Name	Known for
Alex Murphy Conor MacSweeney Conor MacSweeney See fewer	The Young Offenders (2016)
Dominic MacHale Sergeant Healy Sergeant Healy See fewer	The Young Offenders (2018)
Chris Walley Jock O'Keeffe Jock O'Keeffe See fewer	The Last Voyage of the Demeter (2023)
Jennifer Barry Siobhan Walsh Siobhan Walsh See fewer	The Young Offenders (2018)
Thomas McCarthy JP JP See fewer	The Young Offenders (2016)
Claudia Rose Long Niamh Niamh See fewer	The Young Offenders (2018)
Hilary Rose Máiréad MacSweeney Máiréad MacSweeney See fewer	The Young Offenders (2016)
Orla Fitzgerald Orla Walsh Orla Walsh See fewer	The Wind that Shakes the Barley (2006)
Demi Isaac Oviawe Linda Walsh Linda Walsh See fewer	The School for Good and Evil (2022)
P.J. Gallagher Principal Barry Walsh Principal Barry Walsh See fewer	Hamlet (II) (2005)
Rachel O'Connell Nancy Madigan Nancy Madigan See fewer	The Young Offenders (2018)
Daniel Power Gavin Madigan Gavin Madigan See fewer	Christy (2019)
Shane Casey Billy Murphy Billy Murphy See fewer	The Wind that Shakes the Barley (2006)
Ciaran Bermingham Supt. Flynn Supt. Flynn See fewer	Conversations with My Dead Father (2021)
Adrian Scanlan Derek Doherty Derek Doherty See fewer	The Young Offenders (2018)
Cian Hurley Bobby Gilligan Bobby Gilligan See fewer	The Young Offenders (2018)
John Murphy Guard Guard See fewer	The Young Offenders (2018)
Eoghan Moloney Compere Compere See fewer	Mug (2018)
Penny Richardson Star Star See fewer	The Young Offenders (2018)
Nola Richardson Star Star See fewer	The Young Offenders (2018)
Muhammad Ali Self (archive footage) Self (archive footage) See fewer	The Greatest (1977)