Miss Takamizawa is a character introduced exclusively in the 2004 anime adaptation of Tetsujin 28. She works as a scientist for the Ministry of Defense and is involved in the development and oversight of military technology, including the giant robot Tetsujin 28. Her design is adapted from the appearance of Chief Otsuka's wife in the original manga, though her role and personality are unique to the 2004 series.

She is a capable, professional, and independent woman who takes her responsibilities seriously. She often assists Professor Shikishima and Chief Otsuka, and she interacts regularly with the young protagonist Shotaro Kaneda and the detective Kenji Murasame, who sometimes affectionately calls her "Otaka-chan." Her primary motivation is to ensure that the powerful wartime technology is handled safely and used for the protection of post-war Japan rather than for destructive purposes. She demonstrates strong scientific knowledge and administrative authority, serving as a liaison between government institutions and the protagonists. Throughout the series, she shows a growing trust in Shotaro's judgment and provides steady, rational support to the team. Her character remains steady and reliable, without undergoing major personal transformation, but she plays a key supporting role in the story's exploration of the ethical and practical challenges posed by the legacy of the Tetsujin project.