It’s easy to get lost in the noise online when searching for a young actor’s biography, but sometimes the simplest facts are the hardest to pin down. For Clara Stack, the actress stepping into It: Welcome to Derry, this article separates verified details from speculation, giving you a clear picture of her career and age.
Born: October 19, 2010 · New York ·
Breakout role: Lilly Bainbridge in It: Welcome to Derry (2025) ·
Movie credit: Rose in The Naughty Nine (2023) ·
Marvel credit: Hawkeye (2021) ·
Instagram: @clarastacknyc · 495K followers
Quick snapshot
- Lilly Bainbridge in It: Welcome to Derry (2025) (Wikipedia (crowdsourced encyclopedia))
- Rose in The Naughty Nine (2023) (IMDb (film database))
- Credited in Hawkeye (2021), Madam Secretary, and Bull (Famous Birthdays (celebrity data))
- Born October 19, 2010, in New York (TV Insider (entertainment news))
- American actress (TV Insider (entertainment news))
- Started acting at age 4 (Disney press bio (official publisher))
- Twin sister unconfirmed
- Parents not named in provided sources
- Height, ethnicity, and net worth not disclosed
Seven verified data points form the backbone of Clara Stack’s public profile, from birth date to Instagram follower count.
| Label | Value |
|---|---|
| Full name | Clara Stack |
| Born | October 19, 2010, New York (TV Insider (entertainment news), Wikipedia (crowdsourced encyclopedia)) |
| Nationality | American |
| Known for | Lilly Bainbridge in It: Welcome to Derry (2025) (IMDb (film database)) |
| Movie credit | Rose in The Naughty Nine (2023) (IMDb (film database)) |
| Other TV credits | Hawkeye (2021), Madam Secretary, Bull (Famous Birthdays (celebrity data)) |
| @clarastacknyc · 495K followers |
How old is Clara Stack in Welcome to Derry?
How old is the actor Clara Stack?
- Clara Stack was born October 19, 2010, in New York (TV Insider (entertainment news); Wikipedia (crowdsourced encyclopedia)).
- During the 2025 premiere of Welcome to Derry, she was 14; she turned 15 on October 19, 2025 (TV Insider (entertainment news)).
- She plays Lilly Bainbridge in It: Welcome to Derry (IMDb (film database)).
- Lilly Bainbridge’s exact age is not specified in the provided sources.
What role does Clara Stack play in Welcome to Derry?
According to Wikipedia (crowdsourced encyclopedia), Stack portrays Lilly Bainbridge, a child character in the It prequel series set in 1962 (Public Journal (online magazine)). The role marks her highest-profile credit to date.
Stack’s real age (14–15) aligns closely with the typical child-performer age range for a 1960s-set horror series, making her casting plausible without requiring age suspension of disbelief.
Bottom line: Clara Stack was 14 years old when Welcome to Derry premiered in 2025. She turns 15 in October 2025. Her character Lilly Bainbridge’s age is not publicly stated by the producers.
The pattern: her birth date is solid, but the character age remains unconfirmed.
What is Clara Stack famous for?
When did Clara Stack start acting?
- According to Disney press bio (official publisher), she began acting at age 4 in local theater.
- Her first television credit appears in Madam Secretary and Bull, followed by Hawkeye in 2021 (Famous Birthdays (celebrity data)).
What is Clara Stack’s Instagram handle?
Her Instagram account @clarastacknyc has 495K followers as of 2025. She uses the platform to promote projects like Welcome to Derry and the SCAD Film Festival.
While her Instagram reach is substantial for a young actor, follower counts don’t equate to career longevity. The real test will be whether she secures roles beyond the It franchise.
Bottom line: Clara Stack is best known for her breakout role as Lilly Bainbridge in HBO’s It: Welcome to Derry (2025). She started acting in local theater at age 4 and has since built a résumé spanning Disney, Marvel, and network television.
The implication: her early start and multi-network credits show versatility, but the HBO role is the career-defining moment so far.
What movies has Clara Stack been in?
What Disney movie is Clara Stack in?
- The Naughty Nine (2023) is her only listed movie credit in the provided sources (IMDb (film database)).
- She plays Rose, an animal expert, in the Disney Original Movie (Disney press bio (official publisher)).
Has Clara Stack appeared in Madam Secretary or Bull?
Yes — according to Famous Birthdays (celebrity data), Stack appeared in both Madam Secretary and Bull before her Marvel and HBO credits. Specific episode roles are not detailed in the provided data.
The pattern: her filmography is almost entirely television, with only one theatrical/on-demand film to date. No additional movie credits are listed in any of the verified sources.
Is Clara Stack in Hawkeye?
What is Clara Stack’s Hawkeye role?
- Yes, she appears in Hawkeye (2021) (IMDb (film database)).
- Multiple entertainment biography sites, including BioFactz (entertainment biography) and BiographyHive (celebrity biography), claim she played a young Kate Bishop.
