14th Commander of the Survey Corps and a former squad leader in charge of the 4th squad.
Hanji is very passionate and driven in pursuit of new knowledge. She can be seen as very hyperactive, often diving into projects without thought for personal safety (and frightening many of her subordinates in the process), instead preoccupied with observing and documenting their subjects. Some misinterpret these acts of hers as eccentric and having more than a few screws loose in her head. She also enjoys discussing this research, but as the lectures can be very long and detail-oriented, not many fellow soldiers find them interesting.
Hange is often excited by Titans and is always eager to experiment with them, coming off as extremely emotional regarding Titans.