Moritz Hellmesberger

Moritz Hellmesberger (モーリッツ・ヘルメスベルガー), known to his fellow rebels as August (アウグスト) was the leader of the Dissidence Movement in the Attack on Titan: Before the Fall manga.

Appearance
Moritz had a long face with a square forehead. His long black hair was parted in the middle, exposing his ears. August wore oval-shaped glasses and a large trench coat.

Story
Moritz viewed the rich citizens within the royal government with contempt and saw that the workers, especially those within the Industrial City, were the true backbone of civilization. Thus, he began to hatch a plan to overthrow them and usher in an era of freedom for citizens and equally spreading wealth to everyone. Moritz also believed that one of the master craftsman in particular, Xenophon Harkimo, would be sympathetic to their cause and resolved to have him join them, either willingly or by force. He was able to slowly but surely gather a devoted group of followers and was even able to stockpile numerous weapons for his planned uprising. To hide their identities from the Military Police, each of the heads of the rebellion used code names, with Moritz going by the name "August".

Dissidence Movement arc
August set up a final meeting before his planned uprising within the Industrial City. One of the members of his rebellion, Matteus, brought to them Xavi Inocencio of the Military Police. Hearing Xavi's story, August welcomes him into the group and they plan to start the rebellion in two days time. Unbeknownst to August (or any other members), however, both Xavi and Matteus were spies sent by the Military Police to weed out the rebels.

The night of the rebellion, August targets the Military Police members stationed outside the city and has some of his rebels kill them. After subduing the rest, he orders his lieutenants to split up and seize control of different parts of the city. As they split off, August rallies the majority of the rebels and they pledge their support to his cause. Later, he arrives at Xenophon's workshop and kills the five men outside (unknowingly sent by Xavi). He converses with Mai and hears that the workers were taken away. He spots the girl Mai had taken aside and invites her to come with them to speak with Xenophon. August expresses his wish that Xenophon joins his cause; Xenophon shares his past when the Dissidence Movement threatened and injured him many years ago. August assures him that his group has changed and again asks the foreman to join; eventually, Xenophon agrees to, but demands that in return, August release the workers and Sharle.

Trivia

 * It is noted by Xavi Inocencio that the leading members of the Dissidence Movement have code names relating to months of the year, with Moritz's code name being the month of August.