Over the years, the munchkins have gotten something of a bad rap. There's a ton of stories about shenanigans going on after the cameras stopped rolling, and let's clear something up right now: they're not true. Probably not true. One of the tough things about The Wizard of Oz is separating fact from fiction, but according to the munchkins themselves, there was no drunken carousing, no orgies, and no need for them to be picked up with butterfly nets for shooting the next morning. In fact, the stories make them sad, so please stop it.
One of the munchkins is in more of the movie than you might think, and that's Mickey Carroll. Even though the core group of munchkins was made up of a troupe of largely European vaudeville actors called the Singer Midgets, Carroll was born in St. Louis. That meant he had something big going for him: he could speak English. According to Carroll's later interviews, he was singled out of the crowd not just because he could speak English but because he could project. He got his start in vaudeville, too, describing himself as a "song-and-dance man," while many of the Singer Midgets had talents that were along the lines of strongman acts, magic, and even performing as cowboys and soldiers. When it came time for filming The Wizard of Oz, they needed people who could deliver what would become some pretty iconic lines.
Carroll did, along with fellow munchkin Meinhardt Raabe (who played the coroner who declares the Wicked Witch of the East dead). It was Carroll who provided voices for the Lollipop Guild and even said the iconic "Follow the yellow brick road." He was a town crier, too, and by the end of filming, he'd spent three weeks doing voice-over work, including Auntie Em's panicked shouts when the tornado hits. When she couldn't yell loud enough, Carroll stepped in. He was one of the last surviving munchkins, dying in 2009 at 89 years old. We hope he found his own happiness at the end of the rainbow.