Chloë Grace Moretz

Carrie White

Julianne Moore

Margaret White

Gabriella Wilde

Sue Snell

Ansel Elgort

Tommy Ross

Alex Russell

Billy Nolan

Judy Greer

Miss Desjardin

Portia Doubleday

Chris Hargensen

Zoë Belkin

Tina Blake

Samantha Weinstein

Heather

Karissa Strain

Nicki Watson

Katie Strain

Lizzy Watson

Demetrius Joyette

George Dawson

Barry Shabaka Henley

Principal Henry Morton

Eddie Max Huband

Harry Trenant

Connor Price

Freddy 'Beak' Holt

Jefferson Brown

Mr. Ulmann

Cynthia Preston

Eleanor Snell

Philip Nozuka

Ernie Peterson

Kyle Mac

Kenny

Michelle Nolden

Estelle

Mouna Traoré

Erika

Chris Britton

Dr. Dean L. McDuffy

Derek McGrath

Head Commissioner

Max Topplin

Jackie

Irene Poole

Estelle's Mother (uncredited)

Hart Bochner

Mr. Hargensen (uncredited)

Natalie Dale

Rachel Spies (uncredited)

Chloe Van Landschoot

Flower Girl (uncredited)

Kim Roberts

Ms. Arlene Walsh (uncredited)

Annie Chen

Myra Crewes