Some important people are Satoru Iwata, and Masahiro Sakurai.
Satoru Iwata was the long time head of Nintendo before his passing in 2015. He was a long time employee at Nintendo, primarily assisting in the Kirby games and assisting with the Super Smash Bros. games. Satoru Iwata become the head of Nintendo in 2002. In 2011 Satoru Iwata started the Nintendo direct as a way to bring information to fans. His passing brought a lot of sadness to fans.