Also, he was part of the writing team that gave us this:
Egon: Vigo the Carpathian. Born 1505, died 1610.
Peter Venkman: 105 years old, he hung in there, didn't he?
Ray: He didn't die of old age, either. He was poisoned, stabbed, shot, hung, stretched, disembowled, drawn and quartered.
Peter Venkman: Ouch.
Winston: Guess he wasn't too popular at the end, huh?
Egon: No, not exactly a man of the people. Also known as Vigo the Cruel, Vigo the Torturer, Vigo the Despised, and Vigo the Unholy.
Peter Venkman: Wasn't he also Vigo the Butch?
Ray: And dig this, there was a prophecy. Just before his head died, his last words were "Death is but a door. Time is but a window. I'll be back."