King Dark

1="Get more women, because I need blood! Watch out for the Red Ants."

- King Dark orders his minions to catch some women for blood while warning his minions about the Kamen Riders

2="Blooooood! I need blood now!"

- King Dark angrily orders his minions to obtain blood for him

3="Everything is falling into place. Soon, I will be the master of the world!"

- King Dark when he successfully revives Kan

King Dark (キングダーク): A giant robot who served as the figurehead of the Government of Darkness, who was previously heard as the G.O.D. General Commander.

He reveals himself after Apollo Geist's destruction, mocking Kamen Rider X. He was able to fire lasers from his eyes, launch missiles from his fingers, exhale poison gas, and could use his large arms for swiping. In Five Riders vs. King Dark it is revealed he can revive kaijin. He was destroyed by a self-destruct function that Dr. Noroi activated before he died. He is permanently giant-sized, and is usually found in the pictured position in order to command his human-sized underlings. He was rather a laid-back villain always telling others to do the work for him and usually shrugs off failures.

All Riders vs. Dai-Shocker
King Dark appears as a member of Dai-Shocker, menacing the Kamen Riders. 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.

Beast Rider Squad
King Dark commands the Beast Riders to go forth and spread chaos, only for it later to be revealed after their defeat that this King Dark was just a hologram projection used by a Foundation X operative.

All Kamen Rider: Rider Generation 2
King Dark appears as a boss in the video game All Kamen Rider: Rider Generation 2.

Kamen Rider: Battride War II
King Dark appears as the main villain of Kamen Rider: Battride War II, in homage to the 40th anniversary of Kamen Rider X.

Pachinko Kamen Rider: Full Throttle
King Dark appears with a golden updated design in Pachinko Kamen Rider: Full Throttle.

Stats

 * Height: 26 meters
 * Weight: 5 tons

Portrayal
In Kamen Rider X, King Dark/Dr. Noroi was voiced by Ayao 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). In Kamen Rider Brave: ~Let's Survive! Revival of the Beast Rider Squad!~, King Dark's hologram was voiced by Nobuhiro Suzumura (鈴村 展弘).

Monsters

 * Ghengis Khan-Condor (ジンギスカンコンドル Jingisu Kan-kondoru, 22, Movie) - A Genghis Khan-themed condor monster.
 * Toad-Goemon (ガマゴエモン Gamagoemon, 22, 23 & Movie) - An Ishikawa Goemon-themed toad monster.
 * Scorpion-Geronimo (サソリジェロニモ Sasori Jeronimo, 22-24) - A Geronimo-themed scorpion monster.
 * Horned Beetle-Lupin (カブト虫ルパン Kabutomushi Rupan, 22 & 25) - An Arsène Lupin-themed horned beetle monster.
 * Franken Bat (コウモリフランケン Koumori Furanken, Movie) - A Frankenstein-themed bat monster created by G.O.D. to defeat Kamen Rider X. Destroyed by Kamen Rider 1 and Kamen Rider 2's Rider Kick and Kamen Rider X's Rider Super Five Kick.
 * Starfish-Hitler (ヒトデヒットラー Hitode Hittorā, 26) - An Adolf Hitler-themed starfish monster who has ability to summon starfish which causes electric shock to the target. His G.O.D. Warfare Agents wear a Nazi military uniform. Self-destruct himself when he try to suicide along with the blueprint after he defeated with Kamen Rider X's X Kick.
 * Spider-Napoleon (クモナポレオン Kumo Naporeon, 28) - A Napoleon Bonaparte-themed spider monster. Destroyed by X's Shinkuu Jigoku Guruma and the X Kick.
 * Chameleon-Phantom (カメレオンファントマ Kamereon Fantoma, 29) - A Phantom of the Opera-themed chameleon monster transform into Government of Darkness Rider (Ｇ．Ｏ．Ｄ．ライダー G.O.D. Raidā) . Destroyed by X's Shinkuu Jigoku Guruma and the X Kick.
 * Leech Dracula (ヒルドラキュラ Leech Dorakyura, 30) - A Count Dracula-themed leech monster. Destroyed by X's Shinkuu Jigoku Guruma and the X Kick.
 * Lizard-Viking (トカゲバイキング Tokage Baikingu, 31) - A Viking-themed lizard monster.
 * Ant Capone (アリカポネ Ari Kapone, 32) - An Al Capone-themed ant monster. Destroyed by X's Shinkuu Jigoku Guruma and the X Kick.
 * Centipede Youkihi (ムカデヨウキヒ Mukade Uoukihi, 33) - A Youkihi-themed centipede monster.
 * Tiger Nero (タイガーネロ Taigā Nero, 34) - A Nero-themed tiger monster.
 * Scorpion-Geronimo Jr. (サソリジェロニモJr Sasori Jeronimo Jr, 35) - A Porico Geronimo-themed scorpion monster. During his first meeting with Keisuke, he wondering why Scorpion-Geronimo still lives after defeated. He reveals his identity to Keisuke he is Scorpion-Geronimo son and he want to avenge his father death. Destroyed by X's Ridol Sword when kill with Dr. Noroi.

Appearances

 * Icon-x.png Kamen Rider X
 * Episode 21: Apollo Geist's Last General Attack!!
 * Episode 22: The Terrible Great Giant! King Dark Appears!!
 * Five Riders vs. King Dark
 * Hanuman and the Five Riders
 * Episode 32: Showdown! King Dark vs. X Rider
 * Episode 35: Farewell, X-Rider
 * Icon-zx.png Birth of the 10th! Kamen Riders All Together!!
 * Icon-rx.png Kamen Rider 1 Through RX: Big Gathering
 * Icon-decade.png Kamen Rider Decade: All Riders vs. Dai-Shocker
 * Icon-ooo.png OOO, Den-O, All Riders: Let's Go Kamen Riders
 * Icon-exaid.png Kamen Rider Brave: ~Let's Survive! Revival of the Beast Rider Squad!~