Characters played by Hayden Christensen
Clay Beresford
Characters played by Jessica Alba
Sam Lockwood
Characters played by Terrence Howard
Dr. Jack Harper
Characters played by Lena Olin
Lilith Beresford
Characters played by Christopher McDonald
Dr. Larry Lupin
Characters played by Sam Robards
Clayton Beresford Sr.
Characters played by Arliss Howard
Dr. Jonathan Neyer
Characters played by Fisher Stevens
Dr. Puttnam
Characters played by Georgina Chapman
Penny Carver
Characters played by David Harbour
Dracula
Characters played by Steven Hinkle
Young Clay
Characters played by Denis O'Hare
Financial News Analyst
Characters played by Charlie Hewson
Brian the Orderly
Characters played by Court Young
Officer Doherty
Characters played by Joseph Costa
Dr. Elbogen
Characters played by Poorna Jagannathan
Dr. Neyer's Nurse
Characters played by Lee Wong
Mr. Waturi
Characters played by Kae Shimizu
Asian Translator
Characters played by Steven Rowe
Teacher
Characters played by Jeffrey Fierson
Head Chef
Characters played by John C. Havens
Policeman
Characters played by Richard Thomsen
Minister
Characters played by Joshua Rollins
Funeral Minister
Characters played by Brenda Schad
Pregnant Woman
Characters played by Sam Pitman
Zombie
Characters played by Ross Klavan
Financial News Analyst #2
Characters played by Christopher Cussat
Hospital Pager
Characters played by Rana Morrison
Nurse
Characters played by Brian Murray
Student
Characters played by Nikky Smedley
Teacher