Paz de la Huerta as Abby Russell

Katrina Bowden as Danni Rogers

Judd Nelson as Dr. Robert Morris

Corbin Bleu as Steve

Boris Kodjoe as Detective Rogan

Melanie Scrofano as Rachel Adams

Niecy Nash-Betts as Regina

Martin Donovan as Larry Cook

Chris Hoffman as Married Man / Fred

Brittany Adams as Young Nurse

Kathleen Turner as Head Nurse

Jake Michaels as New Dad

Adam Herschman as Jared

Patrick Kwok-Choon as EMT #1

Tracy Michailidis as Abby's Mom

Jeff Pangman as Dr. Robert Price

Elyse Mason as Pretty Young Nurse

Dr. Linda Papadopoulos as Danni's Mom (Marcia)

Milan Carmona as Hispanic Kid

Kate Maxx as Nurse Hansen

Kjartan Hewitt as Orderly

Gregory Dunham as Urine Bag Patient

David Huband as Detective Goldberg

Lori Pearlstein as Support Speaker

Michael Eklund as Richie

Katia Peel as Young Abby (5 years)

Landy Cannon as Hawaiian Shirt Guy

Joe MacLeod as EMT #2

Layton Morrison as Truck Driver

Amanda Armagon as Receptionist

Michael Therriault as Anatomy Professor

Lauro David Chartrand-DelValle as Security Guard

Stephan Dubeau as Doctor

Adam Richard Benish as Peter Larson (uncredited)

Yulia Lukin as Larry's Date (uncredited)

Blake Mawson as Bloody Boyfriend on Stretcher (uncredited)

Marc Andrew Smith as Doctor (uncredited)