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.
Kate Carlson
Linley Parker
Claudia Duffy
Julie Vera
Ellie Bartlet
Celia Cutler
Stella Bishop
Kathleen
Christy Wolinsky
Suzanna Clemons
Trudy
Lindsay
Katie Bochner
Mona Ramsey
Marilyn Lee
Vegas Detective (Female)
Admiring Woman
Suzzi
Beth Wade
Natalie Anderson
Rosa Frankfurter
Jennifer
Blue McDonald
(voice)
Newscaster
Upset Lady at the Convention (uncredited)
Tamsen, la fille de Rosario
Marla Obold
Miriam
Trudy (archive footage)
Bank Teller
Dr. Emerson
Prostitute
Mia Farrow
Olivia
Cassie Hillman
Jenny Todd
Betty Fuego
Angela
Karen Lundahl
Gal
Cassie Hillman
Cassie Hillman
Cassie Hillman
Roberta
Cassie Hillman
Cassie Hillman
Merilee
Jenny Sloan
Maria
Cassie Hillman
Holly Proudfit
Shelly
Leeanne Dees
Cassie
Cassie Hillman
Dolores
Cassie Hillman
Cassie Hillman