
Johanna Day character Principal Maynard
Katherine Paterson character Clerk
Frank Oz character Cookie Monster (voice)
Blanca Camacho character Additional Voices (voice)