- Isabel: Isabel is the young woman who becomes a servant girl in a wealthy household. She is hardworking, kind, and resilient. Despite her difficult circumstances, she maintains her dignity and sense of self-worth.
- The Countess: The Countess is the wealthy woman who hires Isabel as a servant. She is a proud, arrogant, and demanding noblewoman. She treats Isabel with disdain and contempt.
- Diego: Diego is the gardener's son who falls in love with Isabel. He is kind, gentle, and respectful. He is the one person who treats Isabel with kindness and compassion.
- The Gardener: The Gardener is Diego's father. He is a hard-working and wise man. He advises Isabel and helps her to navigate the difficult world of the wealthy household.