Justice Smith
Owen
Brigette Lundy-Paine
Maddy
Ian Foreman
Young Owen
Helena Howard
Isabel
Lindsey Jordan
Tara
Danielle Deadwyler
Brenda
Fred Durst
Frank
Conner O'Malley
Dave
Emma Portner
Amanda / Mr. Melancholy / Marco / Evil Clown
Madaline Riley
Polo
Amber Benson
Johnny Link's Mom
Albert Birney
Mr. Sprinkly
Michael C. Maronna
Neighbor 1
Danny Tamberelli
Neighbor 2
Timothy Allan
Lance
Tyler Dean Flores
Cade
Elizabeth Scopel
Drive-Thru Kid
Marlyn Bandiero
Brenda's Friend
Haley Dahl
Sloppy Jane Band Member
Raina Block
Sloppy Jane Band Member
Bailey Wollowitz
Sloppy Jane Band Member
Lily Rothman
Sloppy Jane Band Member
Phoebe Bridgers
Phoebe Bridgers
Kris Esfandiari
King Woman Band Member
Wilson Flores
King Woman Band Member
Thommy Northcut
King Woman Band Member
Julie Lodhy
King Woman Band Member
Michael Twaine
Older Theatre Goer #1 (uncredited)
Evangeline Johns
Older Theatre Goer #2 (uncredited)