Derry Girls The Agreement (Season 3, Episode 7)
TV Episode | 48 min | Comedy

Derry Girls

The Agreement (Season 3, Episode 7)

TV Episode | 48 min | Comedy

Erin and Orla's joint 18th birthday, threatens to be overshadowed. Meanwhile the family try to get their heads around the outcome of the vote, the friends realize that they are not ready for what the future holds.

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Cast	+ Add Cast
49 cast members

Name	Known for
Saoirse-Monica Jackson Erin Quinn Erin Quinn See fewer	The Flash (I) (2023)
Nicola Coughlan Clare Devlin Clare Devlin See fewer	Derry Girls (2018)
Jamie-Lee O'Donnell Michelle Mallon Michelle Mallon See fewer	Derry Girls (2018)
Dylan Llewellyn James Maguire James Maguire See fewer	Big Boys (2022)
Louisa Harland Orla McCool Orla McCool See fewer	Renegade Nell (2024)
Tara Lynne O'Neill Mary Quinn Mary Quinn See fewer	Becoming Jane (2007)
Kathy Kiera Clarke Sarah McCool Sarah McCool See fewer	Bloody Sunday (2002)
Siobhán McSweeney Sister Michael (as Siobhan McSweeney) Sister Michael (as Siobhan McSweeney) See fewer	Derry Girls (2018)
Tommy Tiernan Gerry Quinn Gerry Quinn See fewer	Wolfwalkers (2020)
Ian McElhinney Joe McCool Joe McCool See fewer	Hamlet (1996)
Art Campion Father Peter Father Peter See fewer	Sing Street (2016)
Leah O'Rourke Jenny Joyce Jenny Joyce See fewer	Derry Girls (2018)
Beccy Henderson Aisling Aisling See fewer	The Dark Crystal: Age of Resistance (2019)
Paul Mallon Dennis Dennis See fewer	Derry Girls (2018)
Claire Rafferty Miss Mooney Miss Mooney See fewer	The Fall (I) (2013)
Kevin McAleer Colm McCool Colm McCool See fewer	Resurrection Man (1998)
Julia Dearden Maureen Malarkey Maureen Malarkey See fewer	Northanger Abbey (2007)
Amelia Crowley Deirdre Mallon Deirdre Mallon See fewer	Ella Enchanted (2004)
Philippa Dunne Geraldine Devlin Geraldine Devlin See fewer	The Nevers (2021)
Robert Calvert Jim Jim See fewer	EastEnders (1985)
Ardal O'Hanlon Eammon Eammon See fewer	Father Ted (1995)
Bronagh Gallagher The Commitment The Commitment See fewer	Pulp Fiction (1994)
Liam Neeson Chief Constable Byers Chief Constable Byers See fewer	Kinsey (2004)
Chelsea Clinton Chelsea Clinton Chelsea Clinton See fewer	Derry Girls (2018)
Donna Traynor Donna Traynor Donna Traynor See fewer	Derry Girls (2018)
Sophie Brown Baby Anna Baby Anna See fewer	Derry Girls (2018)
Zoe Brown Baby Anna Baby Anna See fewer	Derry Girls (2018)
Desmond Eastwood Benny Benny See fewer	Normal People (2020)
Conor Lowry Young Boy Young Boy See fewer	Say Nothing (2024)
Clara Geraghty Communion Girl Communion Girl See fewer	Derry Girls (2018)
Cara Quin Communion Girl Communion Girl See fewer	Derry Girls (2018)
Cara Mailey Young Girl Young Girl See fewer	Derry Girls (2018)
Bronagh Taggart Intercom (voice) Intercom (voice) See fewer	Guard (2017)
James Stockdale Tomas Tomas See fewer	Here's Looking at You, Kid (2018)
Billy Carter Mailman Mailman See fewer	The Crowded Room (2023)
Ava Grace Mcaleese Baby Anna Baby Anna See fewer	Derry Girls (2018)
Mya Rose McAleese Baby Anna Baby Anna See fewer	Derry Girls (2018)
Caoimhe Farren Janet Taylor Janet Taylor See fewer	The Woman in the Wall (2023)
Jay Duffy Harry Harry See fewer	Vikings (2013)
Laurie Kynaston Philip Philip See fewer	Cradle to Grave (2015)
Francis Mezza Dee Dee See fewer	Showtrial (2021)
Brenock O'Connor Jon Jon See fewer	Game of Thrones (2011)
Eleanor Methven Aunt Bridie Aunt Bridie See fewer	Becoming Jane (2007)
Michael Byers Officer Lennox Officer Lennox See fewer	Derry Girls (2018)
Serena Terry Officer Reid Officer Reid See fewer	Derry Girls (2018)
Vanessa Ifediora Laurie Laurie See fewer	Belfast (2021)
Sean Coyle Radio Announcer (voice) (uncredited) Radio Announcer (voice) (uncredited) See fewer	Derry Girls (2018)
Matthew McCausland Party Goer (uncredited) Party Goer (uncredited) See fewer	How to Train Your Dragon (2025)
Conor O'Donnell Waiter (uncredited) Waiter (uncredited) See fewer	The Way Back (II) (2016)