Stephanie Caroline March is an American actress and activist, born on July 23, 1974, in Dallas, Texas. She is best known for her role as Assistant District Attorney Alexandra Cabot on the NBC crime drama series Law & Order: Special Victims Unit, which she played from 2000 to 2018.

Her portrayal of Cabot earned widespread acclaim and is often considered one of the best characters and acting performances in the Law & Order series. Beyond her acting career, she is recognized for her activism towards abuse victims, education, and women's rights.

Her early life was spent in Dallas, where she attended McCulloch Middle School and Highland Park High School. She developed an early interest in acting and pursued it further at Northwestern University, where she graduated in 1996.

At Northwestern, she was a member of the Kappa Alpha Theta sorority and participated in various theater productions, including playing Helena in A Midsummer Night's Dream in Chicago.

Her professional acting career began with a guest appearance on the CBS series Early Edition in 1997. She made her Broadway debut in 1999 in a production of Arthur Miller's Death of a Salesman with Brian Dennehy.

Her most significant career breakthrough came in 2000 when she was cast as ADA Alexandra Cabot on Law & Order: Special Victims Unit. Her tenure on the show spanned multiple seasons, with her character becoming a fan favorite.

Stephanie March has appeared in several films, including Head of State (2003), Mr. & Mrs. Smith (2005), Falling for Grace (2006), The Treatment (2006), Jesse Stone: Night Passage (2006), Confessions of a Shopaholic (2009), and Origin (2023).

She also executive produced and starred in the independent film The Social Ones (2019). Her continued television roles include Carol Blanton on the Adult Swim miniseries Neon Joe, Werewolf Hunter (2015), Debora Green in the Lifetime film A House on Fire (2021), and Akira on the superhero series Naomi (2022), and Angelica Wyatt in Amazon Prime's miniseries Shelter (2023).

Her personal life has garnered media attention over the years. She married celebrity chef Bobby Flay in 2005, but the couple divorced in 2015. In 2017, she married businessman Dan Benton in a ceremony in Katonah, New York.