Dr. Clint 'Doc' Cassidy(Billy Ray Cyrus)
Dr. Robert Smith(Richard Tse)
Ag. Nate Jackson(Richard Leacock)
Dr. Derek Hebert(Derek McGrath)
Dr. Oliver Crane(Ron Lea)
Infermiera Nancy Nichol(Andrea C. Robinson)
Raul Garcia(Tyler Posey)
Donna Dewitt(Ruth Marshall)
Beverly Jackson(Tracy Shreve)
Tippy Williams(Paula Boudreau)
Elliot(Taylor Abrahamse)
Receptionist(Rukiya Bernard)
Harley(Neil Dainard)
Jake(Mark Forward)
Dr. Ballenger(David Fraser)
Terri(Sarah Gadon)
Justin(Demetrius Joyette)
Capitano Doss(Kevin Jubinville)
Nellie(Linda Kash)
Frank(Duane Murray)
Junior(Billy Otis)
Jelly Bean(Kenny Robinson)
Dr. Kate Weston(Nancy Anne Sakovich)
Infermiera Royed(Anne Thornley-Brown)