lets figure out who tf this guy is

lets consider what we know -this character is wearing a public safety uniform or male school uniform -they have white sneakers -they have some kind of thin blade (appears to be a sword/katana?) -they address csm as “chainsaw man” and speak quite strongly so who are our suspects?

well there really arent too many characters who wear white sneakers actually so we can narrow it down to -kobeni -angel -yoshida -kobenis brother

id cross of kobeni and her brother right off the bat. neither of them speak with a strong tone of voice and kobeni only carries a kitchen knife, not a thin blade (and i doubt her brother would just happen to carry around a katana)

many people claim yoshida, but he doesnt talk like that. in the original japanese text this voice is more formal (as if talking to a superior) while yoshida talks to denji/csm very casually. dont really see why that would change here

my number one suspect is angel, as he -wears a public safety uniform -wears white sneakers -has open access to blades/katana due to his power -is a known worshipper of lord chainsaw, so would refer to him as a superior

ive also looked at the characters hands and the camera angle the hands on our suspect are too small to be yoshidas and not slender enough to be kobenis/her brothers and the camera angle cuts off JUST before the tips of angels wings could be shown