Leslie Knipfing is the celebrity sibling of Kevin James and Gary Valentine, two well-known American actors, comedians, producers, and screenwriters.
Lesslie is a professional event manager based in the United States of America. She is also famous as the charity manager of her celebrity brother.
Informative Writer will give you more information about Leslie Knipfing’s bio, wiki, height, age, movies, family, husband, net worth, lifestyle, facts, and more.
Leslie Knipfing: Early Life & Educational Background
Leslie Knipfing was born on November 17, 1974, in Bismarck, North Dakota. Her zodiac sign is Scorpio. She is an American citizen and belongs to mixed ethnicity of German and Jewish descent. She will be 48 years old in 2022.
Leslie Knipfing’s early life has not been revealed, including where she attended school and college, what courses she took, and other such information.
Even though her eye disease, Retinitis Pigmentosa, made her childhood a little difficult, she is said to be highly educated. The condition is a rare genetic disorder that affects the eye and results in visual loss.
Leslie Knipfing: Family
Leslie was born and raised in a wealthy family. Her mother Janet Knipfing is a chiropractor’s office worker, and her father Joesph Valentine Knipfing Jr is an insurance agency owner.
She has two elder brothers Kevin George Knipfing and Gary Joseph Knipfing. They are actors, comedians, and screenwriters.
Leslie Knipfing: Career
Leslie’s brothers Kevin and Gary both pursued acting careers, improvising in comedy and skits. And she remained in low life, away from the media spotlight.
Her bad eyesight was the reason; she was unable to pursue a career in the entertainment industry.
Regardless, Leslie’s condition has been permanently cured. She has devoted a huge proportion of her life to charities and organizations that raise awareness about rare genetic eye diseases. She is currently involved in many charitable activities. She also works with her brother James to raise funds for retinitis pigmentosa charity organizations.
She has made many people happy by raising donations for numerous charities and non-profit organizations alongside her brother Kevin James.
Leslie Knipfing is known for helping her brother manage his schedule and ensure that everything works properly for him, in addition to working for charity organizations. Her brother has repeatedly expressed his gratitude for everything she does for him.
Other than bеing hеr brоthеr’s сhаritу mаnаgеr, she also manages her fаmilу’s сhаritаblе fоundаtion nаmеd thе ‘JVK Fоundаtiоn’ based in Lоs Angеlеs. It’s an nоn-рrоfіt оrgаnіzаtіоn which was fоundеd іn thе уеаr 2006.
Leslie Knipfing: Movies and TV Shows
Leslie Knipfing, unlike her two famous brothers, has never acted in movies and TV shows.
Kevin George Knipfing, aka Kevin James, is one of her brothers who has appeared in several films, including Hitch, I Now Pronounce You Chuck and Larry, Grown Ups, Zookeeper, Here Comes the Boom, Paul Blart: Mall Cop and its sequel, Pixels, Hotel Transylvania, Monster House, and others.
Her other brother, Gary Joseph Knipfing, as Gary Valentine, has also been in films such as Stuck on You, Jack and Jill, Wrong, Paul Blart: Mall Cop, Zookeeper, Home Team, The Dog Who Saved the Holidays, The Dog Who Saved Summer, and others alongside Kevin.
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Leslie Knipfing: Siblings

Kevin James also known as Kevin George Knipfing, was born on April 26, 1965, in Mineola, New York. He is an American actor, comedian, producer, and screenwriter. James made his stand-up comedy debut at the East Side Comedy Club in 1989, and he eventually came to popularity by appearing on several talk shows. In 2005, James made his cinematic debut in the romantic comedy film ‘Hitch’. In 2006, he co-starred in the comedy film ‘Grilled’. In 2007, he appeared in ‘I Now Pronounce You Chuck and Larry’, he starred in ‘You Don’t Mess with the Zohan’. His comedy film ‘Paul Blart: Mall Cop’, which opened as the #1 picture in North America, grossed $219 million in ticket and home video sales in 2009. James also appeared in the mixed martial arts comedy film ‘Here Comes the Boom’ in 2012.
He is best known for his work on ‘The King of Queens’ as Doug Heffernan He also appeared in the CBS sitcom ‘Kevin Can Wait’ for which he got a People’s Choice Award nomination in 2017. He also appeared in many hit films including Grown Ups, Zookeeper, Here Comes the Boom, and Pixels. He is also a voice-over artist and gave his voice to many animated films like Monster House, Barnyard, and the first three Hotel Transylvania films.
Leslie’s other elder brother Gary Valentine aka Gary Joseph Knipfing was born on November 22, 1961, in Mineola, New York, USA. He is also an actor, comedian, and writer from the United States.
He came to popularity after appeared in movies such as ‘Paul Blart: Mall Cop,’ ‘Paul Blart: Mall Cop 2,’ ‘Here Comes the Boom,’ and ‘I Now Pronounce You Chuck & Larry’
He also appeared as Kevin James’ cousin Danny Heffernan in The King of Queens from 1998 to 2007, and as Kyle Gable on Kevin Can Wait from 2016 to 2018. In addition, he has appeared in several Happy Madison Productions.
According to Box office records, one of his all-time blockbuster movies, ‘Paul Blart: Mall Cop,’ which was filmed with a total budget of $26 million, earned $183.3 million.
Similarly, his previous films, such as ‘Paul Blart: Mall Cop 2,’ ‘Here Comes the Boom,’ and ‘Zookeeper,’ grossed $107.6 million, $73.1 million, and $169.8 million, according to Box office records.
Aside from that, he has been in many TV shows and series, including ‘Alive N’ Kickin’,’ ‘The Dog Who Saved Christmas,’ ‘The Dog Who Saved Christmas Vacation,’ ‘Men of a Certain Age,’ and ‘Fargo.’
Leslie Knipfing: Relationship Status
According to some sources, Leslie Knipfing is currently married but there’s no information available about her husband’s name or profession. She does however share their pictures on her Instagram account. She prefers to keep her personal life private from the spotlight.

