Clara Stack is an American actress primarily known for her role as Lilly Bainbridge in the HBO series IT: Welcome to Derry (2025). With her natural acting skills and screen presence, she has been featured in some of the popular television programs and films. Clara gained great popularity after appearing in popular series such as Madam Secretary, Bull, and Hawkeye. The next milestone of her career came in the form of her role in the It – Welcome to Derry horror/horror prequel series where she portrayed Lilly Bainbridge, a series that is related to the popular Stephen King horror universe. This article will provide complete information about Clara Stack Biography.
Who is Clara Stack?
Clara Stack is well known as a gifted child actress who started her career in the entertainment business by performing in the stage and minor TV shows. With time, this enabled her to enlarge opportunities in popular TV shows and films with the help of her performances. Her experience working with large productions firms and featuring in popular series worldwide has made her increase in popularity. She has been versatile even at a tender age by playing various genres such as drama, comedy and horror.
| Attribute | Details |
| Full Name | Clara Stack |
| Date of Birth | October 19, 2010 |
| Age (2026) | 16 Years |
| Birthplace | United States |
| Nationality | American |
| Profession | Actress, Model |
| Famous For | Hawkeye, It – Welcome to Derry |
| Religion | Christianity (reported) |
| Zodiac Sign | Libra |
| Active Years | 2014 – Present |
Clara Stack Age
Clara Stack was born on October 19, 2010, in the United States. As of 2026, she is 15 years old. Her zodiac sign is libra.
| Attributes | Detrails |
| Date of Birth | 19 October 2010 |
| Age(2026) | 15 |
| Zodiac | Libra |
Clara Stack Height, Weight and Physical Status
Clara Stack is 4 feet 4 inches tall. She is young and petite in physical appearance and this suits her roles as a child or a teenager character in the TV and the movies. Since she started her profession at such a tender age, early documentation of her physical measurements depicts her childhood life. These measurements can change automatically as she matures.
| Attribute | Details |
| Height | Approx. 4 feet 4 inches (1.33 m) |
| Weight | Around 30 kg (approx.) |
| Eye Color | Brown |
| Hair Color | Brown |
| Body Type | Petite |
| Distinct Features | Youthful look, expressive acting |
Family Members
Clara Stack was raised in a supportive family which promoted creativity and artistic expression. Since early childhood, she has shown a strong interest in performing arts, including acting, singing, and dancing. Her family recognized her innate talent; they therefore helped her pursue stage performances and acting opportunities.
Her father, Eoin Stack, is of Irish origin and Nenagh born in Ireland. Amanda Stack is her mother who has played a critical role in encouraging Clara to act. Clara is also the twin sister of Maggie Stack who is very close to her. The positive family allowed Clara to gain self-confidence and act as she likes. As a child, Clara performed at local theatre-productions and took classes in dancing. These performances made her build confidence and performance skills on stage until she got into professional acting.
| Family Member | Relation | Details |
| Eoin Stack | Father | Originally from Nenagh, Ireland |
| Amanda Stack | Mother | Supports Clara’s acting career |
| Maggie Stack | Twin Sister | Shares close relationship |
Educational Qualifications
Although she is an active participant in the sphere of television and film, the information about her official education at schools does not appear in her career biography.
| Education Aspect | Details |
| Schooling | Flexible schooling / Homeschooling |
| Acting Training | Theater acting |
| Dance Training | Ballet |
| Additional Skills | Singing, stage performance |
Clara Stack Relationship Status
Clara Stack keeps her life personal . There are no confirmed reports about romantic relationships or dating history. She manages a professional career alongside her education and therefore spends the bulk of her time balancing schoolwork with auditions.
| Personal Detail | Information |
| Marital Status | Unmarried |
| Relationship Status | Single |
| Hobbies | Dancing, Singing |
| Interests | Traveling, Family Time |
| Pets | Pet Cat |
Clara Stack Career
Clara Stack began acting in theater at the tender age of four years. She has been featured in stage shows like Annie, The music man and Matilda the Musical. These performances made her grow up confident and skilled in acting. Having acquired experience in the theater, she went to the field of television and received her first acting role in 2014. Her first appearances in TV enabled her to learn about the entertainment industry and made the larger opportunities possible.
