So all I have to offer you for castmates are the most minor of minor characters: Asano Keigo, who is absent from the series for such long spans of time that Kubo sometimes forgets how to draw him, and Luppi Antenor, who lived for about three episodes.
However, there are all kinds of pan-fandom players who would love to play with more Bleach boys, and most of these requests came from them.
Wanted: Kurosaki Ichigo, Ishida Uryuu, Kon, Aizen Sousuke, Ichimaru Gin, Kira Izuru, Urahara Kisuke, Charlotte Chuhlhourne, any other Arrancar/Espada, Zaraki Kenpachi, Abarai Renji, Kuchiki Byakuya
And sometimes we sit around thinking of fun names for genderswapped versions of characters we would like to see: Boifon (somewhat ruined by the current official spelling of Sui-Feng), Mansumoto, Orihim, Yoruich-he.
Bleach
However, there are all kinds of pan-fandom players who would love to play with more Bleach boys, and most of these requests came from them.
Wanted: Kurosaki Ichigo, Ishida Uryuu, Kon, Aizen Sousuke, Ichimaru Gin, Kira Izuru, Urahara Kisuke, Charlotte Chuhlhourne, any other Arrancar/Espada, Zaraki Kenpachi, Abarai Renji, Kuchiki Byakuya
And sometimes we sit around thinking of fun names for genderswapped versions of characters we would like to see: Boifon (somewhat ruined by the current official spelling of Sui-Feng), Mansumoto, Orihim, Yoruich-he.