Margaret Simpson ("Maggie") is the youngest daughter in
The Simpsons household, eternally a baby. Her claim to fame is sucking on her
pacifier. She has spoken only one word in the normal continuity of the series--"Daddy" (voiced by [Elizabeth Taylor]
?)--and no one heard it.
During one Halloween episode, she became an Alien and had the voice of [James Earl Jones]?.
See: The Simpsons/Characters