 Toshihiko Seki voices Aaroniero's guise as Kaien Shiba while Ryūzaburō Ōtomo voices the top skull and Mayumi Yamaguchi voices the bottom skull in the Japanese version.In the English dub, Keith Silverstein voices the top skull and Wendee Lee voices the bottom skull while Dave Mallow voices Aaroniero's guise as Kaien Shiba.The are arrancars that were once Espadas yet were demoted out of either being a disgrace to the group or replaced by the artificially-created arrancars Aizen created with the Hōgyoku.