Aisling O'Sullivan (born in Tralee, County Kerry) is an Irish actress.
O'Sullivan attended the Gaiety School of Acting in Dublin and joined the Abbey Theatre in 1991.
In 2011 and 2012, she toured Ireland with Druid, playing the titular character in Big Maggie by John B. Keane.
At the National Theatre she played in Liolà, Mutabilitie, and The Cripple of Inishmaan.[1]
She played the grieving mother who commits suicide in Six Shooter, playwright Martin McDonagh's Oscar-winning short film.[2]
She is familiar to Irish television audiences as Dr. Cathy Costello from Series 1 to Series 5 in the drama series The Clinic.[3]
| 1996 | Michael Collins | Girl in Bed | ||
| 1997 | The Butcher Boy | Ma Brady | ||
| 1999 | The War Zone | Carol | ||
| 2000 | The Announcement | Liv | ||
| 2002 | The One and Only | Jenny | ||
| 2003 | The Actors | Rita | ||
| 2004 | Six Shooter | Woman | ||
| 2008 | A Film with Me in It | Policewoman | ||
| 2010 | Snap | Sandra | ||
| 2016 | The Secret Scripture | Eleanor Prunty | ||
| 2019 | Dark Lies the Island | Phylis |
| Year | Title | Role | Notes | |
|---|---|---|---|---|
| 1995 | Runway One | Frances | Television film | |
| 1995 | Cracker | Aileen | Episode: "Best Boys: Part 1" | |
| 1998 | The American | Claire De Cintré | Television film | |
| 1999 | Life Support | Dr. Katherine Doone | 6 episodes | |
| 2000 | The Wyvern Mystery | Vrau | Television film | |
| 2000 | Shockers | Helena Turner | Episode: "Parent's Night" | |
| 2002 | Me and Mrs Jones | Max | Television film | |
| 2003–2008 | The Clinic | Dr. Cathy Costello | 49 episodes | |
| 2005 | The Baby War | Mary | Television film | |
| 2010–2013 | Raw | Fiona Kelly | 24 episodes | |
| 2021 | Frank of Ireland | Maelbhina | Episode: "A Good Few Angry Women" |