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. She also did the narration work in the opening scene of Walt Disney’s Cinderella.
Outside of Disney, she voiced Frances Albacore in the Warner Bros. animated film, Cats Don't Dance, which was her final role.