Leigh Janiak Director, Screenwriter, Executive Producer Kiana Madeira Deena Actor Ashley Zukerman Sheriff Nick Goode Actor Gillian Jacobs Adult Ziggy, C. Berman Actor Olivia Welch Samantha Fraser Actor Charlene Amoia Beth Kimball, Rachel Thompson Actor Drew Scheid Gary Actor Sadie Sink Ziggy Berman Actor Michael Provost Kurt Actor Ryan Simpkins Alice Actor Emily Rudd Cindy Berman Actor Benjamin Flores Jr. Henry Fier, Josh Actor Darrell Britt-Gibson Martin Actor McCabe Slye Mad Thomas Actor Julia Rehwald Lizzie Actor Fred Hechinger Isaac Actor Jordana Spiro The Widow Actor Elizabeth Scopel Sarah Fier Actor Phil Graziadei Screenwriter Peter Chernin Producer David Ready Producer Caleb Heymann Cinematographer Rachel Goodlett Katz Film Editing Marco Beltrami Original Music Scott Kuzio Production Design Sean Brennan Art Director Jess Royal Set Decoration Amanda Ford Costume Design Carmen Cuba Casting