Guest Stars Chris Gauthier as Vincent Tembi Locke as Grace Monroe Christopher Jacot as Larry Haberman Kavan Smith as Andy 2.0 Felicia Day as Holly Marten Wil Wheaton as Isaac Parrish Ming-Na Wen as Senator Michaela Wen Ben Ratner as Dr. Fung Ellie Harvie as Dr. Sanagustin Peter Kelamis as Dr. Mark Timmons Chad Riley as Commando Tina Milo Milivojevic as Scientist #1 Blaine Anderson as Candidate Todd Mason as Scientist #2