Mafia 3 has a central character called Lincoln Clay who you control on a mission of vengeance, and he has some help along the way from a trio of leaders of local communities.
One of them is Thomas Burke. He leads the Irish Syndicate and has a strong Oirish accent and blows things up. Oh he also drinks a lot. Here's a look at the character.
Official synopsis: "A lifetime of drinking, gambling and running rackets in “Bourbon City” has taken its toll on the man and the Irish mob he runs. Then the Italian Mafia muscled into his territory. But how long can a man be pushed before he starts pushing back?"
There's some sutble characterisation there, thanks to the folks at Hanger 13, with all the points for an Irish character liberally ticked. It won't matter if he's an engaging part of the story and if the accent doesn't wear thin.
Mafia 3 is out in October, 2016.