The beloved sitcom phenomenon returns as Agnes Brown (Brendan O’Carroll) continues her reign as Ireland’s most meddlesome matriarch in Mrs Brown’s Boys Season 5. This new series delivers more of the show’s signature blend of outrageous humor, fourth-wall-breaking antics, and heartwarming family chaos as Agnes sticks her nose into every aspect of her children’s lives – whether they want her to or not. From disastrous matchmaking schemes to interfering in neighborhood dramas, Agnes’ unique brand of “help” guarantees laughter and pandemonium in equal measure.

Filmed before a live studio audience with its trademark improvisational energy, this season promises fresh calamities including a controversial parish raffle, a mistaken identity fiasco at the local pub, and Agnes’ bold attempt to modernize by joining TikTok (with predictably chaotic results). The series continues its winning formula of crude jokes, slapstick mishaps, and unexpected moments of genuine warmth that have made it a ratings juggernaut for over a decade.

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Mrs Brown’s Boys Season 5 Cast list:

1- Brendan O’Carroll as Agnes Brown

The creator and driving force behind the series, Brendan O’Carroll delivers another masterclass in comedy as the irrepressible Agnes Brown. His flawless timing and improvisational skills keep the character feeling fresh, whether she’s delivering cutting one-liners or getting physically tangled in her own schemes. This season sees Agnes at her most outrageous yet, particularly in an episode where she “helps” at the local school’s career day with disastrous results.

O’Carroll’s performance remains a remarkable feat – his complete embodiment of the brash but loving matriarch makes audiences forget they’re watching a male actor in drag. The veteran comedian continues to find new ways to push boundaries while maintaining the character’s essential warmth, ensuring Agnes remains one of television’s most unique comic creations.

2- Jennifer Gibney as Cathy Brown

Jennifer Gibney (O’Carroll’s real-life wife) returns as Agnes’ long-suffering daughter Cathy, whose exasperated reactions to her mother’s antics provide many of the show’s biggest laughs. This season explores Cathy’s attempts to assert more independence, though Agnes’ interference inevitably derails her plans. Gibney’s chemistry with O’Carroll remains the emotional core of the series, particularly in quieter moments that reveal their characters’ genuine affection.

A highlight comes when Cathy finally stands up to Agnes in a dramatic confrontation – only to immediately need her mother’s help in a ridiculous crisis. Gibney’s ability to balance comedy with heartfelt sincerity makes Cathy one of the show’s most relatable characters.

3- Paddy Houlihan as Dermot Brown

Paddy Houlihan continues to shine as Dermot, Agnes’ hapless son whose bad luck seems to attract trouble. This season puts Dermot through his most outrageous misfortunes yet, including accidentally becoming the face of a questionable product and getting trapped in an increasingly absurd series of misunderstandings. Houlihan’s physical comedy skills are on full display, particularly in a slapstick-heavy episode where Dermot tries (and fails) to keep a secret from his mother.

The actor brings an endearing vulnerability to the role that makes Dermot’s constant humiliations both hilarious and oddly touching. His scenes with O’Carroll showcase some of the show’s best mother-son dynamics.

4- Eilish O’Carroll as Winnie McGoogan

Eilish O’Carroll (Brendan’s real-life sister) returns as Agnes’ long-time friend and occasional rival Winnie, delivering her trademark filthy one-liners with perfect timing. This season explores Winnie’s new business venture – a disastrously mismanaged mobile beauty service – leading to some of the show’s most outrageous visual gags. The actress’ natural chemistry with her brother creates magic on screen, particularly when their characters team up for ill-advised schemes.

A standout episode sees Winnie and Agnes accidentally becoming local celebrities after a viral video misunderstanding, showcasing O’Carroll’s gift for physical comedy and improvisation.

5- Dermot O’Neill as Grandad Brown

The brilliant Dermot O’Neill continues to steal scenes as the mischievous Grandad Brown, whose dodgy memory and inappropriate comments provide constant laughs. This season gives Grandad more prominence, including a heartwarming storyline about him reconnecting with an old flame (with typically chaotic results). O’Neill’s ability to deliver outrageous lines with complete innocence remains a comedy masterclass.

