Margaret Evelyn "Maggie" Simpson (born April 19, 1987), is the 1-year-old, and youngest, child of Marge and Homer, and the baby sister to Bart and Lisa and the tetartagonist of The Simpsons. She is often seen sucking on her pacifier, and, when she walks, she trips over her clothing and falls on her face. Because she rarely ever talks, Maggie is the least seen and heard in the Simpson family.