1. Overview

Humans of the Dominion—known as Cassians—are fervent believers in their glorious destiny. Chosen by the Eldan to be the inheritors of their ancient legacy, Cassians built the Dominion, formed the Vigilant Church, and drove the heretics who denied Eldan divinity into exile. Cassians' devotion to their empire makes them natural leaders, monumental builders, and stalwart soldiers. Intelligent, industrious, and intensely committed, Cassians serve as the social, industrial and moral compass for the Dominion—and will fiercely fight to fulfill their destiny as the rightful rulers of planet Nexus.

LORE NOTE: Today, only Dominion humans are generally called "Cassians." Those who left Cassus hundreds of years ago and now side with the Exiles are known as "Exile humans."

Source: Loremageddon