At only 16 years old, Parker was accepted into the American Academy of Dramatic Arts. She went on to study Shakespeare at the British American Drama Academy, work with the Independent Shakespeare Company, Will & Company, and performed with The Blank Theatre's Young Playwrights Festival for more than 10 years. Parker's first credited role was as "Veronica" on an episode of Angel. Parker is married to actor Eric Nenninger. The couple have two children, James and Naomi.