Who Is Kevin James’ Daughter Sienna-Marie James? Her Life and Acting Journey

Sienna-Marie James grew up with a famous last name, but she has slowly started building her own path. She is the eldest daughter of actor and comedian Kevin James and actress Steffiana de la Cruz. Over the years, she has appeared in movies, television shows, and live theater while keeping much of her personal life private.

Born in 2005, Sienna-Marie James has already gained experience both on screen and on stage. She has appeared in some of her father’s projects and has also studied acting outside Hollywood. She is also known for her interest in kickboxing. Here is a closer look at her early life, family, siblings, and acting journey.

Sienna-Marie James’s Quick Bio

Who Is Sienna-Marie James?

Sienna-Marie James is the oldest child of Kevin James and Steffiana de la Cruz. She became known to the public mainly because of her famous parents, but she has also earned several acting credits of her own. Her early work includes roles in movies connected with her father’s long career in comedy.

Unlike some celebrity children who stay completely away from entertainment, Sienna-Marie has shown a clear interest in performing. She has worked in movies, appeared on television, and taken part in stage shows. At the same time, she has never tried to turn her private life into a major part of her public image.

Her acting work is still limited compared with her father’s long career, so it would be too early to call her a major Hollywood actress. Still, her screen appearances and theater training show that acting has been more than a one-time experience for her.

Sienna-Marie James’ Age and Birthday

Sienna-Marie James was born on September 30, 2005. As of August 2026, she is 20 years old and will turn 21 in September. She was born a little more than a year after Kevin James and Steffiana de la Cruz married in June 2004.

Some older reports gave less exact information about her birth and even placed it in October 2005. However, newer reports give September 30 as her birthday. She is the first of Kevin and Steffiana’s four children and was the child who first introduced Kevin to life as a father.

Sienna-Marie spent much of her childhood during a busy time in her father’s career. Kevin was already widely known for The King of Queens, and his movie career continued to grow while his family expanded. This meant Sienna-Marie grew up around movie sets and the entertainment world from an early age.

Sienna-Marie James’ Parents

Sienna-Marie’s father, Kevin James, is an actor and comedian best known for playing Doug Heffernan on The King of Queens. He later became known for movies such as Paul Blart: Mall Cop, Grown Ups, Zookeeper, Pixels, and several other family comedies.

Her mother, Steffiana de la Cruz, has also worked as an actress. Kevin and Steffiana reportedly met on a blind date and later married on June 19, 2004. Their marriage came before the birth of Sienna-Marie, followed by three more children over the next several years.

Having two parents with acting experience gave Sienna-Marie an early connection to entertainment. Still, Kevin and Steffiana have generally avoided sharing too much about their children’s private lives. Their children have appeared in public projects, but the family has kept many personal details away from constant media attention.

Growing Up as Kevin James’ Eldest Daughter

Becoming Sienna-Marie’s father was a major change in Kevin James’ life. He has spoken openly about how nervous he felt when he became a parent for the first time. He once joked that after leaving the hospital with his first baby, he drove extremely carefully because he was afraid of doing anything wrong.

Kevin has also described how strongly he felt about becoming a father. As Sienna-Marie and her siblings grew up, family life began to shape some of his career choices. In a 2012 interview with CNN, he explained that he wanted to make movies he could feel comfortable watching with his children.

His children also became part of his comedy. While talking about Kevin Can Wait in 2016, Kevin joked that he had been raising his four children for comedy. Real family moments gave him ideas, while Sienna-Marie and some of her siblings later appeared in projects connected to him.

Sienna-Marie also grew up around other famous entertainment families. Kevin James has been a longtime friend and co-star of Adam Sandler, and Sienna-Marie spent time with Sandler’s daughter, Sadie, when they were very young. Kevin said the girls played together and that the two families enjoyed spending time together.

