|This character exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Professor Egg is a character that appears in the Sonic the Hedgehog comic series and its spin offs published by Archie Comics. He is an alternate version of Dr. Robotnik from the zone of Mobius-Seventeen. He is a mask-wearing supervillain and the arch-enemy of Stealth the Hedgehog,
While Professor Egg was battling Stealth the Hedgehog in a city, him and his zone were destroyed during Master Mogul's rampage through the Cosmic Interstate, but were later restored by Titan Tails. (StH: #149, #150)
- Professor Egg is a parody of Marvel Comics' Green Goblin.