Dylan O'Brien
— David
Fabrianna Borghese
— Jessica
Jonathan Brophy
— Mark
Dennice Cisneros
— The Angel (voice)
Ryan Finnerty
— Jake
Sianna Marie Greene
— The David Mother
Eli Irwin
— Axe Man
Justin Little
— Mr. Frown
James Petke
— Dr. Anders
Teresa Petke
— Cassie's Mom
Katie Reed
— Cassie
Matt Reed
— Krab
Cyrus Short
— Sean
Shawn Tilton
— Nathan
Tyler Tilton
— Noname