Louise is a member of the Yeagerists. Once a young girl who was in Trost with her mother when the Titans invaded, she later joins the military and participates in the Raid on Liberio as a Survey Corps recruit. She defects from the Corps to join Eren Yeager's cause.
Louise has shoulder-length dirty blonde hair which she keeps parted down the middle. When she was younger, her outfit consisted of a jacket which she wore over a dark shirt and skirt. Her current civilian clothes consist of a simple light long-sleeve shirt and a long skirt. When on duty, she can be seen wearing the standard Survey Corps uniform.
Louise believes that strength is the most important attribute one can have in the world, to the point that she almost seems to have a "might equals right" mentality. Much of this mindset stems from her experiences during the Battle of Trost District, where she claims to have learned from watching Mikasa Ackerman fight in the face of adversity to achieve victory. She believes that the ends justify the means, and has no qualms about breaking rules if she believes that disobeying others will get her what she wants. Like her fellow Yeagerists, Louise believes that Eren is the sole hope for Paradis' survival and expresses disappointment that she will not be able to personally see the "free world" he will create due to her injuries. She tells Mikasa that she has no regrets and that she was gladly able to dedicate her heart to the cause.
Appearance: Louise has shoulder-length dirty blonde hair which she keeps parted down the middle. When she was younger, her outfit consisted of a jacket which she wore over a dark shirt and skirt.
Personality: Louise believes that strength is the most important attribute one can have in the world, to the point that she almost seems to have a "might equals right" mentality. Much of this mindset stems from her experiences during the Battle of Trost District, where she claims to have learned from watching Mikasa Ackerman fight in the face of adversity to achieve victory.
Louise in the story: Louise is among the many citizens who are trapped inside the city because Dimo Reeves, a merchant and the head of the Reeves Company, was barring the gate with his cargo. Louise's mother assures her that her father will kill the Titans with cannons, but Louise spots an Abnormal Titan charging towards them. The Titan is quickly slain by Mikasa Ackerman.
Relationships: Mikasa Ackerman - After Mikasa saved a young Louise and her mother during the Battle of Trost, Mikasa left an indelible impression on the girl. After this, Louise began idolizing Mikasa, which ultimately became her primary reason for joining the Survey Corps.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.