Warning: SPOILERS for Ghostbusters: Afterlife.
Ghostbusters: Afterlife has many references to, and cameos from, the original Ghostbusters movie, but Rick Moranis's Louis Tully doesn't return. In Ghostbusters, Rick Moranis is a nerdy accountant who is possessed by a Terror Dog, becoming the «Keymaster.» Together with Sigourney Weaver's Dana Barrett (also possessed), they seek to bring forth Gozer the Destroyer. Moranis reprised his role for Ghostbusters 2, attempting to become the fifth
Read more on screenrant.com