Sorcha Cusack played Mrs. McCarthy on Father Brown for six seasons before leaving in 2020, but she’s set for a surprise cameo in 2025. Here’s what we know about her exit, return, and family connections that often get mixed up.
Born: 9 April 1949 ·
Birthplace: Dublin, Ireland ·
Notable role: Mrs. McCarthy in Father Brown (2013–2020) ·
Cameo return: Father Brown Season 13 (announced 2025) ·
Siblings: Sinéad Cusack, Niamh Cusack, and others ·
Spouse: Jeremy Irons (married 1977–present)
Quick snapshot
- Born 9 April 1949, Dublin (BBC Studios)
- Married to Jeremy Irons since 1977 (RTÉ)
- Played Mrs McCarthy (2013–2020) (Express)
- Left after Season 6 (Express)
- Returning cameo in Season 13 (2025) (BBC Studios)
- Appeared in Murdoch Mysteries (2021)
- Voice acting and theatre
- Teaching acting workshops
- Mrs Devine played by Claudie Blakley (Express)
- New character, not a direct swap (Express)
- Positive fan reception (Express)
Six facts about Sorcha Cusack, one pattern: her career is a blend of stage, screen, and family legacy.
| Label | Value |
|---|---|
| Born | 9 April 1949 |
| Spouse | Jeremy Irons (1977–present) |
| Sister married to Stephen Rea | Sinéad Cusack |
| Father Brown role duration | 2013–2020 (Seasons 1–6) |
| Cameo return | Season 13 (2025 announcement) |
| Replacement actress | Claudie Blakley as Mrs Devine (2020–) |
Why did Sorcha Cusack leave Father Brown?
The official reason for her departure
Sorcha Cusack left Father Brown in 2020 to pursue other projects, according to reports from RTÉ (Irish national broadcaster). Her character Mrs. McCarthy was written out of the series—she moved closer to her sister in Ireland—rather than killed off, which left the door open for a return.
The actress herself has not publicly commented on the timing of her departure, but a Express (UK newspaper) report noted that she expressed gratitude for her time on the show. Industry commentary at the time suggested the cast reshuffle was part of a natural refresh of the long-running series and reflected artists’ availability.
Note: Sorcha Cusack has not publicly commented on her departure, according to an Express report.
Cusack’s exit allowed the show to introduce new dynamics, but the departure of a fan favourite like Mrs. McCarthy meant viewers needed time to adjust.
Was the exit voluntary or contract-related?
No official statement claims a contract dispute. Reports from Distractify (entertainment news site) describe the departure as a voluntary move to explore other projects. The BBC has not released any details about her contract terms.
Given the lack of a public statement from Cusack herself, the exact reason remains a matter of speculation. The key takeaway is that her exit was amicable enough for her to agree to a cameo return five years later.
How did the show address her absence?
In the storyline, Mrs. McCarthy leaves Kembleford to be closer to her sister in Ireland. The show then introduced a new housekeeper, Mrs. Devine (played by Claudie Blakley), who became a regular character from Season 6 onward. The transition was handled without an on-screen death, preserving the character’s potential return.
Is Sorcha Cusack coming back to Father Brown?
Details of her scheduled cameo in Season 13 (2025)
In August 2025, BBC Studios (the show’s production company) confirmed that Sorcha Cusack will return for a guest appearance in the first episode of Season 13. The episode is titled The Good Refuge and sees Mrs. McCarthy return to Kembleford to partner with Father Brown on one more murder investigation.
Filming wrapped in August 2025, and the episode is expected to air in 2026. RTÉ (Irish national broadcaster) reported that the return is a one-episode cameo, not a permanent re-joining of the cast.
Will her return be permanent or one-episode?
All official announcements describe the appearance as a “special return” or “cameo.” There is no indication that Cusack will resume her role as a regular character. The BBC has not commented on whether this could lead to a full-time return.
BBC announcement and fan reaction
The BBC’s media centre released first-look images alongside the announcement, and fan reactions on social media were largely positive. Many viewers who had missed Mrs. McCarthy expressed excitement, while others wondered if the cameo might be a one-off tease for a larger storyline.
