Kazunari Ninomiya is a Japanese actor and singer. He released the album Marumaru to Ninomiya to and has popular songs including Yoru No Kage with Matsumoto Jun and Ohno Satoshi, Niji, and Mata Kyou To Onaji Asu Ga Kuru. Ninomiya has appeared in the film Letters from Iwo Jima, the series My Family, and the series One Day It's Wonderful Christmas Ado.