Millais Alloy is a supporting character in the anime Mobile Suit Gundam AGE who serves in the Earth Federation Forces. She is first stationed at the Arinston Base on the space colony Nora, where she works as an assistant to commander Hendrik Bruzar. Early on, she takes notice of the young Flit Asuno and becomes highly impressed by his exceptional technical genius, holding him in high regard. At the outbreak of the conflict with the Unknown Enemy, she participates in the colony’s defense by coordinating mobile suit teams to intercept the attackers.

As events unfold, Millais is assigned to the Earth Federation battleship Diva. In the first part of the story, set in the year 115 of the Advanced Generation calendar, she holds the rank of Lieutenant Junior Grade and serves as one of the ship’s operators. Over time, she proves her competence and leadership, rising to the rank of Lieutenant Commander. By the second part of the series, set in the year 140 A.G., she has assumed command of the Diva as its captain, now a seasoned EFF commander. Her role evolves from a behind-the-scenes operator to a decisive leader who directs the vessel’s operations in battle.

Millais is depicted as a capable officer who grows into her responsibilities, combining technical awareness with steady command. She maintains a professional demeanor and is dedicated to her duties, supporting the Asuno family’s legacy across generations. Her appearance is marked by short brown hair and green eyes. While her personal motivations are not deeply explored, her actions demonstrate a commitment to the Earth Federation’s cause and a loyalty to those she serves alongside.