King Dark is the figurehead of the Government of Darkness, a giant robot who commands the agents of GOD. He is the main antagonist of Kamen Rider X.


Kamen Rider X

King Dark revealed himself after Revived Apollo Geist's destruction, mocking Kamen Rider X.

He was brought down in the final episode and revealed to be a robot controlled by Dr. Curse, who activated King Dark's self destruct sequence in a final attempt to kill Kamen Rider X.

Kamen Rider Decade: All Riders vs. Dai-Shocker

King Dark reappears as a member of Dai-Shocker. He emerged after the defeat of Shadow Moon to menace the Kamen Riders. However Diend arrived with Kamen Rider J and used the Decadriver Final FormRide card to turn Decade into the Jumbo Decadriver which in turn, transforms J into Decade Complete Form Jumbo Formation. Using the other Riders as giant Kamen Ride Cards, J destroys King Dark with a variation of the Dimension Kick,.

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 Shocker Greeed. Thus, members of the various groups that would had manifested in the normal timeline after Shocker's destruction instead joined Shocker. Alongside Apollo Geist, King Dark appeared on Shocker's leadership council to represent the Government of Darkness. He was later destroyed in the final battle when the Great Leader of Shocker assumed his Great Rock Leader form.

           Kamen Rider X Villains

Government of Darkness
King Dark | Dr. Noroi | Apollo Geist | G.O.D. Warfare Agents
Shinwakaijin: Neptune | Pannic | Hercules | Medusa | Cyclops | Minotaur | Icarus | Atlas | Mach Achilles | Prometheus | Hydra | Chimera | Ulysses | Chronos | Cerberus | Alseides | Cadeus
Akuninkaijin: Ogle-Dagger | Salamander-Gong | Ghengis Khan-Condor | Toad-Goemon | Scorpion-Geronimo | Horned Beetle-Lupin | Franken Bat | Starfish Hitler | Spider-Napoleon | Chameleon-Phantom | Leech Dracula | Lizard-Viking | Ant Capone | Centipede Youkihi | Tiger Nero | Scorpion-Geronimo Jr.

           Kamen Rider Decade Villains

Leaders: Great Leader of Dai-Shocker | Shadow Moon
Commanders: Apollo Geist | Llumu Qhimil | Schwarian | Sayo Kadoya/High Priestess Bishium | Ambassador Hell | General Jark | King Dark
Footsoldiers: Shocker Combatmen | Destron Combatmen

Super Shocker
Narutaki/Colonel Zol | Dr. Shinigami | Bee Woman | Neo Organism