
Acting
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.

Grey's Anatomy
2005

CSI: Crime Scene Investigation
2000

Law & Order: Criminal Intent
2001

The West Wing
1999

Cold Case
2003

Chicago Hope
1994

Without a Trace
2002

Judging Amy
1999

Private Practice
2007

American Playhouse
1982

Tales from the Crypt
1989

The Guardian
2001

Saving Grace
2007

Red Shoe Diaries
1992

Eli Stone
2008

Sports Night
1998

The American President
1995

Togetherness
2015

The Artist
2011

The Huntress
2000

Past Life
2010

Monday Mornings
2013

The Bling Ring
2013

Tucker: The Man and His Dream
1988

Tales of the City
1993

License to Drive
1988

Suicide Kings
1997

Airheads
1994

Jakob the Liar
1999

More Tales of the City
1998

Goodbye Lover
1999

Breast Men
1997

The Long Way Home
1997

Twenty Bucks
1993

Wild Orchid II: Two Shades of Blue
1991

Red Shoe Diaries 3: Another Woman's Lipstick
1993