Green Goblin

"'Godspeed, Spider-Chef!'"

-Green Goblin to Chef

Dr. Heinz Doofenshmirtz is an inventor who made poor business decisions, getting himself into poverty and losing his wife to another man. His constant state of stress caused him to develop schizophrenia, and develop a second, much darker personality, the Green Goblin. The Goblin frequently takes over Doofenshmirtz's mind, driving him to violently attack and even kill anyone he wants.

Biography
Doofenshmirtz struggled as a single father, but payed the bills by creating and selling technology. His life was turned upside down when his daughter Vanessa was diagnosed with cancer, breaking him. He devoted all of his time and money into finding a cure for her condition, but was unable to. He created a chamber that was capable of holding her in suspended animation until he could discover a means of saving her.