Méndez dyes his hair of many colors throughout the series (at the end of the series it was rose red). Coming from a rather poor family, Méndez actively tries to hides his low-class beginnings and parentage. For that very same reason, Méndez always shoots for a chance at easy money. Méndez's parents had humble beginnings but became rich after his father won the lottery. However, the personal administrator of the family fortune committed fraud and stole all of the family's possessions, which forced them to return to their original lives as the owners of a butcher shop. Méndez is also a hopeless womanizer, unable to remain faithful to just one woman (which mostly explains why his relationship with Vico ended in failure). He gets into a relationship with Augustina, a rich girl who gives Giovanni expensive gifts at the drop of a dime, wooing Giovanni to her feet.