Marco Bott ranks seventh among graduates of the 104th Cadet Corps. He stands 178 cm tall with a muscular build, short dark hair, freckles, and light brown eyes. His standard uniform matches fellow cadets; his casual wear consists of a light green long-sleeved shirt over a white collared shirt with brown pants. Demonstrating strong leadership and idealism, Marco consistently prioritizes the collective good over personal interests and works to maintain order during conflicts. Unlike peers seeking safety, his desire to join the Military Police stems from genuine loyalty to the king. He recognizes Jean Kirschtein's leadership potential, encouraging Jean to embrace this role despite Jean's reluctance. Marco's capabilities are reflected in high teamwork (10/10), combat (8/10), wits (8/10), and initiative (7/10). Throughout training, Marco mediates disputes and supports peers. When Eren Jaeger struggles with omni-directional mobility gear, Marco advises seeking help from Reiner Braun and Bertholdt Hoover. He devises realistic battle strategies, such as acting as a Titan decoy to enable others to strike. Often seen with Jean, Marco praises Jean's ability to assess situations and make decisive calls. Commanding the 19th Cadet Squad during the Trost District Titan invasion, Marco becomes stranded without sufficient gas to retreat. Initially resigned to death, he joins Mikasa Ackerman's charge to resupply at headquarters. Inside, he collaborates with Armin Arlert on a plan to eliminate Titans occupying the supply room. Marco directs cadets to lure and blind seven Titans with rifle fire, enabling soldiers to kill them. Later, he boosts morale among terrified cadets and physically restrains Daz from attempting suicide. During the operation to seal Wall Rose's breach, Marco aids in rescuing Jean after Jean's gear malfunctions. He then overhears Reiner and Bertholdt discussing their identities as the Titans responsible for breaching the walls. Mistaking their conversation for a joke, Marco prepares to report for duty. Reiner ambushes him, pinning him to a building. Under Reiner's orders, Annie Leonhart removes Marco's gear despite visible reluctance. The trio abandons him as he pleads for discussion, leaving him immobilized. A Titan subsequently bites him in half while Reiner, Bertholdt, and Annie watch with remorse. Jean discovers Marco's partial remains days later, noting the missing gear. Marco's body is cremated with other casualties. His death influences Jean to abandon joining the Military Police; instead, Jean enlists in the Scout Regiment to honor Marco and avoid a "disappointing end." Annie retains Marco's gear, which Armin later identifies due to unique modifications he recognized from maintaining equipment together, implying foul play. Marco's legacy persists. Annie experiences recurring nightmares about her involvement in his death. During the War for Paradis arc, Reiner confesses to ordering Annie to remove Marco's gear and reveals Marco's final words, provoking Jean into attacking Reiner and underscoring Marco's lasting impact.