Grace VanderWaal as Susan "Stargirl" Caraway

Judy Greer as Ana Caraway

Elijah Richardson as Evan

Uma Thurman as Roxanne Martel

Tyrel Jackson Williams as Terrell

Judd Hirsch as Mr. Mitchell

Nija Okoro as Daphne

Chris Williams as George

Al Madrigal as Iggy

Ben Geurens as Daniel

Kristin Slaysman as Jody

Sarayu Blue as Priya Collins

Conor Husting as Pedro

Sara Amini as Nicole

Noah Taliferro as Mike

Kelly Sry as Daryl

Adrienne Beal as June

Starr Gilliard as Etta Tutu

Janzy Paraiso as Young Women

Roman Arabia as Max

Chelsea Conwright as Young Waitress

Heather Grace Hancock as Manager

Matt Cordova as Ken

Peter G. Adams as Dan

Jasmine Ash as Maggie

Janelle Froehlich as Female Production Assistant

Joey Jennings as Male Production Assistant

Rebecca Ann Johnson as Tail Waitress

Ryan Freeland as Bart

Zuri Appleby as Melissa

Doug Petty as Ben

Sanjay Krishnamurthy as Shayar

Nikhil Pai as Salesman

Daniel Kim as Phil

Luanne Homzy as Busker

Nick Baxter as Cousin Baxter

Matthew Bridges as Director of Photography

Adam Foster Ballard as 2nd 2nd Assistant Director

Geo Lee as Production Assistant

Austin Zudek as Guitar Player