Don Diego de la Vega is a fictional character best known as the secret identity of Zorro, a masked vigilante who fights for justice in early California. He is portrayed as a wealthy nobleman who appears to be lazy and carefree, but beneath this facade lies a skilled swordsman and a champion of the oppressed. By night, Don Diego dons a black mask and cape, using his cunning and agility to outsmart corrupt officials and protect the innocent. His adventures often involve clever disguises, daring rescues, and a signature mark of a "Z" left behind as a symbol of his fight against tyranny.