Mae Whitman as Bianca Piper

Robbie Amell as Wesley Rush

Bella Thorne as Madison Morgan

Skyler Samuels as Jess Harris

Bianca A. Santos as Casey Cordero

Romany Malco as Principal Buchanon

Nick Eversman as Toby Tucker

Chris Wylde as Mr. Fillmore

Ken Jeong as Mr. Arthur

Allison Janney as Dottie Piper

Seth Meriwether as A.J.

Rebecca Weil as Caitlyn

Erick Chavarria as Señor Gomez

Brian Dewar McNamara as Matt

Benjamin Taylor Davis as Jeffrey

RJ Shearer as Albert

Eric R. Moore as Paul

J.J. Green as Trevor

Paras Patel as Anupam

Murielle Telio as Mariah

Mahaley Patel as Kara (as Mahaley Manning)

Alexandra Ficken as Robin

Jill Jane Clements as Lunch Lady Elaine

Fiona Hardingham as Heidi

Demetrius Bridges as Jarrett

Lai-Ling Bernstein as Octavia

Tony Cavalero as Sweater Guy (as Anthony John Cavalero)

David Gridley as Allen

Beau Rich as Robert

Krissy Notes as Laura

Richard Kohberger as Johnny

Benjamin Papac as Nick (as Ben Papac)

Marisela Zumbado as Nora

Kyle Wilkerson as Silas

Kurt Krause as Geoff

Jonathan Baron as Sebastian

Dorothy Reynolds as Tali

Cason Richter as Lance

Danielle Sherrick as Creepy Carrie

Emily Norcia as Lee

Danielle Lyn as Maya

Veanna Black as Rochelle

Turner J. Wheat as Troy (as Turner Wheat)

Terri Abney as Kid (uncredited)

Christy Alcroft as Girl in Class (uncredited)

Madeline Brumby as Student (uncredited)

Samuel Lee Fudge as Student (uncredited)

Gabriela Hernandez as Ashley (uncredited)