Cast

• Kiana Madeira — Deena/Sarah Fier
• Benji Flores Jr. — Josh/Henry
• Julia Rehwald — Lizzie / Kate
• Fred Hechinger — Isaac / Simon
• Sadie Sink — Constance / Ziggy Berman
• Olivia Scott Welch — Sam Fraser/Hannah Miller
• Emily Rudd — Abigail / Cindy Berman
• Gillian Jacobs — C. Berman / Adult Ziggy
• Darrell Britt-Gibson — Martin
• Elizabeth Scopel — The Real Sarah Fier
• Ashley Zukerman — Solomon Goode/Nick Goode
• Randy Havens — George Fier
• Matthew Zuk — Elijah Goode/Mayor Will Goode
• Michael Chandler — 'The Pastor' Cyrus Miller
• Lacy Camp — Grace Miller/Mrs. Fraser
• McCabe Slye — Mad Thomas/Tommy Slater
• Jordana Spiro — The Widow/Mrs. Lane
• Jeremy Ford — Caleb/Peter
• Patrick Roper — Union Townsman 1
• Robert Bryan Davis — Union Townsman 2
• Lynne Ashe — Union Townswoman
• Charlene Amoia — Beth Kimball/Rachel Thompson
• Mark Ashworth — Jakob Berman
• Todd Allen Durkin — The Watchman/Officer Kapinski
• Ryan Simpkins — Alice
• Noah Bain Garret — Skull Mask
• Keil Oakley Zepernick — 'Shame Killer' Isaac Milton
• Emily Brobst — Billy Barker
• Kevin Waterman — 'The Milkman' Harry Rooker
• Jordyn DiNatale — Ruby Lane
• Ted Sutherland — Young Nick Goode
• Lloyd Pitts — Nightwing Killer
• Daniel Thomas May — Officer Kuzio
• Meghan Packer — TV Anchor
• Nilah Blasingame — Highschool Kid
• Rachel Doman — Queen of Air and Darkness Girl