Yellow is the protagonist of the Pokémon Adventures manga in later issues (SHE IS A CHARACTER THAT COMES IN LATER IF YOU DO AUDITION FOR THIS CHARACTER). She is a girl disguised as a young boy trying to rescue Red from the clutches of the Elite Four. Since she does not have a canonical voice, the best voice we could come up with is something similar to how Kara Edwards sounded in Dangonronpa for Chihiro Fujisaki: Yellow's Voice Reference