The Morish were a short, furry, loud-voiced species from the planet Morishim in the Outer Rim. During the Galactic Empire reign, a secret communications centre was established in a cave on Morishim. After the Empire pulled out, a Morish known as the Old Recluse found the abandoned communications link, and used its newsfeeds to fool others into believing he had clairvoyant abilities.
Morish were perfectly capable of speaking Basic, but those Morish who did speak Basic often pretended not to.