# Fiona Glascott
**Fiona Glascott** (born 1982) is an Irish actress from [Waterford](https://www.edgepedia.org/waterford), Ireland, whose screen career runs from a 1998 film debut to recent television work including [Sherlock & Daughter](https://www.edgepedia.org/sherlock-and-daughter) (2025) and Julia (2022 to 2023). She is best known for playing the young [Minerva McGonagall](https://www.edgepedia.org/minerva-mcgonagall) in two Fantastic Beasts films and Rose in Brooklyn.[1](https://www.tvmaze.com/people/27950/fiona-glascott) • [2](https://www.rottentomatoes.com/celebrity/fiona_glascott)
| Key fact | Detail |
|---|---|
| Born | 1982, Waterford, Ireland[1](https://www.tvmaze.com/people/27950/fiona-glascott) |
| Film debut | This Is My Father (1998)[1](https://www.tvmaze.com/people/27950/fiona-glascott) |
| Signature film roles | Young Minerva McGonagall in Fantastic Beasts: The Crimes of Grindelwald (2018) and Fantastic Beasts: The Secrets of Dumbledore (2022); Rose in Brooklyn (2015)[2](https://www.rottentomatoes.com/celebrity/fiona_glascott) |
| Television roles | Diane in Episodes; Sarah Raworth in Indian Summers; Judith Jones in Julia; Lady Violet Somerset in Sherlock & Daughter (2025)[3](https://www.metacritic.com/person/fiona-glascott/) |
| Recognition | IFTA nomination for Goldfish Memory[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html) |
| Theatre | West End appearances in Hitchcock Blonde (Royal Court and West End) and The Country Wife at the Theatre Royal, Haymarket[5](https://s3.amazonaws.com/cdn.filmtrackonline.com/mongrelmedia/starcm_vault_root/images%2Ffiles%2Ff5%2Ff543af3a-81f9-43e6-a13b-dd1a85813207.pdf) |
| Family | Married to actor Tom Brooke; one daughter, Ruby; lives in south London[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html) |
## Early life and career start
Glascott became involved in theater at a young age through a mother in a small-town dramatic group and a father in a musical group.[1](https://www.tvmaze.com/people/27950/fiona-glascott) Her first film appearance came in This Is My Father in 1998, alongside other early credits including Crush Proof and Pete's Meteor the same year.[2](https://www.rottentomatoes.com/celebrity/fiona_glascott)
Her early television work covered many British series, including [Ballykissangel](https://www.edgepedia.org/ballykissangel), The Bill, A Touch of Frost, Murder in Suburbia, and [Foyle's War](https://www.edgepedia.org/foyles-war).[3](https://www.metacritic.com/person/fiona-glascott/) In 2002 she appeared as Ms. Gold in the film [Resident Evil](https://www.edgepedia.org/resident-evil).[6](https://www.allocine.fr/personne/fichepersonne-103956/filmographie/)
## Notable roles
**Brooklyn and Irish cinema.** Glascott played Rose, the sister of [Saoirse Ronan](https://www.edgepedia.org/saoirse-ronan)'s character, in Brooklyn (2015); on Rotten Tomatoes the film holds her career-high 97 percent audience rating.[2](https://www.rottentomatoes.com/celebrity/fiona_glascott) • [4](https://www.irishexaminer.com/lifestyle/arid-30901707.html) Earlier Irish films include Liz Gill's romantic comedy Goldfish Memory (2003), in which she played Isolde, a role that earned her an IFTA nomination, and Omagh (2004), [Paul Greengrass](https://www.edgepedia.org/paul-greengrass)'s drama about the victims of the 1998 [Omagh bombing](https://www.edgepedia.org/omagh-bombing), in which she played Cathy Gallagher.[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html) • [6](https://www.allocine.fr/personne/fichepersonne-103956/filmographie/)
**Fantastic Beasts and the McGonagall question.** In Fantastic Beasts: The Crimes of Grindelwald (2018), Glascott appears as a young Minerva McGonagall, a character [Maggie Smith](https://www.edgepedia.org/maggie-smith) played in the [Harry Potter](https://www.edgepedia.org/harry-potter) films; the scenes were added at [J. K. Rowling](https://www.edgepedia.org/j-k-rowling)'s behest.[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html) She reprised the role in Fantastic Beasts: The Secrets of Dumbledore (2022).[2](https://www.rottentomatoes.com/celebrity/fiona_glascott) The casting drew discussion because Harry Potter canon places McGonagall's birth in 1935, decades after the 1927 setting of the film in which she appears as a professor.[7](https://time.com/5463360/mcgonagall-fantastic-beasts/) To prepare, she worked with the dialogue coach Catherine Charlton, listening to recordings of Maggie Smith's McGonagall voice for about two weeks before sleeping.