And the Wiki says…
Marina Sirtis (born March 29, 1955[1]) is a British actress who is most noted for playing the half-human half-Betazoid Counselor Deanna Troi on the television and film series Star Trek: The Next Generation. She also provided the voice of Demona in the animated series, Gargoyles. She is also noted for appearing in the Oscar winning movie Crash as well as a semi regular on Girlfriends. [Wiki]
