Freddie Highmore
George Zinavoy
Emma Roberts
Sally Howe
Michael Angarano
Dustin
Elizabeth Reaser
Charlotte Howe
Alicia Silverstone
Ms. Herman
Sasha Spielberg
Zoe
Marcus Carl Franklin
Will
Ann Dowd
Mrs. Grimes
Blair Underwood
Principal
Rita Wilson
Vivian Sargent
Sam Robards
Jack Sargent
Sophie Lane Curtis
Chastity
Maya Ri Sanchez
Cynthia
Ann Harada
Mrs. Dougherty
Jarlath Conroy
Harris McElroy
Andrew Levitas
Javier
Dan Leonard
Nick
Lindsay-Elizabeth Hand
Sally's Friend (uncredited)