Shailene Woodley as Aileen "AJ" Roberts

AND

Jack Quaid as Richard "Richie" Kirsch

WITH

Sadie Soverall as Anastasia "Anya" Kincaid
Jack Champion as Ethan Landry
Bailee Madison as Lila Freeman
Megan Fox as Scarlet "Scar" Kincaid
Wolfgang Novogratz as Christian "Chris" Kincaid
Richard Harmon as Vincent "Vince" Schneider
Madelaine Petsch as Arianna "Ari" Macher
Josh Segarra as Danny Brackett
Melissa Barrera as Samantha "Sam" Carpenter
Theo James as Aaron Altieri
Daisy Edgar-Jones as Justina "Tina" Altieri
Liana Liberato as Quinn Bailey
Millie Bobby Brown as Lauren "Laurie" Schneider
Kyle Gallner as Simon Loomis
Ty Simpkins as Jason Landry
Jenna Ortega as Tara Carpenter
Vanessa Morgan as Isabella "Bella" Rodriguez
Mason Gooding as Chad Meeks-Martin
Jasmin Savoy Brown as Melinda "Mindy" Meeks-Martin
Devyn Nekoda as Anika Kayoko