Aaron Schimberg Director, Screenwriter Jess Weixler Mabel Actor Adam Pearson Rosenthal Actor Stephen Plunkett Max Actor Charlie Korsmo Herr Director Actor Sari Lennick Sarah Actor Daniel Gilchrist Demby Actor Avi Glickstein Doctor Glickstein Actor Miranda Gruss Miriam Actor Rebecca Gruss Eva Actor Daniel Patrick Carbone Producer Vanessa McDonnell Producer Matthew Petock Producer Jane Schoenbrun Producer Zachary Shedd Producer C. Spencer Yeh Music Adam J. Minnick Cinematographer Sofi Marshall Film Editing Kate Geller Casting Jessica Kelly Casting Sia Balabanova Production Design Alina Uzlov Art Director Stacey Berman Costume Design Karen Boyer Costume Design