Clara Stack TV Roles
Clara went on with her career by featuring in various t.v. shows. Esther in the series Almost Family was one of her outstanding roles. She subsequently featured as the young version of Kate Bishop in the Marvel show Hawkeye which exposed her to more people around the world. She gained significant publicity in 2025, as Lilly Bainbridge in the horror series IT Welcome to Derry, which is based on a Stephen King horror story.
Clara Stack Film Work
Clara Stack has also been involved in films besides television. Among her best known filming appearances is that of Rose Wingert in Disney film The Naughty Nine released in 2023. In the film, she acted as an imaginative character in an affair of a holiday heist. This position assisted her to access younger viewers and grow in her acting profession even more.
Recent Achievements
In 2026, Clara was nominated at the Saturn Awards in the nomination category of Best Young Performer in a Television Series in her work in the TV series IT: Welcome to Derry. Other than acting, Clara also has other creative hobbies like drawing and crocheting. She resides now in New York and is still in the process of studying and acting. When she was four years old Clara Stack began acting in the theater. She played stage roles in Annie, The Music Man and Matilda the Musical. Such early stages of acting made her build confidence and acting abilities. Having acquired experience in the sphere of theatre, she transferred to the sphere of television, and in the year 2014, she received her first screen role. Her initial appearances on TV assisted her in getting to know about the world of entertainment, and this led to greater prospects.
Clara Stack Movies and TV Shows
| Year | Project | Role | Type |
| 2014 | Madam Secretary | Corra | TV Series |
| 2016 | Bull | Hannah Kelly | TV Series |
| 2017 | The Marvelous Mrs. Maisel | Francesca | TV Series |
| 2019 | Almost Family | Esther | TV Series |
| 2021 | Hawkeye | Young Kate Bishop | TV Series |
| 2023 | The Naughty Nine | Rose Wingert | Film |
| 2025 | IT: Welcome to Derry | Lilly Bainbridge | TV Series |
Awards and Achievements
| Year | Award | Category | Project |
| 2026 | Saturn Awards (Nomination) | Best Younger Performer | It – Welcome to Derry |
Clara Stack Net Worth
The net worth of Clara Stack is not publicly disclosed. Although unofficial celebrity net worth websites estimate her wealth to be around $500,000, these figures remain speculative and neither financial records nor the actress herself have confirmed them.
Clara Stack Social Media Profile
Clara Stack is also present on Instagram and Twitter where she posts updates about her acting life, family life, and behind-the-scenes stories of the filming. The most active one is her Instagram account where the fans can track her activities and career progress. She posts about movie sets, promotional events and her personal life through social media. Her social media audience should also expand as her career keeps expanding.
| Platform | Profile ID | Followers (Approx.) | Content |
| @clarastacknyc | 504K+ followers | Career updates, photos | |
| TikTok | @clara.stack | 540.6K+ followers | Edits, clips |
Conclusion
Clara Stack has already become one of the young actresses whose future in the entertainment world is bright. Her career began as a theater performer and a minor in televisions, but she eventually had a very impressive acting resume. She has been successful in her appearances in popular series like Hawkeye and It Welcome to Derry, and this has made her known among the world audiences. Clara has a lot of potential in the entertainment industry due to a well-built family support, professional representation and increased experience in films and television. She matures as an actress and thus seeks increasingly difficult roles that solidify her status in Hollywood. It is her dedication, talent, and passion in acting that can see her become a rising star in the years to come.
FAQs
A1. Clara Stack is an American actress who has been featured on such TV series as Hawkeye and It Welcome to Derry.
A2. She is 16 years old as of 2026.
A3. She is recognized as an actress of Lilly Bainbridge in It – Welcome to Derry and as a young Kate Bishop in Hawkeye.
A4. She does have a twin sister, Maggie Stack.
A5. Her net worth is not publicly disclosed.
