Gretchen Mol (born November 8, 1972) is an American actress and former model. She is known for her role as Gillian Darmody in the HBO series Boardwalk Empire (2010–2014). She also appeared in the films Rounders (1998), Celebrity (1998), The Thirteenth Floor (1999), The Notorious Bettie Page (2005), in which she played the title character, 3:10 to Yuma (2007), and Manchester by the Sea (2016).
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The Invisibles
Hannah
2024

Palm Trees and Power Lines
Sandra
2023

Manchester by the Sea
Elise Henderson
2016

A Family Man
Elise Jensen
2016

Anesthesia
Sarah
2016

True Story
Karen
2015

The Final Shot: A Farewell to Boardwalk Empire
Self
2014

Laggies
Bethany
2014

Tenure
Elaine Grasso
2010

An American Affair
Catherine Caswell
2008

The Memory Keeper's Daughter
Nora Henry
2008

3:10 to Yuma
Alice Evans
2007

The Ten
Gloria Jennings
2007

American Loser
Lynn
2007

The Valley of Light
Eleanor
2007

Puccini for Beginners
Grace
2006

The Notorious Bettie Page
Bettie Page
2005

The Shape of Things
Jenny
2003

Attraction
Liz
2001

Picnic
Madge Owens
2000

Forever Mine
Ella Brice
1999

Sweet and Lowdown
Ellie
1999

Just Looking
Hedy Coletti
1999

The Thirteenth Floor
Jane Fuller
1999

New Rose Hotel
Hiroshi's Wife
1999

Finding Graceland
Beatrice Gruman
1998

Rounders
Jo
1998

Celebrity
Vicky
1998

Music from Another Room
Anna Swan
1998

The Deli
Mary
1997

The Last Time I Committed Suicide
Mary Greenway
1997

Calm at Sunset
Emily
1996

The Funeral
Helen
1996
There There

Horsegirls
Sandy
2025

Millers in Marriage
Eve
2024

American Gigolo
Michelle Stratton · (8 episodes)
2022

False Positive
Dawn
2021

Perry Mason
Linda · (5 episodes)
2020

Sequestrada
Grace
2019

The Twilight Zone
Mrs. Janet Warren · (1 episode)
2019

Nightflyers
Dr. Agatha Matheson · (10 episodes)
2018

Yellowstone
Evelyn Dutton · (2 episodes)
2018

Seven Seconds
Sam Hennessy · (3 episodes)
2018

Chance
Jaclyn Blackstone · (10 episodes)
2016

Mozart in the Jungle
Nina Robertson · (7 episodes)
2014

Boardwalk Empire
Gillian Darmody · (53 episodes)
2010

Watch What Happens Live with Andy Cohen
Self - Guest · (1 episode)
2009

Life on Mars
Policewoman Annie Norris · (17 episodes)
2008

Freshening Up
Janelle
2002

Girls Club
(9 episodes)
2002

The Magnificent Ambersons
Lucy Morgan
2002

Get Carter
Audrey
2000
Zoe Loses It
Amber
2000

Cradle Will Rock
Marion Davies
1999

Too Tired to Die
Capri
1998

Too Tired to Die
Capri (uncredited)
1998

Subway Stories
Wife (segment "Love on the A Train")
1997

Donnie Brasco
Sonny's Girlfriend
1997

Spin City
Gwen · (1 episode)
1996

Girl 6
Girl #12
1996
Rain Reign

Hallmark Hall of Fame
Emily · (1 episode)
1951

Hallmark Hall of Fame
Eleanor · (1 episode)
1951