Leighton Marissa Meester (born April 9, 1986) is an American actress and singer. She is mostly known for her starring role as Blair Waldorf in the teen drama series Gossip Girl (2007–12). She has also appeared in the 2010 country drama film Country Strong, the 2011 thriller The Roommate, the 2011 romantic-comedy Monte Carlo, and the comedies The Oranges (2011) and That's My Boy (2012). Meester made her Broadway debut in 2014 in Of Mice and Men. Description above from the Wikipedia article Leighton Meester, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Remember the Daze
(Tori)
The Haunting of Sorority Row
(Samantha Willows)
Date Night
(Katy)
Flourish
(Lucy Covner)
Killer Movie
(Jaynie Hansen)
Inside
(Josie)
Country Strong
(Chiles Stanton)
Hangman's Curse
(Elisha Springfield)
Drive Thru
(Mackenzie Carpenter)
The Roommate
(Rebecca Evans)
Monte Carlo
(Meg)
That's My Boy
(Jamie Martin)
The Oranges
(Nina Ostroff)
My Father's Dragon
(Sasha (voice))
The Judge
(Carla Powell)
Life Partners
(Sasha)
EXmas
(Ali)
By the Gun
(Ali Matazano)
River Wild
(Joey)
National Theatre Live: Of Mice and Men
(Curley's Wife)
Like Sunday, Like Rain
(Eleanor)
Unity
(Narrator (voice))
Going the Distance
(Amy)
Semper Fi
(Clara)
Zoolander: Super Model
(Leighton Meester (voice))
The North Wind's Gift
(Gemma)
The Big Wide World of Carl Laemke
(Tanni)
The Weekend Away
(Beth)
Boston Public
(Sarah Breen)
House
(Ali)
Numb3rs
(Karen Camden)
Veronica Mars
(Carrie Bishop)
Shark
(Megan)
Once and Again
(Amanda)
Jimmy Kimmel Live!
CSI: Miami
(Heather Crowley)
LIVE with Kelly and Mark
(Self - Guest)
The Tyra Banks Show
Entourage
(Justine Chapin)
24
(Debbie Pendleton)
Crossing Jordan
(Marie Strand)
Tarzan
(Nicki Porter)
Surface
(Savannah Barnett)
8 Simple Rules... for Dating My Teenage Daughter
(Nikki)
7th Heaven
(Kendall)
Teen Choice Awards
(Self)
Gossip Girl
(Blair Waldorf)
Secrets of a Small Town
(Kayla Rhodes)
Making History
(Deborah Revere)
How I Met Your Father
(Meredith)
The Late Late Show with James Corden
(Self - Guest)
The Last Man on Earth
(Zoe)
Law & Order
(Alyssa Turner)
Single Parents
(Angie)
The Chew
(Self)
The Orville
(Laura Huggins)
CollegeHumor Shorts
(Leighton Meester)
Good Cop/Bad Cop
(Lou)
The Bachelor
(Self)
The View
(Self)
Lights Out with David Spade
(Self - Panelist)
Late Night with Jimmy Fallon
(Self)