Experiment 221, better known as Sparky, is an illegal genetic experiment created by Jumba Jookiba. He is the first experiment that Lilo and Stitch rehabilitated, and first appeared in Stitch! The Movie. He is designed to create crippling electric surges. His one true place is powering the Kilauea Lighthouse that had been abandoned for requiring too much electricity, though he offers aid to Stitch and his friends in The Series. Sparky is voiced by Frank Welker.