As it turns out, that cousin was Hart’s real-life sister, Emily Hart.
The two share a strong family resemblance!
On top of that, the role of Amanda was beloved by fans.

While her character was a bratty teenager, there was something about her that won fans over.
Emily would make an appearance on the show throughout all seven of its seasons.
The show was short-lived.

“‘Sabrina’ will be on for quite some time,” noted Paula.
However, Emily was not exactly on board with the idea.
She shared, “I was pretty excited, but then I also was sort of upset.

In the end, Emily’s wishes were granted.
She got to stay in school, as the spin-off show never took off (viaShowbiz Cheat Sheet).