General Information
The Olympians are a race of powerful, psychokinetic beings native to the Alpha Quadrant. Though humanoid in appearance, they posses the power to alter their shapes at will, hurl bolts of energy, dominate the wills of others with their minds and travel through the void of space unaided. Some Olympians have the ability to alter molecular structures with their will to alter others clothing. All Olympians have exhibited unparalleled stamina. Medical reports have shown that the Olympians have the same arrangement of vital organs as humans but they have an additional organ in their chest which grants them these abilities.
While it is not known for certain, it assumed that their homeworld is Pollux IV. Roughly 7000 years ago, the Olympians traveled to Sol III (Earth). Technologically and biologically superior to the humans of ancient Earth, they were assumed to be gods. Much of their culture was adapted for human understanding and became the basis for Greek mythology. Known members of this race include Zeus, Apollo, Ares, Hera, Athena, Hyperion, Ozymandias, Artemis and Aphrodite. The Olympians eventually left Earth and settled on Pollux IV. By 2267, Apollo was the only Olympian still residing on Pollux IV. He mentioned that most of his race had "scattered themselves to the winds." In 2381, several more Oympians were found to be alive, living under assumed aliases across the Alpha Quadrant. At this time it is unknown if any more still exist.
Detailed History
Origins and Early History
After leaving Earth they travelled to Pollux IV, and then many went their different ways. Many simply faded away when they had no more worshipers (Hestia, for example) until there was only Apollo left on Pollux IV. He was encountered by crew of the Constitution-class Enterpise, but he eventually "spread himself on the wind" and faded like the rest. However, it is made to understand that this is not death like humans understand it. (TOS: "Who Mourns For Adonis")
Zeus had been imprisoned by his fellow beings at the Galatic Core, and Hyperion had been banished beyond the Galatic Barrier. A few, such as Ares and Ozymandias had gone incognito and settled on a different worlds.
Eventually the remaining Olympians would join with the crew of 'Tem in fighting off one of their own - the formidable Zeus.
Physiologically, they resembled an ordinary humanoid but had an extra organ that could channel powerful energy fields. It's the use of this organ that produces their godlike power.