Clara Stack is a young American actress best known for playing a younger version of Kate Bishop in Marvel’s Hawkeye and for her lead role as Lilly Bainbridge in HBO’s It: Welcome to Derry. Despite her growing profile, a comprehensive English-language biography has remained elusive. This article gathers verified facts from reliable sources to provide a clear, up-to-date overview of her age, height, career milestones, and online presence.
Who Is Clara Stack? Biography, Age, and Background
Clara Stack was born on October 19, 2010, in New York City, making her 14 years old at the time of It: Welcome to Derry‘s premiere in late 2025 and 15 in 2026. She is American, and her ethnicity has been described as White in some profiles, though this has not been officially confirmed by the actress or her representatives.
Key Insights About Clara Stack
- She is a rapidly emerging young actress who gained early visibility by playing a younger version of a major Marvel character.
- Her casting in HBO’s It: Welcome to Derry marks a significant leap into prestige horror/streaming television.
- Despite her growing fame, no official English Wikipedia page exists, leaving a notable information gap.
- Her Instagram following of over 503,000 indicates strong audience engagement and potential for continued media interest.
Snapshot Facts
| Attribute | Detail |
|---|---|
| Full Name | Clara Stack |
| Date of Birth | October 19, 2010 |
| Nationality | American |
| Profession | Actress |
| Breakout Role | Young Kate Bishop in Marvel’s Hawkeye |
| Upcoming Project | Lilly Bainbridge in It: Welcome to Derry |
| Social Media | Instagram: @clarastacknyc (verified) |
How Old Is Clara Stack and How Tall Is She?
The most widely cited birth date for Clara Stack is October 19, 2010, confirmed by multiple reliable sources including the Scots Wikipedia, Portuguese Wikipedia, IMDb, and TV Insider. A German Wikipedia entry lists November 15, 2010, but the October date is far more consistent across international databases. As of early 2026, she is 15 years old.
Regarding her height, there is no official measurement from the actress or her representatives. Earlier profiles from her childhood roles list a height of 4’4″ (133 cm), which is likely outdated. Based on on-screen comparisons in her more recent roles, current estimates place her around 5’0″ (152 cm), but this is not verified.
No official source has published Clara Stack’s current height. The figure of 4’4″ comes from early career materials and does not reflect any growth since then. Any specific height number should be treated as an estimate until confirmed.
What Movies and TV Shows Has Clara Stack Starred In?
Clara Stack began acting at age 4 in local theater productions such as Annie, The Music Man, and Matilda the Musical. Her professional television career started in 2019 with guest roles on Madam Secretary, Bull, and Almost Family.
Breakout in the Marvel Cinematic Universe
In 2021, Stack was cast as the young Kate Bishop in Disney+’s Hawkeye, a role that introduced her to a global audience. The series, part of the Marvel Cinematic Universe, starred Hailee Steinfeld as the older version of the same character.
Disney+ Holiday Film and HBO’s It Prequel
In 2023 she played Rose in Disney’s original holiday film The Naughty Nine. Her most significant role to date came in 2025 when she was cast as Lilly Bainbridge in HBO’s limited series It: Welcome to Derry, a prequel to Stephen King’s It universe. She stars alongside Jovan Adepo in what is expected to be a lead role. In 2026, she received a Saturn Award nomination for Best Youth Performer in a Television Series.
Clara Stack’s move from a one-episode appearance in a major franchise to a lead role in a prestige HBO series illustrates a rapid career progression uncommon for young actors. Her nomination for a Saturn Award further underscores her growing recognition in the industry.
Is Clara Stack on Instagram? Social Media Presence
Yes, Clara Stack maintains a verified Instagram account under the handle @clarastacknyc. As of 2025, the account has amassed over 503,000 followers. The profile features promotional content for her projects, behind-the-scenes glimpses, and occasional personal posts. No other major social media accounts (such as TikTok or Twitter) have been officially confirmed.
Timeline of Clara Stack’s Career
- 2010 — Born on October 19 in New York City.
- 2021 — Cast as Young Kate Bishop in Marvel’s Hawkeye (Disney+).
- 2023 — Starred in the Disney+ holiday film The Naughty Nine as Rose.
- 2025 — Cast as Lilly Bainbridge in HBO’s limited series It: Welcome to Derry. Attended the SCAD Film Festival.
- 2026 — Nominated for a Saturn Award for Best Youth Performer in a Television Series.
What Is Confirmed and What Remains Unclear?
| Established Information | Information That Remains Unclear |
|---|---|
| Date of birth: October 19, 2010 (confirmed by Scots Wikipedia, IMDb, TV Insider) | Exact current height (no official measurement) |
| Nationality: American, born in New York City | Ethnicity (not publicly confirmed) |
| Professional acting roles: Hawkeye, The Naughty Nine, Welcome to Derry | Net worth (no verifiable financial disclosures) |
| Instagram handle: @clarastacknyc (verified) | Parents’ identities and relationship status (privacy maintained) |
What Does Her Casting in Welcome to Derry Mean for Her Career?
Clara Stack represents a new wave of young actors transitioning from child roles in major franchises like Marvel to more complex, adult‑adjacent performances in prestige television. Her casting in It: Welcome to Derry places her in a high‑profile franchise reboot that targets both nostalgic adult viewers and a new younger generation. The lack of a comprehensive English Wikipedia page has created an opportunity for authoritative, up‑to‑date coverage of her biography.
Sources and Verified Information
The facts in this article draw from the following reliable sources:
- Clara Stack on Scots Wikipedia (birth date and role confirmations)
- Clara Stack on IMDb (filmography and award nomination)
- Clara Stack on Instagram (verified) (social following and event posts)
- Clara Stack on TMDb (role descriptions)
- Marvel’s Hawkeye official site (series information)
“Clara Stack is recognized as a promising young talent in the industry, with her role in It: Welcome to Derry significantly elevating her profile.”
Scots Wikipedia and TheCityCeleb biography
Summary
Clara Stack is a 15‑year‑old American actress who rose to prominence through her portrayal of young Kate Bishop in Hawkeye and is now making headlines as Lilly Bainbridge in HBO’s It: Welcome to Derry. While her exact height, ethnicity, and personal life remain private, her professional achievements are well documented. As her career continues to develop, this article will be updated with verified new information.
Frequently Asked Questions
Does Clara Stack have a boyfriend?
There is no public information available about Clara Stack’s relationship status. She is a minor, and her family has kept her personal life private.
What is Clara Stack’s net worth?
Clara Stack’s net worth has not been publicly disclosed. Any figures seen online are speculative estimates.
Is there a Wikipedia page for Clara Stack?
There is currently no English Wikipedia page. A basic entry exists on the Scots Wikipedia, but a full English‑language page has not been created yet.
What is Clara Stack’s ethnicity?
Clara Stack’s ethnicity has not been publicly confirmed by Clara or her representatives.
Who are Clara Stack’s parents?
Details about Clara Stack’s parents have not been made public.
Freddie Arthur Cooper Harrison is Editor-in-Chief of PopCulture UK, covering film, TV, music and celebrity news. He is accountable for the newsroom's editorial standards, and leads its sourcing and fact-checking process so that every article separates verified fact from rumour and is reviewed before publication.