Smithy is the main antagonist and final boss of Super Mario RPG: Legend of the Seven Stars and the titular leader of the Smithy Gang, an organization that attempts to rule over Mario's World during the events of the game. In order to do this, Smithy tried to get rid of the power of wishes from the world, and, in its stead, fill the world with weapons. He is a dark-grey mechanical creature that wears a gold crown and has an extremely long white beard; the Nintendo Player's Guide has compared his appearance to that of Santa Claus. He hails from another dimension, a dimension that is accessible by the gateway Exor. In his dimension, he resides in his Factory, where, day and night, Smithy creates anthropomorphic weapons which he uses against other worlds. It is also implied during the final battle that multiple versions of him were made, and that there were possibly plans to mass-produce him, due to the various heads littered in his final battle arena.
In the Legacy of Chris Thorndyke, Smithy and his gang were recruited by the evil king Bowser for conquering the Mushroom Kingdom with an iron fist.
And he is voiced by Clancy Brown in the English dub and will be voiced by Tessho Genda in the Japanese dub.