Harry Tully was one of Derek Powers' lab workers at the Wayne-Powers Corporation and a close friend of Warren McGinnis. Harry apparently was working with Powers on his viral mutagen project, but had a change of heart after he accidentally became infected with the virus. After telling Warren to meet him, he gave his friend a data disc containing all the information on the virus. Before he could tell Warren any more, Harry collapsed from the virus' degenerative effects and was taken away by Mr. Fixx. Later, it was revealed in a series of photographs shown to a potential buyer for the virus by Powers that Harry died from the disease.