Dear Dumb Diary

Emily Alyn Lind

Jamie Kelly

Mary-Charles Jones

Isabella

Sterling Griffith

Angeline

Natalie Alyn Lind

Claire Vanderhied (uncredited)

David Mazouz

Hudson Rivers

James Waterston

Assistant Principal Devon

Lea DeLaria

Ms. Bruntford

Maddie Corman

Jamie's Mom

Jeffrey Hanson

Jamie's Dad

Anson Bagley

Young Van Gogh

Marlys Miller-Fladeland

Old Office Lady 1

Marie Sharon

Old Office Lady 2

Ezra Sosa

Boy Dancer

Laura Bell Bundy

Aunt Carol

Tom Markus

Mr. Vandoy

Dane Stevens

Coach Dover

Jacque Gray

Miss Anderson

Carson Oliver

Mike Pinsetti

Jayne Luke

Bitter Old Office Lady

Anais Chantal

Enthusiastic Girl