Name	Known for
Ryan Andrews Sean Cassidy Sean Cassidy See fewer	Prodigal Son (2011)
Asa Cuthbert Tim O'Leary Tim O'Leary See fewer	Fair City (1989)
Niamh Daly Debbie O'Brien Debbie O'Brien See fewer	Heartbeat (1992)
Jenny Dixon Kerri-Ann Boyle Kerri-Ann Boyle See fewer	Fair City (1989)
Leah Egan Louise Doyle Louise Doyle See fewer	Life Begins Now (2017)
Steve Gunn Dan Keating Dan Keating See fewer	The Last Rifleman (2023)
Caroline Harvey Farrah Clayton Farrah Clayton See fewer	The Crucible (2024)
Tom Hopkins Christy Phelan Christy Phelan See fewer	Vikings (2013)
Alan Howley Eoghan O'Brien Eoghan O'Brien See fewer	Harry Wild (2022)
Amilia Keating Katy O'Brien (as Amilia Clarke Stewart) Katy O'Brien (as Amilia Clarke Stewart) See fewer	The Imperium Stone (2021)
George McMahon Mondo O'Connell Mondo O'Connell See fewer	Fair City (1989)
Eamon Morrissey Cass Cassidy Cass Cassidy See fewer	This Is My Father (1998)
Mick Nolan Ray O'Connell Ray O'Connell See fewer	The Commitments (1991)
Ciara O'Callaghan Yvonne Doyle Yvonne Doyle See fewer	Harry Wild (2022)
Liana O'Cleirigh Laura Halpin Laura Halpin See fewer	Val Falvey TD (2009)
Aisling O'Neill Carol Foley Carol Foley See fewer	Basic Instinct 2 (2006)
David O'Sullivan Decco Bishop Decco Bishop See fewer	Fair City (1989)
Karl Shiels Robbie Quinn Robbie Quinn See fewer	Batman Begins (2005)