- as Mavis Gary
- as Buddy Slade
- as Beth Slade
- as Denny's Waitress
- as Sandra Freehauf
- as Matt Freehauf
- as Hedda Gary
- as David Gary
- as Jan
- as Mary Ellen Trantowski
- as Front Desk Girl
- as Vicki
- as Wheelchair Mike
- as Date Man
- as Teen Employee
- as Teen Employee
- as Girl
- as Girl
- as Party Guest
- as Parking Attendant
- as Champions Greeter
- as Mavis's Publisher (Voice)
Watch "Young Adult":