Nick Robinson

Character: Simon

Jennifer Garner

Character: Emily

Josh Duhamel

Character: Jack

Katherine Langford

Character: Leah

Alexandra Shipp

Character: Abby

Logan Miller

Character: Martin

Keiynan Lonsdale

Character: Bram

Jorge Lendeborg Jr.

Character: Nick

Talitha Eliana Bateman

Character: Nora

Tony Hale

Character: Mr. Worth

Natasha Rothwell

Character: Ms. Albright

Miles Heizer

Character: Cal

Joey Pollari

Character: Lyle

Clark Moore

Character: Ethan

Drew Starkey

Character: Garrett

Mackenzie Lintz

Character: Taylor

Cassady McClincy-Zhang

Character: Jackie

Alex Sgambati

Character: Terrible Liar Girl

Jamila Thompson

Character: Additional Posse Girl

Emily Jordan

Character: Creekwood Girl

Patrick Donohue

Character: Math Teacher

Terayle Hill

Character: Spencer

Tyler Chase

Character: Aaron

Haroon Khan

Character: Suraj

Joshua Mikel

Character: Ride Operator

Nicholas Stargel

Character: Fantasy Teen

Nancy De Mayo

Character: Nick's Mom

Christian Ojore Mayfield

Character: Nick's Dad

Chantell D. Christopher

Character: Abby's Mom

Mandy Fason

Character: Leah's Mom

Philip Covin

Character: Leah's Dad

Campbell Godfrey

Character: Little Man

Robbie Rogers

Character: The Coach

Christopher L. Plunkett

Character: Dancer

Jessi Peralta

Character: Dancer

Carsen Rowe

Character: Dancer

John James

Character: Dancer

Ahsia Pettigrew

Character: Dancer

Erick Nathan

Character: Dancer

Ahmed Zakzouk

Character: Dancer

Erica Lee Rahola

Character: Dancer

Aaron Davidson

Character: Dancer

Jonathan Fritschi

Character: Dancer

Jaidi Ventura

Character: Dancer

Kyle 'Wolfy' Walker

Character: Dancer

Matthew Laraway

Character: Dancer

Delisha Williams

Character: Dancer

Ivan A. Gomez

Character: Dancer

Dylan Cheek

Character: Dancer

Danni Heverin

Character: Dancer

Erica Ray

Character: Dancer

Ashley Rogers

Character: Dancer

Aryes Cox

Character: Dancer

David Copeland Brown Jr.

Character: Tyler (uncredited)

Bryson Pitts

Character: 10-Year-Old Simon Spier (uncredited)

Nye Reynolds

Character: 5-Year-Old Simon Spier (uncredited)

Skye Mowbray

Character: 6-Year-Old Nora Spier (uncredited)

Samantha Bulka

Character: Ethan's Posse (uncredited)

Baz Ma

Character: Ethan's Posse (uncredited)

Natalia Tureta

Character: Ethan's Posse (uncredited)

Briana Estevez

Character: Cheerleader (uncredited)

Jönah-Blainé Bowling

Character: Trendy Jock (uncredited)

Sean O'Donnell

Character: High School Student (uncredited)

Collin McHugh

Character: High School Student (uncredited)

Abigail Houck

Character: High School Student (uncredited)

Jodi Houck

Character: Parent (uncredited)

Josh Royston

Character: Parent (uncredited)

Tyson Love

Character: Football Parent (uncredited)

Jordan Doww

Character: High School Student (uncredited)