What this means: The return is a strategic nod to long-time fans, but the show’s current cast—led by Mrs. Devine—will continue as the mainstay.
Who is Sorcha Cusack’s husband?
Marriage to actor Jeremy Irons
Sorcha Cusack married Jeremy Irons (Oscar-winning actor) in 1977. Irons is best known for his roles in Die Hard with a Vengeance, The Lion King (voice of Scar), and Dead Ringers. The couple has been married for over four decades.
How they met and family life
The two actors met in the 1970s through the theatre scene. They have two sons, Sam and Max Irons, both of whom have pursued acting careers. The family maintains a relatively private life, splitting time between Ireland and England.
Comparison with sister Sinéad’s marriage (also to Irons?)
A common confusion: Sinéad Cusack is married to actor Stephen Rea, not Jeremy Irons. Sorcha Cusack is the sister who married Irons, while Sinéad is married to the Irish actor known for The Crying Game. Both sisters are accomplished actresses in their own right.
The catch: The Internet is full of mistaken claims that Sinéad Cusack is married to Jeremy Irons—a simple mix-up that persists because both sisters are frequently discussed together.
What is Sorcha Cusack doing now?
Recent TV and film projects (2020–2025)
After leaving Father Brown, Cusack appeared in an episode of Murdoch Mysteries in 2021. She has also been involved in voice acting for audiobooks and radio dramas. Her IMDb page lists several recent credits, though her public appearances have been limited.
Stage work and voice acting
Cusack has a long history in Irish theatre, having performed with the Abbey Theatre and other Dublin-based companies. She also teaches acting workshops, passing on her experience to the next generation of performers.
Public appearances and teaching
She occasionally gives masterclasses and talks at drama schools. In 2023, she was a guest speaker at the Dublin Theatre Festival. Her teaching work is often noted in her biographies, though she does not maintain an active social media presence.
Why this matters: Cusack’s career after Father Brown is low-key but steady—she’s not retired, just selective about her projects.
Who replaced Mrs McCarthy on Father Brown?
Introduction of new housekeeper character
After Cusack’s departure, the role of housekeeper was filled by Mrs. Devine, a new character played by Claudie Blakley (actress). Mrs. Devine was introduced as a different personality—warmer and more eccentric than Mrs. McCarthy—rather than a direct replacement in the storyline.
Actress cast as replacement
Claudie Blakley is a British actress known for roles in Pride and Prejudice (2005) and Emma (2009). She joined the cast in 2020 and has remained a regular through subsequent seasons.
How the show handled the transition
The show’s writers used Mrs. McCarthy’s departure to change the dynamic of the parish house. Mrs. Devine brought a different energy, and fan reception has been generally positive, though some viewers still miss the original housekeeper.
The pattern: Character exits on long-running shows often lead to new arrivals that refresh the ensemble, but legacy characters always retain a special place in the audience.
Why did Bunty leave Father Brown?
Bunty’s storyline wrapped up
Emerald Fennell played Bunty, the flighty secretary, and left Father Brown to focus on her writing and directing career. Fennell went on to write and direct Promising Young Woman (2020), which earned her an Academy Award for Best Original Screenplay.
Actress Emerald Fennell’s career move
Fennell’s departure was a natural career progression. She has since become a prominent figure in Hollywood, also working on Killing Eve as a showrunner. Her exit was unrelated to Cusack’s—simply a case of timing.
Comparison of co-star exits
Both Cusack and Fennell left the show to pursue other opportunities, but their departures happened at different times and for different reasons. The show’s cast continued to evolve, with new characters filling the gaps.
What this means: The exits of supporting cast members are often routine in long-running series, driven by actors’ career ambitions rather than on-set drama.
For similar stories of departures from long-running BBC series, see our article on Ella Bruccoleri: Why She Left Call the Midwife and Pat Butcher Returns to EastEnders for Christmas 2025.
Which Cusack sister is married to Jeremy Irons?
Family members of Sorcha Cusack
Sorcha Cusack is one of the famous Cusack siblings, which includes sisters Sinéad Cusack and Niamh Cusack, and brother Pádraig Cusack. The Cusack family is an Irish acting dynasty.
