BOARD

Short for the "Board Of Archaeological Research Department", BOARD uncovered the sealed Undead Cards & developed the first two Rider Systems.

George Crawford

 * Main article: George Crawford

George Crawford is the President of BOARD. A 48-year-old professor who created the Rider Systems 01 & 02 (Diamond Warrior & Spade Warrior), as well as the Club Warrior System (03), while he was under control of Hayden. During his travels, he befriends Phoenix Rye, whom he entrusted the Rouze Absorbers to despite knowing he was an Undead. He is also aware of the side effect of Agema's King Form as well as Kingston's plans of the fake Battle Fight. Four years after Agema became the Navy Joker, he & Newman tried to cover 52 cards, when Albino Joker appeared & unsealed the Undead; then he attacked & nealry killed Crawford. He's currently in the hospital with severe injuries.

Zadock Sidney

 * Main article: Zadock Sidney

Zadock Sidney is Rosalind's father, the one responsible for breaking the Undead's seal in a fit of madness, dying in the process. He created the Trial-series Undead Trial B in his image to protect Rosalind, possessing all his creator's memories. However, Trial B was reprogrammed by Kingston to continue to monitor the fixed Undead battle & remove potential threats before he sacrifices himself to protect Rosalind from Trial G.

Hadrian Kingston

 * Main article: Hadrian Kingston

Hadrian Kingston is the chairman of BOARD who intentionally set up the series of events in the fake Battle Fight & the creation of the Category Ace Kerberos, so that he could have his warped dream of a new world order with himself as its ruler. In the end, he was seemingly murdered by the Giraffa Undead after he was defeated by the Riders with his dreams shattered.