Professor Oak

Professor Oak is a character first appearing in Throwback Thurzday.

Description
He looks like an average Treemendous, but he wears a fish bowl on his head to breathe above water, with a Dr. Smart wig.

He likely wants to be a scientist, since he can do science experiments and is able to make a milkshake from milk and stomach acid.

Throwback Thurzday
Cheesy captured Professor Oak from the Shower Waters and put a fish bowl on his head so he could breathe above water. Dokuro-chan took him home, leaving Cheesy behind. She called the alien Professor Oak and gave him his wig.

Marcelo Serrano made a series of comic books called The Adventures of Professor Oak. In real life, he did science experiments, like mixing milk and his stomach acid to make a milkshake. He threw a blender into a computer.