I feel something's peering over me.
—Mullins to Dewey.

Principal Mullins is the principal of William B. Travis Prep School. She was a recurring character in Season 1, but was promoted to a main character from the second season of School of Rock.

She is portrayed by Jama Williamson.


Principal Mullins is a strict nugget trying to understand herself as a principal. She has Dewey to help her but will she find out about the band?


Season 1

Season Appearances: 8/12

Season 2

Season Appearances: 10/13

Season 3

Season Apperances: 13/18

Overall Appearances: 31/43


Okay, children, quiet coyote. Mouth closed, ears open.
—Principal Mullins (Voices Carry)


  • She is different to the principal in the School of Rock movie.
  • She is shown to be very attractive and beautiful.
  • She has one Cat.
  • She was a recurring character in Season 1 and a main character in Season 2 and 3.
    • Despite being promoted to a main character, she still averages an absence every three to four episodes. She is the only main character to have been absent or make a cameo in any episode. So far, as a main character, she has been absent eight episodes.
  • She dyes her hair to get rid of any gray hair someone could spot on her head, this is revealed in the episode, We're Not Gonna Take It.
  • She spent her Summers as a dog groomer in High School (Changes).
  • It is implied that she has feelings for Dewey. (Is She Really Going Out with Him?).
  • She is allergic to Dogs. (Puppy Love).
  • She is an avid collector of anything that's related to a whale. (Don’t Know What You Got (Til It’s Gone)).
  • Her favorite type of pie is rhubarb pie. (Surprise, Surprise).


To view the Principal Mullins gallery, click here.