The Sanderson Sisters costumes from Hocus Pocus (1993) were recycled in this film and can be seen on three new actresses at the end of the film when the gray spell breaks.
Kimberly J. Brown (Marine) and Daniel Kountz (Kal) reconnected and began dating in 2016. The couple announced their engagement in June 2022 and wed in April 2024.
Debbie Reynolds, Judith Hoag and Joey Zimmerman are the only individuals to appear in all four 'Halloweentown' films.
When Gwen turns into a monster, it was actually Judith Hoag herself (in makeup) playing it, not a stunt person/stand-in.
The witches mask worn by Judith Hoag gives nod to the witches masks in "Halloween III: Season of the Witch" from Silver Shamrock.