| Production | Played by | Opening Night |
|---|---|---|
| Observe the Sons of Ulster Marching towards the Somme 1985 (Peacock) | Maguire, Oliver | Monday, 18 February 1985 |
| Observe the Sons of Ulster Marching towards the Somme 1985 (Abbey) | Maguire, Oliver | Monday, 2 December 1985 |
| Observe the Sons of Ulster Marching towards the Somme 1994 (Abbey) | McCusker, Frank | Wednesday, 19 October 1994 |
| Observe the Sons of Ulster Marching towards the Somme 1995 (Abbey) | McCusker, Frank | Wednesday, 12 July 1995 |
| Observe the Sons of Ulster Marching towards the Somme 1995 (Tour) | McCusker, Frank | Friday, 18 August 1995 |
| Observe the Sons of Ulster Marching towards the Somme 1996 (Tour) | McCusker, Frank | Wednesday, 6 March 1996 |
| Observe the Sons of Ulster Marching towards the Somme 2004 (Abbey) | McDonnell, Owen | Monday, 27 September 2004 |
| Observe the Sons of Ulster Marching towards the Somme 2016 (Tour) | Kellegher, Andy | Wednesday, 29 June 2016 |
| Observe the Sons of Ulster Marching towards the Somme 2016 (Abbey) | Kellegher, Andy | Tuesday, 9 August 2016 |
