Kim Jin-Kyu
Mr. Kim is a middle-class music teacher who represents ambition and moral weakness. Although he initially appears responsible and devoted to his family, he quickly becomes vulnerable to temptation. His poor decision and inability to control his desires lead to the destruction of his household. He symbolizes the fragile nature of masculinity and authority within the family.
Lee Eun-shim
Myung-sook is the centarl antagonist of the film. She is manipulative, unpredictable, and emotional unstable. After entering the Kim Household, she gradually takes controll through seduction and psychological intimidation. Her character represents chaos and the disruption of social order, exposing the hidden tension within the family.
Ju Jeung-nyeo
Mrs. Kim is a devoted wife and mother who embodies traditional family values. She is hardworking and supportive, helping to build the family's middle-class life. Despite her strength, she becomes a victim of both her husband's betrayal and the housemaid's manipulation. Her suffering highlights the vulnerability of women within patriarchal society.
Um Aing-ran
Kyung-hee is a factory worker and student who admires Mr. Kim. She represents innocence and the working class. Her interaction with Mr. Kim hint at his moral decline and serve as an early warning of the events that follow.
Lee Yoo
Ae-soon is the daughter of the Kim family. Like her brother, she represents innocence and the stability of the home before it is disrupted. Her presence emphasizes what is at stake as the family begins to fall apart.
Ko Seon-ae
Seon-young is a minor supporting character who helps provide social context to the story. She contributes to the depiction of everyday life and relationships within the community.