Builder

The Builders are a class of Forerunners considered to be the most powerful in terms of intelligence, wealth, and political power. As it's name suggests, the builders are responsible for the myriad of technologically advanced structures and objects seen throughout the Milky Way galaxy, including the Halo Array.

Known builders

 * Father and ancestors of Bornstellar Makes Eternal Lasting

List of appearances

 * The Forerunner Saga
 * Halo: Cryptum

Internal

 * Forerunners