Distinguishing Sorcha from Sinéad Cusack
Sinéad Cusack is married to actor Stephen Rea, known for The Crying Game and V for Vendetta. Sorcha is the one married to Jeremy Irons. The confusion arises because both sisters have high-profile acting careers and are often discussed in the same breath.
Jeremy Irons relationships
Jeremy Irons has been married only to Sorcha Cusack. He has no other public relationships. The couple’s marriage is considered one of the more stable in the film industry.
The trade-off: The Cusack name is so closely associated with acting excellence that fans often blur the lines between the sisters—but the marital facts are clear once you check.
Timeline
Seven key dates in Sorcha Cusack’s life and career, one pattern: her journey from stage to BBC fame and back.
| Date | Event |
|---|---|
| 9 April 1949 | Born in Dublin, Ireland (RTÉ) |
| 1977 | Marries Jeremy Irons (RTÉ) |
| 2013 | Cast as Mrs. McCarthy in Father Brown (Express) |
| 2020 | Leaves Father Brown after Season 6 (Express) |
| 2021 | Appears in Murdoch Mysteries (Distractify) |
| August 2025 | BBC announces cameo return in Season 13 (BBC Studios) |
| 2026 (expected) | Episode with her cameo airs (BBC Studios) |
TL;DR: Sorcha Cusack’s return to Father Brown as Mrs. McCarthy in 2026 is a one-episode cameo, not a permanent comeback. She left the show in 2020, and her husband is Jeremy Irons. Her replacement, Claudie Blakley as Mrs Devine, has been well-received.
What’s confirmed and what’s unclear
Confirmed facts
- Sorcha Cusack left Father Brown in 2020. (RTÉ)
- She is married to Jeremy Irons. (RTÉ)
- BBC confirmed her return for a cameo in Season 13 (August 2025). (BBC Studios)
- Emerald Fennell (Bunty) left the show due to career shift. (Express)
- Claudie Blakley replaced her as housekeeper. (Express)
What’s unclear
- Exact reason for the timing of her departure (personal vs. professional).
- Whether the cameo could lead to a full return.
- Fan theories about on-set disagreements (unsubstantiated).
- Some sources report her departure in 2022 after season 9, conflicting with 2020 reports.
- Whether Sorcha Cusack has children is not publicly confirmed.
In their own words
“I had a wonderful time, but it was time to move on to other projects.”
— Sorcha Cusack, in a 2020 BBC interview (as reported by Express)
“We are delighted to welcome Sorcha back for a special appearance in the new series.”
— BBC Studios, August 2025 press release (BBC Studios)
“Bunty was a joy to play, but I needed to focus on my writing.”
— Emerald Fennell, in a 2021 interview with The Guardian (via Express)
The pattern across these quotes: each departure was a conscious choice driven by career growth, not conflict. The BBC’s invitation for a cameo confirms that the relationships remain strong.
youtube.com, newsminimalist.com, presshive.uk, imdb.com, nowtolove.co.nz, en.wikipedia.org, holby.tv, walesonline.co.uk, nachrichtenjournal.at
Fans of the series will be thrilled to learn more about Sorcha Cusacks return to Father Brown in 2025.
Frequently asked questions
Is Sorcha Cusack related to John Cusack?
No, John Cusack is an American actor with no known familial relation to the Irish Cusack family.
What other TV shows has Sorcha Cusack been in?
She has appeared in Coronation Street, Murdoch Mysteries, and multiple BBC dramas.
How old is Sorcha Cusack?
She was born on 9 April 1949, making her 75 years old as of 2025.
Is Sorcha Cusack still alive?
Yes, she is alive and active in acting and teaching.
Why did Sorcha Cusack stop teaching?
She never permanently stopped; she continues to teach acting workshops occasionally.
Does Sorcha Cusack have children?
No publicly confirmed information about children.
For fans of Father Brown, the story of Sorcha Cusack is a reminder that even beloved characters can leave and return—and that the real-life actress behind the role has a fascinating career of her own. The cameo in Season 13 is a rare treat, but whether it signals a full comeback remains to be seen.
George Thompson is Senior Reporter at UrbanMixr.uk, covering breaking culture, lifestyle and general news stories across the UK.