Spencer Bonaventure Tracy (April 5, 1900 – June 10, 1967) was an American actor, noted for his natural style and versatility. One of the major stars of Hollywood's Golden Age, Tracy won two Academy Awards for Best Actor from nine nominations, sharing the record for nominations in that category with Laurence Olivier.

Tracy first discovered his talent for acting while attending Ripon College, and he later received a scholarship for the American Academy of Dramatic Arts. He spent seven years in the theatre, working in a succession of stock companies and intermittently on Broadway. Tracy's breakthrough came in 1930, when his lead performance in The Last Mile caught the attention of Hollywood. After a successful film debut in John Ford's Up the River starring Tracy and Humphrey Bogart, he was signed to a contract with Fox Film Corporation. His five years with Fox featured one acting tour de force after another that were usually ignored at the box office, and he remained largely unknown to audiences after 25 films, almost all of them starring Tracy as the leading man. None of them were hits although The Power and the Glory (1933) features arguably his most acclaimed performance in retrospect.