It's Always Sunny in Philadelphia Season 15 Episode 5
The Gang Goes to Ireland
The gang's in Dublin where Dennis ends up helping Frank with some of his business's dirty work. Mac and Charlie learn about their Irish heritage. Dee rushes to the set of an Irish soap opera, where she will play an "Obnoxious American MILF."
Guest Stars
Mary Elizabeth Ellis
Waitress
Sandy Martin
Mrs. Mac
Sam Lucas Smith
Conor
Kemma Filby
Bartender