**Kang Hye-jeong** (강혜정), born on January 4, 1982, is a South Korean actress widely recognized for her versatility and intense performances.

She gained international recognition for her role as Mi-do in Park Chan-wook's neo-noir masterpiece, **_Oldboy_** (2003), a performance that earned her numerous awards and established her as one of the most promising actresses of her generation.

She then solidified her fame with successful films such as **_Welcome to Dongmakgol_** (2005), where she delivered a poignant performance in a historical-fantasy setting, and a significant cameo in **_Sympathy for Lady Vengeance_** (2005), also directed by Park Chan-wook. Other notable films include **_Herb_** (2007) and **_Kiss Me, Kill Me_** (2009).

Kang Hye-jeong is known for her ability to embody complex characters, often eccentric or vulnerable, yet possessing surprising inner resilience. Her acting style is characterized by a naturalness and emotional depth that make her a memorable figure in Korean cinema.