Joanne Dru (January 31, 1922 – September 10, 1996) was an American film and television actress, known for such films as Red River, She Wore a Yellow Ribbon, and All the King's Men.
Born as Joan Letitia LaCock in Logan, West Virginia, Dru came to New York City in 1940 at the age of eighteen. After finding employment as a model, she was chosen by Al Jolson to appear in the cast of his Broadway show Hold On to Your Hats. When she moved to Hollywood, she found work in the theater. Dru was spotted by a talent scout and made her first film appearance in Abie's Irish Rose (1946). Over the next decade, Dru appeared frequently in films and on television. She was often cast in western films such as Howard Hawks's Red River (1948), John Ford's She Wore a Yellow Ribbon (1949), and Wagon Master (1950).
She gave a well-received performance in the dramatic film All the King's Men (1949) and co-starred with Dan Dailey in The Pride of St. Louis (1952), about major-league baseball pitcher Jerome "Dizzy" Dean. She appeared in the James Stewart drama Thunder Bay in 1953 and then a Martin and Lewis comedy 3 Ring Circus (1954). Her film career petered out by the end of the 1950s, but she continued working frequently in television, most notably as "Babs Wooten" on the 1960-61 sitcom, Guestward, Ho!.