Name	Known for
David Crowley Oisin Oisin See fewer	Love, Rosie (2014)
Hannah Crowley Sarah-Jane Belle Sarah-Jane Belle See fewer	Beached (IV)
Ned Dennehy Archie Archie See fewer	Good Omens (2019)
Philip Judge Doctor Doctor See fewer	Flick (II) (2000)
Lewis Magee Spuddy Spuddy See fewer	Fair City (1989)
Ruth McCabe Grano Grano See fewer	My Left Foot (1989)
Ruth McGill Woman in Labour Woman in Labour See fewer	Leap Year (2010)
Peter O'Byrne C.A.B. Agent C.A.B. Agent See fewer	The Bright Side (II) (2020)
Tadhg O'Keeffe Boy on Street Boy on Street See fewer	Love/Hate (2010)
Tom O'Mahony Tarquin Tarquin See fewer	Damo and Ivor (2013)
David O'Meara Richard Belle Richard Belle See fewer	Inside (1985)
Enda Oates Garda PJ Garda PJ See fewer	Damo and Ivor (2013)
Andy Quirke Ivor Itchdaddy Ivor Itchdaddy See fewer	Damo and Ivor (2013)
Jim Roche Garda Denny Garda Denny See fewer	The Last Duel (2021)
Graeme Singleton Maggot Maggot See fewer	Damo & Ivor The Movie (2018)