Dagmara Domińczyk (doh-MEEN-chik, born July 17, 1976) is a Polish-American actress and author. She's best known for her roles as Mercedès Iguanada in The Count of Monte Cristo (2002), Tania Asher in Rock Star (2001), Agnes Gebhard in Kinsey (2004), Marguerite in The Five People You Meet in Heaven (2004), Katrina on WB's The Bedford Diaries, Suzanne in Running with Scissors (2006), Belva in The Immigrant (2013), Elizabeth Taylor in Big Stone Gap (2013), Stacy in Let's Kill Ward's Wife (2014), Karolina Novotney on HBO's Succession, Ellen in The Assistant (2020), Erika Jensen on HBO's We Own This City (2022), and Elle Sellwyn on AppleTV's Hello Tomorrow! (2023).
In 2013, she released her novel The Lullaby of Polish Girls.
She has been married to actor Patrick Wilson since 2005 and they have two sons. Her sisters are actress Marika Domińczyk and actress Veronika Domińczyk.
Known For
Lonely Hearts
Delphine Downing
2006
Felix the Painter
Brigitte
Goodnight
2025
Travel Essentials
Ada Rosińska
2024
F*ck That Guy
2024
Miller's Girl
Beatrice June Harker
2024
Priscilla
Ann Beaulieu
2023
Bottoms
Mrs. Callahan
2023
Insidious: The Red Door
Priest (voice)
2023
My Love Affair with Marriage
Zelma (voice)
2023
Hello Tomorrow!
Elle Sellwyn · (5 episodes)
2023
We Own This City
Erika Jensen · (6 episodes)
2022
The Lost Daughter
Callie
2021
American Horror Stories
Anka Kieslowski · (1 episode)
2021
Abe
Rebecca
2020
The Assistant
Ellen
2020
Prodigal Son
The Nightingale · (1 episode)
2019
Succession
Karolina Novotney · (34 episodes)
2018
The Deuce
Genevieve Furie · (1 episode)
2017
A Woman, a Part
Nadia Audali
2017
Let's Kill Ward's Wife
Stacy
2014
Big Stone Gap
Elizabeth Taylor
2014
Jack Strong
Sue
2014
The Immigrant
Belva
2013
Phantom
Sophi
2013
The Letter
Elizabeth
2012
Person of Interest
Sarah Jennings · (1 episode)
2011
Higher Ground
Annika
2011
Suits
Nancy · (1 episode)
2011
Helena from the Wedding: Cast Interviews
Self
2011
Helena from the Wedding
Eve
2010
Boardwalk Empire
Dinah Linehan, prostitute who robs Nucky · (1 episode)
2010
The Good Wife
Isabel Sharp · (1 episode)
2009
Prisoner
Olivia
2007
Running with Scissors
Suzanne
2006
Mentor
Julia
2006
The Bedford Diaries
Katrina · (4 episodes)
2006
Trust the Man
Pamela
2005
Hitched
Amber
2005
The Five People You Meet In Heaven
Margeurite
2004
Tough Luck
Divana
2004
Kinsey
Agnes Gebhard
2004
Bad Apple
Gina
2004
They
Terry Alba
2002
The Count of Monte Cristo
Mercedes Iguanada
2002
Keeping the Faith
Claire
2000
Surgat
Rock Star
Tania Asher, Steel Dragon PR
2001
Tonight at Noon
Sally
Third Watch
Jeneca Farabee · (2 episodes)
1999
Law & Order: Special Victims Unit
Kate Logan · (1 episode)
1999
The Savant
(1 episode)