When Ray is reading from the Grimoire in the Latin, he says in Latin "Nisi defectum haud refieciendum" which means, "If it ain't broke, don't fix it."
The doorbell's was a shriek, possibly an homage to the variant sounds used to summon Lurch on The Addams Family.
The voice actors were recorded on June 1, 1987.
The Micawb family incorporates elements of The Addams Family and The Munsters:
- A family of benign monster/horror characters.
- Bello and Lucrecia Micawb resemble Gomez and Morticia Addams.
- Lydia Micawb resembles Marilyn Munster as the normal looking member of the family.
The Ghostbusters' clients during this episode are the Micawb family. Micawb and macabre are homonyms, with macabre meaning gruesome, ghastly, or grim (which perfectly describes the Micawb family).