Lucio Cupiello is a fictional character from the play "Natale in Casa Cupiello," written by Italian playwright Eduardo De Filippo. He is portrayed as a loving but somewhat naive father who is deeply attached to his family and traditions. Lucio's character embodies the struggles of a middle-class man in post-war Italy, often caught between his dreams and the realities of life. The play, set during the Christmas season, explores themes of family dynamics, misunderstandings, and the importance of communication. Lucio's interactions with his family members highlight the complexities of relationships, making him a relatable figure in Italian theater.