- Lea Michele as Rachel Berry
- Cory Monteith as Finn Hudson (seasons 1–4)
- Chris Colfer as Kurt Hummel
- Mark Salling as Noah "Puck" Puckerman
- Kevin McHale as Artie Abrams
- Dianna Agron as Quinn Fabray
- Naya Rivera as Santana Lopez
- Heather Morris as Brittany S. Pierce
- Amber Riley as Mercedes Jones
- Jenna Ushkowitz as Tina Cohen-Chang
- Matthew Morrison as William Schuester
- Jane Lynch as Sue Sylvester