Ana Lucia Cortez is a character in the television series "Lost". She is played by actress Michelle Rodriguez and was introduced in the show's second season. Ana Lucia is a former police officer from Los Angeles who was one of the survivors of the crash of Oceanic Flight 815.

Ana Lucia is portrayed as a tough and resourceful character who initially clashes with some of the other survivors. She is haunted by her past experiences as a police officer, including a shooting that resulted in the death of an innocent person, and she is often reluctant to trust others or form close relationships.

Throughout the course of the show, Ana Lucia becomes a central character in the survivors' efforts to escape the island and uncover its many secrets. She also becomes a close ally of Jack, the leader of the survivors, and eventually develops a romantic relationship with another survivor named Sawyer.

Ana Lucia's time on the show is cut short, however, when she is tragically killed by another survivor named Michael, who is working with "The Others". Her death is a significant moment in the show, and it has lasting consequences for the other characters as they struggle to come to terms with their loss and continue to survive on the island.

Overall, Ana Lucia is a complex and compelling character who adds depth and richness to the world of "Lost". Her tragic end serves as a reminder of the show's high stakes and its willingness to take risks with its characters and storylines.