User blog comment:Lemursrule/BLEACH 231 English Dubbed Review/@comment-999343-20111122005050/@comment-1351982-20111122010126

The best answer I can give is that most of the actors listed also do walla (background voices) and uncredited characters. Plus many of the cast members can not be properly credited (for legal reasons) so having so and so as______ and having another characters not listed would be odd. For an official answer, I can't really give you one.