Harper S. Ferry was a former Mesan genetic slave, a former member of the Audubon Ballroom, and a citizen of Torch. Harper was a member of Queen Berry's unofficial security team. When William Tyler attempted to assassinate Queen Berry by releasing an airborne toxin in the royal palace, Harper noticed an insane glare in Tyler's eyes. Harper pressed his panic button, giving others time to shut down the air conditioning, and slowing the spread of the toxin. His action saved many lives, possibly including Queen Berry, Princess Ruth, and Saburo X.