**Margaret O'Brien** (1937) is an American actress, an icon of the child stars of Hollywood's Golden Age. She is renowned for her ability to portray complex and deeply emotional roles, often characterized by realistic and moving crying scenes.

Her most iconic performance is that of Tootie Smith in *Meet Me in St. Louis* (1944) alongside Judy Garland, which earned her a Juvenile Academy Award. Other notable roles include *The Cross of Lorraine* (1943), *The Canterville Ghost* (1944), and *Little Women* (1949), where she portrayed Amy. Her primary film career was concentrated in the 1940s, solidifying her image as one of the most talented child actresses.