**Yu Ji-tae** (born April 13, 1976) is a South Korean actor and occasional film director, known for his versatility and intense screen presence.

He gained international recognition for his intense portrayal of the antagonist Lee Woo-jin in Park Chan-wook's neo-noir thriller *Oldboy* (2003), a role that cemented his reputation. His notable films also include the melancholic *One Fine Spring Day* (2001), which highlighted his dramatic depth in a romantic role, and *Sympathy for Lady Vengeance* (2005), reaffirming his connection with Park Chan-wook.

Known for his considerable height and distinctive presence, Yu Ji-tae has often excelled in complex and psychological roles, portraying tormented or morally ambiguous characters with remarkable intensity and emotional nuance, while also demonstrating great versatility across various genres.