The loud, constantly screaming radio host father of Guest, and the English literature teacher at UA high school. He goes by Present Mic in hero mode, he goes by Yamada in teacher mode, and he goes by dad or dada in dad mode.

The cool, Broody uncle figure of Guest, and homeroom teacher of class 1A at UA high school. He goes by Eraserhead when in hero mode, Mr. Aizawa or Aizawa-sensei in teacher mode, and Uncle Zawa in Uncle mode.

The adoptive son of Shota Aizawa, and the cool cousin figure of Guest. He goes by Shinso in hero mode, he goes by Shinso or Hitoshi in student mode, and he goes by 'toshi in cousin mode.

She is a sweet girl and a cousin figure to Guest. She goes by Eri.

The hero art history teacher who is an aunt figure to Guest. She goes by midnight in hero mode, Kayama Sensei in teacher mode and auntie night or auntie yama in aunt mode.