Biography
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 o...
Known For
Complete Filmography

Hailey Dean Mysteries: A Will to Kill
2018
as Olivia
Emotionally ready to confront her fiancé's 15-year-old murder, Hailey finds herself caught up in the case of a missing college coed. The deeper Hailey...

The Hatred
2017
as Miriam
Four young women travel to their college professor's new country home for a weekend getaway, only to discover that the house has a malevolent past.

The Bling Ring
2013
as Vegas Detective (Female)
Inspired by actual events, a group of fame-obsessed teenagers use the Internet to track celebrities' whereabouts in order to rob their homes.

The Artist
2011
as Admiring Woman
Hollywood, 1927: As silent movie star George Valentin wonders if the arrival of talking pictures will cause him to fade into oblivion, he sparks with ...

The Haunting of Molly Hartley
2008
as Dr. Emerson
When teenage Molly Hartley moves to a new town, she's haunted by terrifying visions that may have to do with dark secrets from her past. Something evi...

Mystery Woman: In the Shadows
2007
as Cassie Hillman
While searching for a KGB double agent who was about to be exposed by another Russian spy-turned-successful author, mystery bookstore owner Samantha K...

Mystery Woman: Redemption
2006
as Cassie Hillman
Samantha Kinsey is the owner of the Mystery Woman bookstore and an expert in criminology. This time she will have to solve the murder of a war veteran...

Mystery Woman: Oh Baby
2006
as Cassie Hillman
A couple accused of a murder go on the run, leaving their baby in the care of bookshop owner & amateur sleuth Samantha Kinsey. Can Samantha look a...

Mystery Woman: Wild West Mystery
2006
as Cassie Hillman
When former TV star Clint Taylor brings his Wild West show into town, murder becomes the featured attraction for bookstore owner Samantha Kinsey. Sama...

Mystery Woman: At First Sight
2006
as Cassie Hillman
After dating hot doctor Ben, cued by Cassie, mystery woman sets out to discover in a tiny town her birth mother trough Victor Short, the diner-managin...

Mystery Woman: Game Time
2005
as Cassie Hillman
Samantha (Kellie Martin) awaits the arrival of a famous writer who will sign copies in her bookstore when, coincidentally, an old acquaintance comes w...

Mystery Woman: Vision of a Murder
2005
as Cassie Hillman
Sam lands a job photographing a new spa in Southern California for their brochure and brings her best friend Cassie along to enjoy some pampering. Whe...

Mystery Woman: Sing Me a Murder
2005
as Cassie Hillman
Murder is something to sing about when Mystery Woman Samantha Kinsey-an expert in pulp fiction, and increasingly proficient when it comes to real-life...

Mystery Woman: Snapshot
2005
as Cassie Hillman
Amateur sleuth Samantha Kinsey's latest case has her trying to figure out who killed her best friend Barbara after she was left out of her family's wi...

Mystery Woman: Mystery Weekend
2005
as Cassie Hillman
She's an avid mystery lover and bookseller, for whom crime has been comfortably confined to the pages of her favorite novels-until a real-life murder ...

A Carol Christmas
2003
as Roberta
Carol Cartman, a tempestuous talk show host, is a high-heeled, high-maintenance Scrooge. This insensitive, self-centered and stingy woman is about to ...

Sleep Easy, Hutch Rimes
2000
as Holly Proudfit
Insurance agent Hutch Rimes spends a lot of time at the Sleep Easy Hotel, taking long lurid lunch breaks with a string of sexy secretaries who he hire...

The Darkling
2000
as Marla Obold
When mechanic Jeff Obold meets the wealthy and mysterious Bruno Rubin, he is exposed for the first time to the finer things in life. But Jeff soon dis...

The Big Tease
1999
as Betty Fuego
Thinking he's competing in Los Angeles' hot Platinum Scissors contest, Scottish hairstylist Crawford leaves Glasgow with a film crew to capture the ev...

Jakob the Liar
1999
as Rosa Frankfurter
In 1944 Poland, a Jewish shop keeper named Jakob is summoned to ghetto headquarters after being caught out after curfew. While waiting for the German ...

