But the actress - now 37 and a perfectly respectable mother of three - has confessed she too had her teenage tearaway days and dabbled in Class A drugs.
Melissa Joan Hart as Sabrina
In her new tell-all book called 'Melissa Explains It All', previewed in Life & Style magazine, everyone’s favourite nineties witch explains how she dabbled with marijuana, Ecstasy, mushrooms and mescaline for a year.
Melissa, who also starred in 'Clarissa Explains It All', added that she hooked up with stars like Backstreet Boy Nick Carter and actor Ryan Reynolds.
WATCH the video above for more.