Principal

This nameless man works as the principal of Iwatobi High School.

Appearance
He is a kindly-looking, middle-aged man with short, brown hair with one lock swept across his forehead and brown eyes. He is sometimes seen wearing a short sleeved white shirt with a dark gray sweater vest, red tie and light gray trousers.

Personality
The principal appears to be a reasonable individual who addresses Haruka Nanase, Makoto Tachibana and Nagisa Hazuki for entering the old Iwatobi Swimming Club building and Samezuka Academy's indoor pool in a calm but serious manner and later commends the Iwatobi Swimming Club for winning their tournament, encouraging them to continue doing well.