Dot Pixis

Commander Dot Pixis (ドット·ピクシス司令) is a high ranking military officer in charge of the cities defense. He is the highest ranking administrator of the southern region, which includes Trost District. In matters of defense, he is given full authority.

Appearance
Pixis has a bald head, gold eyes and a distinguished mustache. He also has a purple coloured medallion around his neck, just like his fellow commanders Erwin Smith and Nile Dok. As the highest ranking officer, he is only ever seen wearing his Garrison uniform.

Personality
Pixis is an eccentric man. While observing Titans breaching Wall Rose, he said he wouldn't mind being eaten by a Titan if "she happened to be a stunning beauty." He retains a calm, and light-hearted demeanor, even in the midst of chaos. Yet, Pixis is an effective leader, as seen when he quiets all the soldiers attempting to mutiny and successfully convinces them to continue fighting to retake Trost. He is an expert strategist, and is able to gauge a situation carefully, but also knows when to take risks, which leads to his decision to trust Eren to stop the breach.

Battle of Trost District arc
Pixis first appears during the Invasion of Trost, playing chess with Lord Balto. A soldier appears and informs him of the situation in Trost, which required his immediate attention. Pixis decides to head over to the scene, calmly refusing the noble's request to stay and protect his property.

After it was discovered that Eren Yeager could transform into a Titan, Eren was sentenced to death. Pixis, however, happened to be nearby when Armin Arlert gave a passionate speech in defense of his friend, vouching for the strategic and tactical benefits that he could bring to turn the tide of the battle. The officer in charge, Kitts Woerman, wasn't swayed, but as he was about to give the kill order, Dot Pixis stopped him, believing Armin's words.

After discussing the matter with Eren and Armin, he orders his officers to begin plans to recapture Trost. However, the Garrison, already extremely low on manpower and morale after the evacuation, is in no condition to fight again and many soldiers attempt to mutiny in order to spend the little time they have left with their families.

In order to give the soldiers hope, he introduces Eren as being a part of a secret government experiment to turn humans into Titans to fight them on equal footing. Unsuprisingly, Pixis is not taken seriously and soldiers turn to leave, some even fighting each other.

Finally, he gives an order to pardon all deserters. He however states that by leaving, they will put their families at risk and expose them to the same terror that has paralyzed themselves. This argument convinces the soldiers to reassemble their ranks and begin the operation.

Clash of the Titans arc
Pixis would later appear being given a report by Hannes when a member of the Survey Corps informs him and the others about Wall Rose being supposedly breached for the second time by the Titans. He later appears drinking on top of Wall Rose when Anka Rheinberger, one of his escorts, scolds him for drinking and makes it known that she does not want to take care of him, which Pixis would be fine with because he thinks she is a beauty. She gives a report that Titans have stopped appearing and only a few appeared anyway. Pixis surmises that there might be no breach in Wall Rose given the lack of Titans. Erwin Smith then appears and Pixis congratulates him on capturing the Female Titan. He hopes this will force the government to start thinking and Erwin replies that they already have, and the Military Police Brigade present with Erwin are proof of that. A Garrison member then arrives to inform him their is no breach and that three more Titan Shifters have been identified: Reiner Braun, Bertolt Hoover, and Ymir.

The Uprising arc
Pixis next appears in a meeting with Erwin Smith who proposes overthrowing the government. Pixis is sympathetic with Erwin and agrees that something must be done, but he also exclaims being an old soldier and how he will not lead his soldiers against each other. He agrees to help if Erwin's intention are noble, but also warns that he will personally deliver Erwin to execution if he is acting wrongly. He then discusses how people have put up with the King because they all share the same fate in the walls, and that any attempt to forcefully remove him from power would involve tremendous violence. Erwin believes that the government wants Eren in order to use his abilities to control humanity; Pixis believes that they might be able to hand Eren over since they all share the same fate. Erwin disagrees and Pixis wonders how they will carry out the revolution, to which Erwin replies that they will replace the King with Historia Reiss, a descendant of Lod Reiss, the true ruler of humanity. It is later revealed by Erwin that Pixis refused to help in the revolution.

Trivia

 * The name "Pixis" may refer to the constellation "Pyxis Nautica" - Latin for "The Naval Compass".
 * In 2010, Isayama posted a blog post admitting that Dot Pixis was modeled after, a general in the Imperial Japanese Army.

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Dot Pixis