Levi Ackerman

As a result of his early childhood years, Levi is described by those who know him personally as a "clean freak", as he prefers himself and his surroundings to be spotlessly clean. He is reluctant to soil himself or his equipment, and has been known to clean his bloodstained blades while still on the battlefield. However, he won't hesitate to touch dirt if he deems it necessary.

Despite his concern for cleanliness, Levi is not very approachable. He rarely shows emotions, giving a cold impression to others. His way of speaking tends to be very forceful, even insulting, and his comments are often rude or inappropriate. He is not above provoking or belittling those who oppose or irritate him. His sense of humor tends towards the vulgar, insulting and dark. All of this makes it disturbing to a large number of people.

In his pre-Survey Corps criminal life, when he lived in the Undercity, Levi refused to take orders from anyone (as Petra Ral tells Eren), although he placed great trust in his comrades, something he would later do with his subordinates. . . However, after joining the Survey Corps, he came to greatly respect Commander Erwin Smith, whose orders he willingly follows because he trusts Erwin's vision for the Corps.

Levi's obedience is strictly limited to people who respects, and has no problem showing open disdain for the authority of anyone outside of this circle.

Though he rarely shows it, Levi has a strong sense of morality and empathy. One of its most defining characteristics is the great value it places on the preservation of human life; this is especially shown when it was revealed that all Titans could have once been human. The idea that he had unknowingly been killing humans all this time disturbs him greatly.

Levi himself has stated that he hates unnecessary casualties, telling his subordinates to use their judgment to avoid blunders that could cost them life. Due to his dangerous profession and his personal values, he cares a lot about the welfare of his subordinates.

Levi operates quite independently. Many of his Titan kills are solo, accomplished with little direct cooperation from other soldiers (since he usually assigns them to hunt down other Titans in the vicinity). Although he is admired by many, and does not hesitate to give orders when necessary.

Occasionally, Levi has been known to lose his cool demeanor and use threats or violence to get others to hear him, even if they are members of the Corps. While Levi shows loyalty and empathy for his comrades, he shows no mercy towards the Titans, killing them indiscriminately with obvious indifference.