Dame Maggie Smith was more than just an actress; she was a national treasure in Britain, captivating audiences with her extraordinary talent for over 70 years. With her striking eyes and wry humor, Smith explored a diverse range of roles across stage, screen, and television. From the classics of Shakespeare and Agatha Christie to the magical realms of "Harry Potter" and the refined salons of "Downton Abbey," she firmly established herself as a formidable force in entertainment while defying expectations at every turn.

Born in the 1930s in Essex, Smith took her first steps onto the stage in 1952, swiftly gaining recognition for her profound ability to embody intricate characters. By the time she won her first Oscar at age 35 for "The Prime of Miss Jean Brodie," she was already an established star. To younger audiences, she may be most recognized as the authoritative Professor McGonagall in the "Harry Potter" series or the sharp-tongued Violet Crawley from "Downton Abbey," roles that cemented her place in contemporary popular culture. However, her impressive repertoire is far more extensive and transcends beyond any single character.

Here are eleven essential performances that encapsulate the brilliance of Dame Maggie Smith’s illustrious career:

1. The Prime of Miss Jean Brodie (1969)