Shadow Spy Net

Gerald Robotnik or Proffesor Gerald is the grandfather of Doctor Eggman and Maria Robotnik. Proffessor Gerald Robotnik is the creator of Shadow the Hedgehog, Space Colony ARK, the Biolizard, Artificial Chaos, and various other projects. He was also noted as "one of the most brilliant geniuses of all time." He has gray hair and blue eyes and wears a lab coat, brown turtleneck sweater and pince-nez glasses.

Prof. Gerald Robotnik
Gerald in a photo with Maria

First apperance

Sonic Adventure 2


Sonic Adventure 2 Sonic Adventure 2: Battle Shadow the Hedgehog (game)


Maria Robotnik (granddaughter) Shadow the Hedgehog (hypothetical son) Doctor Eggman (grandson)

Prof. Gerald loved his granddaughter, Maria Robotnik, and was working on a cure for the fatal illness she had, until G.U.N came. Maria was killed by G.U.N while assisting Shadow in escaping them.

Fifty years before the main series, he attempts to create the "Ultimate Life Form" under the funding of the United Fedaration, hoping that it can help cure Maria's illness. He fails various times until meeting with the alien, Black Doom, and using his DNA to create Shadow. He learns of Black Doom's true plan (to destroy the planet), and prepares the ARK to act against Black Doom when the time comes. Later, G.U.N decided Gerald's experiments were dangerous to humanity, and board the ARK to shut them down, killing Maria in the process. This caused Gerald to lose grip on reality, and create plans to crash the ARK into the planet. He is then captured by the government and executed.