Niall Poe is a supporting character in the anime Mars Daybreak. He is a male with dark brown hair and green eyes, and his exact age is not specified. He serves as a member of the pirate group known as the Nereids, operating from their ship, the Nirvana. Niall is a highly talented engineer responsible for the maintenance and upgrades of the ship's systems. He is also a capable fighter, proficient in hand-to-hand combat and skilled with firearms, often providing cover for his comrades during battles. His background includes service as a soldier under Nelle Poe during the Pan-Galactic War, a conflict fought for Martian independence. Niall was involved in a massive battle from which he was one of the very few survivors, an experience that shaped his calm and composed demeanor. In terms of personality, he is quiet, reserved, and always willing to help his crewmates. Despite his low-key nature, he is forward-thinking and quick to find solutions to problems, making him a valuable asset to the Nereids. He is respected by his peers for his technical expertise and steady presence. His primary motivation appears to be supporting the crew and ensuring the success of their operations, though deeper personal goals are not heavily emphasized. His key relationships are with the other members of the Nereids, particularly those he works closely with on the Nirvana. While his role is not the central focus of the story, Niall Poe provides essential behind-the-scenes support that enables the main characters to carry out their adventures. Any development he undergoes is subtle, tied to his reliability and growing bond with the crew.