While Ash is the main protagonist, Brock and Misty accompany him on his various travels as he wanders across the land, searching deep and wide, on a quest of magnificent scope to find and catch every type of Pokmon that exists. While Brock is a pretty morally upstanding member of the community in general, he's kind of a notorious creep and he's definitely engaged in a few other unsavory actions. Maybe some other companions hold up better.