In the West, Kazunari Ninomiya is best known for the Clint Eastwood film Letters from Iwo Jima. In Japan, he's better known as a member of the boy band Arashi.
Arashi continue to appear in Nintendo commercials, flogging the lastest games and hardware from the Kyoto-based company. This Super Mario 3D Land ad is no exception.
スーパーマリオ 3Dランド TVCM 二宮マリオ篇 [3DS] [YouTube]