The Killarney man, who lived in Castleknock, Dublin, died “peacefully” on Saturday surrounded by his family.
He will be “forever missed” by his wife Adeline; children Jonah and Líla; siblings Nancy, Paddy, Kathryn, Shelanne, Gary, Mike, and Hugh; his sisters-in-law and brothers-in-law; nieces and nephews; friends; and relatives.
A private cremation service will take place this afternoon, Wednesday 18th May, at 2pm at Glasnevin Crematorium Chapel for close friends and family.
Donie was an accomplished actor, playwright, and creative director, becoming an international star after he wrote and starred in the one-man play God Has No Country, which told the tale of Monsignor Hugh O'Flaherty’s war time exploits in Rome during World War II.
He has also been credited as the acting teacher that “discovered” Hollywood star Michael Fassbender, with whom he founded the West End House School of Arts in Killarney earlier this year.
In a piece posted on the website of their acting school, Oscar nominee Fassbender paid tribute to his mentor and praised him for having “an endless generosity both as a performer and human being.”
"The first thing that struck me about Donie was how he engaged with me as a peer and not a teenager," Fassbender wrote.
"He had a positivity to him that was absolutely infectious and an endless generosity both as a performer and human being. His talent was as much a force of nature as it was eminent. His sense of human nature was uncanny.
"He understood people's insecurities very well because he wore his own on his sleeve. Showing personal vulnerabilities so you could feel safe revealing yours. He was kind, just and honest, with a wicked sense of humour.
The Irish-German star continued: "He is remembered by his family first and foremost, which for him was where his inspiration, joy and heart belonged. The rest of us will feel blessed and lucky for whatever time we’ve been able to share in his company.
"West End House School of Arts is Donie’s legacy and we will do our very best to honour him through our work in this unique Place that he created.
"For me he will always be my mentor. I will call on him in times of hardship and crisis and celebrate moments of joy with him. He stays with me always."