Mr. Yamashiro is a teacher at Third Street School and a minor, recurring character in Recess. It is not stated which grade he teaches. He has a lime green convertible car and practically lives in the teachers' lounge. In which, the butler knows his needs. Miss Lemon sometimes accompanies him socially.
He made his first appearance in the episode "Teachers Lounge", in which he played a prominent speaking role. Since which he made background appearances in the series.
- He is of Japanese heritage, hence his appearance and surname.