Chiss

From SWG Wiki

Hailing from the planet Csilla in the Unknown Region, the Chiss are a humanoid race whose distinguishing physical atributes are their blue skin, jet black hair, and glowing red eyes. As a people, the Chiss exhibit two major qualities: an aversion to seclusion and an extremely methodical way of thinking.

The majority of the galaxy was first introduced to the Chiss in the form of Grand Admiral Thrawn, the military genius who came close to succeding at reuniting the Imperial Remnant four years after the destruction of the second Death Star.