Debra Lynn Messing (born August 15, 1968) is an Emmy and SAG winning American actress, known for portraying Grace Adler in Will & Grace and for appearing in a series of film roles. Messing was born in the New York City borough of Brooklyn to Jewish American parents of Russian ancestry, Brian Messing, a sales executive for a jewelry manufacturer, and Sandra, who has worked as a professional singer, banker, travel and real estate agent. When Messing was three, she moved with her parents and her older brother, Brett, to East Greenwich, a small town outside Providence, Rhode Island.

During her high school years, she acted (and sang) in a number of high school productions, including the starring role in the musical "Annie" and "Fiddler On the Roof". Messing took lessons in dance, singing, and acting. While her parents encouraged her dream of becoming an actress, they also urged her to complete a liberal arts education before deciding on acting as a career. Following their advice, she attended Brandeis University in Waltham, Massachusetts. During her junior year, she studied theater at the prestigious London-based British European Studio Group program, an experience that fueled her desire to act.

In 1990, after graduating summa cum laude from Brandeis with a bachelor's degree in theater arts, Messing gained admission to the elite Graduate Acting Program (which accepts only about 15 new students annually) at New York University, where she earned a master's degree in fine arts after three years.

Messing met her husband, Daniel Zelman (an actor and screenwriter), on their first day as graduate students at NYU. The two were married on September 3, 2000, and live in New York City. On April 7, 2004, Messing gave birth to their son, Roman Walker Zelman.

According to Star Magazine, Messing recently moved back to New York from LA.