Guest Stars Norman Black as Professor Keane Michael Ray as General Armstrong Don Baldaramos as General Sears Shiah Luna as Lucken Cynthia Perez as Merissa Roy Allen III as Gerard Molly Nolan as Human Lab Rat Jules Di Mauro as Marcus Vampire Guard Peter Barrett as Matthew Angelo Di Maura as Marcus Vampire Guard Anna Nightingale as Sheena Jeremy Michael Stage as Vampire 1 Javier Diaz as Vampire 1 Brenda Schmid as Dr. Samantha Mudd Merissa Porter voices Quarantine Telephone Voice Adam Matruski as Soldier 1 Sean Paul Ross as Soldier 2 Christian Solis as Soldier 3 Tim Heath as British Prime Minister Chris Wilson as British Army Official