Full Name: Mr. Clapper (first name unknown)
Mr. Clapper is the music teacher at Hazelnut Middle school. We've seen him giving music lessons, he plays the piano, and he conducts the band. He also wrote the music for the school musical, "Detention".
Most Memorable Quote:
"Any half-wit with a rhyming dictionary could have put words to my music!" - "You Oughta Be In Musicals"