Name	Known for
Alicia Silverstone Fiona Fox Fiona Fox See fewer	Clueless (1995)
Jason O'Mara Declan Murphy Declan Murphy See fewer	Agents of S.H.I.E.L.D. (2013)
Dearbhla Molloy Isidora Murphy Isidora Murphy See fewer	No Reservations (2007)
Simone Kirby Una Murphy Una Murphy See fewer	Kneecap (2024)
Ruth Codd Garda Róisín Doherty Garda Róisín Doherty See fewer	How to Train Your Dragon (2025)
Leonardo Taiwo Musa Musa See fewer	Irish Blood (2025)
Djouliet Amara Tess Tess See fewer	The Big Door Prize (2023)
Wendy Crewson Mary Mary See fewer	Air Force One (1997)
Vincent Walsh Johnny McIntyre Johnny McIntyre See fewer	Played (2013)
Stuart Graham Father Al Father Al See fewer	Hunger (2008)
Grainne Keenan Siobhan Donovan (as Gráinne Keenan) Siobhan Donovan (as Gráinne Keenan) See fewer	The Foreigner (I) (2017)
Stephen Hogan Finn Murphy Finn Murphy See fewer	The Foreigner (I) (2017)
Gavin O'Connor Sergeant Claude Sergeant Claude See fewer	The Hunt for Raoul Moat (2023)
Faith Delaney Little Fiona Little Fiona See fewer	The Death of Robin Hood (2026)
Áine Ní Ghráinne Viv Viv See fewer	Irish Blood (2025)
Michael James Ford Bran Donovan Bran Donovan See fewer	Becoming Jane (2007)
Barry John Kinsella Leo Travers Leo Travers See fewer	Maxine (2022)
Dave Rowe Garda Scott Henderson Garda Scott Henderson See fewer	Irish Blood (2025)