Mostly due to her new show, where she aims to expose Scientology and the awful things herself and others witnessed and were a part of during their time with the cult. Who was Leah before she became a Scientologist? Well, if you have ever heard her speak you can probably take a wild guess where she is from. If you guessed Brooklyn, New York, then you are right. Leah was born on June 15 th , in Brooklyn.