I think that a news reporter is the evil mastermind. Think about it. She always knows just how many people were killed and/or infected, and she knows if there were any survivors. She survived the first zombie takeover, and then repopulated the world. But as soon as the world got re-populated, another zombie outbreak starts, and guess who is there to cover the story
 "Infectonator 2"){kind=icon}
 "Boxhead: The Nightmare"){kind=icon}