Nayrok was a male Argosian who became the Prime Minister of Angosia III in the 24th century. In 2366, he represented his people in applying for Federation membership, and was answered with a visit from the USS Enterprise-D. However, a major incident occurred in which one of the Lunar V prisoners, Roga Danar, escaped on a transport. Nayrok and Zayner requested assistance from the crew of the Enterprise in apprehending Danar. He was captured on the Enterprise and escaped again, but not before the crew learned of his background as a genetically engineered and psychologically altered soldier. When Captain Jean-Luc Picard attempted to speak with Nayrok on the matter, Nayrok refused to cooperate on the basis that it was a matter of internal security, which obliged Picard to comply.