|This article is about a/an actress in Mirai Sentai Timeranger.|
As a child, she also had a part in the Metal Heroes series Jikuu Senshi Spielban, playing the hero's sidekick, Diana, in her childhood, alongside fellow Timeranger cast member Masaru Nagai, who played the hero, w:c:metalheroes:Yousuke Jou, as a child.
On June 6, 2006, she married Yūsuke Tomoi who played Ryo Ashihara/Kamen Rider Gills in Kamen Rider Agito. In August that same year, Mika gave birth to a girl. The couple separated in June 2008 and announced their divorce in August 2008. Katsumura gained custody of their daughter.
- Hyakujuu Sentai Gaoranger vs. Super Sentai (2001) as Yuuri