Who is ZUUL in the new Ghostbusters?

Who is ZUUL in the new Ghostbusters?

Zuul (also known as The Gatekeeper) is a demigod and minion of Gozer, alongside Vinz Clortho. It possessed Dana Barrett in Ghostbusters and both Callie Spengler and Lucky Domingo in Ghostbusters: Afterlife.

Who plays Spengler Ghost?

Bob Gunton: The Ghost Farmer (Egon Spengler)

How is Harold Ramis in new Ghostbusters?

In the 2021 movie Ghostbusters: Afterlife, the age-progressed image of Ramis appears as the ghost of Egon Spengler; a dedication before the end credits also reads “for Harold.”