Mr. Warhol

Mr. Warhol is a teacher at Freeport High School. He mostly teaches art class, but is seen teaching other classes as well time to time.

Mr. Warhol was first introduced on the show in the Season 2 episode, Drunk Orchestra. He was given an insane personality to go along with his passion for art. Show creator, Connor Nimmons, has made it clear that the teacher is based off of the popular artist, Andy Warhol.

Career
Mr. Warhol has said he has been working at Freeport High School since the 1970s. This is believed to be false, since he claimed to be 27 years old during his first appearance.

Behind the scenes
Connor Nimmons was the original voice for Mr. Warhol in the first three seasons. But, when the show was picked up by Adult Swim, Patrick Stewart took over the role.