Which child actress played Tootie in the film "Meet Me in St. Louis"?

The child actress who played Tootie in the film "Meet Me in St. Louis" was Margaret O'Brien. In the film, the well-off Smith family has four beautiful daughters, including Esther (Judy Garland) and little Tootie (O'Brien). The 17-year old Esther (Garland) has fallen in love with the boy next door who has just moved in, John Truitt (Tom Drake).

"Meet Me in St. Louis" is a classic MGM romantic musical comedy that focuses on four sisters in the Smith family on the cusp of the 1904 St. Louis World's Fair. The film spotlights the sisters' education in the ways of the world, which includes, but isn't limited to, learning about life and love, and civility from a prototypical boy next door. In the end, love (accompanied by song, dance, and appropriate dress), conquers all.

Margaret O'Brien (Angela Maxine O'Brien) was born on January 15, 1937 in San Diego, California, USA. She is now known as a skillful actress for her performances in American films, on radio, television, and the stage. Beginning a prolific career as a child actress in big films for Metro-Goldwyn-Mayer at the age of four, O'Brien has become a popular star (child to adult). In 1944 she was honored with a Juvenile Academy Award for Outstanding Child Actress. In her later career, beginning around the age of 66, she has appeared in supporting roles on television, the stage, and in big and small screen movies. At the age of 83, she is still a very popular actress.