Quintessentially Irish

‘Quintessentially Irish’s stellar cast includes Pierce Brosnan, Jeremy Irons, two Presidents, a Prince, and an unconventional Irish Lord. Why do the Irish celebrate St Patrick when he was Welsh? Why did James Joyce only have a British passport? How did the Irishman Pierce Brosnan come to play the English spy, James Bond? Why do so many Presidents from JFK to Joe Biden claim Irish heritage? Why does Usain Bolt think the Irish and Jamaicans are so similar? Why does Prince Albert II of Monaco consider Guinness to be the family drink?