Yeardley Smith is one of the most famous women on earth, though you might not know it if you just bumped into her somewhere — at least until she said something. That’s because Smith is the voice of Lisa Simpson, the precocious 8-year-old middle child of Homer and Marge Simpson and the center of some of The Simpsons ’ best episodes.

Yeardley Smith (born July 3, 1964) is a French-born American actress, voice artist, writer and painter. She is best known for her long-running role as Lisa Simpson on The Simpsons.

For over 35 years, Yeardley Smith has voiced the character of Lisa Simpson on The Simpsons, which is not only the longest-running American animated series in history, but the longest-running American sitcom as well.

Lisa Marie Simpson is a fictional character in the animated television sitcom series The Simpsons. She is the middle child of the Simpson family. Voiced by Yeardley Smith, Lisa was born as a character in The Tracey Ullman Show short "Good Night" on April 19, 1987.