Michael Biehn

as Jonathan Miller

Alexandra Daddario

as Allison

Nolan Gerard Funk

as William

Spencer List

as Martin

Brett Rickaby

as Graham Sutter

John Savage

as Ted

Peyton List

as Wendy

Kathryn Meisle

as Karen

Valentina de Angelis

as Melissa

Greg Wood

as Teacher

Ashley Wolfe

as Katherine

Matthew Mindler

as Boy Playing Soccer

Jamie Farrell

as Nurse's Aide

Jonathan Walker

as Doctor

Chase Pechacek

as Young Martin

Shannon Lambert-Ryan

as Lucy Cardova

Miriam A. Hyman

as Sarah

Adam Ratcliffe

as Officer Jones

Courtney Bertolone

as Courtney Harrison (archive footage / uncredited)

Jay Cohen

as Adult Martin (uncredited)