Characters played by Kristen Bell
Mattie
Characters played by Ian Somerhalder
Dexter
Characters played by Christina Milian
Isabelle Fuentes
Characters played by Rick Gonzalez
Stone
Characters played by Jonathan Tucker
Josh
Characters played by Samm Levine
Tim
Characters played by Octavia Spencer
Landlady
Characters played by Ron Rifkin
Dr. Waterson
Characters played by Joseph Gatt
Dark Figure
Characters played by Kel O'Neill
Douglas Zieglar
Characters played by Zach Grenier
Professor Cardiff
Characters played by Riki Lindhome
Janelle
Characters played by John Burke
Newscaster
Characters played by Mike J. Regan
Phantom
Characters played by Steve Tom
Male Newscaster #2
Characters played by Robert Clotworthy
Calvin
Characters played by Moira Price
Sarah
Characters played by Di Quon
Christina
Characters played by Brad Dourif
Thin Bookish Guy
Characters played by Christine Barger
Goth Girl
Characters played by Corryn Cummins
Crying Girl
Characters played by Grant George
U.S. Army Emergency Broadcaster
Characters played by Jeremy Guskin
R.A.
Characters played by Tate Hanyok
Cafe Girl
Characters played by John Jurgens
Über Phantom
Characters played by Julie Lancaster
Female Newscaster
Characters played by Lee Lourdes
Newscaster #2
Characters played by Josh Burian Mohr
Library Phantom
Characters played by Amanda Tepe
Grad Student
Margaret