What other Marvel or Disney+ projects has Clara Stack appeared in?
No other Marvel or Disney+ credit appears in the provided sources beyond Hawkeye. She has not been linked to any other MCU series or films as of 2025.
The young‑Kate‑Bishop role, if accurate, would connect Stack to the MCU’s legacy, but the claim currently relies on lower‑authority sources. A direct confirmation from Disney or Marvel Studios would solidify it.
Bottom line: Clara Stack indeed has a credit in Hawkeye (2021), though the specific role is unconfirmed by official sources. She has no other known Marvel or Disney+ appearances.
The catch: without official confirmation, the young Kate Bishop claim remains speculative.
Does Clara Stack have a twin sister?
Who are Clara Stack’s parents?
None of the verified sources — Wikipedia (crowdsourced encyclopedia), IMDb (film database), TV Insider (entertainment news) — name Clara Stack’s parents. This remains an open gap in her public biography.
Does Clara Stack have any siblings?
No provided source confirms a twin sister or any siblings for Clara Stack. The twin rumor appears to originate from unsourced social-media chatter and is not backed by any of the tracked databases.
The twin‑sister claim is the most persistent misinformation in Clara Stack search results. Readers should treat it as unconfirmed until a credible source — a verified biography or Stack herself — addresses it.
Bottom line: There is no evidence that Clara Stack has a twin sister or any siblings. Her parents’ names have not been publicly disclosed. These family details should be considered unconfirmed rather than speculative.
The consequence: for now, the public record has no verified family information beyond her birth location.
Timeline signal
- c. 2014–2015 (age 4): Started acting in local theater, according to Disney press bio (official publisher).
- 2021: Appeared in Marvel’s Hawkeye on Disney+ (IMDb (film database)).
- 2023: Starred as Rose in Disney Original Movie The Naughty Nine (IMDb (film database)).
- 2025: Played Lilly Bainbridge in HBO’s It: Welcome to Derry (Wikipedia (crowdsourced encyclopedia)).
- 2025: Promoted Welcome to Derry and SCAD Film Festival on Instagram (@clarastacknyc).
The timeline shows a steady rise from local theater to Marvel and HBO roles within a decade.
Confirmed facts
- Born October 19, 2010, in New York (TV Insider (entertainment news)).
- Credited roles include It: Welcome to Derry, The Naughty Nine, Hawkeye, Madam Secretary, and Bull (IMDb (film database), Famous Birthdays (celebrity data)).
- Instagram handle is @clarastacknyc with 495K followers.
- Disney press bio says she started acting at age 4 (Disney press bio (official publisher)).
What’s unclear
- Whether she has a twin sister or any siblings.
- Names of her parents.
- Exact Hawkeye character name (reported as young Kate Bishop by unofficial sources).
- Height, ethnicity, and net worth.
- Lilly Bainbridge’s age within the show.
The distinction between confirmed and unclear helps readers avoid misinformation.
Key perspectives
“Stack’s character Rose is an animal expert with a love for reptiles.”
— Disney official press bio for The Naughty Nine (Disney press bio (official publisher))
“Clara Stack is best known for her portrayal of Lilly Bainbridge in HBO’s It: Welcome to Derry (2025).”
— Wikipedia (crowdsourced encyclopedia)
“She is known for It: Welcome to Derry (2025), The Naughty Nine (2023), and Hawkeye (2021).”
— IMDb (film database)
“Madam Secretary and Bull are among her early television credits.”
— Famous Birthdays (celebrity data)
For the casual fan searching for Clara Stack, the takeaway is straightforward: many of the easy answers — age, date of birth, verified credits — are solid. The hard ones — family, height, net worth — remain unconfirmed by reputable sources. Until Clara Stack or a major publisher fills those gaps, the twin-sister rumor and other unspecified biographical details will continue to dominate search results. For Clara Stack, the verified filmography and birth record are the only reliable sources, while the twin-sister rumor remains unsubstantiated noise.
de.wikipedia.org, chronicalheroes.com, ar.wikipedia.org, pt.wikipedia.org, tunota.com
Frequently asked questions
Is Clara Stack related to Clara Bow?
No. Clara Bow was a silent-film star from the 1920s. Despite the similar first name, no source connects Clara Stack to Clara Bow. The confusion likely stems from name similarity alone.
What is Clara Stack’s height?
Her height has not been disclosed in any of the verified sources examined for this article.
What is Clara Stack’s ethnicity?
No reliable source lists her ethnicity. It remains an open question.
What is Clara Stack’s net worth?
Net worth is not reported in any of the tracked databases or press materials. Estimates from fan sites are not supported by evidence.
What is Clara Stack’s nationality?
She is American, born in New York.
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Craig Newton is Senior Reporter at ScopePress.uk, covering breaking technology news and consumer tech stories across the UK.