Mring-Mring was the king of the Gupins on the Forest Moon of Endor. Born sometime before the Battle of Yavin, he was the brother of Oobel and the cousin of Punt. Unlike most Gupins, Mring-Mring was born without wings. For this, he was outcast from the Gupin stronghold in the Endorian Grasslands. When the Ewok Deej Warrick took ill, Mring-Mring got the blame. Deej's sons, Wicket, Willy and Weechee, exonerated Mring-Mring and set him free. Mring-Mring then helped the Ewoks find the necessary medicinal herbs to cure their father.