Kiana Madeira
Sarah Fier / Deena
Benjamin Flores Jr.
Henry / Josh
Olivia Scott Welch
Hannah Miller / Samantha Fraser
Ashley Zukerman
Solomon Goode / Nick Goode
Darrell Britt-Gibson
Martin
Elizabeth Scopel
'Real' Sarah Fier
Julia Rehwald
Lizzie / Kate
Matthew Zuk
Elijah Goode / Mayor Will Goode
Fred Hechinger
Isaac / Simon
Michael Chandler
'The Pastor' Cyrus Miller
Sadie Sink
Constance / Ziggy Berman
Emily Rudd
Abigail / Cindy Berman
Lacy Camp
Grace Miller / Mrs. Fraser
McCabe Slye
Mad Thomas / Tommy Slater
Jordana Spiro
The Widow / Mrs. Lane
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
Noah Bain Garret
Skull Mask
Keil Oakley Zepernick
'Shame Killer' Isaac Milton
Kevin Waterman
'The Milkman' Harry Rooker
Ted Sutherland
Young Nick Goode
Lloyd Pitts
Nightwing Killer
Gillian Jacobs
Adult Ziggy / C. Berman
Daniel Thomas May
Officer Kuzio
Nilah Blasingame
Highschool Kid
Rachel Doman
Queen of Air and Darkness Girl