Sierra Marjory Boggess (/ˈbɒɡɪs/; born May 20, 1982) is an American theater actress and singer. She is best known for originating the role of Ariel in The Little Mermaid on Broadway, and for her multiple appearances as Christine Daaé in The Phantom of the Opera. She began by playing the role in the Las Vegas production of Phantom in 2006. In 2010, she reprised the role of Christine Daaé in the original London version of Love Never Dies, which continues the story of Phantom, opposite acclaimed West End / Broadway actor Ramin Karimloo as the Phantom. She also played the role in the Broadway production of The Phantom of the Opera in 2013.