Lilac is part of the Pussywillow Pixies. She has has a southern accent and appears to be vain.
She and her fellow pixies first met the Smurfs when Clumsy was accidentally taken into the hollow by a deer crossing Toad River. With the Smurfs' help, Pansy freed her fellow pixies from the Wartmongers and continue to live in the hollow, meeting the Smurfs from time to time ever since.