Cindy Lou Who is a sweet, lovely and beautiful young girl from Dr. Seuss's storybook How the Grinch Stole Christmas! and the 2000 film, appearing as the tritagonist. She is a two-year-old Who girl who lives in Whoville and plays a pivotal role in the story. In 1966, she was played and voiced by June Foray and in 2000, she was played by Taylor Momsen in the live-action movie of the same name.