T'Jon was an Ornaran freighter captain desperate for felicium, unaware that the drug his people craved was a narcotic.
T'Jon was the captain of an Ornaran freighter that the Enterprise rescued in Symbiosis. He was carrying felicium, which his people believed they needed to treat a plague, and he and his crewman Romas showed the symptoms of their condition.
T'Jon argued with the Brekkans Sobi and Langor over who owned the cargo after it was nearly lost. Dr. Crusher found that his symptoms were really withdrawal from a narcotic. T'Jon was left without the ship repairs he had hoped for when Picard decided the dependency had to end. Merritt Butrick played him.