The voice actors were recorded on August 21, 1986.
Hob Anagarak received an entry in the 2016 tie-in book "Tobin's Spirit Guide - Official Ghostbusters Edition" on page 72 and 73, where it is identified as a Class VII Fire Deity.
This marks the second appearance of Peter's father as well as Dr. Bassingame, meaning it takes place after Venkman's Ghost Repellers (1987) and The Spirit of Aunt Lois (1987).
A book-and-tape read-along set was released based on this episode.
During the final battle, Hob Anagarak blasts a billboard. The billboard advertises a drink called "Heart of the Samurai" and features Japanese slang in Hiragana characters, "Nanjaro Hoi." This generally means "What do you want?"