Dr. Ivo "Eggman" Robotnik (also known as Dr Robotnik or simply Robotnik) is one of the three co-owners of the B.U.R. Shipping Company.
A blustering, loudmouthed despot, Dr. Robotnik heads the Machinery/Robotics division of B.U.R. Industries. While he has proven to be quite brilliant in his robotic creations and manufacturing, he is often found to be pompous and ill-tempered, and has various overconfident characteristics. The only things that tends to get him out of his bitter and ill-moods are success in his schemes and eggs; any sort of egg will do really, as that's all he tends to eat!