Everett Tibbles
Riley King
Alyssa Perry
Gaby Perry
Elena Mendoza
Scottie Kogan (as Nathaniel Potvin)
Principal Speckler
Carissa Donnelly
Secretary Janice
Lyle Spitz (as Cade Cannon Ball)
David
Selfie Sam
Stanley Berman
Custodian Ken
Penelope Plemens (as Quinn Martin)
Young Everett
Young Mendoza
Mrs. Hutcherson
Gary Greenthumb (as Skyler James)
Doctor
Teacher
Lifeguard
Sandi (voice)
Brooke Barnes (as Haley Gilchrist)
Andi Duncan
Student
Student (as Maddie Page)
Student (as Tyler Felix)
Student (as Madison Nguyen)
Lunchbox Girl (as Katie Scott)
Student (as Thomas Spaulding)
Student (as Tai-Alexander Urban)
Licey Larry
Andy