Sienna-Marie James’ Brothers and Sisters

Sienna-Marie is the oldest of four children. Her first younger sister, Shea Joelle James, was born on June 14, 2007. Kevin has said that Shea’s name was inspired by Shea Stadium, the former home of the New York Mets, showing his well-known love of the team.

Her younger brother, Kannon Valentine James, was born on April 24, 2011. He is Kevin and Steffiana’s only son. The name Valentine has a family connection because Kevin’s late father was Joseph Valentine Knipfing Jr., while his older brother performs under the name Gary Valentine.

The youngest child is Sistine Sabella James, who was born in January 2015. Like Sienna-Marie, her siblings have sometimes joined their father in entertainment projects. Shea, Kannon, and Sistine all appeared in Hubie Halloween, and the four children later took part in a family stage production.

The siblings have also explored different creative interests. Kevin once said some of his children enjoyed animation, drawing, and editing rather than simply wanting to stand in front of a camera. Their shared stage experience later showed that performing could also be something the family enjoyed together.

How Sienna-Marie James Started Acting

Sienna-Marie James began appearing on screen while she was still a child. One of her earliest known acting credits came in 2015, when she appeared in Paul Blart: Mall Cop 2. The comedy starred her father, giving her an early chance to experience professional film work in a familiar setting.

She later appeared in other projects connected to Kevin James, including Pixels and Hubie Halloween. These were small parts rather than major leading roles, but they helped build her early screen experience. She also moved into television, showing that her interest in acting was not limited to one childhood appearance.

Her acting journey later became even more interesting when she began performing on stage. That part of Sienna-Marie James’ story shows that she did more than simply visit her father’s movie sets, and it leads naturally into her television roles, theater training, and work in Oliver!.

Sienna-Marie James’ Movies and TV Roles

Sienna-Marie James has appeared in several movies connected to her father’s career. Her known film work includes Paul Blart: Mall Cop 2, Pixels, and Hubie Halloween. These were small roles, but they gave her a chance to learn how movie sets work while she was still young.

She also appeared on Kevin James’ sitcom Kevin Can Wait. Sienna-Marie played a character named Cecilia. Her younger sister Shea also appeared on the show, and the sisters were seen as trick-or-treaters in a Halloween episode where Kevin’s house was egged.

Most of Sienna-Marie’s screen roles have been linked to projects involving her father. For that reason, it is better to describe her as someone with early acting experience rather than a full-time Hollywood actress. Still, her work in both movies and television shows that she became comfortable performing in front of a camera.

Sienna-Marie James’ Stage Acting Journey

Sienna-Marie’s interest in acting also moved beyond movie sets. She studied acting at the Cultural Arts Playhouse on Long Island, New York. This is an important part of her story because it shows she took part in acting training and live theater instead of relying only on family movie appearances.

She reportedly performed in a stage production of Les Misérables. According to a report later shared by PEOPLE, Kevin James watched his daughter perform and became interested in joining a theater production himself. He later asked about auditioning at the same playhouse.

That led to a family performance of the musical Oliver! in 2022. Kevin was cast as Fagin, while Sienna-Marie played the Artful Dodger. Her brother Kannon played Oliver Twist, Shea played Bet, and Sistine appeared as Nipper.

Playing the Artful Dodger gave Sienna-Marie a much bigger stage task than her short movie appearances. Live theater requires learning lines, timing, movement, and performing in front of an audience without another take. Her theater work therefore gives a clearer look at her real interest in acting.

Sienna-Marie James and Kickboxing

Acting is not Sienna-Marie James’ only known interest. Kevin James has also spoken about his eldest daughter’s love of kickboxing. He described her as strong and jokingly called her the tough one among his daughters.

Kevin told PEOPLE that Sienna-Marie could “put a hurting on you,” clearly making a light joke about how strong she had become through kickboxing. His comments showed that she had an athletic side from a young age.

There is no clear public proof that Sienna-Marie has competed as a professional kickboxer. It is safer to describe kickboxing as one of her known hobbies or sports interests. Still, it adds another interesting side to her life beyond acting and growing up in a famous family.

