Rollebesetning

• Grace VanderWaal — Susan "Stargirl" Caraway
• Graham Verchere — Leo Borlock
• Karan Brar — Kevin Quinlant
• Maximiliano Hernández — Mr. Robineau
• Darby Stanchfield — Gloria Borlock
• Giancarlo Esposito — Archie Brubaker