[On if it was difficult ending The West Wing] Mary McCormack: For that amount of time it was difficult but for the rest of the cast and the crew it was like a lifetime. I felt lucky to be there even for as short a time as I was there. The fans were amazing and it was just nice to be on a show that people were watching and talking about. It was a great role and I worked with Allison Janney mostly who's now one of my best friends so it was a great experience.
[On getting the part in the play Amahl and the Night Visitors] Mary McCormack: I was twelve but looked like an eight-year-old boy. As luck would have it, none of the boys in town could sing, so I got the part and wore a hat.
Mary's parents divorced in 1990.
Mary appeared with her brother William McCormack in the 1997 independent film Colin Fritz.
Mary replaced actress Kate Walsh in the film 1408 after Walsh had to drop out of the project.
Mary is of Irish descent.
Mary studied acting at the William Esper Studio.
Mary made her feature film debut in the 1994 remake of A Miracle on 34th Street.
She was married in the summer of 2003.
She is currently filming a TV-series pilot entitled "In Plain Sight."