Pearl is a brown monster with a tall head and a pink nose. She lives in a cave with Deena, whom she takes care of. Pearl likes peace and quiet, which she doesn't always find due to Deena's endless energy.
Although Deena first appeared in season 11, Pearl made her debut during season 12. The two virtually disappeared after that season, although they both reappeared in the wedding finale of The Muppets Take Manhattan.
The Pearl puppet has since been used as a utility puppet in a variety of sketches, removing her orange tuft of hair.