Valerie Cruz plays Melonie Diaz's mother despite only being 8 years older in real life. Also, Madeleine Mantock plays the eldest sister, but is 6 years younger than Diaz in real life.
When Harry unties the sisters during their first meeting, Mel attempts to freeze Harry using her hands in an open shaking motion, which does not work. This is no doubt a tribute to her 1998 original counterpart, Piper Halliwell. Piper was able to freeze time using her hands in such a manner.
The motto that the fictitious sorority in this episode uses, Esse Quam Videri, is actually the motto of the international sorority, Delta Phi Epsilon.