Dr. Eggman

Dr. Eggman AKA Dr. Ivo Robotnik, is Sonic's enemy and one of Bowser's partners. He first met Pooh and friends in Winnie the Pooh Meets Sonic the Hedgehog, where he created a robotic counterpart of Sonic, known as Hyper Metal Sonic.

Trivia

 * Dr. Eggman, alongside Metal Sonic, will join Bowser and company as one of the Emerald Hunters in Pooh's Adventures Armada: Hunt for the Chaos Emeralds.