His deadpan delivery of shocking revelations about the family’s past becomes a running gag throughout the season, each more scandalous than the last. Yet the actor always ensures Grandad remains lovable beneath the cheekiness.

6- Danny O’Carroll as Buster Brady

Danny O’Carroll (Brendan’s real-life son) returns as Agnes’ loyal but dim son-in-law Buster, whose childlike enthusiasm leads him into constant trouble. This season explores Buster’s attempts to become more responsible, with predictably disastrous results. Danny’s natural charm and comic timing shine, particularly in physical comedy sequences where Buster’s plans go spectacularly wrong.

A highlight comes when Buster tries to impress Agnes by cooking Christmas dinner, leading to one of the show’s most elaborate and hilarious kitchen disasters. The actor’s real-life family connection with Brendan adds authenticity to their on-screen relationship.

7- Pat Shields as Mark Brown/Redser Brown

Pat Shields continues to pull double duty as twins Mark and Redser, showcasing his versatility in playing two completely different personalities. This season features an ambitious episode where both characters appear together more than ever before, requiring Shields to switch between personas rapidly. His ability to make both brothers distinct yet believable remains impressive.

Mark gets more focus this season as he navigates relationship troubles, while Redser’s dodgy dealings lead to some of the show’s most outrageous plotlines. Shields’ comic timing ensures both characters remain fan favorites.

8- Fiona O’Carroll as Maria Brown/Nicholson

Fiona O’Carroll (Brendan’s real-life daughter) returns as Maria, bringing warmth and humor to Agnes’ most level-headed daughter. This season explores Maria’s struggles to balance her own family life with her mother’s constant demands for attention. Fiona’s naturalistic performance grounds the more outlandish comedy, particularly in scenes where Maria serves as the voice of reason.

Her chemistry with the rest of the cast – especially in family gathering scenes – adds authenticity to the show’s chaotic but loving dynamic. A standout moment comes when Maria finally loses her temper with Agnes in a cathartic outburst that quickly turns comedic.

9- Fiona Gibney as Sharon McGoogan

Fiona Gibney continues to delight as Sharon, Winnie’s long-suffering daughter who often bears the brunt of both her mother and Agnes’ meddling. This season gives Sharon more independence as she pursues her own romantic interests – though naturally, Agnes can’t resist interfering. Gibney’s expressive reactions to the madness around her provide many laugh-out-loud moments.

Her character’s growing confidence leads to some hilarious confrontations with Agnes, showcasing Gibney’s excellent comic timing. A particularly memorable scene sees Sharon finally giving Agnes a taste of her own medicine.

10- Conor Moloney as Father Damien

Conor Moloney returns as the put-upon Father Damien, who faces his greatest challenge yet when Agnes decides to “help” with parish affairs. This season features some of the character’s most outrageous moments, including an unforgettable sequence where he gets trapped in one of Agnes’ schemes during a important church event. Moloney’s ability to maintain his character’s dignity amidst the madness makes his scenes particularly funny.

His exasperated chemistry with O’Carroll reaches new heights this season, particularly in an episode where Agnes “volunteers” to revamp the church’s social media presence with disastrous results.

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Why Fans Will Love This Season

• More outrageous Agnes schemes – from her attempt to become a social media influencer to meddling in local politics

• Bigger physical comedy set pieces – including an elaborate disaster at a wedding and a chaotic family camping trip

• Surprising emotional moments – particularly in episodes exploring Agnes’ vulnerabilities

• Fresh character dynamics – with new pairings and conflicts among the ensemble

• The show’s trademark blend of crude humor and genuine heart

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Don’t Miss the Return of TV’s Funniest Family

Mrs Brown’s Boys Season 5 premieres August 1, 2025 on BBC One, promising more of the chaotic comedy that has made it one of Britain’s most beloved sitcoms. Whether you’re a longtime fan or new to the madness, this season delivers everything you love about Agnes Brown and her gloriously dysfunctional family.