Dita Ness was a member of the Survey Corps and a team leader in the 57th expedition beyond the Walls.
Ness was a man of average height and build. He had a welcoming face with a mustache and also had a beard around his jawline. He was notable for the white bandana that he wore around his head, which concealed his bald spot, but showed light brown hair along the sides and back. He was never seen without the standard Survey Corps Uniform, but he did add the green cloak during expeditions.
Ness was a serious leader who never took his job lightly. At the same time, he truly cared for the new recruits and wanted to make their first expedition as easy as possible for them. This was proved as he was the one who taught them about the Long-Distance Enemy Detection devised by Erwin Smith. Ness was not a fan of fighting Titans and always tried to stick to the idea of avoiding them outside the Walls, however, he never hesitated to fight them when it was necessary.
Appearance: Ness was a man of average height and build. He had a welcoming face with a mustache and also had a beard around his jawline.
Personality: Ness was a serious leader who never took his job lightly. At the same time, he truly cared for the new recruits and wanted to make their first expedition as easy as possible for them.
Dita Ness in the story: Before the Survey Corps's expedition, Dita Ness instructs the new recruits about Erwin Smith's long distance enemy scouting formation in a classroom. During the 57th Expedition Outside the Walls, Ness encounters an abnormal Titan in a field, and uses his vertical maneuvering equipment to sever the Titan's ankles, causing it to fall over and allowing his squad mate Luke Siss to destroy the nape of its neck. To his joy, Ness's horse returns for him, and he and Siss resume the expedition.
How Dita Ness echoes later: Later in the Battle of Shiganshina, as Erwin Smith begins to lament the dwindling hopes of his dream, Ness stands among the many fallen Survey Corps comrades in Erwin's mind, wanting to know if their deaths had meaning. In the forest, as Levi contemplates all the times he risked his life to save Eren Yeager, Ness appears among the comrades he had lost along the way. When Hange decides to oppose Eren's plan to destroy the world beyond the Walls, Ness is one of the soldiers Hange remembers when arguing that their fallen comrades would not support destroying the world.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.