King Dark

King Dark (キングダーク): A giant robot who served as the figurehead of the Government of Darkness

He reveals himself after Apollo Geist's destruction, mocking Kamen Rider X. Destroyed by a self-destroying function that Dr. Noroi started when he dying. He is permanenly giant-sized, and is usually found in the pictured position in order to command his human-sized underlings.

All Riders vs. Dai-Shocker
King Dark appears as a member of Dai-Shocker, menacing the Kamen Rider. However Diend arrived with Kamen Rider J. Using the Decadriver Final FormRide card, he turned Decade into the Jumbo Decadriver which then turns J into Decade Complete Form Jumbo Formation and he destroys King Dark with a variation of the Dimension Kick, using the other Riders as giant Kamen Ride Cards.

Let's Go Kamen Riders
Due to a change in history caused by Ankh leaving a O Medal behind in the year 1971, Shocker achieved its goal of world dominion with the Shocker Greeed and new members from the various groups that would had manifested in the normal timeline after Shocker's destruction. King Dark, Apollo Geist and the Government of Darkness were part of Shocker's alliance. They were destroyed when the Great Leader became the Great Rock Leader.

Portrayal
In Kamen Rider X, King Dark/Dr. Noroi was voiced by Fumio Wada (和田 文夫). In OOO, Den-O, All Riders: Let's Go Kamen Riders, King Dark was voiced by Shōzō Iizuka (飯塚 昭三).

Appearances

 * Kamen Rider X episode 21 - Apollo Geist's Last General Attack!!
 * Kamen Rider X episode 22 - The Terrible Great Giant! King Dark Appears!!
 * Five Riders vs. King Dark
 * Hanuman and the Five Riders (unauthorized production)
 * Kamen Rider X episode 32 - Showdown! King Dark vs. X Rider
 * Kamen Rider X episode 35 - Farewell, X-Rider
 * Kamen Rider Decade: All Riders vs. Dai-Shocker
 * OOO, Den-O, All Riders: Let's Go Kamen Riders