Toni Collette character Annie Graham
Alex Wolff character Peter Graham
Gabriel Byrne character Steve Graham
Milly Shapiro character Charlie Graham
Ann Dowd character Joan
Christy Summerhays character Charlie's Teacher
Mallory Bechtel character Bridget
Brock McKinney character Aaron
Jake Brown character Brendan
Morgan Lund character Mr. Davis
Jarrod Phillips character Group Leader
Heidi Méndez character Spanish Speaking Woman
Zachary Arthur character Boy in Room
Moises L. Tovar character Translator
Austin R. Grant character Stoner #1
Gabriel Monroe Eckert character Stoner #2
Bus Riley character History Teacher
Harrison Neil character Student #1
BriAnn Rachele character Student #2
David Stanley character Man at Wake
Ari Aster character Asher Gallery Representative (voice) (uncredited)
Mark Blockovich character Support Group Member (uncredited)
Kathleen Chalfant character Ellen Taper Leigh (uncredited)
John Forker character Funeral Attendee (uncredited)
Rachelle Hardy character Cult Member (uncredited)
Marilyn Miller character Woman in the Tree (uncredited)
Jason Miyagi character High School Partier (uncredited)
Lorenzo Silva character Skater Boy (uncredited)
Alexis Long character Cake Girl (uncredited)
