
Antonina Jadwiga Siemaszko (born July 14, 1970) is an American actress, best known for her film roles in Little Noises (1991), The Saint of Fort Washington (1993), and for her role as Eleanor Bartlet in The West Wing (2001–2006). Siemaszko was born in Chicago. Her father, Konstanty Siemaszko, was a Polish-born Roman Catholic, and a survivor of the Polish Underground and the Sachsenhausen concentration camp. He escaped to the United Kingdom where he met Nina's mother, Collette McAllister. One of her brothers is actor Casey Siemaszko. Her other brother, Corky, is a writer for the Daily News and a reporter at NBC News. She attended The Theatre School at DePaul University. She played an undercover cop in Reservoir Dogs featured in a scene that wound up on the cutting room floor ensuring that the work became a rare example of a film containing no dialogue delivered by an actress. It was released on DVD. She played Mia Farrow in the CBS miniseries Sinatra. She played the leading role in Wild Orchid II: Two Shades of Blue.
The Hatred
2017
Togetherness
2015
The Bling Ring
2013
Monday Mornings
2013
The Artist
2011
Past Life
2010
Eli Stone
2008
Private Practice
2007
Saving Grace
2007
Grey's Anatomy
2005
Cold Case
2003
Without a Trace
2002
The Guardian
2001
The Darkling
2000
The Huntress
2000
The Big Tease
1999
The West Wing
1999
Judging Amy
1999
Jakob the Liar
1999
Goodbye Lover
1999
Sports Night
1998
Breast Men
1997
Kiss & Tell
1997
Suicide Kings
1997
Runaway Car
1997
George B.
1997
Johns
1996
Sawbones
1995
Floundering
1994
Chicago Hope
1994
Airheads
1994
Baby Brokers
1994
Twenty Bucks
1993
Sinatra
1992
Red Shoe Diaries
1992
Little Noises
1992
Bed & Breakfast
1991
Lost Angels
1989
License to Drive
1988

































































