User blog comment:Harrisondlittrell/Loud House Reenacting Captain Underpants/@comment-26302585-20170607164052

But Mr. Krupp is Captain Underpants, well, he's hypnotized into thinking he is. So it makes no sense for another character to be CU. It should be like this.

Principal Huggins - Mr. Krupp/Captain Underpants.