Harold James Potter was a crew member of the USS Enterprise-JFAZW. On stardate 4202112.7, Potter, serving as an ensign at that time helped to stop the ISS Enterprise (NCC-1701-JFAZW) from destroying the USS Enterprise in the mirror universe by magically entering the spirit realm and stopping Chakotay's onslaught of mystic deer by summoning his patronous and using it to kill all the sacred creatures in the mystic spirit forest.