A 13-year-old actress lands a role in one of the most anticipated horror series of 2025 – that’s the reality for Clara Stack, who has already appeared in a Marvel blockbuster and a Disney+ holiday film. This biography pieces together what’s known about her age, career, and background—and what remains unconfirmed.
Date of Birth: October 19, 2010 ·
Age (as of 2024): 13 ·
Nationality: American ·
Known For: It: Welcome to Derry, The Naughty Nine, Hawkeye ·
Instagram Followers: 503K
Quick snapshot
- Born October 19, 2010 (Scottish Wikipedia)
- Actress in mainstream productions since roughly 2017 (Plex filmography)
- High-profile roles: Hawkeye (2021), The Naughty Nine (2023), It: Welcome to Derry (2025) (IMDb)
- Ethnicity not publicly disclosed (IMDb)
- Height not publicly available (Scottish Wikipedia)
- Exact current residence not confirmed (Aussie Insightly)
- Premiere of It: Welcome to Derry on HBO in 2025
- Continued social media growth (503K Instagram followers)
- Potential future casting announcements unconfirmed
Four key facts stand out from the crowd: a precise birth date, a clear nationality, a growing filmography, and at least two high-profile franchises. Here’s the data in detail.
| Attribute | Details |
|---|---|
| Full Name | Clara Stack (IMDb) |
| Date of Birth | October 19, 2010 (Scottish Wikipedia) |
| Age (as of 2024) | 13 (Scottish Wikipedia) |
| Nationality | American (IMDb Biography) |
| Ethnicity | Not publicly disclosed |
| Height | Not publicly available |
| Occupation | Actress (FILMSTARTS.de) |
| Years Active | 2017–present (FILMSTARTS.de) |
| Notable Works | It: Welcome to Derry (2025), The Naughty Nine (2023), Hawkeye (2021), Bull, Madam Secretary (IMDb) |
| Instagram Followers | 503K (Aussie Insightly) |
| TikTok Followers | 570.4K (Aussie Insightly) |
Her age is verified across multiple sources, but personal details like height and ethnicity remain unknown. For casting directors and fans, the confirmed data is solid—the gaps are where speculation fills in.
How old is Clara Stack in Welcome to Derry?
Age verification from Wikipedia
Clara Stack was born on October 19, 2010, according to the Scottish Wikipedia and Famous Birthdays (a celebrity database). This places her age at 13 years old as of 2024, and she turned 14 in October 2024. The German Wikipedia lists a different date—15 November 2010—but the Scottish entry is more widely cited across English-language profiles.
Age in context of the series
- The HBO series It: Welcome to Derry is set in 1962, featuring a group of child characters.
- Stack’s character, Lilly Bainbridge, is a young girl—consistent with Stack’s own age bracket.
- According to Aussie Insightly (an entertainment news site), she self-taped for the audition in December 2022, when she was 12.
The implication: Her age aligns perfectly with the casting needs of a pre-teen ensemble in a period horror series—no age discrepancy drama here.
What is Clara Stack famous for?
Key roles: Lilly Bainbridge in It: Welcome to Derry
Stack’s breakthrough role is Lilly Bainbridge in the HBO series It: Welcome to Derry (2025). The series serves as a prequel to the 2017 film It, focusing on the origins of Pennywise the Clown. This marks her first major horror franchise role.
Previous work: Hawkeye, The Naughty Nine
- Hawkeye (2021): Portrayed a young Kate Bishop in the Disney+ Marvel series.
- The Naughty Nine (2023): Starred in the Disney+ holiday comedy about a group of kids who pull off a heist.
- Earlier credits: Guest roles in Madam Secretary, Bull, The Marvelous Mrs. Maisel, and Almost Family.
Stack has moved from small guest spots on network dramas to supporting roles in major franchises—Marvel, Disney+, HBO. That arc, from Madam Secretary to It: Welcome to Derry in just over a decade, is unusually fast for a child actress.
This trajectory signals a rising star in the making.
What is Clara Stack’s ethnicity?
Public disclosures
Clara Stack has not publicly disclosed her ethnicity. None of the verified sources—IMDb, Scottish Wikipedia, French Wikipedia (an international encyclopedia)—list her racial or ethnic background.
Family background
- Famous Birthdays claims her parents are named Eoin and Amanda Stack, but confidence is low.
- No reliable source confirms her ancestry or heritage.
- Her Instagram feed does not discuss ethnicity.
The catch: For readers seeking a clear answer, there isn’t one yet. Stack’s ethnicity remains private, and any claims otherwise are unsourced speculation.
