Cast
Joey King
Wren
Javier Botet
Slender Man
Julia Goldani Telles
Hallie
Jaz Sinclair
Chloe
Annalise Basso
Katie Jensen
Kevin Chapman
M. Jensen
Alex Fitzalan
Tom
Miguel Nascimento
Kyle
Michael Reilly Burke
Hallie's Dad
J
Jessica Blank
Hallie's Mom
Kayla Caulfield
High School Student
Jeffrey Corazzini
Police Officer