Alisha Weir – Biography, Age, Movies and 2026 Updates

Alisha Weir is an Irish actress and singer who rose to international fame as the lead in Netflix’s Matilda the Musical before pivoting to horror with the title role in Universal’s Abigail. Born in Dublin in 2009, she has quickly become one of the most talked-about young performers in film.

Her career began on the Dublin stage, and within a few years she was starring in major studio productions. As of 2026, she is 16 years old and has several projects in various stages of release.

This profile covers her biography, filmography, family background, and what she is working on now.

Who Is Alisha Weir? Biography and Background

Key Insights

• Alisha Weir gained international recognition for her lead role in Matilda the Musical at age 12.
• Her transition from stage to screen demonstrates versatility, with the horror-thriller Abigail marking a significant genre shift.
• At 16, she is represented by United Agents and has been cast in major studio productions.
• She was named in Forbes 30 Under 30 in April 2024.
• She received a Critics’ Choice Movie Award nomination for Best Young Performer for Abigail.
• Her social media presence is active, with a focus on positivity and gratitude.

Quick Facts

Alisha Weir was born on 26 September 2009 in Dublin, Ireland, according to Wikipedia and IMDb. She grew up in the South Dublin suburb of Knocklyon. Her family background includes two older sisters, who helped inspire her interest in acting through drama classes, as noted by Screen Dollars and Wikipedia.

Sources differ on her parents’ specifics. One source says she was born and raised in Dublin “by her parents,” while Wikipedia states her father manages a car dealership and that she lives with her parents in Knocklyon. Famous Birthdays names her father as Mark Weir and her sisters as Emma-Jane Weir and Katie Weir.

What Movies Has Alisha Weir Been In? Full Filmography

Alisha Weir’s career began in theatre. She played Ivanka in Once at Dublin’s Olympia Theatre in 2017. Her screen debut came in 2018 with the thriller Don’t Leave Home. She then made her television debut as Laura in Darklands in 2019.

Breakout Role: Matilda the Musical

Her breakout role came when she was cast at age 11 as Matilda Wormwood in Netflix’s film adaptation of Matilda the Musical, released in 2022. The role made her widely known, and she also performed songs on the soundtrack.

Genre Shift: Abigail

She later starred in the horror film Abigail (2024), where she played the title role. Sources note she did her own stunts after ballet training.

Other Notable Work

• Wicked Little Letters (2023)
• English localization voice work for Two by Two: Overboard!
• Voice role in the upcoming animated feature The Land of Sometimes
• The Last Days of Rabbit Hayes – listed in IMDb as post-production in 2026
• Theatre return in 2025 in Mary Page Marlowe at The Old Vic, sharing the title role with four other actresses

What Is Alisha Weir Doing Now? Current Status and Social Media

As of 2026, Alisha Weir has several projects in development. IMDb lists The Last Days of Rabbit Hayes as post-production. She was also involved in Mary Page Marlowe in September 2025 at The Old Vic. The Land of Sometimes remains an upcoming voice project.

Her Instagram account is @alishaweir123. The visible bio and posts promote Abigail and appear to be her active public Instagram presence. She also has a verified Facebook page at AlishaWeir123.

Career Timeline

1. 26 September 2009: Born in Dublin, Ireland.
2. 2017: Stage debut as Ivanka in Once at Dublin’s Olympia Theatre.
3. 2018: Screen debut in the thriller Don’t Leave Home.
4. 2019: Television debut as Laura in Darklands.
5. 2022: Cast as Matilda Wormwood in Netflix’s Matilda the Musical.
6. 2023: Appeared in Wicked Little Letters.
7. 2024: Starred as the title character in Universal’s horror-thriller Abigail.
8. April 2024: Named in Forbes 30 Under 30.
9. 2025: Returned to theatre in Mary Page Marlowe at The Old Vic.
10. 2026: The Last Days of Rabbit Hayes in post-production; The Land of Sometimes upcoming.

What Is Confirmed and What Remains Unclear?

What Does Her Career Trajectory Mean?

Alisha Weir represents a new generation of Irish actors gaining international prominence through streaming platforms. Her casting in both a musical and a horror film demonstrates unusual range for a young actor. The transition from child actor to young adult roles will be a critical phase in her career development. Her association with Universal’s monster movie franchise signals major studio confidence in her talent.

Key Sources and Quotes

“Alisha Weir (born 26 September 2009) is an Irish actress, best known for her leading roles in the films Matilda the Musical (2022) and Abigail (2024).”

— Wikipedia

“Alisha Weir is an actress and singer quickly making her mark in the entertainment industry. She grew up in the South Dublin suburb of Knocklyon.”

— IMDb

“Best actress and Rising star, Alisha Weir lands starring role in Universal’s new monster movie, been nominated for an IFTA 2023.”

— Instagram bio

Summary: Who Is Alisha Weir?

Alisha Weir is a 16-year-old Irish actress and singer from Dublin who rose to fame as Matilda in Matilda the Musical and later starred in the horror film Abigail. She has been recognized by Forbes 30 Under 30 and nominated for a Critics’ Choice Award. Her upcoming projects include The Last Days of Rabbit Hayes and The Land of Sometimes. For similar profiles, see Malina Weissman – Age, Movies, Net Worth, Social Media and Jennifer Carpenter – Biography, Movies and TV Shows.

Frequently Asked Questions