Jay Hanna “Dizzy” Dean (16 January 1910 – 17 July 1974), also known as Jerome Herman Dean, was an American professional baseball player. He played in Major League Baseball as a pitcher for the St. Louis Cardinals, Chicago Cubs and the St. Louis Browns. A brash and colorful personality, Dean was the last National League pitcher to win 30 games in one season. After his playing career, he became a popular television sports commentator. Dean was elected to the Baseball Hall of Fame in 1953.