Jaeden Martell as Kevin Schlieb

Adrian Greensmith as Hunter Sylvester

Isis Hainsworth as Emily Spector

Noah Urrea as Clay Moss

Brett Gelman as Dr. Sylvester

Analesa Fisher as Kendall Sarn

Michelle Mao as Lisa Randall

Phelan Davis as Rocky 'Skip' Hoffman

Austin Huynh as Tim

Joe Manganiello as Dr. Troy Nix

Teddy Van Ee as Ray

Aroon Nagappan as Mollycoddle Bassist

Kieran Thomas as Mollycoddle Keyboardist

Jonathan Saks as Trombonist

Sufe Bradshaw as Dean Swanson

Jalon Howard as Jesse

Jeff Steitzer as Janitor Eli

Christopher M. Lopes as Robbie

Audrey Jones as Andrea

Rachel Pate as Ms. Johnson

Elliot Orr as Quentin

Dre Slaman as Rehab Receptionist

Katie O’Grady as Laurie Schleib

Sami Yacob-Andrus as Sophomore Girl

Liam Krug as Remote Kid

Paige Johnson Jones as School Librarian

Grayson Palumbo as Earl

Chuck Klosterman as Marching Band Leader

Kain Dracula Ashford as Bass Guy

Joseph Bertót as Desk Officer

David McAndie as Frank Marino

James McAndie as Joe Marino / Edward Marino

Cameron Wake as Hesher in Training #1

Parker Hall as Hesher in Training #2

Jason Rouse as Moss Security Guard

Christian Pereira as Rex

Kieran Gettel-Gilmartin as Kid

Cherish Hales as Ew Girl

Scott Ian as Scott Ian

Tom Morello as Tom Morello

Kirk Hammett as Kirk Hammett

Rob Halford as Rob Halford

Ella DeVito as Party Girl

Kaleseya Allotey as Lisa's Crew (uncredited)

Katie McCabe as Model

Troy Oelke as Perpetrator (uncredited)

Parker Green as Back Row Student