Nobuhiko Akizuki

 Century King Shadow Moon is a fictional character who serves as the primary antagonist in the Japanese tokusatsu drama Kamen Rider BLACK. In all of Shadow Moon's appearances, he is voiced by Masaki Terasoma, including the 3D short film Kamen Rider World. In Kamen Rider SD, he is voiced by Kaneto Shiozawa.. Nobuhiko is played by Takahito Horiuchi.

Shadow Moon is the alter ego of Nobuhiko Akizuki, who had been abducted by Gorgom to become one of their new kings. Shadow Moon is both the stepbrother and rival to Kotaro Minami/Kamen Rider BLACK (RX), both having been abducted by Gorgom in their childhood, with Kotaro escaping. Both utilize the Kingstone to transform and armed with the Satan Saber, a sword crafted specially used by the Century Kings. He was weakened by Kamen Rider BLACK using the Satan Saber to slash the Kingstone and left him inside the Gorgom Headquarters when it explodes. 5 years later, he mysteriously resurface to seek revenge against Kotaro Minami. He now uses the twin Shadow Sabers similar to the Satan Saber gained from the Crisis Empire. He was finally defeated by RX when he thrust the Revolcane through his Kingstone. He turned good shortly before he died and finally reverted to Nobuhiko. However, Shadow Moon would return once again as a villain in the somewhat non-canon 8-minute movie, Kamen Rider World. This time, he was giant and he was defeated by a giant Kamen Rider J.

Kamen Rider Media
Shadow Moon is one of the few villains in the Kamen Rider Series to be given an action figure, Sochaku Henshin figure, and a S.I.C. figure. He is also one of the few Kamen Rider villains to have a Rider Kick, without being a Kamen Rider himself. Shadow Moon was also featured as the first Secret Rare card in the Rangers Strike Masked Rider Expansion Vol. 1 and the only character in the Dark Alliance group in the Masked Rider Expansion Vol. 1. An alternate version of Shadow Moon will appear in the film Kamen Rider Decade: All Riders vs. Great Shocker named Nobuhiko Tsukikage and portrayed by Ryuichi Oura.