Name	Known for
Owen McDonnell Ernest Timmons / Arthur Ernest Timmons / Arthur See fewer	Single-Handed (2007)
Peter Coonan Sean Purcell Sean Purcell See fewer	Love/Hate (2010)
Seán T. Ó Meallaigh Tom Morgan Tom Morgan See fewer	Vikings (2013)
Lochlann O'Mearáin Michael Collins Michael Collins See fewer	Outlander (2014)
J.D. Kelleher The O'Rahilly The O'Rahilly See fewer	Macbeth (II) (2018)
Levi O'Sullivan Eoin Eoin See fewer	Amber (2014)
Jeanne O'Connor Molly Foley Molly Foley See fewer	Éirí Amach Amú (2016)
Enda Oates James Connolly James Connolly See fewer	Damo and Ivor (2013)
Jack Walsh Tom Clarke Tom Clarke See fewer	The Northman (2022)
Ian Toner John Purcell John Purcell See fewer	Dominion Creek (2015)
Mary Lou McCarthy Sally Sally See fewer	Pursuit (I) (2015)
Gavin Drea Mick Mick See fewer	Daisy Jones & The Six (2023)
Tim Creed Eamon de Valera Eamon de Valera See fewer	Dominion Creek (2015)
Anna Tran Chinese Woman (as Hong Tran) Chinese Woman (as Hong Tran) See fewer	The Determined Heart (2019)
Eva-Jane Gaffney Grace Morgan Grace Morgan See fewer	The Lobster (2015)
Aobh Magan Aisling Morgan Aisling Morgan See fewer	Angel (I) (2012)
Sam McGovern Willie Pearse (uncredited) Willie Pearse (uncredited) See fewer	Michael Inside (2017)