Born and raised in Boston, Massachusetts, Billy is a fast running scrapper with an ‘in-your-face’ attitude, and seems to think he can handle anything. He often acts a lot tougher than he can actually prove to be, though he’s certainly not weak.
Meeting the Ghostbusters
He first met the Ghostbusters in London while seeking a cure for his lycanthropy. After a semi-successful blood transfusion, Billy has gained the ability to control his transformations at will, and retain his humanity while in wolf-form.