Ghoel was a highly intelligent Wol Cabasshite who lived during the Galactic Civil War. Members of his mollusk-like species rarely moved of their own accord, and by 4 ABY, Ghoel had become an immobile resident of the crime lord Jabba the Hutt's palace on the planet Tatooine. He clung to the walls, rafters, and arches of the Hutt's audience chamber and often gave newcomers to the palace exploratory licks with his long, prehensile tongue. Although such direct contact allowed Wol Cabasshites to communicate with members of other species, all of Jabba's henchmen were ignorant of Ghoel's intelligence.
Ghoel was in the audience chamber in 4 ABY when several members of the Rebel Alliance came to the palace to rescue their friend Han Solo, a smuggler who had been frozen in carbonite and hung on the chamber's wall. When the Rebel General Luke Skywalker arrived and killed Jabba's pet rancor, the Hutt sentenced Skywalker, along with a now-unfrozen Solo and the Wookiee Chewbacca, to be thrown into the jaws of a sarlacc that nested in Tatooine's Great Pit of Carkoon. As the protocol droid C-3PO translated the crime lord's Huttese edict into Basic, Ghoel attempted to lick the droid's head. Many members of Jabba's court boarded the Hutt's sail barge for the journey to the Sarlacc pit, but Ghoel was left behind. The sail barge was destroyed and Jabba slain when the Rebels made a last stand at the pit.