St. Louis native Mickey Carroll started learning the ins and outs of showbusiness when he was just a child, taking dance lessons at a local theater at age seven. Within a few years, he was booking professional jobs in Hollywood, lending his voice to radio for ads like the "Call for Philip Morris" series. Standing at only 4'7", Carroll's size made him a natural fit for casting as one of the Munchkins in 1939's The Wizard of Oz. However, after appearing in the little person ensemble, the actor would largely retire from show business, providing only occasional interviews about his experiences working on the film over the decades to come. In 2009, Carroll passed away at the age of 89.