Mr. Hernandez is a default character from the Swedish website, Plotagon. He works as a local school teacher. Other than that, not much else is known about him.
Mr. Hernandez appears in All Star Smashers as a Master Spirit, where you must fight Tim Carter at Plotagon City to obtain him. When fighting Tim, his special moves will have increased power and effect time, you will be grounded, meaning you will be placed on the ground for the whole battle, and you will automatically lose if you touch the main floor.