The Builders are said to be the universe's oldest race. As they were "perfect", they molded a path of expansion in which they created "systems" to control the structure of space and time, different races called Alephs, Gardeners, Curators, Abyss and Caretakers.
There are two types of Builders, the Creators and the Engineers. Cultivating the universe for billions of years, they seeded worlds and directed the evolution of civilizations. Never had they been conquered. They were created by Mobius who saw them as his children.[2] The Builders consider him their father and supreme lord and worship him.
The Other who was a servant of Thanos before his death was a member of this Race.