Mr. Grey

Mr. Grey, real name Mark Torvaldsen, was an office worker in the Hive, an extremely nervous man who was prone to spilling his coffee. Like everyone else in the Hive, he became infected with the T-Virus when it got out. He became trapped in an elevator with several other Hive workers, including Ms. Black and Mr. Red, where it is assumed he succumbed to the effects of the virus and became a zombie.