Goodbye Lover
1999
as Newscaster
Police investigate when a man having an affair with his brother's wife disappears suddenly.

Breast Men
1997
as Upset Lady at the Convention (uncredited)
We follow the two Texas doctors who invented the modern breast implant and its surgical procedure. However, when success and money come their way, the...

Kiss & Tell
1997
as Shelly
A performance artist turns up dead with a carrot up her butt by LAX. Three detectives interview her friends to find out who killed her and why.

The Long Way Home
1997
as (voice)
The story of the post World War II Jewish refugee situation from liberation to the establishment of the modern state of Israel.

Suicide Kings
1997
as Jennifer
Carlo, a former mobster, is abducted by five privileged young men desperate to raise a $2 million ransom to save the sister of a friend. As Carlo play...

Runaway Car
1997
as Jenny Todd
A nurse apprentice, who had a bad day at work, meets a computer programmer at a car garage. The man is urged to go somewhere, but his car is not ready...

George B.
1997
as Angela
After winning money gambling in Reno, George enjoys a streak of luck that brings him happiness and success. He dates a beautiful woman and works with ...

Johns
1996
as Prostitute
It's the day before Christmas, the day before John's 21st birthday. He's a prostitute on Santa Monica Blvd in L.A., and he wants to spend that night a...

The American President
1995
as Beth Wade
Widowed U.S. president Andrew Shepherd, one of the world's most powerful men, can have anything he wants -- and what he covets most is Sydney Ellen Wa...

Power of Attorney
1995
as Maria
Mafia don Joseph Scassi is a man willing to use all of his vast resources to defend himself against an indictment for murder and extortion.

Sawbones
1995
as Jenny Sloan
A former medical intern turned sadistic killer is on the loose... and only one woman knows his true identity. Can she stop him in time before she beco...

Floundering
1994
as Gal
John Boyz lives close to where they film "Baywatch", but you'd never know it. His life is full of bizarre friends, sweaty sex, pistol wielding gangste...

Airheads
1994
as Suzzi
The Lone Rangers have heavy-metal dreams and a single demo tape they can't get anyone to play. The solution: Hijack an FM rock radio station and hold ...

Baby Brokers
1994
as Leeanne Dees
A woman (Cybill Shepherd) financially supports the natural parents in hope of adopting their newborn, but she discovers she is the victim of a scam.

Red Shoe Diaries 3: Another Woman's Lipstick
1993
as Trudy (archive footage)
Just Like That: A receptionist in a large firm cheats on her voyeuristic lover with a delivery boy who has a crush on her. Another Woman's Lipstick: A...

The Saint of Fort Washington
1993
as Tamsen, la fille de Rosario
Matthew, a young schizophrenic, finds himself out on the street when a slumlord tears down his apartment building. Soon, he finds himself in even more...

Twenty Bucks
1993
as Bank Teller
A story about the life of a twenty dollar bill as it weaves in and out of the various lives of several people.

Little Noises
1992
as Dolores
A struggling writer steals poems written by his mute friend to achieve fame and fortune.

Wild Orchid II: Two Shades of Blue
1991
as Blue McDonald
Blue is a teenage girl who lives with her Jazz playing father Ham. Ham gets very sick and dies, and now Blue must support herself somehow. Elle, the h...

Bed & Breakfast
1991
as Cassie
Life changes for three women who run a failing hotel when a mysterious man washes up at the beach.

Lost Angels
1989
as Merilee
Rich L.A. party brat Tim spins into a cycle of despair after his parents divorce, and trying to fill the void with drugs and trouble only buys him a t...

Tucker: The Man and His Dream
1988
as Marilyn Lee
Ypsilanti, Michigan, 1945. Engineer Preston Tucker dreams of designing the car of future, but his innovative envision will be repeatedly sabotaged by ...

License to Drive
1988
as Natalie Anderson
Teenager Les Anderson thinks his life can't get any worse after he flunks his driver's exam, but he's wrong. Even though he didn't receive his license...

One More Saturday Night
1986
as Karen Lundahl
The problems faced by both teenagers and adults in a small Minnesota town who are trying to get dates for a Saturday night.