Ulucca was a Wookiee, who lived during the waning years of the Galactic Republic. In c. 31 BBY, Ulucca was present in the Underground cantina on the moon Tilnes when collapses in the world's crystal mines resulted in the cantina's ceiling falling in, destroying the building. Ulucca subsequently accompanied the Heroes of Cularin, the Sullustan Tebari and the Humans Nia Reston, San Herrera and Philinda on an expedition into the crystal mines, to search for any people who had been trapped in the tunnels by the collapses.