When the dead discover a means to contact the living through electronic devices, cellphones and computers become open gateways to monstrosities and destruction.
| Actor | Role |
|---|---|
 Kristen BellMattie | Mattie |
 Ian SomerhalderDexter | Dexter |
 Christina MilianIsabelle Fuentes | Isabelle Fuentes |
 Rick GonzalezStone | Stone |
 Jonathan TuckerJosh | Josh |
 Samm LevineTim | Tim |
 Octavia SpencerLandlady | Landlady |
 Ron RifkinDr. Waterson | Dr. Waterson |
 Joseph GattDark Figure | Dark Figure |
 Kel O'NeillDouglas Zieglar | Douglas Zieglar |
 Zach GrenierProfessor Cardiff | Professor Cardiff |
 Riki LindhomeJanelle | Janelle |
 John BurkeNewscaster | Newscaster |
| MMike J. ReganPhantom | Phantom |
 Steve TomMale Newscaster #2 | Male Newscaster #2 |
 Brad DourifThin Bookish Guy | Thin Bookish Guy |
 Christine BargerGoth Girl | Goth Girl |
 Di QuonChristina | Christina |
| MMoira PriceSarah | Sarah |
 Robert ClotworthyCalvin | Calvin |
 Tate HanyokCafe Girl (uncredited) | Cafe Girl (uncredited) |
 Julie LancasterFemale Newscaster (uncredited) | Female Newscaster (uncredited) |
 Grant GeorgeU.S. Army Emergency Broadcaster | U.S. Army Emergency Broadcaster |
 Tobey MaguireTristan Hartson | Tristan Hartson |
 Jack BlackJack Sharp | Jack Sharp |