Luka Kovac
Abby Lockhart
Gregory Pratt
Neela Rasgotra
Samantha Taggart
Ray Barnett
Archie Morris
Kerry Weaver
Dr. Eve Peyton
Steve Curtis
Nadine Hopkins
Jodie Kenyon
Dr. Victor Clemente
Mickey Goldstein
Olivia Evans (as China Jesusita Shavers)
Tamara Gordon
Nurse Chuny Marquez
Frank Martin
Nurse Haleh Adams
Alex Taggart
Nursing Supervisor (as Pat Lentz)
Dr. Jessica Albright
Pamela Olbes (as Lynn A. Henderson)
Kid
Heather Tocci
Caroler #1
Marlow (as J.T. Knight)
C.J. Gordon
Brian Dumar
Danielle Hopkins (as Kennedy Rue McCullough)
Kwanzaa Kenny
Louie
Santa Claus
Johnston
Riley
Detective Jones
Hanukkah Harry
X-Ray Technician (as David DiBrienza)
Singing Doctor (uncredited)