Julianne Nicholson, a native of Medford, is set to star in the soon-to-be released movie " Black Mass ," about Boston gangster "Whitey" Bulger.

In the film, Nicholson plays Marianne Connolly, the wife of crooked FBI agent John Connolly. Despite serving as law enforcement officials, John is loyal to Bulger.

Nicholson has previously appeared in the hit television shows "Boardwalk Empire," "Masters of Sex," and "Law & Order." The 44-year-old has been acting since 1997.