TV-Series
Description
Nile Dok commanded the Military Police Brigade, focusing on internal stability within the Walls above external threats. He possessed a lean build, short black hair often trimmed on the sides, and distinctive facial features: a thin mustache, goatee, and narrow eyes conveying a perpetually tired expression. His standard Military Police uniform included the red bolo tie worn by high-ranking officers.

Trained alongside Erwin Smith in the Training Corps, Nile initially intended to join the Survey Corps. He abandoned this path after meeting Marie, a woman both he and Erwin admired. Choosing family security over military idealism, he joined the Military Police, married Marie, fathered three daughters, and resided in eastern Wall Rose. This decision fostered lasting tension between his sense of duty and personal relationships, particularly with Erwin. Supplemental materials indicate they maintained a complex friendship, with Erwin occasionally sending coded messages to Nile via newspaper advertisements referencing shared history.

Nile approached leadership pragmatically, rationally weighing risks to maintain civil order. During Eren Yeager's trial, he advocated dissection and execution to prevent unrest, though relented when Levi Ackerman highlighted the Military Police's inability to contain Eren's Titan abilities. His decision-making prioritized minimizing conflict, evident when he permitted Erwin's illegal plan during the Stohess incident while focusing on civilian evacuation.

His commitment to institutional hierarchy conflicted with personal morality during the Royal Government arc. Falsely informed of Wall Rose's breach, Nile defied royal orders to seal Wall Sina against refugees, citing his family's residence in the affected territory. This insubordination aligned with Darius Zackly's orchestrated coup, though Nile expressed unease about the resulting military rule.

Later, Nile objected to trusting the Anti-Marleyan Volunteers during discussions of Zeke Yeager's proposal. He defended Queen Historia's choice to conceive with a commoner, rejecting suggestions to forcibly transfer the Beast Titan to her during pregnancy. Following Darius Zackly's assassination, Nile investigated military dissidents dubbed "Yeagerists," acknowledging their motives while maintaining institutional loyalty.

During the War for Paradis, Nile consumed wine unknowingly tainted with Zeke Yeager's spinal fluid. Moments before his Titan transformation, he discreetly aided Falco Grice's escape by feigning detention. As a 4-meter Pure Titan, he retained most human facial features and displayed heightened speed, nearly killing Kaya, Niccolo, and Artur Braus before Gabi Braun fatally shot him with an anti-Titan rifle.

Personality assessments categorized him as an ISTJ with Enneagram Type 6w7 traits, reflecting his duty-bound pragmatism, risk aversion, and reliance on established systems. Despite commanding a corrupt organization, he avoided participating in its excesses and expressed remorse over past compromises, notably abandoning Survey Corps ideals for family safety. His character arc consistently balanced institutional loyalty against ethical responsibility, culminating in a final act of concealed compassion.