[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html) She got the role without an audition: Fiona Weir, the casting director of Brooklyn, cast her in Fantastic Beasts directly.[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html)
**Episodes and comedy television.** In the Golden Globe-winning, Emmy-nominated series Episodes, created by David Crane and Jeffery Klarik, Glascott played Diane, Matt Le Blanc's fictional wife, appearing from series 1 through series 5 between 2011 and 2017.[5](https://s3.amazonaws.com/cdn.filmtrackonline.com/mongrelmedia/starcm_vault_root/images%2Ffiles%2Ff5%2Ff543af3a-81f9-43e6-a13b-dd1a85813207.pdf) • [8](https://www.comedy.co.uk/people/fiona_glascott/) Her starring turn as Rose Bourne came earlier, in the 2008 British comedy series Clone.[8](https://www.comedy.co.uk/people/fiona_glascott/)
**Julia.** In the [HBO Max](https://www.edgepedia.org/hbo-max) series Julia (2022 to 2023), Glascott played the literary agent and editor Judith Jones, the New York editor who fought to publish [Anne Frank](https://www.edgepedia.org/anne-frank)'s diary in the United States, translated [Jean Genet](https://www.edgepedia.org/jean-genet), edited John Updike, and recognized the merit of Mastering the Art of French Cooking.[9](https://parade.com/tv/fiona-glascott-interview-julia-hbo-max) • [10](https://www.lemonde.fr/culture/article/2024/06/23/julia-sur-max-la-cuisiniere-americaine-julia-child-reinventee-sous-les-traits-de-sarah-lancashire_6242948_3246.html) She appeared in 15 episodes of the series.[1](https://www.tvmaze.com/people/27950/fiona-glascott)
## Recent work
In Sherlock & Daughter (2025) she played Lady Violet Somerset in six episodes.[1](https://www.tvmaze.com/people/27950/fiona-glascott) Other recent credits include The Martini Shot (2023), in which she plays Mary, assistant to Matthew Modine's dying film director, and the 2019 comedy Supervized, set in a retirement home for aging superheroes in Ireland.[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html)
## Personal life
Glascott moved from Ireland to London to pursue acting and has lived there for well over a decade; in a 2018 Irish Times interview she placed her home in Peckham, south London.[11](https://www.irishtimes.com/culture/fiona-glascott-on-my-culture-radar-1.3712136) She met the actor Tom Brooke, known for The Death of Stalin and Bodyguard, while the two played a married couple in a live-to-TV theater production in London; they married on New Year's Eve and their daughter Ruby was born a year later.[4](https://www.irishexaminer.com/lifestyle/arid-30901707.html)
## References
1. [Fiona Glascott, TVmaze](https://www.tvmaze.com/people/27950/fiona-glascott)
2. [Fiona Glascott, Rotten Tomatoes](https://www.rottentomatoes.com/celebrity/fiona_glascott)
3. [Fiona Glascott, Metacritic](https://www.metacritic.com/person/fiona-glascott/)
4. [One to watch: Meet Irish actress Fiona Glascott, Irish Examiner (Shilpa Ganatra, 2 February 2019)](https://www.irishexaminer.com/lifestyle/arid-30901707.html)
5. [About Endgame press kit, Fiona Glascott biography (Mongrel Media)](https://s3.amazonaws.com/cdn.filmtrackonline.com/mongrelmedia/starcm_vault_root/images%2Ffiles%2Ff5%2Ff543af3a-81f9-43e6-a13b-dd1a85813207.pdf)
6. [Fiona Glascott: Filmographie, AlloCiné](https://www.allocine.fr/personne/fichepersonne-103956/filmographie/)
7. [Why This Fantastic Beasts: The Crimes of Grindelwald Cameo May Be a Major Plot Hole, Time (26 November 2018)](https://time.com/5463360/mcgonagall-fantastic-beasts/)
8. [Fiona Glascott (I), British Comedy Guide](https://www.comedy.co.uk/people/fiona_glascott/)
9. [Fiona Glascott Interview on Julia Season 2 on HBO Max, Parade](https://parade.com/tv/fiona-glascott-interview-julia-hbo-max)
10. [Julia, sur Max : la cuisinière américaine Julia Child réinventée, Le Monde (23 June 2024)](https://www.lemonde.fr/culture/article/2024/06/23/julia-sur-max-la-cuisiniere-americaine-julia-child-reinventee-sous-les-traits-de-sarah-lancashire_6242948_3246.html)
11. [Fiona Glascott: On My Culture Radar, The Irish Times (1 December 2018)](https://www.irishtimes.com/culture/fiona-glascott-on-my-culture-radar-1.3712136)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Screen people and creators › Screen actors of the Anglosphere and Europe › Irish actors › Surnames G to M*
*Initially written Sep 17, 2026 · Reviewed: Sep 17, 2026; Sep 20, 2026; Sep 30, 2026; Oct 25, 2026 · Edited: Sep 20, 2026; Oct 12, 2026; Oct 15, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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