Cailee Spaeny Lily Lovie Simone Tabby Gideon Adlon Frankie Zoey Luna Lourdes David Duchovny Adam Michelle Monaghan Helen Nicholas Galitzine Timmy Julian Grey Abe Charles Vandervaart Jacob Donald MacLean Jr. Isaiah Fairuza Balk Nancy Downs Chris Tomassetti Jeremy Kris Siddiqi Sex-Ed Teacher James Madge Mr. Bly Devin Cecchetto Popular Girl Debbie Fan Woman Behind Desk Eddie Max Huband Bully Michael Dara Cat Calling Man (uncredited)