Leslie knipfing: Bio, Age, Movies, Net Worth, Husband And Other Details

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Leslie knipfing
Leslie knipfing

Leslie Knipfing gained a lot of attention primarily because she’s the sister of well-known actors Kevin James and Gary Valentine. However, there’s been quite a mix-up in her online presence due to some confusion stirred up by tabloids.

Who is Leslie Kinpfing

Leslie Knipfing has eschewed the glitter and sparkle of Hollywood, despite being the sister of well-known actors and comedians Kevin James and Gary Valentine. Her attention is instead directed toward using philanthropy to change the world.

Her ties to the JVK Foundation, established by her brother Kevin James, are profound. Managing events and even dabbling in journalism for the Marvel Cinematic Universe, Leslie’s commitment to charitable work stems from her own struggles with retinitis pigmentosa, a genetic eye condition she’s battled since childhood.

Driven by her personal experiences, Leslie dedicates herself to supporting children with special needs. Through her efforts, she raises funds and orchestrates charity events benefiting institutions like Columbia University Medical School and New York Presbyterian Hospital.

Despite her siblings’ fame, Leslie prefers a more private existence. Raised in Mineola, New York, in a working-class family, she holds tight to her Catholic faith. The passing of her father, Joseph Valentine, in 2006 due to heart disease, further strengthened her resolve to make a positive impact.

Challenges haven’t been scarce for Leslie, as she confronts the hurdles of living with retinitis pigmentosa. Yet, alongside Kevin, she works tirelessly to fundraise for organizations aiding those affected by the same condition.


Full NameLeslie Knipfing
Nick NameLeslie
ProfessionCharity Event Manager, Actress
BirthdateNovember 17th, 1974
BirthplaceKevin James’s Sister
Famous forBeing Kevin James’s Sister
Zodiac SignScorpio
CasteSoon to be Updated
Current ResidenceNorth Dakota

Early Life Leslie Kinpfing

Leslie Knipfing was born in Mineola, New York, on November 17, 1974. She is related to well-known comedians and actors Kevin James and Gary Valentine.

She proudly embraces her American nationality and finds solace in her Christian faith.

While Kevin and Gary made waves in the entertainment industry with their roles in “The King of Queens,” Leslie chose a different path, one focused on giving back.

In her upbringing, her mother Janet found fulfillment in her work at a chiropractor’s office, while her father Joseph Valentine Knipfing made his mark as the owner of an insurance agency.

Leslie’s heart beats for philanthropy. Through her efforts, she raises funds and orchestrates events to support institutions like Columbia University Medical School and New York Presbyterian Hospital, embodying the spirit of generosity and compassion.

Leslie Kinpfing Age

In 2023, Leslie Knipfing is about 48 years old, given her birthdate on November 17, 1974. Her unwavering dedication to philanthropy and charity work speaks volumes about her compassionate spirit and determination to leave a meaningful mark on the world.

Leslie Kinpfing Height and Weight

Leslie Knipfing’s height is approximately 175 cm, or 1.75 meters, at 5 feet 9 inches. She is roughly sixty kilograms, or one hundred and thirty pounds.

What sets Leslie apart are her distinct features—a lovely oval-shaped face framed by blonde hair and complemented by pale eyes. It’s these unique traits that make her easily recognizable and memorable.


Janet Knipfing and Joseph Valentine Knipfing Jr. are the parents of Kevin James. Because of her brother Kevin James, a well-known American actor and comedian, Leslie Knipfing has a large following. On January 30, 2006, Joseph Valentine Knipfing Jr., their father, passed away. The name of Leslie’s mother is Janet Knipfing.

Out of her three siblings, Leslie Knipfing is the youngest. Her older brothers, Kevin James and Gary Valentine, both pursued professions in acting and comedy, therefore she was born into a family of artists. Their appearances in a plethora of comedic TV series and films have made people chuckle all over the world.

Leslie Knipfing Brother

Leslie Knipfing and her brothers Kevin and Gary make up a dynamic trio of siblings. With their popular show “The King of Queens,” they have gained popularity and brought joy into many households.

Steffiana de la Cruz is Leslie’s sister-in-law; the two were married in 2004 to Leslie’s elder brother, Kevin James. Steffiana’s acting prowess is seen in parts such as her standout portrayal in “Paul Blart: Mall Cop.”

Leslie Kinpfing Career

Leslie Knipfing’s journey with the JVK Foundation runs deep, fueled by her personal battles. Living with retinitis pigmentosa since childhood, she intimately understands the challenges faced by those with special needs, especially children.

While her brothers Kevin James and Gary Valentine bask in the limelight of their comedic careers, Leslie opts for a quieter existence. Despite their fame from “The King of Queens,” Leslie prefers to steer clear of the public eye, cherishing her privacy above all else.

Leslie Kinpfing Husband

Leslie Knipfing is still single and has no romantic relationships as of 2023. There are few data available regarding her romantic life because she places a high priority on her privacy. Leslie would probably keep it a secret even if she was married in order to preserve the secrecy surrounding her private life.

Leslie Kinpfing Net Worth

Leslie Knipfing is expected to have a net worth of $1.5 million as of 2023, mostly from her career. Her diverse career spans event management and journalism, including notable work with the Marvel Cinematic Universe.

Motivated by her individual encounters, Leslie’s commitment to altruism is profound. Even though she is wealthy, she finds satisfaction in using generosity to improve the lives of others.

Movies and TV Shows

In addition to managing charitable events, she appeared in a number of well-known films, including the following.

  • Here Comes the boom
  • Grown Ups 2
  • Kevin can wait
  • True memories of an international Assassin
  • Zookeeper
  • King of Queens

Social Links

Social Media PlatformUsername


  • Birth: Leslie Knipfing was born on November 17, 1974, in Mineola, New York.
  • Family: She is the sister of well-known actors and comedians Kevin James and Gary Valentine. Her parents are Janet and Joseph Valentine Knipfing Jr.
  • Career: Leslie is a charity event manager and actress, known for her work with the JVK Foundation and the Marvel Cinematic Universe.
  • Personal Life: Leslie remains single and values her privacy, keeping her romantic life out of the public eye.
  • Net Worth: As of 2023, her estimated net worth is $1.5 million, largely from her professional endeavors.
  • Appearance: Leslie is approximately 5 feet 9 inches tall, with blonde hair, pale eyes, and an oval-shaped face.
  • Philanthropy: Her dedication to charity stems from her own struggles with retinitis pigmentosa, a genetic eye condition she has had since childhood.


Leslie Knipfing, born into a family of entertainers, has made her mark through philanthropy and charity work, despite being overshadowed by her famous siblings. Her involvement with the JVK Foundation and her commitment to supporting children with special needs highlight her compassionate nature. Leslie’s privacy and dedication to making a positive impact on others set her apart in the entertainment industry.


Is Leslie Knipfing married?

No, Leslie Knipfing is currently single and keeps her romantic life private.

What is Leslie Knipfing’s net worth?

Leslie Knipfing’s estimated net worth is $1.5 million as of 2023.

What is Leslie Knipfing’s profession?

Leslie Knipfing is a charity event manager and actress, known for her philanthropic work and involvement with the JVK Foundation.

What is Leslie Knipfing’s height and weight?

Leslie Knipfing stands at approximately 5 feet 9 inches tall and weighs around 60 kilograms or 132 pounds.

What are Leslie Knipfing’s notable movies and TV shows?

Some of Leslie Knipfing’s notable appearances include “Here Comes the Boom,” “Grown Ups 2,” “Kevin Can Wait,” and “Zookeeper.” She also appeared in the popular TV show “King of Queens.”

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