Emily Alyn Lind as Jamie Kelly

Mary-Charles Jones as Isabella

Sterling Griffith as Angeline

Natalie Alyn Lind as Claire Vanderhied (uncredited)

David Mazouz as Hudson Rivers

James Waterston as Assistant Principal Devon

Lea DeLaria as Ms. Bruntford

Maddie Corman as Jamie's Mom

Jeffrey Hanson as Jamie's Dad

Anson Bagley as Young Van Gogh

Marlys Miller-Fladeland as Old Office Lady 1

Marie Sharon as Old Office Lady 2

Ezra Sosa as Boy Dancer

Laura Bell Bundy as Aunt Carol

Tom Markus as Mr. Vandoy

Dane Stevens as Coach Dover

Jacque Gray as Miss Anderson

Carson Oliver as Mike Pinsetti

Jayne Luke as Bitter Old Office Lady

Anais Chantal as Enthusiastic Girl

Joyce Cohen as Mrs. Cutler

James Jamison as Doctor

Renny Grames as Nurse

Anne Sward as Important Person

Fred Schwab as Boring Old Relative

Clara Susan Morey II as Mrs. Clawson

Cameron Asay as Janitor

Taggert Brockbank as Boy Dancer

Skyler Johnson as Boy Dancer

Peiter Mortensen as Boy Dancer

Andrés Peñate as Boy Dancer

Tristen Sosa as Boy Dancer

Mira Spendlove as Girl Dancer

MaKayla Tanner as Girl Dancer

Lexi Bader as Girl Dancer

Stephani Sosa as Girl Dancer

Kenidee C. Allen as Girl Dancer

Hannah Gagon as Girl Dancer

Roger Malaga as Ninja Dancer

Jeffrey Louizia as Ninja Dancer

Bobby Amamizu as Dancer

Braeden Budge as Jump Roper

Vaughn Odenbrett as Wingman

Vaughn Travis as Man on Bus (uncredited)