Amanda Peet (born January 11, 1972) is an American actress, writer and producer. She began her career with small parts on television, and made her feature film debut in Animal Room (1995). Her portrayal of Jill St. Claire in The Whole Nine Yards (2000) brought her wider recognition, and she has since appeared in a variety of films, such as Saving Silverman (2001), High Crimes; Changing Lanes; Igby Goes Down (all 2002), Something's Gotta Give (2003), Identity (2003), Melinda and Melinda (2004), A Lot Like Love (2005), Syriana (2005), Battle for Terra (2007), Martian Child (2008), The X-Files: I Want to Believe (2008), Please Give (2010), Gulliver's Travels (2010), The Way, Way Back (2013), Identity Thief (2013), and Trust Me (2013).
On television, Peet starred as Jacqueline Barrett on The WB's Jack & Jill (1999–2001), as Tina Morris on HBO's Togetherness (2015–2016), as Jules on IFC's Brockmire (2016–2020), and as Betty Broderick on the second season of Dirty John in 2020. She wrote and co-executive produced the Netflix series The Chair that was released in 2021.
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Your Friends & Neighbors
Mel · (9 episodes)
2025
Fantasy Life
2025
Fatal Attraction
Beth Gallagher · (8 episodes)
2023
Who Wants to Be a Millionaire
Self - Contestant · (2 episodes)
2020
The Kelly Clarkson Show
(1 episode)
2019
Dirty John
Betty Broderick · (8 episodes)
2018
The Romanoffs
Olivia Wells · (1 episode)
2018
Brockmire
Jules James · (20 episodes)
2017
The Atheist Delusion
Self (archive footage)
2016
The 4%: Film's Gender Problem
Self
2016
The Late Show with Stephen Colbert
Self · (1 episode)
2015
Sleeping with Other People
Paula
2015
Togetherness
Tina Morris · (16 episodes)
2015
Late Night with Seth Meyers
Self · (2 episodes)
2014
The Way Way Back
Joan
2013
Trust Me
Marcy
2013
Identity Thief
Trish Patterson
2013
Bent
Alex Meyers · (6 episodes)
2012
Gulliver's Travels
Darcy Silverman
2010
Quantum Quest: A Cassini Space Odyssey
Ranger (voice)
2010
Please Give
Mary
2010
2012: Roland Emmerich - Master of the Modern Epic
Self
2010
The End of the World: The Actor's Perspective
Self
2010
2012
Kate Curtis
2009
The Good Wife
Laura Hellinger · (7 episodes)
2009
Watch What Happens Live with Andy Cohen
Self - Guest · (5 episodes)
2009
Late Night with Jimmy Fallon
Self - Guest · (1 episode)
2009
Important Things with Demetri Martin
Actress · (17 episodes)
2009
What Doesn't Kill You
Stacy Reilly
2008
$5 a Day
Maggie
2008
The X Files: I Want to Believe
ASAC Dakota Whitney
2008
Martian Child
Harlee
2007
Battle for Terra
Maria Montez (voice)
2007
The Ex
Sofia Kowalski
2006
Studio 60 on the Sunset Strip
Jordan McDeere · (22 episodes)
2006
Griffin & Phoenix
Sarah Phoenix
2006
Syriana
Julie Woodman
2005
The Reichen Show
Self · (1 episode)
2005
How I Met Your Mother
Jenkins · (1 episode)
2005
A Lot Like Love
Emily Friehl
2005
Melinda and Melinda
Susan
2004
Entourage
(1 episode)
2004
The Whole Ten Yards
Jill St. Claire
2004
Uta Hagen's Acting Class
Self
2004
Something's Gotta Give
Marin
2003
The Ellen DeGeneres Show
Self · (2 episodes)
2003
Identity
Paris
2003
Whatever We Do
Patty
2003
Igby Goes Down
Rachel
2002
Changing Lanes
Cynthia Delano Banek
2002
High Crimes
Jackie
2002
Saving Silverman
Judith Fessbeggler
2001
Two Ninas
Nina Harris
2000
Whipped
Mia
2000
Takedown
Karen
2000
The Whole Nine Yards
Jill St. Claire
2000
Isn't She Great
Debbie
2000
Zoe Loses It
Zoe
2000
Body Shots
Jane Bannister
1999
Jack & Jill
Jacqueline 'Jack' Barrett · (32 episodes)
1999
Jump
Lisa
1999
Simply Irresistible
Chris
1999
Playing by Heart
Amber
1998
Ellen Foster
Julia Hobbs
1998
Southie
Marianne Silva
1998
Origin of the Species
Julia
1998
Touch Me
Bridgette
1997
1999
Nicole
1997
The View
Self · (1 episode)
1997
Grind
Patty
1997
Finishing The Novel
Wife
1997
One Fine Day
Celia
1996
Spin City
Shelly · (1 episode)
1996
She's the One
Molly
1996
The Single Guy
Kathy · (1 episode)
1995
Central Park West
(3 episodes)
1995
Animal Room
Debbie
1995
Late Night with Conan O'Brien
Self - Guest · (4 episodes)
1993
Late Show with David Letterman
(1 episode)
1993
Law & Order
Leslie Harlan · (1 episode)
1990
Seinfeld
Lanette · (1 episode)
1989
LIVE with Kelly and Mark
Self - Guest · (3 episodes)
1988