T'Jon

From Memory Alpha, the free Star Trek reference.

T'Jon was an Ornaran captain, commanding officer of the Sanction, a vessel used to transport goods to the Brekkians in exchange for medication, called felicium, for a plague.

During one trip the ship ran into trouble. The USS Enterprise-D, which was near, offered assistance. They beamed over a replacement coil, but T'Jon, who was barely able to pilot the ship due to his felicium addiction, was not able to install it. When the Enterprise attempted to beam the passengers to safety, T'Jon had the felicium beamed over first. Then he, another Ornaran and two Brekkians were transported aboard the Enterprise. He was more concern with the drug than with the two crewmembers he lost when his ship exploded.

When the Brekkians refused to give up the cargo to T'Jon, insisting that the payment for the drug was lost with the ship, they began to fight, using their natural electric charge. T'Jon threatened Riker with the charge unless Picard helped them. Picard realized that the felicium was a narcotic and the plague no longer existed. Picard refused to repair T'Jon's freighters in the hopes that without the ships, the Ornarans would begin withdrawl from the drug. (TNG: "Symbiosis")

T'Jon was played by actor Merritt Butrick.