Quentin Jacobsen

Nat Wolff

Margo Roth Spiegelman

Cara Delevingne

Ben Starling

Austin Abrams

Lacey Pemberton

Halston Sage

Radar

Justice Smith

Mrs. Jacobsen

Cara Buono

Angela

Jaz Sinclair

Becca Arrington

Caitlin Carver

Young Quentin

Josiah Cerio

Jase

Griffin Freeman

Young Margo

Hannah Riley

Ruthie

Meg Crosbie

Beer Bong Guy

Mehmet Korhan

Chuck Parsons

RJ Shearer

Jase's Crew

Stephen Mackenzie Brown

Mrs. Spiegelman

Susan Macke Miller

Trick or Treater

Cameron Mills

Mr. Spiegelman

Tom Hillmann

Mr. Jacobsen

Stevie Ray Dallimore

Bouncer

Robert Crayton

English Teacher

Jay Duplass

Student

Graham Hunt

Freshman Girl

Emma O'Loughlin

Detective Warren

Jim R. Coleman

Ben (Age 12)

Kendall McIntyre

Check-Out Girl

Yossie Mulyadi

Gus

Drew Matthews

Spanish Teacher

Marta Martin

Mason (uncredited)

Ansel Elgort

Student in Hallway 1

Virginia Riggsbee

Student in Hallway 2

Bailey Nemirow

Student in Hallway 3

Christopher Pell

Fashionable Girl

Sophia Grillo

Roadside Assistant

Rob C. Baldwin

Becca's Father (voice) (uncredited)

John Green