Chloe O'Brian



Chloe O'Brian was a senior intelligence analyst with theLos Angeles Counter Terrorist Unit. She also served as Internet Protocol Manager at that unit, and later assumed a major role at the agency's reopened New York office. As one of Jack Bauer's closest friends and confidantes, she played a vital role in averting several terrorist attacks on the city of Los Angeles and the United States of America.

During Day 8, while investigating threats against a plannedpeace accord between the U.S. and the Islamic Republic of Kamistan, O'Brian was named acting Special Agent in Charge of CTU New York and tasked with capturing Jack Bauer before he could expose the Russian government's part in the attacks. After preventing Jack from assassinating the Russian president, Chloe helped him expose the conspiracy, then was forced to say goodbye before Jack went into hiding.

Following this, Chloe was arrested for helping Jack escape and became a member of Open Cell after Morris and Prescott were killed in a car accident that she believed was an assassination attempt on her. During Day 9, Chloe aided Jack in tracking the Al-Harazi's and stopping their plans to kill thousands of people in a revenge plot, but left to rejoin Open Cell again. After escaping Cheng Zhi and wanting to redeem herself for her mistakes, Chloe aided Jack in stopping war between the United States and China and he traded himself to save her from the Russians.