The T-Rogorans were a species native to the Gamma Quadrant. During the 16th century they conquered a race of farmers known as the Skrreeans. The T-Rogorans killed most of the Skrreean leaders, and forced the rest of the population to work as laborers and servants.
In 2370, the T-Rogoran's were invaded and conquered by the Dominion, allowing the Skrreeans to escape. (DS9: "Sanctuary")
- The T-Rogorans were also referred to as "Tirogorans" in the episode script.