The Affair star's wife Catherine Fitzgerald inherited Glin Castle in West Limerick, Ireland after her father Desmond, the last remaining Knight of Glin, died in 2011 without a male heir, but the family were forced to put it up for sale for $6 million (£4.6 million) last year (15) due to increasing maintenance demands and costs.

However, the castle has been taken off the market and the family plan to reopen it as a boutique hotel, which Catherine's dad had previously attempted in 2002, but it ended up closing seven years later due to the recession.

"Selling up was absolutely heart-breaking for all of us, especially my mother-in-law and my wife and luckily, we’re reopening it as a hotel, all going well, some time next year," he told the Irish Independent, calling the move "a marvellous U-turn".

The actor, who spends a lot of time in the U.S. for work, currently lives in London with Catherine and their three children Dora, 10, Senan, eight, and seven year-old Francis, but the family are planning to move to Ireland to help run the hotel.

"I'm going to manage it," the 46-year-old said. "I want to be in charge or as much as my schedule will allow. Obviously there will be someone in place far more experienced and qualified than I coping with the day-to-day... But we want to be there. We're going to be heavily involved. That's why we're moving home to Ireland."

Dominic explains his maternal grandparents are Irish, his sisters and cousins live in the capital Dublin and he met Catherine while studying drama at Trinity College in Dublin. The Wire actor adds, "We spend a large amount of time there already, it's for all intents and purposes home for us."

The couple married in the village of Glin in 2010.