Jordan O'Neill, played by Demi Moore, is the main character in the movie "G.I. Jane". She is a tough and determined woman who is selected to be the first female candidate for the U.S. Navy's elite SEAL training program.

Jordan O'Neill is initially met with skepticism and prejudice by the men in the program who do not believe that women have what it takes to succeed in the rigorous training. However, Jordan is determined to prove them wrong and earn their respect.

Throughout the film, Jordan displays exceptional physical and mental toughness, enduring grueling physical challenges and overcoming various obstacles. She also exhibits leadership skills and loyalty to her fellow trainees.

Jordan's character is portrayed as someone who is not only fighting for her own place in the military but also for gender equality. She becomes a symbol for women's rights and a voice against the prejudices that exist within the military.

Overall, Jordan O'Neill is a complex character who embodies strength, resilience, and determination, while also highlighting the struggles that women face in male-dominated fields.