Gorgs are the giant characters of Fraggle Rock. Though apparently there were other Gorgs at one point, the only ones shown are a family unit, consisting of Pa Gorg, Ma Gorg, and Junior Gorg, a royal family as well as the self-proclaimed rulers of the Universe.
Other Gorgs, such as Ma's mother Queen Esmerelda and King Gorgus the Great, have been mentioned, but no others appeared on the series. It is unknown if Ma, Pa and Junior are the only Gorgs left, or if there are others and they simply have never been seen.
In the first season episode "The Great Radish Famine" it is learned that Gorgs need to use a special cream to keep themselves from becoming invisible. In the book If I Were King of the Universe, Junior admits that he doesn't know where the other Gorgs have gone, and if they will ever return.
In the fifth season episode "Ring Around the Rock," Ma and Pa celebrated their 513th wedding anniversary. Since this episode aired in 1987, this may place their wedding date in the year 1474, although it is possible that time does not work the same way in the Gorgs' Garden as it does in the real world.