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Leslie Knipfing – The Sister Of Kevin James

In the world of entertainment, Kevin James is a familiar face known for his funny movies and TV shows. But did you know about his sister, Leslie Knipfing? 

Leslie may not be as famous as her brother, but she plays an important role in his life. Leslie is Kevin James’s sister, and although she stays out of the limelight, she’s a supportive sibling who shares a close bond with her brother. 

In this article, we will take a closer look at Leslie Knipfing and her connection to the comedy superstar, Kevin James.

Who Is Leslie Knipfing?

Leslie Knipfing, born November 17, 1974, in Mineola, New York, USA, is a well-known American actress and producer. Her family includes her brothers, Kevin James, a famous comedian, actor, and writer, and Gary Valentine. 

Leslie has appeared in numerous films throughout her career and has also taken on the producer role. She has played a significant part in supporting her brothers in the film industry, as Kevin James is renowned for his work as both a writer and actor, having penned many successful films. 

While some may attribute Leslie’s fame to her brothers’ success, she has carved out her own path in the industry, producing her movies today.

Name Leslie Knipfing
Date of Birth 17 November 1974
Birth Place Mineola, New York, USA
Age 49 Years (As of 2023)
Famous As Actor and Producer
Nationality American
Religion Christian
Ethnicity American White
Zodiac Scorpio
Gender Male
Height 5 Feet 9 Inches (Approx.)
Weight 65 KG (Approx.)
Eye Color Pale
Hair Color Blonde
School Not Revealed
College Not Revealed
Highest Qualification Gradated
Marital Status Unmarried
Husband Name No
Children No
Father Name Joseph Valentine Knipfing Jr
Mother Name Janet Knipfing
Brother Name Kevin George Kinpfing ,Gary Joseph Kinpfing
Net Worth $1.5 Million

Leslie Knipfing Early Life

Leslie Knipfing had an excellent start to life. She was born in Mineola, New York, USA. Her parents, Joseph Valentine and Janet Knipfing, were successful in their careers. Her dad ran an insurance agency, while her mom worked as a chiropractor. Leslie grew up surrounded by love and support from her family, including her brothers, Kevin James and Gary Valentine.

Even from a young age, Leslie was known for her beauty and charm. She enjoyed a happy childhood filled with laughter and memories with her siblings. Growing up in Mineola gave Leslie a strong foundation for her future endeavors.

Leslie Knipfing Career

Leslie Knipfing’s journey in the film industry has been quite fascinating. Inspired by her brother’s film involvement, she pursued a career in the same field. Her professional journey commenced in 1990, when she initially worked as an assistant on various TV shows and movies.

Her on-screen debut happened through the film “Mall Cop” in 2009, which starred her brother, Kevin James. Following this, she appeared in several other films, such as ‘Zookeeper’ (2011), ‘Here Comes the Boom’ (2012), and ‘Grown Ups 2’ (2013).

Besides acting, Leslie also delved into the realm of film production. She notably served as a producer for many of her brother’s movies. One of her notable productions includes the comedy film “Paul Blart: Mall Cop 2” in 2015, featuring Kevin James in the lead role. Over time, she has accumulated a substantial list of films she’s produced, showcasing her versatility and commitment to the industry.


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Leslie Knipfing Family

Leslie Knipfing comes from a loving family with her parents and two brothers. Her dad’s name is Joseph Valentine, and her mom is Janet Knipfing. She has two brothers named Kevin James and Gary Valentine. Leslie values her family and likes to keep her personal life private, including her marital status, as she’s not married yet.

Leslie Knipfing Movies

  • Here Comes the Boom
  • Paul Blart: Mall Cop
  • Zookeeper
  • Hitch
  • Pixels
  • Barnyard
  • Early life
  • Born
  • Dallas
  • Deputy Knudsen
  • Jack and Jill

Who Is Kevin James?

Kevin James, born Kevin George Knipfing, is an American comedian and actor known for his portrayal of Doug Heffernan in the sitcom “The King of Queens” and his roles in several comedies. Here’s a summary of his career:

Stand-up and Early Career

  • Began his career in the 1980s performing stand-up comedy in clubs on Long Island, New York.
  • Gained recognition with appearances on shows like “The New Candid Camera” and “An Evening at the Improv.”
  • Guest-starred on sitcoms like “Everybody Loves Raymond” before landing his breakout role.

Television Success

  • Starred in the CBS sitcom “The King of Queens” from 1998 to 2007, playing working-class husband Doug Heffernan.
  • Earned a Primetime Emmy Award nomination for Outstanding Lead Actor in a Comedy Series in 2006.

Film Career

  • Transitioned to film with roles in comedies like “50 First Dates” (2004), “Hitch” (2005), and “Grown Ups” (2010 and 2013).
  • Headlined films like “Paul Blart: Mall Cop” (2009) and its sequel, “Zookeeper” (2011), and “Here Comes the Boom” (2012).

Present Day

  • Continues to act, with recent credits including the Netflix comedy series “Kevin Can Wait” (2017-2018) and the film “Home Team” (2022).
  • Also remains active in stand-up comedy.

Leslie Knipfing Net Worth

Leslie Knipfing is a person who organizes events to help charities. She works closely with her brother in managing his organization. Because of her hard work, Leslie has accumulated a net worth of around $1.5 million. Besides her own earnings, Leslie comes from a family that is well-off, so she never has to worry about financial struggles.

Leslie Knipfing


Leslie Knipfing’s journey as the sister of Kevin James has been one of quiet support and steadfast dedication. Despite not being in the limelight, Leslie has played a significant role in her brother’s life and career. 

Through her love, encouragement, and behind-the-scenes contributions, she has helped Kevin navigate the challenges of fame and success. While Leslie may not seek recognition, her impact on Kevin’s life is undeniable. 

As we reflect on their relationship, we’re reminded of the importance of family bonds and the power of unconditional support. Leslie Knipfing stands as a testament to the profound influence a sister can have, even beyond the glare of Hollywood’s lights.


What is Leslie Knipfing’s profession?

Leslie Knipfing is recognized in the entertainment industry primarily as the sister of renowned Hollywood actors. She is also known to work as a charity event manager.

Who is Leslie Knipfing?

Leslie Knipfing is the sister of actor Kevin James. She is also the sister of another actor, Gary Valentine, who is Kevin James’s older brother.

Is Leslie Knipfing currently dating anyone?

Leslie Knipfing is known for her beauty and charm. However, details about her romantic life are scarce. Information regarding her personal relationships, including any romantic involvements, is notably private and not readily available.

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