Luthor was a Human man in the 23rd century who worked aboard the harvester rig Rostok on the planet Prairie.
Biography
When the Rostok rescued Starfleet Captain Christopher Pike in the year 2254, Luthor objected to having the man aboard, associating Starfleet with "trouble", the very sort of people he'd settled on Prairie to get away from.
Shortly afterward, a Klingon landing party attacked the Rostok. He, Cabot, and the other workers scattered while Pike and Claire Thorn provided cover fire. (EV comic: "The Flat, Gold Forever")