Philip O'Sullivan is an actor and writer, known for Albert Nobbs (2011), Tristan + Isolde (2006) and Veronica Guerin (2003).
| Series | Vikings | Unknown | 2015 |
| Movie | Albert Nobbs | Unknown | 2012-02-22 |
| Movie | Belonging to Laura | Unknown | 2009 |
| Series | Pure Mule: The Last Weekend | Unknown | 2009 |
| Movie | Anner House | Unknown | 2007 |
| Series | The Tudors | Unknown | 2007-04-01 |
| Movie | The Tiger's Tail | Unknown | 2006 |
| Movie | Tristan + Isolde | Unknown | 2006 |
| Movie | Showbands II | Unknown | 2006 |
| Movie | The League of Gentlemen's Apocalypse | Unknown | 2005 |
| Series | Pure Mule | Unknown | 2005 |
| Movie | Showbands | Unknown | 2005 |
| Movie | The Baby War | Anthony | 2005-02-14 |
| Movie | The Return: On Set with Julie Walters | Unknown | 2004 |
| Movie | The Return | Unknown | 2003 |
| Movie | Veronica Guerin | Unknown | 2003 |
| Series | Glenroe | Unknown | 1999 |
| Series | The Ambassador | Unknown | 1998 |
| Series | Leave It to Mrs. O'Brien | Unknown | 1985 |
| Movie | Beyond the North Wind | Unknown | 1983 |
| Movie | Teresa's Wedding | Unknown | 1980 |
| Movie | S.O.S. Titanic | Unknown | 1979 |
| Series | The Burke Enigma | Unknown | 1978 |
| Movie | A Quiet Day in Belfast | Unknown | 1974 |