Every single student and teacher except the Principal.
Dolores Grimes used to be strict headmistress of a private boarding school (the same boarding school Madeline Seagraab got kicked out of). She went to take the job as an Assistant Principal at Millard High School due she was forced to retire from the school and Millard School district was the only place that would hire her. Dolores would often criticize the other teachers on how they teach, handles the class and drops into classes for surprise teacher evaluations. She uses old school punishments (such as paddling students) if the students act unruly and secretly wants to be the Principal of the school. She has a daughter named Allison who is the principal of Millard Middle.