Betty Lou Gerson
was an American actress predominantly active in radio, but also in film and television, and as a voice actress.
For Disney, she voiced Cruella De Vil and Miss Birdwell in the original One Hundred and One Dalmatians and was also the narrator in Cinderella. She also had a cameo as the Old Crone in Mary Poppins.
Outside of Disney, she voiced Frances Albacore in the Warner Bros. animated film Cats Don't Dance, which was her final role.