It seems like almost every celebrated British female actor turned up in the Harry Potter series at some point, and Miranda Richardson fits that bill perfectly. As Rita Skeeter, she played a journalist who was quite the thorn in Harry's side until Hermione found a way to permanently silence her.
British fans of a certain age know and love her for her various comedic roles in the popular historical sitcom "Blackadder", but the span of her work is far greater than that. Finding time to indulge her great love of the stage as well as being in front of a camera, Richardson has had starring roles in a number of movies including "Belle", "Churchill" and "Damage". Despite being famous, she's fiercely guarded about her private life, and although she's on Twitter she's sent a sum total of six Tweets in six years!