Besides, Leslie’s brother, Kevin, married her long-term girlfriend, Steffiana De La Cruz, on June 19, 2004, at St. Edward Catholic Church in Dana Point, California. The couple met on a blind date in 2001.
On the other hand, Leslie’s other elder brother, Gary Knipfing, married Jackyline Knipfing in 1993. Since they exchanged vows, the couple has been living a happy married life. However, they have yet to have a child.
Leslie Knipfing: Net Worth
Despite being the only sibling in her family who isn’t involved in the entertainment industry, Leslie stands out for her unique personality. Though most people know her for her brothers, she is also well-known for her great efforts and the charitable events she usually organizes.
According to sources Leslie lives a luxurious lifestyle and has an estimated net worth of $1.5 million as of 2022.
On the other hand, His brother Kevin James is one of the richest Hollywood stars and has an estimated net worth of $100 million as of 2022. He made the most of his wealth as an Actor, Comedian, Film Producer, Television Producer, Screenwriter, and Voice Actor in the United States.
However, Gary Valentine, Leslie’s other elder brother has a net worth of $2.5 million in 2022. He is an American actor, comedian, and writer. Gary’s humor on the big screen in Hollywood has undoubtedly gained him exceptional fame at various levels on American entertainment platforms.
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Leslie Knipfing: Social Media
Lеslie is one of those celebrities who prefer to keep her personal life private, from the media. She isn’t active on social media platforms. She does, however, have an Instagram account.

She has 145K followers and shares 2,223 posts on her Instagram account. Her username is “@mslesliebibb”.
On the other hand, her brother Kevin James has a huge fan following on his Instagram account. He has 1.8 million followers and shares 436 posts on his account as of July 2022. His Instagram handle is “@kevinjamesofficial”.
Her other elder brother is also available on social media. He has an Instagram account where he has 10.3K followers. His username is “@gary_valentine”.
Leslie Knipfing: Body Measurements
Leslie is a 47-year-old beautiful woman from the United States. She stands 5 feet 9 inches (175 cm) tall and weighs around 65 kg (143 lbs). She has beautiful light brown eyes and Blonde hair. She enjoys working out and goes to the gym regularly. Therefore, she has maintained her slim and fit body by exercising regularly and eating healthy food. Aside from this, there’s no information available about her body measurements.
Unknown Facts about Leslie Knipfing
1. Leslie Knipfing is famous for being the sister of popular actor, screenwriter, and producer, Kevin James.
2. Leslie Knipfing was born on November 17, 1974, in Bismarck, North Dakota, United States of America.
3. She suffered from an eye disease called retinitis pigmentosa in her childhood.
4. Lesslie is a professional event manager based in the United States of America.
5. She keeps her personal life private and avoids as much media attention.
Frequently Asked Questions about Leslie Knipfing
Who is Leslie Knipfing?
Leslie Knipfing is the celebrity sibling of Kevin James and Gary Valentine, two well-known American actors, comedians, producers, and screenwriters.
Lesslie is a professional event manager based in the United States of America. She was born on November 17, 1974, in Bismarck, North Dakota, United States of America. She is of German and Jewish origin. Her mother Janet Knipfing is a chiropractor’s office worker, and his father Joesph Valentine Knipfing Jr is an insurance agency owner. Her brothers are well-known, but Leslie Knipfing maintains a private life, thus nothing is known about her childhood. She suffers from Retinitis Pigmentosa, a genetic eye disease that causes visual impairment and vision loss.
She is currently involved in many charitable activities. She also works with her brother James to raise funds for retinitis pigmentosa charity organizations.
Other than bеing hеr brоthеr’s сhаritу mаnаgеr, she also manages her fаmilу’s сhаritаblе fоundаtiоn nаmеd thе ‘JVK Fоundаtiоn based in Lоs Angеlеs.
What is the age of Leslie Knipfing?
Leslie Knipfing will be 48 years old in 2022. She was born on November 17, 1974, in Bismarck, North Dakota. Her zodiac sign is Scorpio. She is an American citizen and of German and Jewish descent.
What is the net worth of Leslie Knipfing?
According to sources Leslie lives a luxurious lifestyle and has an estimated net worth of $1.5 million as of 2022.
Who is Leslie Knipfing’s husband?
Leslie Knipfing is currently married but there’s no information available about her husband’s name or profession. She does however share their pictures on her Instagram account.