Jumbo
Mr. Hollis is Bert's Creator and uncle. Mr. Hollis is not happy with the fact that an elephant rivals his nephew, but he inquires the jungle doctor for support. For Dr. Jumbo he also writes a cursed prescription and Jumbo starts to lose his memory. Unable to consider the simplest matters, Jumbo would like to draw from the rivalry. But his buddies prevent him and go to find support.