Does Clara Stack have a twin sister?
Rumors and facts
A Famous Birthdays entry claims Clara Stack has a twin sister named Maggie Stack, but this information is not corroborated by IMDb or any Wikipedia edition. The confidence rating on this claim is low.
Social media clues
- No mention of a twin on her Instagram account @clarastacknyc.
- Photos on her feed show her with friends and colleagues, but no sibling.
- No reputable entertainment press has reported a twin sister.
What this means: The twin rumor is unverified. Until an official source or Stack herself confirms it, treat it as internet speculation.
Where does Clara Stack live now?
Social media indications
Her Instagram handle @clarastacknyc and the content she posts—including New York City landmarks—strongly suggest she is based in New York City. According to Aussie Insightly, the NYC connection is inferred from active social media presence rather than confirmed geographic data.
Privacy considerations
- Exact address or neighborhood is not available.
- Family privacy is a factor: Stack is a minor (13-14 years old), and her family has not shared location details.
- German Wikipedia lists New York City as her birthplace, but does not confirm current residence.
The trade-off: Social media gives followers a sense of her world, but actual location data is intentionally withheld—reasonable caution for a young actor.
Timeline: Clara Stack’s career milestones
Her career trajectory is condensed into the timeline below.
| Date | Event |
|---|---|
| October 19, 2010 | Born in the United States (Scottish Wikipedia) |
| 2014 | First known credit: Madam Secretary (Plex filmography) |
| 2017 | Appeared in The Marvelous Mrs. Maisel (Plex) |
| 2021 | Portrayed young Kate Bishop in Hawkeye (IMDb) |
| 2023 | Starred in The Naughty Nine on Disney+ (IMDb) |
| 2025 | Plays Lilly Bainbridge in It: Welcome to Derry (IMDb) |
“Clara Stack was born on October 19, 2010, and is an American actress.”
Scottish Wikipedia
Why this matters: Stack’s career spans roughly seven years, but the acceleration from 2021 is striking. Two major franchise roles in four years—Hawkeye and It: Welcome to Derry—suggest a rising trajectory that casting directors are already noting.
Clara Stack’s on-screen career highlights
Eleven credited works, two franchise anchors, one clear pattern: she gravitates toward ensemble pieces with strong child-character roles.
- Madam Secretary (2014) – Guest role
- Bull (2016) – Guest role
- The Marvelous Mrs. Maisel (2017) – Guest role
- Almost Family (2019) – Guest role
- Hawkeye (2021) – Young Kate Bishop
- The Naughty Nine (2023) – Lead role
- It: Welcome to Derry (2025) – Lilly Bainbridge
“She secured her first on-screen role when she was eight, and she portrayed Matilda in a New York production of Matilda the Musical.”
The pattern: Stack’s early stage work in theater may have paved the way for her TV career, a common path for young New York-based actors.
The twin-sister rumor is the most persistent unverified claim online. For fans and journalists, the safest approach is to ignore it until it comes from an authoritative source—Stack’s own social media or a verified family interview.
For more details on Clara Stacks career and role, readers can explore a comprehensive biography that covers her early roles and audition process.
Frequently asked questions
How tall is Clara Stack?
Her height has not been publicly confirmed from any reliable source.
What is Clara Stack’s nationality?
She is an American actress, born in the United States (IMDb).
What are Clara Stack’s upcoming projects?
Her next confirmed role is Lilly Bainbridge in HBO’s It: Welcome to Derry (2025) (IMDb).
Who are Clara Stack’s parents?
No verified source has identified her parents—claims about Eoin and Amanda Stack are unsubstantiated.
Is Clara Stack active on TikTok?
Yes, she has an account with approximately 570.4K followers (Aussie Insightly).
How many followers does Clara Stack have on Instagram?
Approximately 503K as of late 2024 (Aussie Insightly).
What was Clara Stack’s first acting role?
Her earliest credited role is a guest appearance on Madam Secretary in 2014 (Plex filmography).
For the entertainment journalist or curious fan, the data on Clara Stack is clean in a few places (age, filmography) and frustratingly empty in others (ethnicity, height, family). The lesson: treat every unverified claim with the same skepticism you’d give a horror movie plot twist. For Hollywood casting directors, the relevant facts are clear—she’s 13, American, and already has two franchise credits. Everything else is filler until she or a studio confirms it.
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Noah Gagnon is Senior Regional Reporter at Northern Focus, covering breaking stories and community-sourced tips across Canada.