The Makers were a race that existed in multiple dimensions and could manipulate the fabric of time and space.
Biology
The Makers constituted a group mind and therefore had no concept of individuality. The Makers were small, purple-grey humanoids roughly the size of a human baby but with extremely large heads. They had sideways opening eyes, no ears and no nose. Their hands had three short fingers and a thumb, and they had a long thin tail. The Makers communicated by telepathy or empathy. (EDA: The Space Age)
History
A Maker crash landed on Earth in 1963 and transported one group of Mods and one group of Rockers to a small planetoid in the future, creating a futuristic city for them to live in, which synthesized their food, water and oxygen. (EDA: The Space Age)