Fast Facts

  • While attending the University of Illinois, she trained as an opera singer and sang at the Nashville theme park Opryland.
  • Landed an understudy role in a stage production of West Side Story after moving to New York in the early 1980s.
  • Continued her stage work as she turned in a critically acclaimed performance as Viola in Shakespeare's Twelfth Night.
  • First film role was in Scarface (1983) as Al Pacino's sultry sister, Gina Montana.
  • Moved to London in the early 1990s with her film director husband, Pat O'Connor.
  • Before replacing Eric Bogosian in the lead role on NBC's Law & Order: Criminal Intent, she had a recurring role on the CBS drama Without a Trace.


  • 1986, Oscar — Best Performance by an Actress in a Supporting Role: Nominee
  • 1987, Golden Globe — Best Performance by an Actress in a Supporting Role in a Motion Picture: Nominee
  • 2003, Tony — Actress (Musical): Nominee


  • Pat O'Connor — Husband
  • Mary Mastrantonio — Mother
  • Jack O'Connor — Son
  • Frank Mastrantonio — Father
  • Declan O'Connor — Son


  • Attended University of Illinois, Champaign, IL

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  • Birth Place: Oak Park, IL
  • Birthday: November 17, 1958, Scorpio
  • Profession: Actor, Singer
  • User Rating:3.79 out of 5 (24 ratings)
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