Hermione's mother, Monica Granger, was very understanding of her daughter's calling to magic. That made it all the more heartbreaking when Hermione was forced to erase all memory of herself from her parents' lives for their own protection, in order to keep them safe from death eaters. Fortunately, the process could be reversed, so Hermione was spared from becoming essentially an orphan.
Michelle Fairley, who played the part, has appeared in a number of roles throughout her life but we think everybody in the world now recognizes her as Catelyn Stark from the phenomenally successful "Game of Thrones". If our mentioning that gave anybody Red Wedding flashbacks, we're truly sorry. She'd worked steadily in television long before getting her Harry Potter role, but the part gave her profile a lift, and as well as her "Game of Thrones" success she's also played a major part in "Suits".