Harry Osborn (Earth-99721)

Harold "Harry" Osborn is the only child of Norma Osborn and heir to the Oscorp dynasty. After being diagnosed with cancer, Harry was briefly transformed into the "Neo-Goblin" by a refined strain of the "Green" to cure him. After being separated from his alter-ego by best friend Peter Parker, Harry must combat what he calls the "goblin sickness" (the lasting side effects of the Green) by regularly drinking a vial of a counter-agent.