Born on April 24, 1968, in Dublin, Ireland, he is a renowned actor known for his versatile roles in film and television. He gained prominence playing Stuart Alan Jones in "Queer as Folk" and Petyr "Littlefinger" Baelish in the acclaimed series "Game of Thrones." He has also appeared in "The Wire" as Tommy Carcetti and in films like "The Dark Knight Rises" and "Bohemian Rhapsody." His performances are celebrated for their depth and complexity, making him a significant figure in contemporary acting.