Kyoutou

Real name and age unknown. Wears a wig. According to Tanaka, he is a "vice principal who tends to engage in problematic behavior" and has a significant history with the volleyball club (due to the disturbances involving Toumura and Nishitani). When Hinata and Kageyama first joined, they knocked his wig off. He let the incident go without further question on the condition of secrecy, but this incident led to Hinata and Kageyama being banned from the gymnasium. The wig is a tacit understanding among all the students (only Kageyama was unaware of it).

In the anime version, during the Shiratorizawa match, he surprisingly takes off his wig and waves it around to cheer, showing his passionate side.