Shannon Doherty, a cross between Bette Davis and Scary Spice, uses her evil powers for good on such TV shows as “Beverly Hills, 90210” and “Charmed.” Or at least, when she’s not using her powers for evil feuding with cast members, producers and directors.

Eminently watchable, Doherty sneers out every line, relishing in her co-stars anxiety and discomfort. Perfectly cast as a witch in “Charmed,” Doherty again chewed up her co-stars Holly Marie Combs and Alyssa Milano until they could take it no more and cast her off like a bad spell.

Replaced with Rose McGowan, an inspired but not as incendiary a choice, “Charmed” falters as it makes its way to season eight.

Grade: B

Charmed: The Complete Series is currently available.