Denzou Yamada 山田伝蔵

Denzou is gruff and strict, and his skills as both a ninja and a teacher is widely known. He is frequently exasperated by the antics of his class, but is also proud of their progress when it matters.

Denzou also takes any available opportunity to crossdress when it arises, becoming Denko, his alter-ego as a woman. Early in the series, Denzou's grotesque disguise was a running joke, but has recently been portrayed as rather effective.