Vulcan is a minor villain in the "Pastoral Symphony" segment in Disney's 1940 film Fantasia. In Greek Mythology, he is known as Hephaestus, the smithing god who forges weapons and other items.
Vulcan assists Zeus in creating a storm to ruin the party of the creatures on the foothills of Mount Olympus by creating lightning bolts to throw down to the earth below. He puts his tools away when Zeus decides to sleep after a stormy night of mischief.