The three blonde sister witches have the surname of Spellman until it was pointed out that it was also the last name of Melissa Joan Hart's character on Sabrina the Teenage Witch (1996) (1996), so it was changed to Stillman.
Jennifer Sky plays the eldest Stillman sister, but she is actually four years younger than Jenny McCarthy and 2 years younger than Melody Perkins.
The Stillman sisters entry in The Book of Shadows reads, "Stillman Sisters Mabel, Mitzy and Margo Common witches known for their small time hustles and cons Not worth vanquishing. If they become a nuisance, try a simple spell to bind their magic.".
This is the second time that Melody Perkins has played a villainous character who is also a witch and a sister. She previously played the villain Astronema in Power Rangers in Space. Unlike Astronema, her character does not redeem herself at the end.