Yak

Yak was the founder of Yak Yak University and A. D. Bubbles's rival. He wanted to be a bubble-maker like A.D. and even become the next president of BITBU, but he didn't get accepted. He instead created a new bubble-making school, Yak Yak University. At one point, he even disguised himself as a bubble-maker named Samuel Bunsarbigg and became president of BITBU. However, he lasted less than a year in office before his true identity was discovered. Yak lived for an extraordinarily long time, and his final wish to his wife was to name their son Yak Yak.