Jessalyn Gilsig (born November 30, 1971) is a Canadian actress known for her roles in the television series Boston Public, Nip/Tuck and as Will Schuester's ex-wife Terri Schuester in Glee. She has also appeared in several episodes of NYPD Blue, Prison Break, and Heroes as well as several other series. Description above from the Wikipedia article Jessalyn Gilsig, licensed under CC-BY-SA, full list of contributors on Wikipedia.
The Horse Whisperer
(Annie's Assistant Lucy)
Flood
(Sam Morrison)
Prom Night
(Aunt Karen Turner)
Jacknife
(His Girlfriend)
See This Movie
(Annie Nicole)
Quest for Camelot
(Kayley (voice))
The Stepfather
(Julie King)
About Fifty
(Jessica)
Destination: Infestation
(Dr. Carrie Ross)
A Cooler Climate
(Callie)
Chicks with Sticks
(Paula Taymore)
Smart Cookies
(Julie)
Somewhere Slow
(Anna Thompson)
Angels and Ornaments
(Corrine Nelson)
Rescue Dogs
(Sandpiper - Narrator (voice))
Fathers and Sons
(Dianne)
Backyards & Bullets
(Eileen)
The Sweetheart
(Samantha)
Cognitive
Spree
(Andrea)
Boston Public
(Lauren Davis)
Glee
(Terri del Monico)
Heroes
(Meredith Gordon)
Prison Break
(Lisa Burrows)
CSI: NY
(Jordan Gates)
Nip/Tuck
(Gina Russo)
Haunted
(Elise Martin)
Without a Trace
(Whitney Ridder)
Snoops
(Suzanne Shivers)
The Practice
Friday Night Lights
(Shelley Hayes)
Imaginary Bitches
(Jessalyn)
Seven Days
XIII
(Kim Rowland)
Young Robin Hood
(Gertrude of Griswald)
To Have & to Hold
Gulliver's Travels
(Folia)
Vikings
(Siggy Haraldson)
The Late Late Show with Craig Ferguson
(Self)
XIII: The Series
(Kim Rowland)
Vikings: Athelstan's Journal
(Siggy (archive footage))
Viper
(Alyssa)
The Good Wife
(Janie Ludwig)
Grand Hotel
(Roxanne)
Scandal
(Vanessa Moss)
Shatner's Raw Nerve
(Self)
Prison Break
(Lisa Rix)
Prison Break
(Lisa Fichs)
The Little Flying Bears
(Tina (voice))
Law & Order
(Angela Burquette)
1923
(Beverly Strafford)
Big Shot
(Holly Barrett)
The Sentinel
(RJ Shannon)