Principal Hex (quirk unknown)
Full Name: Hale Aizawa (y'all should see what I see for my to say this)

Hero Training Teachers Blue and Red

Full: Kerm Akared (Karma Akabane)
Hero: Rouge (Magma Quirk)
Full: Natise Shilue (Nagisa Shiota)
Hero: Aqua (Cemater Quirk)

Hero History Teacher (vampire quirk)

Full: Mikala Hyakure (Mikaela Hyakuya)
Hero: Hetero

Nurses (Twin Siblings: Pain and Panic)

Full: Penelope Yukikae (Pain Quirk)
Hero: Rose

Full: Patricia Yukikae (Panic Quirk)
Hero: Azul

First Year Home Room Teacher (Bey Quirk)

Full: Shu Kurenai (honoring his name from his show)
Hero: Red Eye (again honoring his name)

Based on the characters
SHU KURENAI, MIKAELA HYAKUYA KARMA AKABANE, NAGISA SHIOTA AND KATHERINE BISHOP
from their shows/company
Beyblade Burst, Seraph Of The End, Assassination Classroom, and Marvel Comics

Vice Principal (Spirit Quirk)

Full; Aaron Ruby
Hero: Blade

1st year's counselor (quirk brutally honest; twins with Aaron and sometimes assigned to take other students from different class/year)

Full: Pearl Ruby
Hero: Counselor

Heroes Art (quirk Drawings)

Full: Laura Marnell
Hero: Drawer