Admiral Majin is a high-ranked executive of Neo-Shocker and the secondary antagonist of Kamen Rider (Skyrider).
He was portrayed by Yōsuke Naka.
Admiral Majin was summoned to replace General Monster as the leader of Neo-Shocker's Japanese branch due to Monster's numerous failures to defeat Skyrider, executing his predecessor with a bomb planted in his eyepatch as punishment for his failures.
However, Majin eventually began to fall out of favor with Neo-Shocker's Great Leader after he was unsuccessful in defeating Skyrider as well. After his attempt to destroy Skyrider by posing as his father failed, Majin was destroyed by Kamen Rider Stronger, leaving only his cybernetic brain, which was then crushed by the Great Leader.