The Lovely and Talented Cynthia Nixon

May 17: Actresses Cynthia Nixon, left, and Kristin Davis walk off the stage after Nixon spoke at a rally in midtown New York to urge state senators to vote yes on the marriage equality bill. The bill comes up for a vote in 34 days. (AP)

May 17: Actress Cynthia Nixon shows an engagement ring from her partner Christine Marinoni at an Action=Marriage Equality rally in midtown New York. (AP)

Cynthia Nixon (AP)

May 12, 2008: "Sex and the City" cast, Kristin Davis, Cynthia Nixon, Kim Cattrall, and Sarah Jessica Parker (l-r). (AP)

September 19, 2004: Cynthia Nixon poses with trophy for Outstanding Supporting Actress in a Comedy Series for "Sex in the City" at 56th Annual Primetime Emmy Awards. (Reuters)

Sept. 18, 2008: Actress Cynthia Nixon arrives for the DVD launch event for "Sex and the City: The Movie" in New York. (AP)