Mu

Mu (無) is an evil organization made up of past adversaries of the Kamen Riders. They were responsible for reconstructing and transforming Brain into a Kamen Rider.

Leader

 * Leader of Mu

Executive

 * Oogumo Great Leader

Monsters

 * Cancer Zodiarts
 * Gremlin
 * Demushu
 * Gamma Superior
 * Guren Graphite

Scientist

 * Crystal Peppler (defected)

Appearances

 * Icon-drive.png Kamen Rider Drive Saga: Kamen Rider Brain