Principal Shinonome

Principal Shinonome is the bald principal of Tokisadame Highschool. While known for his old jokes and puns, unknown to most, he is a talented wrestler. In "Nichijou Episode 26", he is referred to as "Principal Shinonome", implying he may be a relative of Hakase. He is shown to be self-conscious of his lack of hair.

Appearance
He wears a black suit with a long-sleeved white shirt and a full Windsor tie knot. In "Nichijou Episode 6", where the principal wrestled with a deer, it is revealed that in the inside of his suit he wears a vest. It's unknown if the vest was worn everyday by him. In episode 6, it is revealed that his 'hair' is actually a toupee, and that he is actually completely bald. He tried to have his hair grown back by going to a doctor. Unfortunately, his hair already gone permanently.

Personality
He is rational, proved by him when thinking he wouldn't win if he climbed the statue again against the deer. He can't make a good joke as the students didn't laugh at the ceremony. He is calm, except when talking about his hair, and in a running gag in the show, about the principal's paranoia over the vice principal trying to take his job.

Kousuke Oura (also known as Vice Principal)
Kousuke Oura is the vice principal of Tokisadame Highschool. He is also known as Kyoutou-sensei. He enjoys tormenting Principal Shinonome

Manabu Takasaki
The principal has a friendly relationship with this teacher in the few moments they are seen together, like when he cheered Manabu on when he was really enthusiastically doing push ups. Unknown if the principal approves of Manabu's confused antics.

Character songs

 * Kouchou no Cho Cho Kouchou