Characters

A 24-year-old unemployed man living in a semi-basement with his family. Initially crafty and opportunistic, he poses as an English tutor named Kevin to infiltrate the wealthy Park family. His obsession with a viewing stone and romantic involvement with Da-Hae reveal his desire to transcend his social class, though he ultimately suffers brain damage and loses his grip on reality.

The 41-year-old wife of Dong-Ik and mother to Da-Hae and Da-Song. Naive and trusting, she becomes completely dependent on the Kim family's services while remaining oblivious to their deception. Her childlike simplicity masks the casual cruelty of her privileged position.

The 49-year-old patriarch of the Kim family, a failed entrepreneur turned chauffeur for the Parks. Initially passive and optimistic, he becomes increasingly bitter about class inequality and his family's treatment. His rage culminates in murdering Dong-Ik with an axe before hiding in the mansion's secret bunker for years.

The 49-year-old mother of the Kim family and former shot-putter turned housekeeper. Tough and no-nonsense, she replaces Mun-Kwang as the Parks' domestic worker through the family's scheme. She becomes fiercely protective of her family during the violent climax, ultimately killing Kun-Sae with a barbecue skewer.

Ki-Woo's 23-year-old sister who excels at forgery and deception. She poses as Jessica, an art therapist from Illinois State, to tutor the Parks' troubled son Da-Song. Cynical and pragmatic, she becomes the most skilled manipulator in the family but ultimately dies from blood loss after being stabbed during the climactic garden party.

The 45-year-old housekeeper at the Park mansion who has been secretly caring for her fugitive husband Kun-Sae in the bunker for four years. Initially competent and loyal, she becomes desperate and vindictive when fired, ultimately dying from a head injury after trying to expose the Kim family.

The 45-year-old CEO and patriarch of the Park family. Successful and seemingly reasonable, he unconsciously reveals his class prejudices through comments about Ki-Tek's smell and crossing lines. His casual cruelty and condescension ultimately provoke Ki-Tek's murderous rage.

The 16-year-old daughter of the Park family and Ki-Woo's tutoring student. Initially skeptical of her brother's artistic pretensions, she develops romantic feelings for Ki-Woo and becomes emotionally vulnerable. Her genuine affection contrasts with the deception surrounding their relationship.

A 24-year-old college student and Ki-Woo's friend who inadvertently sets the plot in motion. Handsome and confident with a privileged background, he gifts the family a viewing stone and asks Ki-Woo to tutor his crush Da-Hae while he studies abroad.

Mun-Kwang's 45-year-old husband who has lived in the mansion's secret bunker for over four years, hiding from loan sharks after his failed cake business. Malnourished and psychologically deteriorated, he maintains an obsessive loyalty to the Parks while becoming increasingly unhinged, ultimately committing murder during his final desperate emergence.

The 10-year-old son of the Park family, obsessed with Native American culture and camping. Traumatized by seeing the 'ghost' (Kun-Sae) as a child, he suffers from seizures and behavioral issues. His artistic talents and strange behavior make him the family's main concern.

A quirky small business owner who employs the Kim family to fold pizza boxes. She represents the precarious nature of low-wage work, cutting their pay due to Ki-Tek's poor folding quality while struggling with her own business challenges.

The Parks' young driver who becomes attracted to Ki-Jung during a car ride. He is framed and fired when Ki-Jung plants her underwear in the car, becoming an unwitting casualty of the Kim family's infiltration scheme.

The disembodied voice of Mrs. Park speaking through the mansion's intercom system during Ki-Woo's first visit. Represents the technological barriers and social distance between the wealthy and working classes.

A public urinator who repeatedly defiles the Kim family's semi-basement window. He represents the indignities of poverty and urban decay that the family must endure in their marginal living situation.

An off-screen voice that dramatically intervenes when a drunk man attempts to urinate on the Kim family's window. This voice belongs to Min-Hyuk, demonstrating his confidence and social authority.

A news reporter covering the aftermath of the Park mansion murders. Represents the media's attempt to understand and categorize the seemingly senseless violence that erupted from class conflict.

Another news reporter providing updates on the ongoing investigation into Ki-Tek's disappearance and the mansion murders. Emphasizes the mystery surrounding the crimes and the continued search for the missing perpetrator.

One of the Park family's three dogs who discovers Ki-Woo hiding under Da-Hae's bed. The dog's innocent discovery creates a moment of tension and potential exposure for the infiltrating family.