Niether appear in the series (unless you count Mr. Stay Puft as kind of a lobotomized part of Gozer); Gozer proper is mentioned in "Citizen Ghost", "Revenge of Murray the Mantis", "Collect Call of Cthulhu", "Janine Melnitz: Ghostbuster" and "Captain Steel Saves The Day" (This list may not be complete). Vigo is only mentioned in "Partners In Slime"
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