Dr. Robotnik (Archie Comics)

Dr. Ivo Robotnik was the archenemy of Sonic the Hedgehog and the Freedom-Fighters for a long period of time in the Archie Comics universe, which in turn is a spin-off of the original games, however in recent times (as part of an effort to make the comics more like the games) Dr. Ivo Robotnik has been killed and replaced with Dr. Eggman.