Vizards

The Vizard are the antithesis to the Arrancar as Shinigami who have obtained Hollow powers.

Having begun as Shinigami, the Vizard appear entirely Human, and barring those times where they are using their powers are indistinguishable from ordinary Shinigami. To gain access to their Hollow powers, a Vizard dons a Hollow mask. This allows them to augment their Shinigami abilities with Hollow powers, as well as giving them access to some of the more generic Hollow abilities. Their spiritual pressure likewise changes into a mix of Hollow and Shinigami. This process of donning one's Hollow mask is referred to as Hollowfication.

The Vizard have been shown to be former Captain and Lieutenant Shinigami. They are considered criminals by the Soul Society for committing the ultimate taboo of acquiring Hollow powers; their status as former leaders of Soul Society also marks them as traitors.

During their introduction they are seen as reclusive and thought to be only having loyalty to themselves and it is unknown what role they will take in the upcoming battle but they are still considered to be valuable allies in the battle against Sōsuke Aizen's army of Arrancar, as Kisuke Urahara mentioned. The Vizard have not shown any sort of hierarchy, seeming to prefer a loose-knit organization.

Their intentions are finally revealed when they arrive at the Battle of Karakura Town. Even after the events that made them outlaws to the Soul Society 100 years ago, the Vizard bare no ill will toward the Gotei 13, though they prefer not to consider themselves the allies of the former organization they belonged to either. They expressively consider themselves enemies of Aizen, and by extension, the Espada, and confirmed that they are allies of Ichigo Kurosaki, and by extension, even if slightly, the Gotei 13.