Sosie Bacon

Rose Cotter

Kyle Gallner

Joel

Jessie T. Usher

Trevor

Robin Weigert

Dr. Madeline Northcott

Caitlin Stasey

Laura Weaver

Kal Penn

Dr. Morgan Desai

Rob Morgan

Robert Talley

Gillian Zinser

Holly

Judy Reyes

Victoria Munoz

Jack Sochet

Carl Renken

Nick Arapoglou

Greg

Perry Strong

Detective Buckley

Matthew Lamb

Jackson

Dora Kiss

Mom

Meghan Brown Pratt

10 Year Old Rose

Jared Johnston

Orderly Dan

Ura Yoana Sánchez

Nurse Wanda

Vanessa Cozart

Nurse

Shu Q

Officer Chan

Shevy Gutierrez

Officer Wilkes

Sara Kapner

Stephanie

Steven Strickland

Deputy Sheriff

Kevin Keppy

Nightmare Mom

Marti Matulis

The Monstruosity

Scot Teller

Prison Guard (uncredited)

Setty Brosevelt

Driver / Pedestrian (uncredited)

Jerry Lobrow

Cocktail Party Guest (uncredited)

Nadia Ramdass

Nurse (uncredited)

Rachel Yong

Brash Colleague (uncredited)

Felix Melendez Jr.

Gabriel Munoz (uncredited)

Elaine Apruzzese

Psychiatric Patient (uncredited)

Shanea Lattimore

Drug Party Girl (uncredited)

Anne Schmalzigan

Angela Powell (uncredited)