Julia Hart Director, Screenwriter Lily Rabe Rachel Stevens Actor Timothée Chalamet Billy Actor Lili Reinhart Margot Actor Anthony Quintal Sam Actor Oscar Nunez Principal Alvarez Actor Rob Huebel Walter Actor Grant Jordan Trevor Actor Tamir Yardenne George Actor Una Jensen Jordan Hargrove Actor Larry Bam Hall Stage Manager Actor Noah Gray-Cabey Other Student Actor Jordan Horowitz Screenwriter, Producer Alex Turtletaub Producer Michael B. Clark Producer Gary Gilbert Producer Sebastian Winterø Cinematographer Lee Haugen Film Editing Amy P. McGrath Film Editing Rob Simonsen Original Music Michele Yu Production Design Cindy Chao Production Design Lizzie Boyle Set Decoration Elizabeth Warn Costume Design Matthew Lessall Casting