Elmo Sputterspark, better known as Megavolt, is a fictional character, a super-villain from the animated television series Darkwing Duck, produced by Disney. He appears to be an anthropomorphic "dog/rat/weasel thing". Megavolt is voiced by Dan Castellaneta.

One of the larger measures of electro-motive force, amounting to one million volts.

One million watts.