Liliana Mumy is an American actress, voiceover artist and the daughter of the former child actor Bill Mumy. Her other voiceover roles include Myrtle Edmonds from Lilo & Stitch: The Series, Panini from Chowder, Twinkle from Higglytown Heroes, Beth Tezuka from Bravest Warriors, and Roxy from Winx Club. She also starred in several-live-action films, including The Santa Clause 2 and Cheaper by the Dozen. Her father is former child star Bill Mumy of Lost in Space and The Twilight Zone fame. She has also done a voice acting role in the Nickelodeon Movie Barnyard.
She provides the voice of Leni.