Question: What nationality is Breon O'Casey's father?

Nayelly Hernández
Nayelly Hernández( born 23 February 1986) is a former Mexican female professional squash player.
She has represented Mexico internationally in several international competitions including the Central American and Caribbean Games, Pan American Games, Women's World Team Squash Championships.
Nayelly achieved her highest career ranking of 57 in October 2011 during the 2011 PSA World Tour.
Her husband Chris Walker whose nationality is English is also a professional squash player.
She joined the Trinity College in 2008 as the first Mexican female to join a US college for squash and graduated in 2010.
Khalid al-Habib
Khalid al- Habib also believed to use the nom de guerre Khalid al Harbi is an Al- Qaeda leader who has overseen Al- Qaeda operations in Afghanistan.
In 2005 it was reported that al- Habib died in a US missile strike on the Pakistani village of Damadola though it is unclear whether this is the case as Pakistani officials have claimed that no Al- Qaeda leaders died in the attack.
al- Habib's nationality is not clear with sources claiming he may be Egyptian or Moroccan.
Paul Casey (Gaelic footballer)
Paul Casey( born 14 October 1981) is an Irish Gaelic footballer who played for Dublin and currently plays his club football for Lucan Sarsfields.
He is a wing- back.
He captained Dublin during their Leinster Minor Football victory in 1999 and also won an under 21 medal in 2002.
He made his league debut for Dublin in 2002 against Offaly.
Casey's father was a Munster Minor Football Championship winner with Kerry in 1968.
Paul has won seven Leinster Senior Football Championship medals with Dublin in 2002, 2005, 2006, 2007, 2009, 2011 and 2012, four as a starter and three as a panelist.
He won a 2006 Sigerson Cup medal with DCU with a win over Queens University Belfast and was vice captain on this winning team.
Captain was current Dublin team mate Bryan Cullen.
Paul also won a Leinster minor medal in 1999, and an Under 21 Leinster medal in 2002.
Paul was on Dublin's winning team for the 2008 O'Byrne Cup winning team which defeated Longford in the final.
Paul Casey was on the Leinster and all- Ireland winning panel for Dublin in 2011.
He made his championship debut for Dublin in 2002 against Carlow in the Leinster Championship at Dr Cullen Park, Alan Brogan and Barry Cahill also made their debut the same day.
He retired from inter county football in October 2012.
He got engaged to long term girlfriend the following month November 2012.
They plan on getting married the end of 2013.
Breon O'Casey
Breon O'Casey (30 April 1928 – 22 May 2011), the son of actress Eileen, née Reynolds, and playwright Seán O'Casey.
He was London-born and later lived and worked in Cornwall, initially in the artists’ colony of St Ives.
Breon was educated at Dartington Hall School in Devon and, following his national service duty, O'Casey attended the Anglo-French Art School, a small school in St John's Wood, London, based on the French model.
He was an apprentice to Denis Mitchell and Dame Barbara Hepworth, which informed his own later career.
In St Ives too, he began making jewelry as a side line, although his main occupation was always painting.
He continued making jewellery until he was 70 years old.
Baglan Mailybayev
Baglan Mailybayev( in Kazakh Бағлан Асаубайұлы Майлыбаев) was born on 20 May 1975 in Zhambyl region, Kazakhstan.
His nationality is Kazakh.
He is a politician of the Republic of Kazakhstan, Deputy Head of the Presidential Administration of the Republic of Kazakhstan, Doctor of Law( 2002)( under the supervision of Professor Zimanov S.Z.- scientific advisor and academician of National Academy of Sciences of the Republic of Kazakhstan) and Ph.D. in Political Science( 1998).
Roberto Savio
Roberto Savio( born in Rome, Italy, but also holding Argentine nationality) is a journalist, communication expert, political commentator, activist for social and climate justice and advocate of global governance.
He has spent most of his career with Inter Press Service( IPS), the news agency which he founded in 1964 along with Argentine journalist Pablo Piacentini.
Savio studied Economics at the University of Parma, followed by post -graduate courses in Development Economics under Gunnar Myrdal, History of Art and International Law in Rome.
He started his professional career as a research assistant in International Law at the University of Parma.
Seán O'Casey
Seán O'Casey (born John Casey; 30 March 1880 – 18 September 1964) was an Irish dramatist and memoirist.
A committed socialist, he was the first Irish playwright of note to write about the Dublin working classes.
Rumbold of Mechelen
Saint Rumbold( or" RumoldRomuold") was an Irish or Scottish Christian missionary, although his true nationality is not known for certain.
He was martyred near Mechelen by two men, whom he had denounced for their evil ways.
Saint Rumbold's feast day is celebrated by the Roman Catholic Church, and Western Rite Orthodox Churches, on 24 June; and it is celebrated in Ireland on 3 July.
He is the patron saint of Mechelen, where St. Rumbold's Cathedral possesses an elaborate golden shrine on its high altar, containing relics attributed to the saint.
It is rumoured that his remains are buried inside the cathedral.
Twenty- five paintings in the choir illustrate his life.
Ali Rahuma
Ali Khalifa Rahuma( born May 16, 1982) is a Libyan football midfielder who's nationality is Libyan.
He currently plays for Al- Ittihad, and is a member of the Libya national football team.
Eleni Gabre-Madhin
Eleni Zaude Gabre- Madhin, an Ethiopian economist with Swiss nationality, is a former Chief Executive Officer of the Ethiopia Commodity Exchange( ECX).
She has had many years of experience working on agricultural markets – particularly in Sub- Saharan Africa – and has held senior positions in the World Bank, the International Food Policy Research Institute( Washington), and United Nations( Geneva).

Answer: Irish