Margo Seibert is an American actress and singer. She graduated from Glenelg High School in 2002 and American University in 2005 with a degree in International relations, and also was involved with theatre. Seibert was nominated for a Drama Desk Award in 2014 for playing the title character of Tamar in the Off-Broadway musical Tamar of the River by Marisa Michelson and Joshua H. Cohen and produced by the Prospect Theatre Company. She made her Broadway debut originating the role of Adrian Pennino in the musical version of Rocky originally played in the films by Talia Shire. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.