Hange Zoë was the 14th commander of the Survey Corps, named so by Erwin Smith before his death. Hange was formerly a squad leader in charge of the Fourth Squad, having the duties of innovative inventing and conducting research on Titans, including Eren Yeager. After being promoted to commander, Hange was also in charge of expedition planning, management of the regiment, recruiting, and all the other responsibilities previously handled by Erwin. Upon their death, they were succeeded by Armin Arlert.
Hange had wide, light brown eyes and shoulder length dark brown hair that they often kept tied up in an unkempt high ponytail with bangs parted down the middle. When Hange was caught in an explosion caused by Bertolt Hoover transforming, their left eye was badly injured. This led them to wear a small black eye patch over it. As a constantly busy person, their hair was thrown up very quickly and was usually oily and unclean. Along with their eye patch, Hange wore square, thick-rimmed glasses that had bands strapped around their head to keep them from dislodging during combat. However, when they were out of combat they wore thin oval-shaped glasses, still keeping the bands on their head most of the time. Hange was occasionally shown pulling their glasses up onto their forehead from time to time, often to indicate seriousness or anger. Hange was often seen wearing the normal Survey Corps uniform with a white button-up shirt underneath. When on missions or business, they wore the traditional green Survey Corps cloak and in addition to this uniform, Hange wore a bolo-tie at all times as the other military commanders do. When out of uniform, Hange usually wore a white button-up shirt with black pants, and occasionally sporting a black coat. If Hange was in a hurry, they would only wear their Survey Corps jacket; even if it was over their sleepwear.
To most people, Hange appeared to be an energetic, freethinking researcher with a very unique way of conducting themselves and their work through their rather observant and objective character. Hange explains that when they first joined the Survey Corps, their heart was filled with hatred; untill they kicked the head of a 3 meter Titan and were shocked at how abnormally light it was. This drove Hange to forget most of the resentment and insecurity they held onto, and take on a new approach to Titan research. Hange also showed great compassion for the Titan test subjects, even crying when they were forced to put Bean in severe pain for an experiment, and having a complete meltdown when the Titans were killed.
Appearance: Hange had wide, light brown eyes and shoulder length dark brown hair that they often kept tied up in an unkempt high ponytail with bangs parted down the middle. When Hange was caught in an explosion caused by Bertolt Hoover transforming, their left eye was badly injured.
Personality: To most people, Hange appeared to be an energetic, freethinking researcher with a very unique way of conducting themselves and their work through their rather observant and objective character. Hange explains that when they first joined the Survey Corps, their heart was filled with hatred; untill they kicked the head of a 3 meter Titan and were shocked at how abnormally light it was.
Hange Zoë in the story: During an expedition outside of Wall Rose, Hange and Levi find the corpse of a fallen Survey Corps member. Upon looking at the soldier's armband, Hange states that it is from the 34th expedition, belonging to a woman named Ilse Langnar who had died a year prior. Hange is present among the Survey Corps as they leave Trost District on another expedition to study the world outside the Walls and lay groundwork for their eventual return to Shiganshina District to retake Wall Maria.
How Hange Zoë echoes later: After Eren's defeat and death, Hange and the fallen Survey Corps are shown saluting to Levi in his vision one final time to thank him for his long accomplishments over the years before vanishing.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.