The Argolin, who appeared in the Fourth Doctor story The leisure hive (1980) by David Fisher, are the inhabitants of Argolis. In 2250, the Argolin, led by Theron, fought and lost a 20-minute nuclear war with the Foamasi. As a result of this war, the Argolin became sterile. They were also quite long-lived, but when they neared the end of their life they aged and declined very rapidly. The Argolin who survived the war put aside their race's traditional warlike ways and remade Argolis as "the first of the leisure planets", catering to tourists from many worlds. They built a "Leisure Hive" dedicated to relaxation and cross-cultural understanding; due to radioactive fallout from the war, the Argolin planned to live in the Hive for at least three centuries. Argolis continued to struggle financially, and by 2290 faced possible bankruptcy. A rogue faction of Foamasi known as the West Lodge attempted to purchase the entire planet to use as a criminal base, sabotaging recreation facilities in order to encourage the Argolin to sell. The criminal nature of the offer was exposed by a Foamasi agent, aided by the Fourth Doctor and Romana.
Since the Argolin were sterile, they attempted to renew their race using cloning and tachyonics, but only one of the clones, Pangol, survived to adulthood. Pangol was mentally unstable and obsessed with the Argolin's former warrior culture. He attempted to create an army of tachyonic duplicates of himself, but was unsuccessful and was eventually restored to infancy through the same tachyonic technology that had created him.
In appearance, Argolin are humanoids with yellowish skin. Their heads are covered with what appears to be elaborately coiffed hair, but may not be (since when Pangol is reduced to infancy he retains the distinctive Argolin hairstyle). Their heads are capped with small domes covered in beads, which fall off when the Argolin become sick or die.
The leisure Hive (1980) The Fourth Doctor and Romana visit a leisure hive on an alien planet but all is not what it seems as they try to save the planet from being bough by an enemy agent of the Fomasi