Her Friendship With Adam Sandler’s Daughter

Sienna-Marie also had a childhood connection with another famous Hollywood family. Kevin James and Adam Sandler have been close friends and have worked together many times, so their families naturally spent time together as well.

Adam Sandler’s daughter Sadie was born only several months after Sienna-Marie. Kevin told USA Today in 2007 that the two girls played together while they were very young. He even joked that Sienna had taught Sadie how to eat crayons.

Kevin also said that their wives got along, making it easy for the two families to spend time together. The story gives a small look at Sienna-Marie’s childhood and shows that she grew up around other children whose parents worked in movies.

There is little confirmed public information about whether Sienna-Marie and Sadie remain close today. For that reason, it is best to describe them as childhood friends rather than make claims about their current relationship.

What Is Sienna-Marie James Doing Today?

As of 2026, Sienna-Marie James is 20 years old and has reached adulthood. She already has experience in film, television, and live theater, but there is limited public information about what career path she plans to follow next.

Her theater background suggests that acting has been a real interest, not simply something she tried because of her father. At the same time, no major new acting project has been widely confirmed for her in the information available here.

That makes it difficult to say whether Sienna-Marie plans to become a full-time actress, continue with theater, or choose a completely different career. She has plenty of time to decide, and her family appears to give their children room to explore different interests.

What is clear is that she has not tried to build a highly public celebrity image. She remains far less visible than Kevin James, and much of her daily life is kept away from news sites and social media attention.

Sienna-Marie James’ Life Away From Fame

Sienna-Marie James has grown up in a famous family, but very little about her personal life has been made public. Kevin James and Steffiana de la Cruz have shared some family stories over the years while still keeping many private details about their children away from the media.

There is no strong public information confirming Sienna-Marie’s current dating life or whether she has a boyfriend. Claims about relationships should therefore be treated carefully unless Sienna-Marie or a reliable source confirms them.

Information about her college education and current job is also limited. The same is true for claims about her personal net worth. Because her acting work has mostly involved smaller roles, online estimates about her wealth should not be treated as confirmed facts.

Sienna-Marie also does not appear to share every part of her life publicly. That privacy has allowed her to grow up without the same level of attention that often follows children of major Hollywood stars.

Bottom Line

Sienna-Marie James has grown up around movies and comedy, but she has also started creating her own story. From childhood film roles to live theater and kickboxing, she has explored several interests while staying mostly out of the spotlight.

She may continue acting in the future, or she may choose another path. For now, the most reliable picture is simple: Sienna-Marie is Kevin James and Steffiana de la Cruz’s eldest child, a young performer with stage and screen experience, and someone who has managed to keep much of her life private.

(FAQs)

Who is Sienna-Marie James?

Sienna-Marie James is the eldest daughter of actor and comedian Kevin James and actress Steffiana de la Cruz. She has appeared in movies, television, and live theater.

What role did Sienna-Marie James play in Oliver!?

Sienna-Marie played the Artful Dodger in a 2022 production of Oliver! at Cultural Arts Playhouse on Long Island. Kevin James played Fagin, while her siblings also took part in the show.

Does Sienna-Marie James do kickboxing?

Yes. Kevin James has said that his eldest daughter practiced kickboxing and described her as strong and tough. There is no clear evidence that she competes professionally.

Who are Sienna-Marie James’ siblings?

She has three younger siblings: Shea Joelle James, Kannon Valentine James, and Sistine Sabella James. Kannon is Kevin and Steffiana’s only son.

What is Sienna-Marie James doing now?

As of 2026, she keeps a relatively private life. She has experience in acting and theater, but there is limited confirmed information about her current career, studies, or future projects.

More on this topic:

Karima Jackson: Everything to Know About Ice Cube’s Daughter

Who Is Natasha Caine? A Look at Michael Caine’s Daughter’s Life, Family, and Career