Dot Pixis held the rank of supreme commander of the Garrison Regiment’s southern territory, which encompassed Trost District, and was widely acknowledged as "commander" with absolute authority over all defensive operations. A bald man with a sturdy build, Pixis possessed a distinguished mustache, light skin, and prominent wrinkles beneath his eyes. He typically wore his Garrison uniform over a white button-up shirt, accompanied by a red sash edged in gold and a purple bolo tie, consistent with the dress of other high-ranking military officials. Pixis exhibited an eccentric personality, frequently maintaining a calm and light-hearted attitude even in the midst of turmoil. He once quipped that he would not object to being devoured by a Titan if it were an exceptionally beautiful one. Despite this unconventional demeanor, he proved to be a pragmatic and capable leader who empathized with the fears of his troops, occasionally permitting those too afraid to fight to withdraw. His strategic insight was demonstrated through critical decisions, such as trusting Eren Yeager’s Titan abilities to seal the breach in Trost District and appointing Ian Dietrich to lead the elite squad guarding Eren. Pixis expressed willingness to forsake his humanity and be remembered as a butcher if it meant ensuring the survival of mankind, distinguishing himself from other leaders by being driven solely by the advancement of humanity rather than personal motives like revenge or the pursuit of truth. Pixis first met the 104th Cadet Corps during a simulated defense exercise in Trost, where he briefly supervised their training. He later intervened when Eren Yeager faced execution after the discovery of his Titan powers, stopping the proceeding after hearing Armin Arlert’s tactical justification. Pixis then orchestrated a perilous operation to use Eren’s Titan form to close the hole in Wall Rose, successfully inspiring mutinous soldiers by appealing to their duty to protect their families. After the recapture of Trost, Pixis met with Commander Erwin Smith to deliberate Eren’s future and attended his subsequent trial. When Wall Rose was believed to be breached once more, he collaborated with the Survey Corps to investigate, uncovering that the Titans inside the walls were transformed villagers from Ragako. Pixis played an essential part in Erwin Smith’s scheme to overthrow the royal government. He designed a test during Erwin’s trial, fabricating a breach of Wall Rose to observe whether the nobles would prioritize refugee lives over their own comfort. When they denied entry to the refugees, Pixis endorsed the military’s coup, which resulted in the installment of Historia Reiss as queen. Pixis continued in a leadership role, participating in strategic meetings about the reclaiming of Wall Maria and later in discussions regarding Zeke Yeager’s proposed alliance. He argued in favor of transparency, maintaining that the public should be informed of the truths uncovered in Eren’s basement to prevent repeating the errors of past oppressive regimes. During the Marleyan surprise assault on Shiganshina District, Pixis was transformed into a Pure Titan after consuming Zeke Yeager’s spinal fluid. He was ultimately killed by Armin Arlert.