 Unlike her temperamental sister Hilda, Zelda's personality was helpful and good-natured.Starting in the late 1990s, Zelda (and Hilda)'s appearances and personalities were revamped to make her more contemporary (as well as match the live-action sitcom's take on the character).In modern stories, Zelda has her trademark green hair, but appears to be only physically a few years older than Sabrina and dresses in modern fashions.