Dean Norris, who played Agent Hank Schrader on Breaking Bad, visited St. James's Gate (the Guinness brewery) in Dublin on Friday.
After touring the facility, Norris got a lesson from Master Brewer Fergal Murray and tried his hand at pouring the perfect pint.
"Thank u #Guinness fr ur hospitality and, well, fr ur Guiness," the actor Tweeted on Saturday.
But the fun didn't stop there for Norris, who Tweeted of an "epic Irish send off" the next day.
"Epic Irish send off. Drinking till 6 am. Sing dance lotta laugh little cry @RTESatnightshow love you all … " he wrote.