| First Name | Jessalyn |
| Middle Name | Sarah |
| Last Name | Gilsig |
| Full Name at Birth | Jessalyn SarahGilsig |
| Age | 40 |
| Date of Birth | May 26, 1971 |
| Birthplace | Montréal, Québec, Canada |
| Height | 5' 3" (160 cm) |
| Build | Slim |
| Eye Color | Blue |
| Hair Color | Brown - Light |
| Star Sign | Gemini |
| Religion | Jewish |
| Ethnicity | White |
| Nationality | Canadian |
| High School | Trafalgar, Montreal, QC |
| University | English, McGill, Montreal, QCUniversité Harvard |
| Occupation | Actress |
| Occupation Category | Actress |
| Claim to Fame | Terri Schuester in Glee, Boston Public, Nip/Tuck, NYPD Blue, Prison Break, Heroes |
| Official Website | jessalyngilsig.net |
| Father | Toby Gilsig |
| Mother | Clare Gilsig |
| Friends | Jayma Mays, Matthew Morrison |
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.
Selected Jessalyn Gilsig film and TV show credits: