Vizard
"Vizard" redirects here. For the family name, see Vizard (surname).The Vizards (仮面の軍勢（ヴァイザード）, Vaizādo?, lit. "Masked Army"; "Visored" in Japanese media and first English release) are Soul Reapers who have obtained hollow powers via a process called "Hollowification" (虚化, horō-ka?). While Ichigo's Hollowification naturally occurred, the Visards were forced into it ages ago by Sōsuke Aizen as part of an experiment prior to them forced to flee the Soul Society. To gain access to their hollow powers, a Vizard dons a hollow mask that augments their Soul Reaper abilities with access to some of the generic hollow abilities. The Vizards have not shown any sort of hierarchy, seeming to prefer a loose-knit organization. After Aizen's defeat, many of the Visards are allowed to return to the Soul Society.
Read more about this topic: Bountos, Non-Soul Reapers