

Cast & creator
Best known for Law & Order: Special Victims Unit, Law & Order, Law & Order
Alison Bartlett O'Reilly (born July 14, 1971) is a New York-based actress who has portrayed Gina Jefferson on Sesame Street since 1987, and has reprised the role in various related specials, direct-to-video productions, and The Adventures of Elmo in Grouchland. Bartlett began her career as a child actress, appearing at the age of 12 as Joanne in the 1984 stage production of Landscape of The Body, co-starring Dann Florek and directed by Gary Sinise. Other stage credits include the role of Donna in the Broadway show Hurly Burly from 1985, and Off Broadway in Jersey City (1990). In September 1985, her agent presented her with a "day player role" of Gina, one of Gordon's science students. Despite "warm feelings towards the show", she passed on the part, having been convinced she'd permanently maintain her tough girl typecasting; a rejection from Sesame Street would "sting too much", and destroy its place in her mind. Her agent urged her into an audition, and she credits show director Jon Stone for seeing past her self-depreciation. In 1991, she starred in the ABC After-School Special It's Only Rock and Roll, where she met her husband to be, writer/director Harry O'Reilly; at this point, she began receiving credit on Sesame Street under her married name, Alison Bartlett O'Reilly. She also guest starred on NYPD Blue in 1995. Taking time off to have three children, O'Reilly's work was primarily limited to Sesame Street. However, in 2002, she began actively seeking other roles. In addition to appearing in the 2003 independent film Crooked Lines (directed by her husband), the actress began appearing in a variety of roles in different TV crime dramas, including the short-lived FOX series The Jury, various episodes of the Law & Order franchise, and a two episode stint on HBO's The Sopranos as Gwen McIntyre, a maternal woman who has fallen in love with an ex-con (Steve Buscemi's Tony Blundatto). In 2006, she appeared in several episodes of the FX show Rescue Me as Deb Stackhouse, the wife of a firefighter injured in a fire.
Also known as: Alison Bartlett O'Reilly, Alison Bartlett, Alison Bartlett-O'Reilly, Alison O'Reilly
42
film credits
13
television credits
55
1985–2025 · acting roles
7.1
average across scored titles
Signature credits
Across film & television
Showing 55 of 55 credits

Mrs. Cole
1999
Sergeant Haywood
1990
Officer Angela Donahue
1990
Allison Dean
2001
Hope Daniels
2001
Joan Collier
2018
Gwen MacIntyre
1999
Deb Stackhouse
2004
Rockwell Receptionist Voice (voice)
2025
Jaime
2025


Jeanie Novak
2013

Samantha
2025

Self (archive footage)
2024
Gina
1999
Gina Jefferson
1993
Angry Mom
2012
Self – Gina
1989
Gina
2019
Gina
2004

Gina
1988
Gina (archive footage)
2006
Gina
1998

Gina Jefferson
1993
Andrea
2003
Gina
1996
Angela's Mother
2018
Gina
2012
Gina (uncredited) (archive footage)
2010
Gina
1997
Gina
2004
Gina (archive footage)
1999Theresa

Gina Jefferson
2005Mom
2013
Gina Jefferson
1990Halle Angelisi
1991
Gina
2006
Gina
2015
Gina Jefferson
1998
Self
2025
Gina
2003
Candy
1985
Sara Jameson
2004
Gina

Wife
2006

Gina Gefferson
2003
Gina
2005
Gina
2010