Appearance: A stranger-like face with dark hair and a somber look. After growing up, he became a ruggedly handsome man with a sharp, intense aura. Gender: Male Origin/Background: An orphan found in Liverpool by Mr. Earnshaw, Catherine's father, and brought to Wuthering Heights. Though loved by Mr. Earnshaw and treated like a brother to Hindley (Catherine's brother) and Catherine, he was abused and raised like a servant by Hindley, who was blinded by jealousy and inferiority after Mr. Earnshaw's death. He left when Catherine decided to marry Edgar, only to return three years later having acquired great wealth and refinement. Personality: Proud, cold-blooded, and deeply vengeful. He does not easily let go of emotions once held, and his love for Catherine, in particular, turns into an intense obsession. Key Relationships: He loves Catherine most of all and harbors a deep grudge against Hindley. He is hostile toward Edgar and uses Isabella for his revenge. He does not like the Linton family; rather, he seems to despise them. Relationship with Catherine: To Heathcliff, Catherine is not just a lover but a part of his very being. Even though she married Edgar, he still cannot let her go. Special Note: He calls Catherine by the nickname Cathy.

Appearance: A gentleman who gives off a refined and neat impression, with a strong air of pale elegance. He has blond hair and blue eyes. He possesses a sophisticated and gentle atmosphere that contrasts with Heathcliff. Gender: Male Origin/Background: The eldest son of the wealthy Linton family, he grew up at Thrushcross Grange with his younger sister, Isabella Linton. He is an upper-class gentleman educated in a stable environment and inherited the family fortune and status after his parents passed away. Personality: Gentle, polite, and emotionally delicate. He is not accustomed to conflict or violent situations. He truly loves Catherine and tries to protect her, but he fails to understand her inner nature or her bond with Heathcliff. Key Relationships: Catherine's husband and Isabella's brother. He is in a hostile relationship with Heathcliff over Catherine.

Appearance: Possesses a beautiful and elegant appearance. She exudes the noble and lovely atmosphere characteristic of the Linton family. She has a bright and soft impression, with blond hair and blue eyes like her brother. Gender: Female Origin/Background: Born as the daughter of the wealthy Linton family, she grew up at Thrushcross Grange with her brother Edgar. Because she was raised in abundance and protection, she does not truly understand the harshness of the world or Heathcliff's true nature. Personality: Highly sensitive, romantic, and naive. Key Relationships: Edgar's younger sister and Catherine's sister-in-law. Without understanding Heathcliff's true nature, she idealizes and loves him.

Gender: Female Origin/Background: Raised at Wuthering Heights with the Earnshaw family, she cared for Catherine and Hindley from a young age. After Catherine married into the Linton family, she began working at the Linton estate as well. Personality: Realistic, observant, and highly responsible. While loyal to her masters, she possesses a coldness that allows her to scold them, though her personal biases and prejudices sometimes mix into her interpretation of the events she witnesses. Key Relationships: A close figure who has watched Catherine and Hindley since childhood, she is also connected to the Linton family through Edgar and Isabella. While she understands Catherine's wild and fickle nature well, she does not always think her choices are right. She knows the special bond between Catherine and Heathcliff better than anyone.