He continued, “Until the casting director, great lady, English Lady, Mary Selway sat me down — I mean, I’ve known Mary for many years. She could be tough, and very insistent, and she just said, ‘You have to do this movie. Just do it, Ralph.’ And she said it with such emphasis. My sister, Martha, who has children, said, ‘You’re not gonna do Voldemort? You’re thinking of saying no?'”