What is Jill Hennessy's net worth?
Jill Hennessy is a Canadian actress, musician, writer, and director who has a net worth of $6 million.
Jill Hennessy is best known for playing Assistant District Attorney Claire Kincaid on "Law & Order" and Dr. Jordan Cavanaugh on "Crossing Jordan." With a career that spans network dramas, independent films, music, and stage work, Hennessy became one of the most recognizable television actresses of the 1990s and 2000s. Her breakthrough on "Law & Order" came during a pivotal period in the show's evolution, and her three-season run helped establish the female prosecutor role as one of the franchise's enduring staples. She later carried her own prime-time drama with "Crossing Jordan," playing a brilliant but emotionally complicated medical examiner for six seasons. Outside of television, Hennessy has appeared in films including "Dead Ringers," "RoboCop 3," "Chutney Popcorn," "Lymelife," and "Standing Up, Falling Down." She has also released original music, written and co-directed an independent film, and maintained a varied career that blends mainstream television visibility with more personal creative projects.
Early Life
Jillian Noel Hennessy was born on November 25, 1968, in Edmonton, Alberta, Canada. She was raised in a family with Irish, Italian, Swedish, French, and Ukrainian ancestry. Her parents separated when she was young, and she and her identical twin sister, Jacqueline, were partly raised by their grandmother.
Hennessy grew up in Canada and developed an early interest in performance, music, and languages. She became multilingual and has been credited with speaking several languages, including English, French, Italian, Spanish, and German. Her twin sister Jacqueline also worked in entertainment, including as a journalist and television host.
Before becoming a familiar television face in the United States, Jill moved to New York City and pursued acting seriously. Her early career included stage work, small film roles, and the kind of unpredictable auditions that define the early years of many actors' careers.
Early Acting Career
Hennessy's first film credit came in David Cronenberg's 1988 psychological thriller "Dead Ringers," in which she and her twin sister played twin call girls. She later appeared on Broadway in "Buddy: The Buddy Holly Story," showing an early ability to move between acting and music.
In 1993, she appeared in the sci-fi action sequel "RoboCop 3" as Dr. Marie Lazarus. That same year, she landed the role that changed her career when she joined "Law & Order."
Law & Order
Hennessy joined "Law & Order" in 1993 during the show's fourth season as Assistant District Attorney Claire Kincaid. Her character worked alongside Executive Assistant District Attorney Jack McCoy, played by Sam Waterston, and became one of the show's defining prosecutors of the 1990s.
At the time, "Law & Order" was still growing into the institution it would later become. Hennessy's arrival, along with S. Epatha Merkerson joining as Lieutenant Anita Van Buren, helped reshape the cast and bring new energy to the series. Hennessy stayed with the show through season six, and Claire Kincaid's death in a car accident became one of the series' most memorable exits.
The role gave Hennessy national exposure and established her as a serious dramatic actress. Decades later, Claire Kincaid remains one of the most fondly remembered characters in the long-running franchise.

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Crossing Jordan
After leaving "Law & Order," Hennessy continued building a varied film and television career before landing the lead role in "Crossing Jordan." The NBC drama premiered in 2001 and starred Hennessy as Dr. Jordan Cavanaugh, a brilliant Boston medical examiner with a troubled past and a rebellious streak.
"Crossing Jordan" became Hennessy's signature starring vehicle. The show blended forensic mystery, police procedural, family drama, and character-driven storytelling. Hennessy's performance gave the series its center, with Jordan portrayed as smart, impulsive, haunted, and deeply committed to solving the cases that came through the medical examiner's office.
The series ran for six seasons, ending in 2007. For many viewers, it cemented Hennessy as one of the most recognizable crime-drama actresses of her era.
Film and Television Work
In addition to her two best-known television roles, Hennessy has maintained a long list of screen credits. Her film work includes "I Shot Andy Warhol," "A Smile Like Yours," "Most Wanted," "Chutney Popcorn," "Autumn in New York," "Exit Wounds," "Love in the Time of Money," "Lymelife," "Small Town Murder Songs," "Roadie," and "Standing Up, Falling Down."
She also co-wrote and co-directed the 2000 mockumentary "The Acting Class," an independent film about a dysfunctional acting class. The project reflected her interest in working behind the camera as well as in front of it.
On television, Hennessy has appeared in shows including "The Good Wife," "Madam Secretary," "The Blacklist," "Shots Fired," "Bull," "Yellowstone," "City on a Hill," and "Accused." She also starred in the HBO horse-racing drama "Luck" and the international police drama "Jo."
Music Career
Hennessy is also a singer-songwriter and guitarist. Music has been part of her life for decades, and she has performed live in addition to releasing original material.
Her debut album, "Ghost in My Head," was released in 2009. The album introduced her as a rootsy, introspective songwriter with a sound influenced by folk, rock, and Americana. She followed it with "I Do" in 2015. Her music career has remained independent and personal rather than a celebrity side project built around mainstream pop ambitions.
Hennessy's musical work has allowed her to express a different side of her creativity, separate from the procedural dramas and film roles that made her famous.
Personal Life
Jill Hennessy married actor and restaurateur Paolo Mastropietro in 2000. The couple later had a second ceremony at New York City Hall in 2001, officiated by Mayor Rudy Giuliani. They have two sons, Marco and Gianni.
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