Pariah is the son of Elizabeth Greene, who was captured during the outbreak of Hope, Idaho in 1969. He is considered a completely different form of being from Elizabeth Greene and Alex Mercer, and by extension, James Heller, since Elizabeth is an imperfect release of non-coded regions of the genome, while Mercer is an artificial release. Blackwatch scientists speculated that Pariah could be the final purpose of all life on earth.