There are quite a handful of extra characters in the series. However, I will only be casting a few people who can do a wide variety of voices, from child to senior. If I don't like any of the auditions, I may just have my friends voice them. If you happen to have a good voice for one of the extras that I have in mind, you have a higher chance of being cast, even if you don't present diversity. (Your best bet is to present diversity)