Jessica Rothe as Julie Richman

Josh Whitehouse as Randy

Jessie Ennis as Stacey

Ashleigh Murray as Loryn

Chloe Bennet as Karen

Logan Paul as Mickey

Mae Whitman as Jack

Mario Revolori as Sticky

Rob Huebel as Steve

Judy Greer as Diana

Alex Lewis as Casper

Alex MacNicoll as Brad

Danny Ramirez as Chip

Andrew Kai as Rob

Allyn Rachel as Raechel Donahue

Randall Park as Principal Evans

Thomas Lennon as Rodney Bingenheimer

Chris Tavarez as Roger (aka Cute Prep)

Camila Morrone as Ruby

Emma Fassler as Drunk Princess Leia Girl

Dan Thiel as Mickey's Dad

Betsy Sodaro as Tough Bouncer

Brittany Panzer as Pat Benetar Girl

Mary Neely as Felecia

Peyton List as Courtney

Bill Kottkamp as Wastoid

Deborah Foreman as Shopgirl

E. G. Daily as Mickey's Mom (as E.G. Daily)

Josh Fadem as Gary

Nicole Byer as Deejay

Heidi Holicker as Mrs. H

Eric Garcetti as Mr. G

Jennie Pierson as Ms. Bostwick

Fred Tallaksen as Referee

Zachary Barnett as American Authors - Singer / Keyboards

Shelley James as American Authors - Guitar

David Rublin as American Authors - Bass

Matthew Sanchez as American Authors - Drums

Lindsey Troy as Deep Valley - Vocals / Guitar (as Lindsey Suzanne Troy)

Julie Scott Edwards as Deep Valley - Vocals / Drums

Trevor Brunsink as Guy at Door

Alicia Silverstone as Older Julie (uncredited)

Sandra Rosko as Punk Rocker (uncredited)

Fatimah Hassan as Beach Umbrella Girl #1 (uncredited)

Tiffany Tynes as Pier Dancer (uncredited)

Mason Trueblood as Arcade Nerd (uncredited)

Tiffany Daniels as Dancer (uncredited)

Nick Drago as Dancer (uncredited)

Cindera Che as Beach Tai-Chi People (uncredited)

Morgan Larson as Cheerleader (uncredited)

Jenny Babas as Jogger (uncredited)

Victoria Van Fleet as Dancer / High School Student (uncredited)

Ryan Allen Carrillo as Roller Skater (uncredited)

Connor Williams as Toby (uncredited)

Christina Miller as Ms. Commuter (uncredited)

Yindra Zayas as Dancer (uncredited)

Kurt Koehler as Ruby's Dad (uncredited)

Ryan Novak as Dancer (uncredited)

Leo Lam as Prince (uncredited)

Shantiel Alexis Vazquez as Mall Goer / Escalator Dancer (uncredited)

Lauren See as Cashier and Student (uncredited)

Chris Moss as Dancer (uncredited)

KC Monnie as Richard Simmons (uncredited)

Kelli Erdmann as Freshman Tag Along (uncredited)

Kelsey Kummerl as Student (uncredited)

Minn Vo as Skateboarder (uncredited)

Erica Hau as Prom Classmate (uncredited)

Seth Zielicke as Waiter (uncredited)

Chris Nuñez as Punk (uncredited)

Antwon Keith Collier as Pier Hot Guy (uncredited)

Brandon Mitchell as Skater (uncredited)

Elena Heuzé as Skateboarder (uncredited)

Pedro Lozano as Punk in Bar (uncredited)

Paula Beck Williams as Soda Shop Patron / Escalator Dancer (uncredited)

Valeriya Kovaleva as Prom Classmate (uncredited)